the heatsink was removed in order to clean the board in the ultrasonic cleaner. The original thermal padding is crumbling so I replaced the thermal padding with thermal paste but that doesn't seem to be adequate. any suggestions?
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Re: 2019 macbook air cpu issue
Tim explains this here:
https://www.youtube.com/watch?v=4-BL...el=TCRSCircuit
He has the compound for this available here:
https://www.tcrscircuit.repair/store...nge-p431542332 -
Re: 2019 macbook air cpu issue
thanksComment
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Hi everyone,
I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.
⚠️ New Problem: One USB-C Port Only Works in One Orientation... -
I have this MacBook Pro on my bench that I have already fixed, hard short on a SSD rail, but it also has another issue. the right speaker sound is either earrape, muffled or absent. Left one works perfect. I have tried replacing it, nothing changed so I'm pretty sure the issue is either motherboard related or maybe software but I doubt that.
I don't how to troubleshoot speakers. Any help would be very much appreciated.
A refurbisher and a repair shop have already been inside the laptop but I'm pretty sure none of them tried to do any soldering on the board. -
MacBook Pro 2019 A2141 820-01700 NAND Issue Stuck in DFU
Ok, here's an issue ive got on a A2141 820-01700 MBP 16' 2019. No signs of life, 5.06v 0.0a on usb-c meter, on each 4 usb-c ports.
Nand voltages are missing.
I've found no shorts at all so far, no signs of heat via thermal camera either.
PPBUS_G3H 12.31
PP3V3_G3H_RTC 3.387v
PP3V3_G3H 12.31v
PP2v5_NAND_SSD0 0v 58 ohms
PP2v5_NAND_SSD1 0v 57.8 ohms
PP1v8_SLPS2R 1.8v
PP1v1_SLPS2R 1.1v
P3V3_G3H_SOCPMU 3.37v
PP0V9_SLPDDR 0.9v... -
hi
i whant unlock macbook pro A1932 2019 whit ibridge 9,3 ;
i change efi files find on files mina T2 activator 1,4 and use for activation mina T2 activator 1,3 , but fault ssh?
i use mina T2 ramdisk activator 1,0 and 3,0 . but whon t work ?
have you other programme or method compatible whit this macbook ibridge 9,3 for bypass ?
I need help or information?
Does anyone have the minat2 activator 1.4 software?
Or did they use it for bypass macbook air 2019 a1932 with new ibridge 9.3?
Thank yo...03-12-2025, 10:14 AM -
Board powers on, holds charge it seems, track pad clicks, display is working etc. When trying to boot it turns itself off and then boots again and repeats. If it stays at GLOBE icon it will not turn off. Customer needs data, enabled THUNDERBOLT Mode, plugged in Thunderbolt cable, but error comes "THIS DISK CANNONT BE UNLOCKED DUE TO AN ERROR" I can't even input a password. Did a soft restore to retain data to see if it will solve any firmware issues. Nothing, I do not want to restore the computer because the customer needs the data, computer stays on completely when at Globe or...
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