Hello everyone,

This is my first post after browsing this wonderful treasure trove of knowledge for many, many evenings. I've decided to learn how to fix these things, properly.

My patient is an A2338 Macbook Pro M1 (late 2020).

It had some corrosion around JT710 and JT700 caused by liquid spill, as well as against the protective barrier around the USB-C chips UF000 and UF100. So I took the main board out and cleaned it with a toothbrush and alcohol, then with alcohol in an ultrasonic cleaner. Cleaned the touchbar flex connectors as well. The board looks...

Hi! This Mac has been an headscratcher for me, I can't seem to figure out the issue. The Macbook has gotten water damage to the front of the keyboard connector and battery connector. The keyboard connector was dead, by which I mean it was completely corroded and I have replaced it with a brand new one.
I have verified all the pins are connected to the main board and the main voltages (PP1V8_AONSW_KBD_ISNS and PP3V3_AON_KBD_CONN) are both present, with and without keyboard attached.

Unfortunately, the keyboard does NOT want to work, caps lock LED not functioning as well as any...

Hi to all,
the owner of this macbook brought it to me after a fall, that hit the upper right corner of the top case.
Luckily enough, the screen and all other parts of the machine haven't been damaged, only the touch bar wasn't lighting up anymore, and the macbook began to behave strangely, because it seems to start and work fine but suddendly it shutsdown (and at the same time the fans make a high rotation for half a second, as if an animal was annoyed by something...) at random times, sometimes after 2 minutes, sometimes after 5 minutes, but never over 10 minutes, then restarts...

hi all,

i am working on macbook pro A2338 820-02020 can turn on but keyboard and trackpad not functioning.
no sign of water damage.

measurements:

TPAD_KBD_WAKE_L = 1.78V
KBD_INT_L = 1.8V
SPI_TPAD_INT_CONN_L = 1.77V
IPD_LID_OPEN_1V8 = 0V
I2C_SMC_IPD_1V8_SCL = 1.79V
I2C_KBD_SDA = 1.84V
SPI_TPAD_MOSI_CONN = 0V

IPD_LID_OPEN_1V8 = 1.8V when open lid
anyone can help?

Greetings everyone.
I've been trying to resolve the above problem, I need insight into the next step to take. This will be my first time handling this kind of machine hence, any replacement part will need to be ordered for since I do not have replacement parts.

readings on the MB:
PPBUS_G3H is present (12.23v)
PP3V3_G3H is present (3.27v)
PP1V8_SLPS2R is present (1.7v)

The C-ports behavior:

The port that communicated with U3200 delivered the above readings although the u3900, u3100, u3200 regions warmed up.

However, the...