User's Manual
7 
accessories.   
4.3 Bluetooth will disconnect when out of range.     
5. Common trouble shooting 
5.1 Unable to switch on 
Press power button for 3 seconds 
Watch must be charged fully.     
5.2 Shut down automatically 
Low power, please charge it. 
5.3 Using time too short. 
Battery is not full; please make sure it is full power (full charge needs 
2hours at least). 
During the use of SIM card, the power will be run off soon if the signal 
too poor. 
5.4 Unable to charge. 
The battery’s life will be reduced after few years, change battery when 
necessary.    Also,  check  the  charger;  make  sure  it  is  still  working.  If 
using USB, check the USB port for any problem.   
5.5 No caller’s name when incoming call 
Forgot to  choose upload the  phone book  when connected with  BT,  or 
unselected keep upload the phone book. 
Forgot to sync the phone book when reconnected, please pair the device 
and connect BT again. 
5.6 Bad phone call voice 
Watch and phone are out of range.   
Bluetooth signal is bad.   
Phone signal is bad.     










