5 ms·
The JTAG angle is unnecessary, and difficult to do in practice with this LGA70 chip face-down soldered onto the logic board. It really means there is a Cortex-
by revelation 10y ago
The JTAG angle is unnecessary, and difficult to do in practice with this LGA70 chip face-down soldered onto the logic board.
It really means there is a Cortex-A (so lots of brunt) with a firmware update mechanism that has 1) direct access to the application processor RAM and 2) direct access to the plentiful permanent storage.
- huslage 10y agoHe made a board so that he can do JTAG in-line. Not sure how else he could tell the processor to do something.
- AstralStorm 10y agoBy flashing custom unverified firmware, of course.
- CountSessine 10y agoFlashing custom unverified but somehow-signed-with-Apple's-secret-key firmware?