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Niche / specialized

AvesO3

v1.3.1 · MIT

For AO3 fanfiction readers

X3 partial support X4 supported Risk: High

Best for: Heavy Archive of Our Own readers with an unlocked X4.

Open the flasher GitHub repo & releases

What AvesO3 adds

  • An AO3-styled library browser with per-fic status icons (unread / reading / waiting / new chapter / finished).
  • Checks AO3 for and downloads new chapters on-device over WiFi, no PC or sync tool needed.
  • Pin longfics to the homescreen so oneshots don’t bury them.
  • Built on CrossPoint’s reading engine, so the core reading experience is solid.
AvesO3 firmware running on an Xteink pocket e-reader
AvesO3’s AO3 Library: fics with metadata squares, tags, chapter counts and update dates.

How to install AvesO3

via web flasher (unlocked X4 only)

AvesO3 runs on the Xteink X4 (X3 partial). The install is 3 steps via web flasher (unlocked X4 only), start to finish:

  1. 1

    Download firmware.bin from the AvesO3 releases page.

  2. 2

    Connect an unlocked X4 by USB-C and open xteink.dve.al.

  3. 3

    Flash the .bin. To revert: flash official firmware, or "Swap boot partition" at xteink.dve.al/debug.

First flash? The mechanics are the same across every fork. Compare the five flashing methods on the directory, or follow the step-by-step flash CrossPoint without panicking guide.

AvesO3 safety: locked units & reverting

AvesO3 is a high-risk flash. Settle two things before you touch the flasher: whether your Xteink shipped locked, and how you'd get back.

Locked devices & AvesO3

Requires an unlocked X4: flashing via the unlocker tool is untested, and X3 support is unverified. Single-maintainer and very new, with Issues disabled.

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

How to revert AvesO3

For AvesO3: To revert: flash official firmware, or use "Swap boot partition" at xteink.dve.al/debug.

On an unlocked Xteink you have three ways back:

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

On a locked unit there is no USB safety net. That is why locked devices stick to CrossPoint/CrossInk.

The one caveat: Very new, single-maintainer, Issues disabled. Requires an UNLOCKED device. Flashing via the unlocker tool is untested. X3 is unverified.

Owner kit

A light and a case after setup

X3 and X4 ship without a front light. A clip-on is the usual first add-on.

  • eReader Magnetic Reading Light

    eReader Magnetic Reading Light

    Official
    from $9.99
    Buy
  • X4 Pro Magnetic Case

    X4 Pro Magnetic Case

    Official
    $8.99
    Buy

Kit it on accessories .

Other Xteink firmware

Full directory →

Not sure AvesO3 is the right pick? Take the 30-second firmware chooser.

CrossPoint Reader

The main community firmware

The default: best all-round reader

Full guide

CrossInk

Typography + reading stats fork

Reading stats, Bionic Reading, glyph fixes

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

SUMI

Offline apps, dictionary & Lua plugins

Offline apps, dictionary, Lua plugins, emulator

Full guide

AvesO3 details verified August 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.