Vostro 3525 Service Manual Regulatory Model: P112F Regulatory Type: P112F005/P112F006 February 2022 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Working inside your computer...................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer....................................................................................................................... 6 Safety precautions....................
Installing the speakers.................................................................................................................................................41 Hard drive assembly..........................................................................................................................................................42 Removing the hard drive ..........................................................................................................................................
System board..................................................................................................................................................................... 92 Removing the system board..................................................................................................................................... 92 Installing the system board.......................................................................................................................................
1 Working inside your computer Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your computer. WARNING: Before working inside your computer, read the safety information that is shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.
5. Remove any media card and optical disc from your computer, if applicable. 6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board. CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display. 7. Place the computer face down. Safety precautions The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
● Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage. ● Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.
Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. After working inside your computer About this task NOTE: Leaving stray or loose screws inside your computer may severely damage your computer. Steps 1. Replace all screws and ensure that no stray screws remain inside your computer. 2.
2 Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.
Table 1. Screw list (continued) Component Screw type Quantity Hard-drive assembly M2x3.5 4 Hard-drive bracket M3x3 4 Heat sink M2x3 4 Fan M2x5 2 Power button with optional fingerprint reader M2x2 (O.D. 5 mm) 1 Display assembly M2.5x5 4 System board M2x3.5 4 M2x2 (O.D. 5 mm) 1 USB type-C bracket M2x3.5 2 Touchpad M2x2 big head (O.D. 5 2 mm) 3 M2x2 big head (O.D.
1. 2. 3. 4.
5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. Touchpad Touchpad bracket Power-adapter port Solid-state drive thermal plate M.2 2280 solid state drive Palm-rest and keyboard assembly Display assembly Memory modules Wireless card with bracket Input/Output board System board Heat sink Fan Input output daughterboard FFC Hard drive NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased.
About this task Steps 1. Push the secure digital card to release it from the card slot. 2. Slide the secure digital card out of the computer.
Installing the Secure Digital card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps Slide the secure digital into the slot until it clicks into place. Next steps 1. Follow the procedure in After working inside your computer. Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SD card. About this task NOTE: Before removing the base cover, ensure that there is no SD card installed in the SD card slot on your computer.
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Removing and installing components
Removing and installing components 19
Steps 1. Remove the six screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry open the base cover from the recesses located in the U-shaped indents at the top edge of the base cover near the hinges. 4. Lift the base cover off the palm-rest and keyboard assembly. 5. Disconnect the battery cable from the system board. 6.
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Steps 1. Connect the battery cable to the connector on the system board. 2. Place and snap the base cover into place on the palm-rest and keyboard assembly. 3. Tighten the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 4. Replace the six screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. Next steps 1. Install the SD card. 2. Follow the procedure in After working inside your computer.
● Do not bend the battery. ● Do not use tools of any kind to pry on or against the battery. ● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the battery and other system components. ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.
Steps 1. Disconnect the battery cable from the system board, if applicable. 2. Remove the three (M2x3) screws that secure the battery to the palm-rest and keyboard assembly. 3. Peel the hard drive Flexible Flat Cable from the system board. NOTE: This step is applicable only for systems shipped with a 2.5-inch hard drive. 4. Remove the battery from the palm-rest and keyboard assembly. CAUTION: Carefully remove the battery so that battery does not tug on the hard drive Flexible Flat Cable.
Steps 1. Place the battery on the palm-rest and keyboard assembly. 2. Align the screw holes on the battery to the screw holes on the palm-rest and keyboard assembly. 3. Replace the three (M2x3) screws that secure the battery to the palm-rest and keyboard assembly. 4. Adhere the hard drive Flexible Flat Cable on to the battery and connect the cable to the system board. 5. Connect the battery cable to the connector on the system board. Next steps 1. Install the base cover. 2. Install the SD card. 3.
