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All firmware

Reader fork

CrossInk

v1.3.3 · MIT

Typography + reading stats fork

X3 ✓ X4 ✓ Risk: Medium

Best for: Readers who want fonts, reading statistics, and Bionic Reading — and one of the two forks officially supported on locked devices.

GitHub repo Flasher / tool

What it adds

  • Reading statistics: books read, time, sessions, pages/minute, with cross-device sync and backup.
  • Bionic Reading and Guide Dots modes; extra reader fonts (ChareInk, Lexend Deca, Bitter).
  • Synthetic-glyph fallback that fixes missing Unicode characters that render as diamonds on stock.
  • EPUB dark mode, Minimal and Lyra Carousel themes, configurable controls.
CrossInk firmware running on the Xteink
CrossInk’s Reading Stats screen — sessions, reading time, pages/min, per book and all-time.

How to install

via web flasher (Custom .bin)
  1. 1

    Download a firmware-*.bin from the CrossInk releases page.

  2. 2

    Open crosspointreader.com/#flash-tools and select your model.

  3. 3

    Choose the "Custom .bin" option, select the downloaded file, and flash.

Locked devices & CrossInk

Officially supported on locked devices (the other being CrossPoint) — install it over the air with the CrossPoint OTA Unlocker. On unlocked devices, use the web flasher’s Custom .bin option.

Not sure if your unit is locked? Read the locked-device safety brief, or the full locked vs unlocked buying guide.

How to go back

  1. 1Re-flash stock — the same web flasher offers official Xteink firmware.
  2. 2Restore a backup — “Write full flash from file” if you saved one first.
  3. 3Swap boot partition — a quick rollback at xteink.dve.al/debug.

On a locked unit you lose the USB safety net — that’s why locked devices stick to CrossPoint/CrossInk.

Heads-up: A solo "personal" fork — not listed as a default in the flasher (use Custom .bin). Keep folders under ~200 files for speed.

New to flashing? The mechanics are the same across forks. See the five flashing methods on the directory, or the step-by-step flash CrossPoint without panicking guide.

Other firmware

Full directory →

CrossPoint Reader

The main community firmware

The default — best all-round reader

Full guide

Papyrix

More formats, one binary for both devices

FB2 / Markdown / HTML, multi-script

Full guide

CrossPet

Gamified reading + Vietnamese

Vietnamese UI + gamified virtual pet & games

Full guide

Microreader

Deliberately minimal, EPUB-only

Minimal, distraction-free EPUB-only

Full guide

AvesO3

For AO3 fanfiction readers

AO3 fanfiction workflow

Full guide

SUMI

Offline apps, dictionary & Lua plugins

Offline apps, dictionary, Lua plugins, emulator

Full guide

CrossInk details verified June 24, 2026 against its GitHub repo, README and releases. PocketInk is independent and not affiliated with Xteink. Firmware names and versions change quickly — check the repo for the latest.