CrossPoint vs Microreader: Which Xteink Firmware

Flash CrossPoint on an Xteink X3 or X4 unless a fork below already matches how you read. CrossPoint vs Microreader is the usual split: a full reading environment versus an X4 that only reads files from the SD card. CrossInk, Vcodex, and INX are CrossPoint forks. Papyrix is the FB2 and Markdown outlier. Stay on stock if you need Bluetooth.

This page picks the build. The CrossPoint flash guide walks the install.

Flash CrossPoint on your X3 or X4  or check the lock in two minutes first.

Which Xteink Builds Are Forks, and Which Are Not?

CrossInk, Vcodex, INX, AvesO3, and several others are forks of CrossPoint, so “which is best” sounds like four equal products when it is one base plus variations. Microreader and Papyrix are the separate codebases.

r/XTEINK advice contradicts itself because people answer for their own habits. Plain-EPUB “just work” readers push Microreader. Fonts-and-stats readers push CrossInk. Both can be right for themselves. A locked unit does not cancel the comparison. It only changes the install path.

How Do These Firmwares Compare to Stock?

Every firmware in this guide replaces what your X4 (or X3) shipped with. Stock reads books, but owners hit the same day-one gaps: a home screen that refreshes the whole book list, basic typography, clunky file transfer, and EPUBs that “open but look wrong.” See the stock-firmware complaints owners actually raise for the full list.

For most owners, custom firmware is the upgrade. The remaining decision is which build matches how you read.

The mainstream custom builds (CrossPoint, CrossInk, Vcodex, INX, Microreader, Papyrix) drop Bluetooth. Only stock keeps it among the common picks. Stay on stock if a Bluetooth page-turner matters. A couple of niche forks (CrumBLE and CrossPoint-BLE) add BLE HID page-turning only, not Bluetooth audio.

CrossPoint: Best for Most People

GitHub: crosspoint-reader/crosspoint-reader, X3 + X4. Current stable: 1.5.0 (Aug 2026).

CrossPoint is what most people mean by “community firmware,” and it is the default for the best Xteink X4 firmware question. It is open source and actively maintained, and it replaces stock’s main frustrations in one install.

What it adds over stock:

• EPUB Optimizer. Preprocesses EPUB files before rendering, fixing most “opens but looks wrong” books without Calibre. If a book still misbehaves, CrossPoint’s XTC format is the cleanest fallback short of Calibre.
• Wireless book transfer. Web upload, WebDAV, Calibre wireless, plus the free CrossPoint Sync app (iOS + Android) for Wi-Fi transfer and web-article clipping.
• Fonts, themes, dark mode. Actual control over how your books look.
• Sunlight Fading Fix. A Display setting that counters the screen washing out in direct sun, documented for white X4 units.
• Button remapping. Assign font size, bold, rotation, or bionic reading to any physical button.
• KOReader sync. Connects to your existing KOReader library for reading-position sync across devices. A “smart” KOReader progress sync improvement merged after 1.4.1 (July 15, 2026) makes that handoff more reliable.
• Better home screen. Last-opened book shown immediately, not a refreshing list.
• SD-card updates. Since v1.3.0 you can update from an SD card without re-flashing over USB. The OEM bootloader will also accept any full update.bin from SD on a locked device, so the SD install path does not depend on which firmware is already on the unit.

Risk. Time in settings, plus the Bluetooth drop every mainstream custom build shares. On a locked unit you lose USB-only extras, not the firmware.

Link. The install guide has the web-flasher, SD-card, and locked-device paths.

Choose CrossPoint if: you want the complete, well-supported reader and will spend a few minutes in settings.

CrossInk: CrossPoint With Better Typography

GitHub: uxjulia/CrossInk. X3 + X4. Latest release: v1.4.0.1 (July 29, 2026).

CrossInk is a personal fork of CrossPoint for readers who already like the base and want cleaner type and reading stats. It keeps everything CrossPoint does, then layers:

• Better font rendering. Improved glyph handling; a recent fix resolved rendering problems in books that use symbolic text or black-bar redactions.
• Reading stats. Session time, page counts, books read, and pages-per-minute, presented cleanly without taking over the interface.
• Bionic Reading, guide dots, improved paragraph indents.

CrossInk is not Latin-only. CrossPoint and CrossInk both support Chinese/CJK, plus Cyrillic, Greek, and Hangul, through the same SD-card .cpfont system and its Font Builder tool.