About this task The following image indicates the location of the 4-cell battery and provides a visual representation of the removal procedure. Steps 1. Disconnect the battery cable from the system board, if applicable. 2. Remove the four (M2x3) screws that secure the battery to the palm-rest and keyboard assembly. 3. Remove the battery from the palm-rest and keyboard assembly.
Installing the 4-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the 4-cell battery and provides a visual representation of the installation procedure.
Steps 1. Place the battery on the palm-rest and keyboard assembly. 2. Align the screw holes on the battery to the screw holes on the palm-rest and keyboard assembly. 3. Replace the four (M2x3) screws that secure the battery to the palm-rest and keyboard assembly. 4. Connect the battery cable to the connector on the system board.
Steps 1. Lift the latch on the battery cable. 2. Disconnect the battery cable from the connector on the battery. Connecting the battery cable Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.
Steps 1. Connect the battery cable to the connector on the battery. 2. Close the latch on the battery cable connector to secure it to the battery. Next steps 1. Install the base cover. 2. Install the SD card. 3. Follow the procedure in After working inside your computer. Memory modules Removing the memory modules Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SD card. 3. Remove the base cover.
Steps 1. Using your fingertips, carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops-up. 2. Remove the memory module from the memory-module slot on the system board. NOTE: Your computer may have up to two memory modules installed. Repeat steps 1 to 2 if there is a second memory. module installed. Installing the memory modules Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Align the notch on the memory module with the tab on the memory-module slot on the system board. 2. Slide the memory module into the memory-module slot on the system board. 3. Press down on the memory module until the securing clips click, locking the memory module in place. NOTE: Repeat steps 1 to 3 if there is a second memory module to be installed into your computer. Next steps 1. Install the base cover. 2. Install the SD card. 3. Follow the procedure in After working inside your computer. M.
The following images indicate the location of the M.2 2230 solid state drive and provide a visual representation of the removal procedure. Steps 1. Remove the (M2x2) screw that secures the M.2 thermal plate to the palm-rest and keyboard assembly. 2. Slide and lift the solid state drive thermal plate off the solid state drive. 3. Slide and remove the M.2 2230 solid state drive from the M.2 card slot on the system board. Installing the M.
Steps 1. Align the notch on the M.2 2230 solid state drive with the tab on the M.2 card slot on the system board. 2. Slide the M.2 2230 solid state drive into the M.2 card slot on the system board . 3. Place the M.2 thermal plate on the M.2 2230 solid state drive. 4. Align the screw holes on the M.2 thermal plate with the screw holes on the palm-rest and keyboard assembly. 5. Replace the (M2x2) screw that secures the M.2 thermal plate to the palm-rest and keyboard assembly. Next steps 1.
● M.2 2230 solid state drive ● M.2 2280 solid state drive The following images indicate the location of the M.2 2280 solid state drive and provide a visual representation of the removal procedure. Steps 1. Remove the (M2x2) screw that secures the M.2 thermal plate to the palm-rest and keyboard assembly. 2. Slide and lift the solid state drive thermal plate off the solid state drive. 3. Slide and remove the M.2 2280 solid state drive from the M.2 card slot on the system board. Installing the M.
Steps 1. Align the notch on the M.2 2280 solid state drive with the tab on the M.2 card slot on the system board. 2. Slide the M.2 2280 solid state drive into the M.2 card slot on the system board. 3. Place the M.2 thermal plate on the M.2 2280 solid state drive. 4. Align the screw holes on the M.2 thermal plate with the screw holes on the palm-rest and keyboard assembly. 5. Replace the (M2x2) screw that secures the M.2 thermal plate and the M.2 solid state drive to the palm-rest and keyboard assembly.
About this task The following images indicate the location of the wireless card and provide a visual representation of the removal procedure. Steps 1. Remove the screw (M2x3.5) that secures the wireless-card bracket to the system board. 2. Lift the wireless-card bracket from the wireless card. 3. Disconnect the antenna cables from the wireless card. 4. Slide and remove the wireless card from the WLAN slot on the system board.
