Hello, I get a MacBook A2159 to repair, but unfortunately I am stuck at this point: I have the S5 enables but not any S5 Rails... They are not shorted. In Apple Configurator 2 I have an error (the Mac always shows in recovery mode). In DFU mode I get pretty much the same error. Most likely saying to check the USB connection or that the system gave a bad feedback.
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I am looking at an A2337 and found this for the order of power rails and what they do. Can this be confirmed before I dive into hunting down power rails that do not exist or are not neccisary?
- PPBUS_G3H (12.6V-12.8V)
- This is the main power rail that supplies power to the entire system. Check this rail first, as it must be present for other power rails to work.
- PP3V42_G3H (3.42V)
- This power rail is derived from PPBUS_G3H and is used to power the SMC (System Management Controller) and other essential circuits. It should be present if PPBUS_G3H is working correctly.
- PPVRTC_G3H (3.3V)
- This
- PPBUS_G3H (12.6V-12.8V)
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Hello everyone,
This is my first post on the forum
I recently purchased a MacBook A2141 from a colleague at work, which had issues with the dedicated GPU. The system occasionally displayed artifacts on the screen and sometimes experienced kernel panics related to the GPU. Interestingly, applying pressure to the VRAM module would temporarily resolve the artifact issues, which made me optimistic about the ease of repair.
Board: 020-01700, Config: Intel i7, 512GB SSD, 16GB Ram.
Before completing the purchase, we decided to erase... -
Hello everyone,
I'm currently diagnosing a MacBook Pro A1707 motherboard that does not power on. I've gathered some data but am stuck and need expert advice.
Note that i'm a beginner in electronics and i'm trying to learn while trying to repair this macbook that my work gave me. I'm really curious and love understanding how thing works and i already learned so much.
Only one usb c port is taking 20v and have 12.5v on PPBUS_G3H. when trying other ports, 2 are not going to 20v and one is going to 20v but the CD3215 is getting really hot.
Observations... -
Hello! Please help with a strange disease that I have never encountered before.
At first I got the following status:
MacBook does not turn on. Current consumption is about 0.500-0.600A at 20V from USB-C.
- no signs of rust, or spilled water
- CPU gets hot, fan still spins, no Capslocks light
then I cleaned it and I got the following video:
- Cannot install software, and after a while I get a red screen and the whole thing freezes
Macbook Pro A2159 / Bệnh lạ07-28-2025, 11:35 AM -
I need dump file for nand A2159 512GB with 2 Nand chips >.I upgraded 128gb to 512gb..I use P13 there are only 4Chips...
I need dump file MACBOOK PRO A2159
TSB4232(256)
TSB4229(256)
Thanks