User manual

74
UNI-T
®
UT4000 User Manual
5. Failure in reading upgrade document
After selecting the upgrade document, press [F5] to read. If the document cannot be
read, you will see the prompt : “Sorry, upgrade has failed. Please contact our
after-sales service department”. It may be that our oscilloscope does not support
your USB device, or document reading is unsuccessful due to other reasons. You
can retry and see if the problem can be solved, or use a USB device we recommend.
If the problem persists, contact our after-sales service department. To resume normal
operation, power off your oscilloscope and then reboot.
Figure 5-12 Reading failure
6. Low software version
If the version of USB document is lower than that of the oscilloscope, upgrade will
fail. You will be prompted that, “Software version too low. Please read the user
manual for further instructions.” This indicates that the software version you have
saved on to the USB device is lower than the existing one on the oscilloscope. You
should acquire the correct version either online or through our after-sales service
department. To see version information, press [UTILITY] ⎯ [SYSTEM
CONFIGURATION] ⎯ [SYSTEM INFORMATION]. Please download the suitable
upgrade document.
Figure 5-13 Low software version