Steps 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme for the wireless card supported by your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Silkscreen marking Main White MAIN △ (white triangle) Auxiliary Black AUX ▲ (black triangle) 2. Slide the wireless card into the WLAN slot on the system board. 3. Place the wireless-card bracket on the wireless card. 4. Replace the screw (M2x3.
Fan Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SD card. 3. Remove the base cover. About this task The following images indicate the location of the fan and provide a visual representation of the removal procedure. Steps 1. Disconnect the fan cable from the system board. 2. Remove the two (M2x5) screws that secure the fan to the palm-rest and keyboard assembly. 3. Lift the fan from the palm-rest and keyboard assembly.
Installing the fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the fan and provide a visual representation of the installation procedure. Steps 1. Place the fan on the palm-rest and keyboard assembly. 2. Align the screw holes on the fan to the screw holes on the palm-rest and keyboard assembly. 3.
Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SD card. 3. Remove the base cover. About this task The following images indicate the location of the speakers and provide a visual representation of the removal procedure. Steps 1. Disconnect the speaker cable from the system board. 2. Unroute the speaker cable from the routing guides on the palm-rest and keyboard assembly. 3.
About this task The following images indicate the location of the speakers and provide a visual representation of the installation procedure. Steps 1. Using the alignment posts, place the speakers on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly. 3. Connect the speaker cable to the system board. Next steps 1.
About this task The following images indicate the location of the hard drive and provide a visual representation of the removal procedure. Steps 1. Disconnect the hard drive cable from the system board. 2. Remove the four (M2x3.5) screws that secure the hard drive assembly to the palm-rest and keyboard assembly. 3. Lift the hard drive assembly and its cable from the palm-rest and keyboard assembly. 4. Disconnect the hard drive cable from the hard drive assembly. 5.
About this task The following images indicate the location of the hard drive assembly and provide a visual representation of the installation procedure. Steps 1. Place and slide the hard drive into the hard-drive bracket. 2. Align the screw holes on the hard drive bracket with the screw holes on the hard drive. 3. Replace the four (M3x3) screws that secure the hard drive to the hard drive bracket. 4. Connect the hard drive cable to the hard drive assembly. 5.
I/O board Removing the Input/Output board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SD card. 3. Remove the base cover. About this task The following images indicate the location of the Input/Output board and provide a visual representation of the removal procedure. Steps 1. Open the latch and disconnect the I/O board cable from the I/O board. 2. Open the latch and disconnect the fingerprint-reader board cable from the I/O board (if applicable). 3.
Steps 1. Place the I/O board on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O board to the screw holes on the palm-rest and keyboard assembly. 3. Replace the two (M2x3.5) screws that secure the I/O board to the palm-rest and keyboard assembly. 4. Connect the fingerprint-reader board cable to the connector on the I/O board and close the latch (if applicable). 5. Connect the I/O board power cable to the connector on the I/O board and close the latch. Next steps 1.
For systems shipped with a plastic chassis: Steps 1. Open the latch and disconnect the I/O daughter board cable from the I/O board. 2. Open the latch and disconnect the I/O daughter board cable from the system board. 3. Lift the I/O daughter board cable off the palm-rest and keyboard assembly.
NOTE: For systems shipped with a plastic chassis, slide the I/O daughter board cable underneath the wireless card antenna cables and lift off the palm-rest and keyboard assembly. Installing the Input/Output daughter board FFC Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Place the I/O daughter board FFC on the palm-rest and keyboard assembly. For systems shipped with a plastic chassis, slide and place the I/O daughter board FFC underneath the wireless card antenna cables on the palm-rest and keyboard assembly. 2. Connect the I/O daughter board FFC the connector on the I/O board. 3. Connect the I/O daughter board FFC the connector on the system board. Next steps 1. 2. 3. 4. Install the fan. Install the base cover. Install the SD card.
About this task NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease. The following images indicate the location of the UMA heat sink and provide a visual representation of the removal procedure. Steps 1.
