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Recent content by 2informaticos
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For testing purpose, you can make a bypass over Q3100, or Q3200; depends which channel doesn't...
For testing purpose, you can make a bypass over Q3100, or Q3200; depends which channel doesn't work properly. However, you MUST use a diode (connected correctly), if you want to use it in this way. If you leave it with direct bypass, will fry an external device connected on that port, when the...- 2informaticos
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MacBook Pro M1 - 820-02020 stuck on 5V 0.21A
Still low reading (0.083) at PPVDD_DISP_S1? If yes, remove L8280/1 and R820C. If still low, bad CPU, or some filter capacitor (less probable). If goes high, bad MPMU (U8100).- 2informaticos
- Post #9
- Forum: Macbook Logic Board Repair Questions
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A2159 820-01598 20V 0Amp on Battery.
Did you get CD3217 chips from same model donor board? Maintained their position on the board? Try reflashing TBT ROM; make backup first.- 2informaticos
- Post #2
- Forum: Macbook Logic Board Repair Questions
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A3113 Air with lid angle sensor issue
It should be embedded into keyboard backlight sheet. You can check at JT120...- 2informaticos
- Post #5
- Forum: Macbook Logic Board Repair Questions
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A3113 Air with lid angle sensor issue
Check UR300 signals.- 2informaticos
- Post #2
- Forum: Macbook Logic Board Repair Questions
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A2141 820-01700 2 Right side USB-C ports bad
Compare diode mode readings between left/right USBC areas. Use S-UEM2 tester, if available. Also check UB700 signals when external device is connected to right side ports.- 2informaticos
- Post #4
- Forum: Macbook Logic Board Repair Questions
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A2141 820-01700 2 Right side USB-C ports bad
"short in pp2v5nand" Dead SSD???- 2informaticos
- Post #2
- Forum: Macbook Logic Board Repair Questions
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820-01700 Charge issues
May need to try restore, instead of revive. Save data first...- 2informaticos
- Post #15
- Forum: Macbook Logic Board Repair Questions
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820-01700 Charge issues
What said the customer about how the fault appeared?- 2informaticos
- Post #13
- Forum: Macbook Logic Board Repair Questions
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A2338 820-02020 no loudspeakers
Level should be high. Not sure without speakers connected; just compare with good board.- 2informaticos
- Post #16
- Forum: Macbook Logic Board Repair Questions
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A2992 (820-02918-A) DFU Restore Is Failing(?)
Connect charged battery and trackpad when try DFU.- 2informaticos
- Post #2
- Forum: Macbook Logic Board Repair Questions
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A2338 820-02020 no loudspeakers
Check SPKRAMP_1V8_RESET_L level.- 2informaticos
- Post #14
- Forum: Macbook Logic Board Repair Questions
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A2681 820-02872
Do you still get dimmed image on internal screen? Caps Lock LED reacts?- 2informaticos
- Post #6
- Forum: Macbook Logic Board Repair Questions
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A1534 820-00244 no power
Too much heat probably. Check CC1/2 lines...- 2informaticos
- Post #4
- Forum: Macbook Logic Board Repair Questions
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A1534 820-00244 no power
Possibly CPU failure. Test heating it...- 2informaticos
- Post #2
- Forum: Macbook Logic Board Repair Questions