ALL SET DEAD SOLUTION

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Here some techniques and steps to repair dead condition in mobile phones irrespectively of brands
First of all let us now about the main functions to power on a mobile phone you can consult our previous lesson (STTI),

Steps to Repair X2-05 Dead Set

Check Key Component functions:
1 Battery 3.7v
2 Power Switch
3 battery terminal
4 Power IC
5 Oscillator
6 Frequency divider
7 CPU
8 Flash (ROM / EEPROM)