Open-source E-Ink firmware

The best way to read on your Xteink.

Community-built firmware that replaces the stock software on Xteink X3 and X4 e-readers. More features, more control, fully open-source.

Flash Firmware Advanced controls
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87%
The Way of Kings
Brandon Sanderson
Browse Files
Recent Books
File Transfer
Settings
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Rendering

EPUB 2 and 3 rendering.

Parses EPUB 2 and 3 files, applies embedded CSS, and lays out chapters in the configured font, size, and margins. Chapter data is cached to SD on first open; subsequent opens are near-instant.

  • Justified text with optional hyphenation
  • Footnote links and table of contents navigation
  • Reading position persisted across reboots

It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife.

However little known the feelings or views of such a man may be on his first entering a neighbourhood, this truth is so well fixed in the minds of the surrounding families, that he is considered as the rightful property of some one or other of their daughters.

“My dear Mr. Bennet,” said his lady to him one day, “have you heard that Netherfield Park is let at last?”

Mr. Bennet replied that he had not.

“But it is,” returned she; “for Mrs. Long has just been here, and she told me all about it.” Mr. Bennet made no answer.

“Do not you want to know who has taken it?” cried his wife impatiently.

“Why, my dear, you must know, Mrs. Long

Pride and Prejudice23%
Settings
1.2.0
87%
Display
Reader
Controls
System
Reader Font FamilyNoto Serif
Download Fonts
Reader Font SizeMedium
Reader Line SpacingNormal
Reader Screen Margin20
Reader Paragraph AlignmentJustify
Embedded StyleON
HyphenationON
Reading OrientationPortrait
Extra Paragraph SpacingOFF
Text Anti-AliasingON
ImagesDisplay
Customise Status Bar
Back
Controls
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Typography

Configurable typography.

Three built-in font families (Noto Serif, Noto Sans, Open Dyslexic) and user fonts loaded from the SD card. Settings for font size, line spacing, screen margin, paragraph alignment, hyphenation, embedded style, and anti-aliasing.

Font Sizes
Small, Medium, Large, X-Large
Load Custom Fonts
Add your own TTFs via the font builder
Alignment Options
Justify, Left, Center, Right, or the Book's Style
Set Screen Margin
5–40 px, in 5-px increments

Networking

WiFi transfer and sync.

The device runs an HTTP upload server when connected to WiFi or acting as a hotspot. Drop EPUBs in from any browser or use our Calibre Plugin.

  • Joins an existing WiFi network or runs its own hotspot
  • KOReader Sync for cross-device reading progress
  • Multiple OPDS library servers configurable on-device
  • Over-the-air firmware updates
File Transfer
Server running
87%
http://crosspoint.local
Connected to home-wifi · 192.168.1.42
Uploading moby-dick.epub 68%
STOP
BACK
Localisation
UI translations for English, Spanish, French, German, Italian, Portuguese, Russian, Ukrainian, Polish,and more.
UI Themes
Four custom themes to choose from: Classic, Lyra, Lyra 3 Covers, and Roundedraff. Four screen orientations.
Calibre Plugin
Send books from Calibre to the device over WiFi via the CrossPoint device plugin.
Sleep Screens
Choose a fixed image, the current book cover, or a random image from the SD card.

Web flasher

Flash from your browser.

Writes firmware over USB using the WebSerial API. Works in Chrome, Edge and Firefox on desktop. Originally built by daveallie.

1

Select your device

Community

CrossPoint community shots.

Have a locked device?

International Xteink devices (including those from AliExpress) ship with USB flashing disabled. We recommend using the SD flashing method to get CrossPoint on your device. Please be aware that this does not unlock your USB flashing capabilities, but it does allow flashing of custom firmware.

Flash from SD card

Recommended for X3 and X4 — works even on stock firmware.

  1. 1

    Download update.bin below and copy it to the SD card root.

  2. 2

    Plug USB into power, then hold the power + up buttons (Top left button for X3).

  3. 3

    The OEM bootloader flashes CrossPoint from the SD card.

Latest stable release — same firmware for X3 and X4.

DO NOT FLASH ANY OTHER FIRMWARE THAT DOES NOT INCLUDE SD FLASHING OR OTA UPDATE FUNCTIONALITY

Stuck on a firmware that doesn't support SD flashing? Use the OTA Unlocker Tool.

Insider Builds

Nightly builds.

Nightly builds are compiled from the latest master commits and tested internally before publishing.

View Insider Builds