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.
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.