---
title: "Customizing my Xteink firmware and wallpaper"
url: https://daily.dev/posts/customizing-my-xteink-firmware-and-wallpaper-kemm2uj0p
source_url: https://cassidoo.co/post/xteink-customization
type: article
source: "Cassidy's blog"
author: "Cassidy Williams"
published: 2026-07-07T04:35:09.839Z
updated: 2026-07-08T01:00:15.376Z
tags: ["open-source", "embedded"]
reading_time: 2
upvotes: 1
comments: 0
language: en
---

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# Customizing my Xteink firmware and wallpaper

**[Cassidy's blog](https://daily.dev/sources/cassidoo)** · [@cassidoo](https://daily.dev/cassidoo) · 2 min read · 1 upvotes · 0 comments

## Summary

A personal walkthrough of customizing an Xteink X4 e-reader device, covering two main areas: custom firmware and custom wallpapers. The CrossPoint Reader open-source firmware is highlighted as the go-to option, with a note about a partially-built Connect Four game firmware (AI-assisted, available on GitHub). For wallpapers, the process is straightforward — save a BMP file named sleep.bmp to the SD card, or create a sleep folder for multiple images. Links to an image converter tool and a wallpaper directory are included.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://cassidoo.co/post/xteink-customization>

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---

Tags: [#open-source](https://daily.dev/tags/open-source), [#embedded](https://daily.dev/tags/embedded)

[View this post on daily.dev](https://daily.dev/posts/customizing-my-xteink-firmware-and-wallpaper-kemm2uj0p)