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Sorry for my english :) If battery is connected without charger - mac turns on, not recognizing charger, not charging the battery. Other functions works good. PPBUS_G3H 10.6 volt If battery is connected and charger plugged in - all same If battery disconnected - mac doesn't turns on, 20 volts...

It still works with battery, and now it recognizes flash drives and other external devices. But doesn't recognize the charger, and won't start with charger only when battery disconnected

Hello everyone. Got this laptop yesterday, castomer says "mac doesn't charging and external usb drives can not be recognized" Mac still powers on, everything works, exept usb-c potrs. With plugged in charger usb-c meter shows 5 volt steady on one of the ports, and 5 volt rebooting every 2...

Oh, i thought i can use any T2 chip...Don't have the same donor board at the moment. Ok, anyway thank for helping!

Is it possible to install T2 from donor board and restore firmware? Or reball it? Never tryed to fix T2...

AMRestoreErrorDomain, Error 6 - Failed to handle message type StatusMsg (Operation failed) And i noticed that board is always in DFU mode. As soon as i plug in cable from one mac to another - it shoes up DFU mode

Hi, got this mac a1932 for repair. Board looks clean, never been repaired before, no corrosion or traces of liquid damage Bare board with no battery stays at 5v 0.09-0.1 amps When battery connected - switching to 20 volts, 0 amps Didn't find any short on board. F6700 was blown, changed with...

Yep, reballed PCH, still no changes. Will try to restore one more time in DFU. But looks like this board is dead (((

Took off the PCH, pp3v3_s5 is still 0v

Hello everyone. I got a Mac a2141, with massive board damage by wine. PPBUS was shorted. Removed CA780, C9573, C9574. Short is gone, PPBUS is back to normal value. Now there is 20v on charging ports, 0.03 amps PPBUS 12.6V PP2V5_NAND_SSD0 2.5v PP1V8_G3S present PP5V_G3S present PP3V3_G3H_T...

Ok, thanks anyway for an answer:giggle:

Yes, you right about miracles. But i just want to understand why ppbus is missing. Just collecting knolege and expirience piece by piese to my head :) Changed U7000 one more time, AMON and BMON is still 0 volts. Other values also didn't changed Is there something else i can pay attention to, or...

Diod mode for PPBUS - 0.42 u7000: P_in - 20.0 v Aux_det 6.6 v ( is it a normal value?) Vdda/p - 5.0 v Aux_ok - 3.4 v Amon - 0 (diode mode 0.64) Bmon - 0 (diode mode 0.64) All elements around U7000 are good. No short/values equals the schematic

Hello everyone Board came by liquid damaged and messed up by previous service. Some components are missing, dirty, CD3215 overheated etc. No voltage on USB-C meter at all What is done for now: Replaced all 4 CD3215 Replaced U7000 Soldered back missing U8000 and U7960 Soldered back missing...

Thanks for greetings! You were right, there was a short on PP5V_S4_X_USBC. C3508 was removed, short is gone, but nothing changed, still 20v 0.05 amps, PPBUS_G3H 12.6v. SSD power lines is not shorted. And PP5V_s4 is missing, S5 is present and stable. Also i found out that PP3V3_TBT_X_SX is...

Hi. First of all sorry for my non-perfect english. I have a problem with A1990 mac. It came with a corrosion on C9081 and line PPBUS_G3H_SSD1_SNS was shorted which is a very common issue on that model. After removing shorted cap mac booted and worked stable for 2 weeks, but now it returned back...