Sony Xperia XA1 Ultra Charging Problem Solution

 Sony Xperia XA1 Ultra Not Charging!

Sony Xperia XA1 Ultra

Case: 

Mobile phone works well, there is no problem if battery has charge on it. When I connect it to charger which shows current drawing on charge, there was no current drawing on charge. (first line and second value is zero althought it connects to mobile.)

XA1 Ultra no current draw on charge

Solution:

Let's Measure Some Points!

XA1 Ultra charging problem damaged OVP

First point is 5v Vbus from charger station, there was 5v. This means our connector, and flex are good. This point goes to OVP IC (Over Voltage Protection IC), there is an input capacitor, this point also has 5V. The second capacitor placed upperside of OVP is output capacitor of OVP circuit. There should be 5V if OVP is also good. But there is no voltage on this point! This can be caused by damaged OVP or any short on output line, when I measure short circuit on this capacitor, no faulty, It means OVP is damaged.

Solution is Changing OVP IC by new one!

or another aspirine solution ( I never recommend this but it's a solution too )

XA1 Ultra OVP IC

You can short input pins to output pins, but this means there is no more Over Voltage Protection on this phone, when this phone is exposed to high voltage again, your damaging candidate is Power management IC.

Result: 

Xa1 Ultra not charging done by replacing OVP IC

If your not charging  story like mine you can use my solution with this caution:

All risk is yours, just because this solution works for me does not guarantee that it will work for you!

Thanks.






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