User guide

Resources 125
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.
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:
● You are outside a 3G or 4G coverage area.
● Your device’s internal antenna is pointing in the wrong direction.
● You are in or near a structure that is blocking the signal.
● You are near a device that is causing radio signal interference.
● A network or account problem is preventing you from obtaining service.
See also “Improving Signal Strength” on page 120.
Messages Displayed on the Device LCD
See also “SD Card Error” on page 35.
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.)
Device state
LCD state Your action
On
Off (Advanced
Settings
> Device > Display >
LCD 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 until the
device turns on.