Risk. CrossInk’s only documented install path is the USB web flasher (no SD-card route), so it needs a USB-unlocked unit. It is not a locked-device option.

Link. In the web flasher, select Custom .bin and pick the CrossInk release from its GitHub page. Switching back to CrossPoint means flashing the other .bin over it. The flash guide is the USB walkthrough.

Choose CrossInk if: you’ve tried CrossPoint and want cleaner typography and reading stats, or you care about the specific rendering fixes CrossInk has shipped.

Vcodex: CrossPoint With Dictionary, Flashcards, and Streaks

GitHub: franssjz/cpr-vcodex. A personal fork of CrossPoint that ships a complete standalone, flashable firmware image, not a theme tweak, aimed at people who read to learn.

What it adds. Vcodex keeps the CrossPoint base, including OTA update checking (Settings > System OTA update check) and SD-card updating, then adds StarDict dictionary support, offline Flashcards from CSV decks, reading streaks, and a Reading Heatmap.

Risk. One developer’s fork that tracks the base closely. Validated on the X4; X3 compatibility is community-reported rather than personally tested. Because it ships a full flashable .bin, you can install it from the SD card on a locked device the same way as CrossPoint. On an unlocked device, the dev documents a one-click Web-Serial install via Chrome or Edge.

Link. Vcodex on GitHub. On-device it keeps a firmware picker at Settings > System > SD Card Firmware Update that lists and flashes any .bin on the card.

Choose Vcodex if: you want CrossPoint plus a dictionary, flashcards, streaks, and a reading heatmap, and you’re fine with one developer’s fork.

INX: CrossPoint With the Deepest Customization

GitHub: obijuankenobiii/inx. X4 (X3 support was added in the 1.0.14 release). Latest release: 1.0.16 (July 9, 2026).

INX is another CrossPoint fork for owners who have outgrown CrossPoint’s menus and want native image rendering or tabbed library browsing. Tabbed navigation (Recent, Library, Settings, File Transfer, Statistics) replaces CrossPoint’s menu tree.

What it adds over the CrossPoint base:

• Native image rendering. JPEG, PNG, and BMP images render natively, with a choice of 1-bit or fuller 2-bit image quality.
• Deeper EPUB tools. Annotations and highlights, go-to-percent, per-book settings and presets, and the same KOReader sync as CrossPoint.
• More sleep-screen options. Recent-book covers, transparent covers, or date/time screens, in addition to CrossPoint’s custom sleep images.

Risk. The extra UI costs time. A June 2026 review that put INX through its paces called it “feature-rich,” but found the settings “deeply nested, poorly organized,” saying it “feels cluttered and overcomplicated compared to the streamlined menus” of CrossPoint. That is the honest read: more capable in a few specific areas, harder to set up. There is no documented SD-card install path, so INX needs a USB-unlocked unit, same as CrossInk.

Link. INX does not use the shared crosspointreader.com flasher. Download firmware.bin from its GitHub releases page, then flash it from xteink.dve.al’s OTA fast-flash controls. The same site (or its debug page, to swap boot partitions) flashes you back to official firmware.

Choose INX if: you’ve outgrown CrossPoint’s settings and specifically want its native image rendering or tabbed library browsing, and you don’t mind spending real time in a denser menu system.

Microreader: SD Card and Nothing Else

Reddit: “Microreader 2.0 (for Xteink X4)”, 491 upvotes

Microreader is the X4 reading appliance: SD card in, read, nothing to configure. X4-only. There is no X3 build. It is written from scratch. No web interface, no settings rabbit hole, no wireless transfer. Also the right pick if you’re handing the device to someone who should never have to make a firmware decision.

What it adds. A short path from card to page. What it leaves out on purpose: wireless transfer, KOReader sync, font configuration beyond basics, button remapping. Transfers mean pulling the microSD and copying over USB, so keep a card reader handy.

Risk. X3 owners are out. You give up every CrossPoint-family convenience, including wireless transfer and the usual recovery extras. Confirm you want that appliance, not a smaller CrossPoint.

Link. Microreader 2.0 on r/XTEINK. The firmware page has the project home.

Choose Microreader if: you have an X4 and want the device to behave like a reading appliance.

Papyrix: For FB2, Markdown, and Extra Scripts

GitHub: bigbag/papyrix-reader. For readers who specifically need FB2 or Markdown, and who already know the SD-card recovery path.

What it adds. Papyrix is lightweight and supports formats the others don’t prioritize (FB2, Markdown, and TXT, plus themes). It also handles some right-to-left and extra-script content better than the stock reader. Current release: v1.26.0 (July 14, 2026), with a Recent Books list, Sleep “Keep Page” mode, and atomic SD-card writes.

