User's Manual
GL100 User Manual            
12 
9 Troubleshooting and Safety info 
z  Troubleshooting   
Trouble  Reason  Solution 
The SIM card is not 
inserted. 
Please insert the SIM card 
into GL100. 
After GL100 is turned 
on, the RED LED 1 
flashes quickly always. 
The signal is too weak; 
GL100 can’t register to the 
network. 
Please move GL100 into a 
stronger signal place. 
z  Safety info 
¾  Please do not remove the battery when GL100 is charging or it connects with PC. 
¾  If GL100 can not be turned off properly, please remove the battery for at least 3 
seconds. Put the battery back and then restart the device. 
¾  When the device is ringing, please first press the answer button; next bring it to your 
ear to avoid the ringtone damaging your ear. 
¾  Please do not put the device on the overheating or too humid place, avoid exposure 
to direct sunlight. Too high temperature will damage the device or even cause the 
battery explosion.   
¾  Please do not use GL100 on the airplane or near medical equipment.   










