User guide

Resources 131
Resources
LCD Is Dark
The following table describes situations that can cause the LCD to be dark (that is, not displaying
any text or icons), and recommends actions.
Device state
LCD state Your action
On
Off (Advanced
settings > Device > Display >
L
CD Backlight
is set to “Off”)
Turn on the LCD: set LCD Backlight to “On.”
On On, but dormant (inactivity timeout)
Briefly press the power button on the device.
Off Off
Turn the device on:
● Make sure a battery is inserted into the device.
● Press the power button on the device for
approximately two seconds.
If the LCD is still dark, use the micro-USB cable to connect the device to the AC charger or to a
computer.
Insufficient Signal Strength
If you have insufficient signal strength, the icon is displayed on the left side of the home page.
Insufficient signal strength may occur because:
● Y
ou are outside a 3G or 4G coverage area.
● Y
our device’s internal antenna is pointing in the wrong direction.
● Y
ou are in or near a structure that is blocking the signal.
● Y
ou are near a device that is causing radio signal interference.
● A network o
r account problem is preventing you from obtaining service.
See also “Improving Signal Strength” on page 126.
Messages Displayed on the Device LCD
See also “SD Card Error” on page 38.
3G Activation Failed
1. Make sure you’re in 3G coverage and the signal strength is strong.
2. Turn the device off and on. (See “Turning Your Device Off” on page 14 and “Turning Your
Device On” on page 13.)