Steps 1. Place the heat sink on the system board. 2. Tighten the four captive screws that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4]. NOTE: The number of screws varies depending on the configuration ordered. Next steps 1. Install the base cover. 2. Install the SD card. 3. Follow the procedure in After working inside your computer. Removing the heat sink - discrete Prerequisites 1.
Steps 1. Loosen the seven captive screws that secure the heat sink to the system board. NOTE: Loosen the captive screws in the reverse sequential order mentioned on the heat sink [7>6>5>4>3>2>1]. NOTE: The number of screws varies depending on the configuration ordered. 2. Lift the heat sink from the system board. Installing the heat sink - discrete Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Place the heat sink on the system board. 2. Tighten the seven captive screws that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4> 5 > 6 > 7]. NOTE: The number of screws varies depending on the configuration ordered. Next steps 1. Install the base cover. 2. Install the SD card. 3. Follow the procedure in After working inside your computer. Power-button board Removing the power button Prerequisites 1. 2.
Steps 1. Remove the single (M2x2) screw securing the power button to the palm-rest and keyboard assembly. 2. Remove the power button from the computer. Installing the power button Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the power button and provide a visual representation of the installation procedure. Steps 1.
Power button with fingerprint reader Removing the power button with optional fingerprint reader Prerequisites 1. 2. 3. 4. 5. 6. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the wireless card. Remove the I/O board. Remove the display assembly. About this task The following images indicate the location of the power button with optional fingerprint reader and provide a visual representation of the removal procedure. Steps 1.
Installing the power button with optional fingerprint reader Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the power button with optional fingerprint reader and provide a visual representation of the installation procedure. \ Steps 1. Using the alignment posts, place the power button with fingerprint reader into its slot on the palm-rest and keyboard assembly. 2.
4. Install the base cover. 5. Install the SD card. 6. Follow the procedure in After working inside your computer. Display assembly Removing the display assembly Prerequisites 1. 2. 3. 4. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the wireless card. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.
Removing and installing components
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Removing and installing components
Steps 1. Remove the four (M2.5x5) screws that secure the display hinges to the palm-rest and keyboard assembly. 2. Disconnect the display cable and the speaker cable from the system board (for systems with plastic chassis). NOTE: Disconnect only the display cable from the system board for systems with aluminum chassis. 3. Unroute the speaker cable from the routing guides on the palm-rest and keyboard assembly. 4.
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Steps 1. Slide the display assembly at an angle, and place the display assembly on the palm-rest and keyboard assembly. 2. Gently press down on the display hinges to align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly. 3. Replace the four (M2.5x5) screws that secure the display hinges to the palm-rest and keyboard assembly. 4. Route the WLAN antenna cables through the routing guides on the palm-rest and keyboard assembly. 5.
Display bezel Removing the display bezel Prerequisites NOTE: This procedure is applicable for systems with plastic chassis. 1. 2. 3. 4. 5. 6. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the wireless card. Remove the display assembly. Remove the hinge caps. About this task The following images indicate the location of the display bezel and provide a visual representation of the removal procedure.
Steps 1. Pry open the display bezel from the inner edge at the left and right sides of the display assembly. 2. Pry open the display bezel from the inner edge at the top side of the display assembly. 3. Continue to pry open the outer edge of the bottom side of the display bezel. 4. Pry open the display bezel from the inner edge at the bottom side of the display assembly. 5. Lift and remove the display bezel from the display assembly.
NOTE: This procedure is applicable for systems with plastic chassis. About this task The following image indicates the location of the display bezel and provides a visual representation of the installation procedure. Steps Align the display bezel with the display back-cover and antenna assembly, and then gently snap the display bezel into place. Next steps 1. 2. 3. 4. Install Install Install Install the the the the hinge cap. display assembly. wireless card. base cover.
5. Install the SD card. 6. Follow the procedure in After working inside your computer. Display panel Removing the display panel Prerequisites NOTE: This procedure is applicable for systems with a plastic chassis only. 1. 2. 3. 4. 5. 6. 7. 8. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the wireless card. Remove the display assembly. Remove the hinge caps. Remove the display bezel. Remove the hinges.
