Advertisement
Checking Flow
START
Is the voltage level VBAT
3.6-4.2V?
Yes
Are all LEDs LED400~409
working?
Yes
Q400, Q402 is working?
Yes
BACKLIGHT WILL
WORK PROPERLY
No
No
Check the soldering of each R or replace LEDs not working
No
Check the condition of Q400, 402. If problem, Change Q400, 402
Charge battery
Advertisement
