Samsung gt s7262 Samsung Galaxy Star Pro Duos S7262 Dead Solutions

Cell phone can`t power on. Solutions

Step 1
Check the Battery Voltage.
Is it more than 3.5V?

Charging the battery by TA.
If its voltage level is extremely low(under 3.0V),
Change the battery.

Step 2
Power-on the phone and check
the power-on current ≥ 100mA

Change the FRONT LCD Assy.
or re-download binary

Step 3
Check the ONKEY
(TAC401)

Change the TAC401.
And re-try to the power-on operation

Step 4
Check the UCP300 output
voltage. (C338 ≒ 1.1V)

If the output voltage is not satisfied with normal
condition, Change the UCP300
※ Each voltage level has ±10% margin

Step 5
Change PBA

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