FLY VK3100, Service Manual, Page: 59 / 84

VK Quality Group GSM C/S
☞
☞
Power
Power
-
-
On Trouble
On Trouble
The level of battery
Voltage is higher
Than 3.4V
When press power
button then V_CORE
or other power alright?
Charge the battery/
Check the battery.
NO
Check PMIC
NO
YES
YES
CLK 13M, CLK 32K is
alright?
When boot phone can
you hear melody
Check WHAT2
Check LCM or
Backend IC
NO
YES
NO
YES
Replace Main board
END
START