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Removing and installing components
Steps 1. Use a plastic scribe to pry the display panel from the bottom-right corner. 2. Gently start prying the display panel along the left and right sides of the display back-cover using your hands. 3. Lift the bottom side of the display panel and slide it downward to release the display brackets from the slots at the top side of the display cover. 4. Gently flip the display panel assembly forward, peel back the Mylar tape securing the display cable on the rear of the display panel.
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Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector on the display panel and close the latch. 3. Adhere the tape to secure the display-cable connector latch to the display panel. 4. Lift and rotate the display panel, and then place the display panel on the display assembly. 5. Place the display bezel on the display assembly. 6. Align the tabs on the display bezel to the slots on the display assembly. 7.
Hinge caps Removing the hinge caps Prerequisites NOTE: This procedure is applicable for systems with plastic chassis. 1. 2. 3. 4. 5. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the wireless card. Remove the display assembly. About this task The following images indicate the location of the hinge caps and provide a visual representation of the installation procedure.
Steps NOTE: Before removing the display hinge caps, open the display hinges to 90 degrees. 1. Pinch the left hinge cap in the center. 2. Using a plastic scribe pry the inner side of the left hinge cap and remove it from the left hinge. 3. Pinch the right hinge cap in the center. 4. Using a plastic scribe pry the inner side of the right hinge cap and remove it from the right hinge.
Installing the hinge caps Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. NOTE: This procedure is applicable for systems with plastic chassis. About this task The following images indicate the location of the hinge caps and provide a visual representation of the installation procedure.
Steps 1. Align the rib inside the left hinge cap to the outer sides. 2. Push the left hinge cap down until it clicks in place. 3. Align the rib inside the right hinge cap to the outer sides. 4. Push the right hinge cap down until it clicks in place. Next steps 1. 2. 3. 4. 5. Install the display assembly. Install the wireless card. Install the base cover. Install the SD card. Follow the procedure in After working inside your computer.
Steps 1. Remove the three (M2.5x3.8) screws from the left hinge. 2. Lift and remove the left hinge from the display assembly. 3. Remove the three (M2.5x3.8) screws from the right hinge. 4. Lift and remove the right hinge from the display assembly.
Installing the hinges Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the hinges and provide a visual representation of the installation procedure.
Steps 1. Align and place the left hinge on the display assembly. 2. Install the three (M2.5x3.8) screws to secure the hinge to the display panel and back cover. 3. Align and place the right hinge on the display assembly. 4. Install the three (M2.5x3.8) screws to secure the hinge to the display panel and back cover. Next steps 1. 2. 3. 4. 5. 6. 7. Install the display bezel. Install the hinge caps. Install the display assembly. Install the wireless card. Install the base cover. Install the SD card.
Steps 1. Using the pull tab, disconnect the camera cable from the camera module. 2. Using a plastic scribe, pry the camera module from the display assembly. NOTE: Start prying the camera module in a sequential order 1>2>3 as indicated on the display back cover. 3. Lift the camera module from the display assembly. Installing the camera module Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Adhere the camera module in its slot on the display assembly. 2. Connect the camera cable to the camera module. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. Install the display panel. Install the display hinges. Install the display bezel. Install the display hinge caps. Install the display assembly. Install the wireless card. Install the base cover. Install the SD card. Follow the procedure in After working inside your computer.
6. 7. 8. 9. Remove Remove Remove Remove the the the the display display display display hinge caps. bezel. hinges. panel. About this task The following image indicates the location of the eDP cable and provides a visual representation of the removal procedure. Steps 1. Disconnect the eDP cable from the camera. 2. Peel and remove the eDP cable from the display cover.
Installing the eDP cable About this task NOTE: The eDP cable installation procedure is applicable only for systems with plastic chassis. The following image indicates the location of the eDP cable and provides a visual representation of the installation procedure. Steps 1. Adhere the tape to securing the eDP cable to the display back cover. 2. Connect the eDP cable to the camera. Next steps 1. Install the display panel.
