Hello. If you could please help me understand what I am doing wrong...
This model, Macbook Pro 2019 16" A2141, 512GB, EMC 3347, with T2 Security Chip, had 4 NAND Chips shorted in 1 wing (U9100, U9200, U9300, U9400) and it has 1 more in the 2nd wing (U8600) BUT NOT shorted. All chips are TSB4227 TOSHIBA-KIOXIA SN4192TWNA12014 BGA110 128GB. I got 4 new nand chips for 1 wing and programmed them by specific position of course with JCID P13 programmer.
I also replaced the tps power ic for the ssd.
Now all rails come up, including the ssd rails 0.9v, 1.8v, 2.5v.
Now I try to restore the board with Apple Configurator on host machine. I connect power to the board, the trackpad, and a type c cable to the nearest port to the trackpad and then to the host.
The recovery comes up, I press restore but the process fails during installation after 30 seconds approximately (noticed that it loses ssd 2.5v for 1-2 seconds and comes back), and this error comes out:
THE SYSTEM CANNOT BE RESTORED ON THIS DEVICE - RESTOREOS DEVICE REMOVED BEFORE RESTORE COMPLETED [COM.APPLE.MOBILEDEVICE.MOBILERESTORE-0XFAA (4010)]
I am thinking maybe the 5th nand (U8600) on the 2nd wing needs also programming with JCID P13, although it remained alive and intact? Can someone verify this?
If not, do you have any other idea what this error could be or what to check?
Thank you in advance.
This model, Macbook Pro 2019 16" A2141, 512GB, EMC 3347, with T2 Security Chip, had 4 NAND Chips shorted in 1 wing (U9100, U9200, U9300, U9400) and it has 1 more in the 2nd wing (U8600) BUT NOT shorted. All chips are TSB4227 TOSHIBA-KIOXIA SN4192TWNA12014 BGA110 128GB. I got 4 new nand chips for 1 wing and programmed them by specific position of course with JCID P13 programmer.
I also replaced the tps power ic for the ssd.
Now all rails come up, including the ssd rails 0.9v, 1.8v, 2.5v.
Now I try to restore the board with Apple Configurator on host machine. I connect power to the board, the trackpad, and a type c cable to the nearest port to the trackpad and then to the host.
The recovery comes up, I press restore but the process fails during installation after 30 seconds approximately (noticed that it loses ssd 2.5v for 1-2 seconds and comes back), and this error comes out:
THE SYSTEM CANNOT BE RESTORED ON THIS DEVICE - RESTOREOS DEVICE REMOVED BEFORE RESTORE COMPLETED [COM.APPLE.MOBILEDEVICE.MOBILERESTORE-0XFAA (4010)]
I am thinking maybe the 5th nand (U8600) on the 2nd wing needs also programming with JCID P13, although it remained alive and intact? Can someone verify this?
If not, do you have any other idea what this error could be or what to check?
Thank you in advance.