So hey LikeBookers! Here are links to download firmware files of SW updates for the Boyue LikeBook Plus T80s.

Instructions to install update:
1. Download the zip file from the link.
2. Rename it as 'update.zip' and paste it in the parent directory of your device.
3. Then go to 'Settings' > 'System Updates' > 'From local memory'.
4. Wait for the device to reboot.
5. Voila!

Note:
1. The provided updates are specifically developed and intended for the T80s only. Users of the Icarus Illumina XL HD should note that I shall take no responsibility if updating their devices with the T80s update causes any issues. However, users of the Icarus Illumina XL HD who have experimented with the T80s on their devices have got through without any issues.
2. Issues if any can be reported in reply to this thread. I shall forward the same to the concerned dev team.

Download Links:
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v1.0.1-2017111118
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v1.0.2-2018010215
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v2.0.0-2018052616

Have fun!
So here are two (and probably the only) great Launchers developed specifically for e-ink displays.

Downloads:
> ReLaunchX
> ReLaunch

ReLaunchX Sources:
> GitHub:https://github.com/Leszek111/ReLaunchX
> MobileRead: https://www.mobileread.com/forums/sh...d.php?t=284418

ReLaunch Sources:
> GitHub: https://github.com/yiselieren/ReLaunch
> XDA: https://forum.xda-developers.com/nook-touch/general/relaunch-best-nst-launcher-version-1-4-t3060782
> 4PDA: https://4pda.ru/forum/index.php?showtopic=270909

Finding APK files for the above two launchers was a bit of a tough job due to dated uploads and broken links. I have hence uploaded the APKs to my own cloud drive and mirrored the same here for easy download. I have provided necessary source links for easy identification of respective projects.

I am in no manner responsible for the development of these launcher apps. I am only sharing these downloads out of community needs. I do not take responsibility for issues caused by installing these apps.

Note: Both, ReLaunch and ReLaunchX were initially developed for the Nook Simple Touch and Onyx Book. The former was developed by a Russian developer yiselieren and later abandoned due to reasons unknown. The latter was then created as a fork of the former by the developer Leszek111 and is still in active development. Both launchers are powerful tools, if well optimized, can provide a great user experience.

P.s., I can help out to the extent of my personal usage of the launchers. Cheers!
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Do you know whether the firmware updates supports the same languages as the the orginal firmware ? I use norwegian.
Hey, yep. Nothing changed with the language database. Just a few translation updates I presume.
Thanks.

Just updated my Illumina XL to V1.0.2-* with no ill effects. Startup screen now reads Likebook instead of Illumina.
@fernsruben, I believe I heard a rumor from you that a new firmware version might be dropping around the 1st of April, have you heard any news on this front?
My Likebook is on v1.0.2-2018010215 firmware. I'm not sure when this happened since I had it on wifi unintentionally. For the past couple days the bluetooth remote doesn't work well. Occasionally it will work but most of the time not, although sometimes the page turns are stored and show up when I touch the screen causing me to have to page back.

Anyway, I decided to go back to the previous firmware, downloaded the file in the first post in this thread and get a message that it's "not a valid update package". Is it not possible to revert? I did rename the file update.zip. Has anyone else had problems with bluetooth with the v1.0.2-2018010215 firmware. It's not the remote because I have two and neither works correctly. I did power off and back on, turn bluetooth off and on. Thanks for any suggestions.