2. 3. 4. 5. 6. 7. 8. 9. Install the display hinges. Install the display bezel. Install the display hinge caps. Install the display assembly. Install the wireless card. Install the base cover. Install the SD card. Follow the procedure in After working inside your computer. Display cover and antenna assembly Replacement of the display cover and antenna assembly Prerequisites NOTE: This procedure is applicable for systems shipped with a plastic chassis only. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Steps After performing the pre-requisites, you are left with the display cover and antenna assembly. Touchpad Removing the touchpad Prerequisites 1. 2. 3. 4. Follow the procedure in Before working inside your computer. Remove the SD card. Remove the base cover. Remove the 3-cell battery or 4-cell battery (whichever applicable). About this task The following images indicate the location of the touchpad and provide a visual representation of the removal procedure.
Steps 1. Open the latch and disconnect the hard drive cable from the connector on the system board. 2. Remove the three (M2x2) screws that secure the touchpad bracket to the palm-rest and keyboard assembly. 3. Lift the touchpad bracket off the touchpad. 4. Open the latch and disconnect the touchpad Flexible Flat cable from the connector on the system board. 5. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly. 6.
Installing the touchpad Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the touchpad and provide a visual representation of the installation procedure.
Steps 1. Place the touchpad into its slot on the palm-rest and keyboard assembly. 2. Align the screw holes on the touchpad to the screw holes on the palm-rest and keyboard assembly. 3. Replace the two (M2x2) screws that secure the touchpad to the palm-rest and keyboard assembly. 4. Connect the touchpad Flexible Flat cable to the connector on the system board and close the latch. 5. Place the touchpad bracket on the touchpad. 6.
Steps 1. Remove the two (M2.5x5) screws that secure the right hinge to the palm-rest and keyboard assembly. 2. Disconnect the power-adapter cable from the connector on the system board. 3. Lift the power-adapter port from its slot on the palm-rest and keyboard assembly. Installing the power-adapter port Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Using the alignment post, place the power-adapter port into its slot on the palm-rest and keyboard assembly. 2. Connect the power-adapter port cable to the connector on the system board. 3. Fold the right hinge down and install the two (M2.5x5) screws to secure it to the palm-rest and keyboard assembly. Next steps 1. Install the base cover. 2. Install the SD card. 3. Follow the procedure in After working inside your computer. System board Removing the system board Prerequisites 1. 2. 3. 4. 5. 6.
9. Remove the heat sink. 10. Remove the display assembly. About this task The following image indicates the connectors on your system board. 1. 3. 5. 7. 9. 11. 13. Fan connector eDP connector Memory modules Keyboard-backlight FFC connector Touchpad FFC connector Wireless connector Solid-state drive connector 2. 4. 6. 8. 10. 12.
Steps 1. Remove the two (M2.5x5) screws from the right hinge. 2. Pry open the right-display hinge at an angle of 90 degrees. 3. Disconnect the following cables from the system board: a. b. c. d. e. f. g. h. I/O board Flexible Flat cable Speaker cable Hard drive Flexible Flat cable (for systems with 2.5-inch hard drive) Touchpad Flexible Flat cable Keyboard backlight Flexible Printed cable (for systems with backlit keyboard) Keyboard Flexible Printed cable Power adapter port cable eDP cable 4.
5. Remove the single (M2x2) screw that secures the system board to the palm-rest assembly. 6. NOTE: For systems shipped with a USB Type-C port, do not remove the type-C bracket that is secured to the system board. 7. Carefully lift the system board away from the chassis. Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the connectors on your system board. 1.
Steps 1. Place the system board on the palm-rest and keyboard assembly. 2. Align the screw holes on the system board with the screw holes on the palm-rest assembly. 3. Replace the single (M2x2) screw that secures the system board to the palm-rest assembly. 4. Replace the four (M2x3.5) screws that secure the system board to the palm-rest assembly. 5. Connect the following cables to the system board: a. b. c. d. e. f. g.
h. eDP cable 6. Close the right-display hinge and align the screw holes on the right-display hinge with the screw holes on the system board. 7. Replace the two (M2.5x5) screws to secure it to the palm-rest assembly. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Install the display assembly. Install the heat sink. Install the fan. Install the wireless card. Install the memory modules. Install the M.2 2230 solid-state drive or M.2 2280 solid-state drive (whichever applicable).
