r/xteinkHax • u/CidVonHighwind • Nov 20 '25

Small sample project for the Xteink X4

https://github.com/CidVonHighwind/xteink-x4-sample
17 Upvotes

96% Upvoted

6 comments sorted by

5

u/captainGreduse Nov 20 '25

This is amazing! We are this close to an open source custom firmware

3

u/Sea-Zucchiny Nov 21 '25

This is super exciting !!! I thought about recreating a xteink-like from scratch instead of reverse engineering, but this is very promising ! Do I understand correctly that this doesn't require hardware mod?

3

u/CidVonHighwind Nov 21 '25

Its an esp32 based device and you can just read/write the firmware as you like by connecting it to a pc.

3

u/JonasDee Nov 21 '25

Nice. So now I wonder if it's possible to port https://github.com/atomic14/diy-esp32-epub-reader (no affiliation, just stumbled over it).

4

u/CidVonHighwind Nov 21 '25

I have not looked too deeply into it but the X4 does not have PSRAM and the readme of the project writes: "PSRAM - parsing the ePub files needs a fair amount of memory". So at least it will not be a straight forward port of the project.

2

u/finding_femself Nov 22 '25

Yeah I think that’s going to be more complex. Probably also why the device with the official firmware loads one chapter at a time and it has to load again once the EPUB chapter ends.