Quote:
Originally Posted by DarkHelmet
I got a new Kindle PaperWhite 5 Signature Edition (2021) (PW5SE) that came with 5.14.3.0.1 on it. I opened it up ( video if you want to see) and can't seem to find a serial port on it.
Has anyone worked with one of these? It looks like there's some kinda JTAG/eMMC connector on the back of the board in the FCC pictures, but they are too low res to make sense of it, and I didn't want to try ungluing that board. Same with removing the MMC chip to read it.
I have some more pictures of it up on my wiki.
I'm thinking this may use the USB C as a debug port, but thought to ask here if anyone has worked on this before. I'd say perhaps an OTG adapter and a FTDI port might work, but as this has to be in the bootloader, it needs to be real async port. Has anyone worked on this before? |
You're not the first to notice this - the board submitted for FCC certification appears to have a serial port but every PW5 that I've seen in the wild lacks it. It's possible that the serial port is still accessible using the 2 tiny test points next to the digitiser connector on the bottom right or via one of the test points that are likely to be on the back of the board.
However, you're unlikely to be able to unlock your PW5 even if you find it, the last few generations of devices have been pretty comprehensively locked down.