Hello everyone,
first post here.. I have been lurking around and decided to make this post because I think the pieces are here, it's just that no one has put them together yet..
I do NOT like Calibre or all of the available Library managment software and would just rather copy the whole thing or be able to access it over ftp/smb from the Kindle..
So, this brought me to the quest of trying to upgrade my storage..there was a good time in this scene when many of these tablets had an internal sdcard baked onto the motherboard that could be changed to increase storage or recover from a brick... but apparently those days are past us unless we can make progress in the
right to repair movement..which i recommend everyone here to support btw.
Now, We have 2 options 1-
change onboard NAND which would be annoyingly difficult or 2-
add another device
and here comes the questions.. we so far know that this thing runs on a i.mx single-what-not processor..
does anyone have documentation on this core or on any of its siblings??
does anyone have a schematic or a boardview of the PW4 logic board ? , seen them at least !?
I have already seen some of the 'teardowns' and pictures posted here and they do not provide much in the way of tangible information for this endeavor. My plan so far is to find out what interfaces we can speak to and work from there.. An SPI could pose a problem with the software stack side. But I'll take what I can get. A USB would be ideal especially if they already enumerate in the tablet as is. Last choice would be sacrificing the USB port if it can run in host mode or even OTG mode.
I'm lacking on free time these days but I'll see how to get to a terminal on this device and start looking around from there. being a linux person should come in handy.. anything I shouldn't do in /dev or /sys that you guys want to tell me about now before I start making posts in the unbrick section?
Thanks for reading this far

, now tell me what you think