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Samsung Hardware Repair Post here your Hardware Repairing Hints or Problems with Samsung Phones. |
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04-20-2014, 21:23 | #1 (permalink) |
Freak Poster Join Date: Jan 2013 Location: Switzerland Age: 48
Posts: 408
Member: 1873863 Status: Offline Thanks Meter: 67 | i9100 - U504 very hot on charging I have 2x samsung i9100 with the same symptom. During the charge by power adapter, the chip U504 becomes very very hot, i can't touch it. Temperature read by command *#0228# grow up until 80° , and this is dangerous for the battery (and for the customer). The phones are working correctly, and it look like the battery is really charging (at least.. i see the % increasing). The other problem is that sometime the phone doesn't show the correct voltage of the battery. What i have done is to check for shorts, no short on VBAT and no shorts on the capacitors near U504. I have also tried to replace U504 but still same problem. Checked for shorts in every line to and from U504 and nothing found. Can be this problem related to U503, even if this chip does not heat and does not have shorts ? Thank you for your help ! |
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