Status update :
I flashed both kernels and the diags partition, then rebooted in diags, with no luck, BUT, and it's a big but (easy one, but I couldn't skip it...), I was able while booting in diags mode to access recovery.
The battery error is gone.
I was able, with the recovery method, to flash the 4.3.2 initial firmware, but it doesn't to boot. I have another "your kindle needs repair" message, but no error indication.
I wanted to try and install the last 5.8 firmware from Amazon, but the Kindle doesn't accept it from recovery.
I have no clue as to why the firmware doesn't flash, but for the 4.3.2, maybe it has to do with the idme variables still cleared (mainly both mac addresses are unset, along with the postboot variable, which I have no idea how to fill).
Do you know of a way to find out both Mac addresses of the device, and what I should have in the postboot variable?
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