Risk. No OTA. First-flash owners should not start here. Keep a FAT32 recovery card with a known-good CrossPoint image before you try it.

Link. Papyrix on GitHub and the firmware page.

Choose Papyrix if: you specifically need FB2 or Markdown support, you’re comfortable losing OTA updates, and you already know how to use the SD-card recovery path.

Other Forks Worth Knowing About

Most of these are niche, single-purpose CrossPoint forks. You don’t need them. They explain why the firmware list looks crowded.

If your goal is “read books well,” none of these change the recommendation. The GitHub links are in the Sources below.

How Do You Pick Xteink Firmware in Five Minutes?

You don’t need to weigh all six projects. Answer the questions in order and stop at the first “yes.”

Steps:

1. Confirm it can be flashed. Run the USB test in the locked-or-unlocked guide. If the unit is locked, CrossPoint and Vcodex still install from an SD update.bin. The flash guide has that path.
2. Want capability? If you want the most complete, best-supported reader and don’t mind a few minutes in settings, flash CrossPoint and stop here. This is the right answer for most people.
3. Want better typography and stats? Already on CrossPoint and want cleaner fonts and reading stats? Flash CrossInk over it. Unlocked units only.
4. Want a dictionary, flashcards, and streaks? Flash Vcodex. Locked-friendly, because it ships a full .bin.
5. Want the deepest customization and don’t mind digging through menus? Flash INX for its native image rendering and tabbed library browsing. Unlocked units only.
6. Want a no-settings appliance? On an X4 and happy with SD card in, read, nothing to configure? Flash Microreader (X4 only).
7. Read mostly FB2 or Markdown? If you’re comfortable with SD-card recovery, flash Papyrix. It can’t recover over the air, so keep a known-good FAT32 recovery card first.

Switching later means flashing a different build over the current one. Start the CrossPoint-family web path at crosspointreader.com in Chrome or Edge. Cables, recovery, and failed flashes live in the install guide.

The Bottom Line: Which Xteink Firmware Should You Flash?

CrossPoint if you want capability. Microreader if you want simplicity on an X4. Everything else is a refinement of one of those two instincts.

• Default to CrossPoint. Most complete, most maintained (stable 1.5.0), and the base every fork builds on.
• Branch only with a reason. CrossInk for typography and stats, Vcodex for study tools, INX for the deepest customization, Microreader for a no-config X4 appliance, Papyrix for FB2/Markdown. Keep a FAT32 recovery card for any of them.
• Check the lock first. Confirm the device can be flashed, or that you will use the SD path.

Flash CrossPoint on your X3 or X4  or run the two-minute lock check first. Still choosing a device? The X3 vs X4 guide will tell you which one this firmware goes onto.

Quick Answers on Xteink Firmware

CrossPoint vs Microreader: which should I pick?

CrossPoint if you want capability (wireless transfer, fonts, the EPUB Optimizer, OTA recovery); Microreader if you want a no-config reading appliance and you're on an X4. Microreader is X4-only (there is no X3 build), so if you're on an X3 the choice is already made for you.

Can I switch back, or move between firmwares later?

Yes for the CrossPoint family: flashing CrossInk, Vcodex, or back to CrossPoint just means flashing the other build over the current one in the web flasher. INX switches the same way in principle, but through its own flasher at xteink.dve.al rather than crosspointreader.com. The exception is Papyrix: it doesn't support OTA, so your only route back is the SD-card method. Keep a known-good CrossPoint image on a FAT32 card before you experiment.

My laptop won't detect the device: is it locked?

Often not. On the X3, a 2-pin pogo cable is charge-only, so the flasher never sees the device; swap to the 4-pin data cable first. If a real USB lock is in place, you can still install the CrossPoint-family builds (CrossPoint and Vcodex) from the SD card via the update.bin method; only USB flashing and the USB-only full-flash backup are off the table. Run the USB test in the locked-or-unlocked guide to tell a lock from a charge-only cable.

Does CrossInk lag behind CrossPoint?

It can. CrossInk is one developer's fork of CrossPoint, so when CrossPoint ships a major release it may be a few days or weeks before CrossInk catches up. If you want the newest base-firmware fixes the day they land, stay on CrossPoint; if you want the typography and reading stats, the small delay is usually worth it.

Sources

• AvesO3 fork
• CrossPet fork
• Chess/PGN fork