Looking for some advice on how to advance before I do something dumb and brick this machine. Bought the machine from Ebay from a reputable reseller who received it as part of a lot. Was able toget it up and running by replacing one of the CD3215s and it also had no backlight (flexgate). After getting everything fixed, when I turn the machine on it takes me to the login screen for the previous user (which I don't know their password) and a guest user (which only has access to Safari). I would like to use this machine, or at least get it to a usable state. At the moment, if I access recovery mode and use terminal to reset the password, it takes me to the "reset via icloud username and password" window (which I obviously dont know because I'm not the previous owner). I can also access the disc utility and have the option to delete the active partition. Clicked on it to see what would happen and it didn't ask for a password (which I am hoping is promising). I am not familiar with the T1 machines and if erasing the contents / reinstalling the OS will potentially bring me to an activation lock. I have no way of getting in touch with or finding out who the original owner is (except by googling their profile name) and the ebay seller is a reseller who received the machine in a lot, so no luck in going back through them either. Any advice is appreciated...
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Re: Macbook Pro A1707 - 820-00281-A fixed, but now what?
No wiping the device will not bring an Activation lock. Only T2 Machines do that. A1707 is a T1 machine so it will not lock if you have access to this disk.sigpic
MEOWING IN THE IMPOSSIBLE UNIVERSE! -
Re: Macbook Pro A1707 - 820-00281-A fixed, but now what?
Also you can easily wipe it. If there is a firmware password then (which assuming it does not have one if you can boot into an external usb OS) then wiping is perfectly easy. If it is firmware locked, its an easy EFI chip you can swap out or just remove and reprogram the bios. Pretty easy stuff.sigpic
MEOWING IN THE IMPOSSIBLE UNIVERSE!Comment
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Re: Macbook Pro A1707 - 820-00281-A fixed, but now what?
Fantastic! Thanks for the reply. Was lucky and there was no firmware lock or EFI lock on the machine, so it was a straightforward wipe and reinstall of the OS. Computer is good to go and working great! Thanks again!Comment
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Hi guys I have a Macbook a1707 with motherboard 820-00281, without liquid damage that behaves strangely, with the battery connected the Macbook does not turn on and the USBC meter stops at 5v in loop, when I disconnect the battery the Macbook turns on and works fine, I have already tried to replace the battery twice without success, as soon as I connect the black cable of the battery the Macbook does not turn on, it stops at 5v and in loop. -
Hello there
I have problem with Macbook Pro 15" 2017, model 2017, MB code 820-00928.
I bought it as broken with some artefacts on the screen, first I thought that this is problem with ribbon cable but after inspectiing ribbon cable I know it is fine. I tried to reinstall macOs and then I figured out that this must be something with GPU as installation freezes at the end (when drivers are loaded). I installed Windows and was able to install every each of drivers except GPU driver, as soon as I tried to install GPU driver - black screen and restart.
...11-21-2024, 05:25 AM -
Hi,
I'm having an issue with an A1707 MacBook Pro—there's no audio output. Initially, the MacBook came in with a no-power problem, and I found a faulty U6400, which I've now replaced. The laptop now powers on, but there's still no sound.
I've also replaced U6300, but the problem persists.
Here are the current voltage readings:- PPV18_S0: 1.8V
- R6402: 1V
- R6405: 1V
- R6403: 1V
- AUD_SPKRAMP_RESET_L: 1.3V
- PPBUS: 12.6V
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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,
Namaste!
We have a Macbook A1707 which came in for repair. Someone had already tried to work on it and there were traces oh heat and burns on the board.
The charger was Stuck at 5v and the there was some caps shorted around U3100.
Turns out there was corrosion under U3100. Same was Reflowed and the Macbook turned on. Works fine but having 1 issue whenever the Macbook is idle and goes into sleep mode. It will WAKE for 1 Second and then do a restart.
It will Display a Black Screen with error message saying Macbook Restarted because of a problem....
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