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MacBook A2141 820-01700

2informaticos

2informaticos

Administrator
Staff member
That is not BIOS, but important T2 information stored there.
Sometime DFU can't be completed because of its corruption.

Don't forget to make backup first.
Be aware, is 1.8V SPI chip.
 
I

iFix

Member
Just to recap... The laptop goes to 20v and also goes to DFU mode, that was before I reprogrammed it. I will change the file again and revert
 
I

iFix

Member
This is with DFU mode, both ways it goes with KB buttons and with short on SKW003, and it comes to this
 

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I

iFix

Member
Just to be clear the File that you sent me, was not accepted it stays on 5v like the others, only the original lets me get to the Booted state
 
L

loic2907

New member
iFix said:
Hi.

I'm back on this one. I received the SSD chips. 6 x 128GB TSB4228. In the package, they sent 6 chips of which one was from a different spot. I first tried to solder them as they were from the spots where they came from since the supplier advised us like that, but it didn't work. Then I took them out again, but this time I reprogrammed them with the P13 and for the first time the process of Revive went through and I get to the Lock sign as referred on the Wiki page. After I do the Revive it says the Apple Controller is Booted, but I cannot restore it, and even during the Revive process I don't get the Logo as normally should. I attached pictures of different variants of the process but I think it gets stuck on Exclusive Device Connection. Also, note that when I wanna reprogram the chips on P13 the only combinations that it shows are 1Tb and 512GB.

Any ideas would be appreciated. Thanks
Click to expand...
You problem can be here.
You have 128G nand, or your configuration is 6, so you need 192G NAND.
 
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