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Samsung A10 30mA Current Leakage Cannot Boot

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Defective Model: SAMSUNG A10

Released 2019, March 19

Version: SM-A105F

 

 

Defect Phenomenon

Samsung Galaxy A10 Cannot Boot, press the power button no response, and with 30mA current leakage when connected with DC power supply.

 

 

Troubleshooting

Press start-up button no response, normally is caused by below possible reasons:

1. Charging IC get damaged

2. The public voltage like V_BATTERY with problem

3. No voltage on the POWER_KEY rail

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Repair Process

Based on repair experience,first just replace a new charging IC directly, the issue still unresolved.

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Then connect the DC power supply with public voltage V_BATTERY, find 450mA current leakage.

Use the rosin inspection method, find the out the rosin on the RF chip get melted

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Get it replaced with a new one.

 

Repair Test

Assemble the phone and test, can be booted normally.

The issue get resolved.

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