Never noticed excessive battery drain before/after I completed the Audio IC repair many months ago.....
Now.....
Only extra installed app was Phone Diagnostics - otherwise factory installed apps only. Then, when in order to eliminate software as cause of drain, I attempted via 3U Tools to update to IOS 14.6 to bring the problem motherboard's software inline with known good board.
1. Quick flash - fails at 80% error code 1 ✘
2. Deep flash - stuck at 60% Unknown Request(PersonalizedData) ✘
Tried restore, then DFU mode. Fails as above, remains stuck in recovery mode.
Prior soldering work(by me)
1. Audio IC jumper repair - successful - no loss of Baseband function..(done MANY months ago)
2. U3502 IC replacement (attempt to address non working vibrator) - there was a short on PP_ARC
3. Trinity replaced (went short after U3502 IC replacement)
4. U3502 replaced again (2nd attempt to address non working vibrator) - no short on PP_ARC this time but vibrator wasn't working either.
Abandoned repairing vibrator and reassembled
That was when excessive battery drain was first observed.
Could the battery drain and corruption? that has left the board in it's present state be attributed to my soldering?
Now.....
- Phone boots to the home screen ok(though the boot time is longer than usual)
- Phone charges fine - current draw = known good
- charging time 0-100% = known good (3 hrs)
- battery drain excessive (standby mode/screen off - 6% per hour)
- motherboard swapped from its own into known good housing - battery drain remains 6% per hour)
Only extra installed app was Phone Diagnostics - otherwise factory installed apps only. Then, when in order to eliminate software as cause of drain, I attempted via 3U Tools to update to IOS 14.6 to bring the problem motherboard's software inline with known good board.
1. Quick flash - fails at 80% error code 1 ✘
2. Deep flash - stuck at 60% Unknown Request(PersonalizedData) ✘
Tried restore, then DFU mode. Fails as above, remains stuck in recovery mode.
Prior soldering work(by me)
1. Audio IC jumper repair - successful - no loss of Baseband function..(done MANY months ago)
2. U3502 IC replacement (attempt to address non working vibrator) - there was a short on PP_ARC
3. Trinity replaced (went short after U3502 IC replacement)
4. U3502 replaced again (2nd attempt to address non working vibrator) - no short on PP_ARC this time but vibrator wasn't working either.
Abandoned repairing vibrator and reassembled
That was when excessive battery drain was first observed.
Could the battery drain and corruption? that has left the board in it's present state be attributed to my soldering?
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