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The customer said he kept it a long time, but suddenly one day doesn't work ... No water shades ,,,, I can see the fan is running, tried to revive but no USB activity was detected. Not booting , Not going to recovery mode.... Here are some voltages after detaching the board CHGR_LX1...

The problem simply solved by disconnecting the LCD connector and connected again...

Yes its a different board, I only have an LCD that is compatible with A1706, Nothing for A1708 ...

https://drive.google.com/drive/folders/10Ia6Sq0CeH9MFBkmIE-rFhPSS-MbJTrr

The connector was bad , tried to change the connector . It was a very temperature sensitive part , I have spoiled more PCB pads... Apparently I have stopped working on this particular logic board and replaced it with another one.... Now I have a different problem.. Board brightness is keep...

Yes trackpad is working good , fan also working, I can see that the apple logo stays more than usual time before boot up

The fan was making a noise, Replaced with an old one, I think the replaced fan had an internal short, I immediately removed the bad FAN, Replaced it with a new one... Now the keyboard is not working anymore... Rest all fine... PP3V3_G3H_KBD - 3.4 11V PP5V_S0_KBD - 5.1 V PP3V3_S4_KBD - 3.3V

Yes Confirmed the continuity

It is steady and 2.681V

Just changed the trackpad alone , not the flex ... Now trackpad working but keypad is still not working

Is it normal that the keyboard stop functioning if the trackpad or it's flex damages ?

Keyboard and touchpad not working after battery replacement ☹️.

Indeed, It's from aliexpress, Confirmed its bad display, I suspect that they have not coated/masked the flexgate cable solder points (Which is not the case in the original display).

I have replaced the Display assembly with a new one and now the client complains that the "CAMERA NOT AVAILABLE " error when he opens the Facetime, What could be wrong?

Please note that the issue is not just for Monterey, It's failing to load any OS including old OS's

https://drive.google.com/file/d/13W_i0X7FI46hfzpzUF916jdUDc3NBWEu

I have tried to upgrade the os from preloaded bigsur to Montero while upgrading it's stopped " Installation can not proceed because the installer is damaged" What does it mean ?

Tried LAN, but That doesn't help. For the time being, I have used a pre-loaded internal SSD But a bit afraid that customer will face the same problem when they get the upgrade option.

Unfortunately the restore option is failing when I try from an external SSD. Please find the error details attached in the link. Also tried to install macos X (using Ctrl+R) I got the same error again.

https://drive.google.com/drive/folders/1LAIOQ_KmtSd16uVYzcPhsclQXO5HrGxe error - “An error occurred loading the update “ Consistently failing OS update, I have tried with high speed internet Tried with new ssd