KOReader Software Support
Enable support for KOReader software to unlock advanced reading features, customization options, and better format compatibility.
Opensource the software
By opensourcing the software, the community can help unlock the full potential of the device far quicker.
Easy Built-in Font Switching
Add native font switching capability directly on the device, eliminating the need for external conversion tools or complex workarounds.
Display Battery percentage
Display battery percentage in Menu or status bar
Advanced ePub format
Add enhanced EPUB format support to ensure better display of chapters, formatting, and compatibility with popular ebook standards.
Built-in Frontlight for Dark Reading
Add a built-in frontlight to enable comfortable reading in the dark without requiring external accessories or lamps.
Left-Aligned Text Option for English Books
Provide an option for left-aligned text in English books instead of forced justification, which causes poor spacing and readability issues.
Improved Font Rendering and Anti-Aliasing
Enhance font rendering quality and anti-aliasing for non-Chinese text, as the current black-and-white display makes text appear blocky and pixelated.
Support Italics and bold
The x4 should be able to show simple standart text formatting
Sync with KOReader
While full KOReader may not be feasible, it would be helpful to sync reading progress with KOReader Sync Server (https://github.com/koreader/koreader-sync-server).
Improved word spacing and hyphenation for reading experience using alphabet
Give readers the option to choose left aligned text rather than justify; improve hyphenation algorithm OR respect css property to have no word breaks. Currently words written using the alphabet break in places that do not make sense. 可能可以参考一下国文obook是怎么做的 😉
Adding PDF files
Support additional file formats such as PDF to expand versatility for different reading materials.
BLE text file upload
I'm not sure if it's technically possible, but uploading a simple text file via BLE (Bluetooth) to the X4 would be perfect. I use it mainly for reading short text files, and since text files aren't large, they should be transferable over BLE. A companion smartphone app would likely be needed. The device is awesome btw.
Recognize two quick successive key presses
Right now the second keypress is lost
Add support for keyboard and simple word editor
I can imagine using this as a mini writer deck and that would be so cool!
Dictionary Support
Add feature to select word and search in dictionary
Comic Book support
Add support for common comic books file formats cbr and cbz.
Multi language support
It supports English Chinese Japanese for now. File of text were broken as like "ㅁㅁㅁㅁㅁ" I would like to use Korean. also included other languages. Thanks.
PDF Support
I would love it if PDF support was a thing on this ereader. That would be helpful, because I can't get epubs working, also side note, accidentally submitted a warning on a similar post, please disregard that warning
USB Mass Storage Access to Internal SD Card
When the XTEINK X4 is connected to a computer via USB-C, the device should expose its internal SD card as a standard USB mass-storage drive. This allows users to easily browse, copy, delete, and transfer files directly from Windows, macOS, or Linux without removing the card or relying on third-party tools. It simplifies content management, improves workflow efficiency, and aligns with common e-reader behavior found in competing devices.
Sync service/online personal library - "Send to XTEINK X4"
The Kindle ecosystem provides multiple ways to sync content to the device, including the "Send to Kindle" service which allows documents to be either uploaded via web or sent to the device via email. It would be amazing if there was some way to queue/send documents (TXT, ePUB, comics) for a future sync, and allow a document sync capability. XTEINK, if you're reading this, a feature like this could be an ongoing revenue stream! $25/year for an "online library" sync!
Put device on sleep
Short press of power button puts the device on sleep mode.
arabic (right to left)
adding support for reading arabic epub the problem is in right to left rendering