Steps After performing the pre-requisites, you are left with the palm-rest and keyboard assembly. Installing the palmrest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the palmrest and keyboard assembly and provides a visual representation of the installation procedure.
Steps Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest and keyboard assembly. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Install the system board. Install the power button. Install the power-adapter port. Install the display assembly. Install the touchpad. Install the hard drive assembly. Install the I/O board. Install the heat sink. Install the fan. Install the speakers. Install the wireless card.
3 Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347.
4 BIOS setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.
One time boot menu To enter one time boot menu, turn on your computer, and then press F12 immediately. NOTE: It is recommended to shutdown the computer if it is on. The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: ● Removable Drive (if available) ● STXXXX Drive (if available) NOTE: XXX denotes the SATA drive number.
Table 5. System setup options—Advanced menu (continued) Advanced Default: Enabled USB Emulation Enables or disables the USB emulation feature. This feature defines how the BIOS, in the absence of a USB-aware operating system, handles USB devices. USB emulation is always enabled during POST. NOTE: You cannot boot any type of USB device (floppy, hard drive, or memory key) when this option is off. Default: Enabled USB PowerShare Enables or disables the USB PowerShare feature.
Table 5. System setup options—Advanced menu (continued) Advanced Battery Charge Configuration Set the battery charge settings with a preselected custom charge start and stop. Default: Adaptive Advanced Battery Charge Configuration Enable Advanced Battery Charge Configuration from the beginning of the day to a specified work period.
Table 6. System setup options—Security menu (continued) Security Default: enabled Absolute ® Status Allows you to activate or deactivate the Absolute ® feature Displays if the system password is clear or set. Default: Deactivate WINDOWS SMM SECURITY MITIGATIONS TABLE (WSMT) Enables or disables configuration of platform features on Dell Client Systems with WSMT-enabled BIOS. Default: Enabled Firmware TPM Enable or disable the firmware TPM.
Updating the BIOS Updating the BIOS in Windows About this task CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system re-install. For more information on this subject, see Knowledge Article: https:// www.dell.
Assigning a system setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set. About this task To enter the system setup, press F12. Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ● A password can have up to 32 characters.
NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.
5 Troubleshooting Handling swollen Lithium-ion batteries Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer battery. Lithium-ion polymer batteries have increased in popularity in recent years and have become standard in the electronics industry due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life.
● Run thorough tests to introduce additional test options to provide extra information about the failed device(s) ● View status messages that inform you if tests are completed successfully ● View error messages that inform you of problems encountered during testing NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. For more information, see https://www.dell.com/support/kbdoc/000180971.
LCD Power rail test (L-BIST) L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash either an error code [2,8] or an error code [2,7]. NOTE: If L-BIST fails, LCD-BIST cannot function as no power will be supplied to the LCD. How to invoke L-BIST Test: 1. Press the power button to start the system. 2.
Table 11. System-diagnostic lights (continued) Blinking pattern Amber White 2 2 2 3 Problem description Suggested resolution System board failure (included ● BIOS corruption or ROM ● error) No memory/RAM detected ● ● 2 4 Memory/RAM failure ● ● 2 5 Invalid memory installed ● ● Confirm that the memory module is installed properly. If problem persists, replace the memory module. Reset and swap memory modules among the slots. If problem persists, replace the memory module.
Table 11. System-diagnostic lights (continued) Blinking pattern Amber White Problem description Suggested resolution ● ● Run "BIOS recovery from USB", and the instructions are in the website Dell support. If problem persists, replace the system board.
Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Drain residual flea power (perform hard reset) About this task Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is removed.
6 Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 12. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.com/support/windows www.dell.
