How would I know how to edit hex of laptops internal vbios?
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Last edited by macattack600; 08-09-2019, 09:17 PM. -
Re: Need to Edit Vbios on Hex level BGA SWAP Macbook
For what purpose ? -
Re: Need to Edit Vbios on Hex level BGA SWAP Macbook
I changed the GPU from to 7700m from 6770m with rework station BGA pinout exactly the same , I get blackscreen but keyboard lights up ,the job is done right I've done many
No external monitor tried other case same thing.
I'm thinking all I need is the AMD7000Controller.kext I have idea how to get to terminalLast edited by macattack600; 08-10-2019, 09:13 AM.Comment
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Hi everyone!
I have a 2018 MacBook Pro (with Sequoia OS) that I've been using for years with no problem. I recently received an M2 MacBook Pro so I'm mostly using it and not the 2018 one, but since a friend of mine needs a computer, I thought I could restore my 2018 and give it brand-new-like to my friend.
I tried using the built-in tool to restore the MacBook (Settings > General > Transfer or restore > Delete) but it got stuck when trying to remove the Find Device configuration (it asked me for the password for my old Apple ID -now I use the same account but...06-27-2025, 08:54 AM -
I couldn't find a post related to this, so if it exists please point me in that direction.
I have a 2019 MacBook Pro 16" 1TB with a dead embedded NAND. I've seen some information about how it is possible to swap NANDS from certain boards, but it has to be a matching set.
I have a MacBook Pro 2017 logic board 820-00923-A 1TB on hand that is new in the box. It should be possible to match up the NAND 0, 1, 2, 3 chips and transplant them onto this 2019 board... in theory. Has anyone approached this, or has success in doing this?
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1. RESET MACOS WITH IPSW
a. Power off MacBook, press and hold the power button to enter Recovery
b. Open Disk Utility, remove Macintosh HD
c. Reboot, connect to the network to Activate Mac.
d. Plug the C cord in the first port of the MacBook into the other Mac, then power off the MacBook
d. Hold down the Control (L) + Option (L) + Shift (R) + Power key combination for 10 seconds
e. Release the other keys, but keep holding the Power key for another 10 seconds
f. MacBook is returned to DFU, open Apple Configurator 2 on the other Mac, right-click... -
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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I’m working on one macbook air 15” m2 that was water damaged.
keyboard, lcd, microphone connectors were damaged so i’ve replaced all of them and without screen connected macbook worked fine. Keyboard &trackpad and also lid sensor was working fine.
i’ve put macbook in shelf and order new screen so i can fully repair it.
Now i got the screen and macbook stays at 5v 0a.
i’ve tried if it’s not in DFU with another macbook but it’s not detected at all.
i don’t have schematics so i don’t know where to start can someone help me?...
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