Ah- and Sidenote on "bricking"/restoring device: Lenovo offers an good "Software fix" software on their webiste that can restore your Lenovo device. You can install that, connect the tab via USB, give it the serial of your device, and it downloads the latest firmware and resets everything..the only thing tricky- as usual- I believe you might need fastboot mode at some point- which is POWER + VOLUME DOWN buttons at the same (USB disconnected) and then the lenovo enters fastboot mode and is ready a) to get out of this endless loops and b) receive the firmware. For me, it restored Android 11, the right one for UBports.

I apologies- got it working! I had two important obstacles, one related to the UBport: 1.Win10 somehow has a problem with talking to tablets and seems to require an extra driver, "MTK Driver"- I haven't verified this myself, but switched to Linux mint, where adb worked nicely and found the devices always. Anyway odd is that adb showed the device before I started Ubports, but later lost the connection somehow. 2.The TB-X306F could not get unlocked as described in the docu with "fastboot flashing unlock" but "Fastboot flashing unlock_critical". It seems, that command has changed somehow- my latest firmware before Ubports came was from 2024. No one talked about this parameter in the forums, but I found finally, that it seems to be an old syntax- may be Lenovo reused an old firmware, so that this came back. This changed command should be noted in the related documentation, not a problem of Ubport itself- it's just difficult to find, as there's no clear feedback that the unlocking failed partially, and Ubport itself only realizes it late in the process. I have now Ubuntu 20.04 on it. Impressed, that I got it working, but it was not trivial.

@karlk. Unfortunately that bricked my tablet. It has a smashed screen, so unbricking it is not going to be easy as I need to disconnect the battery... That is two TB-X606's that won't take a downgrade to Android 9 without bricking and it seems a common issue. I will persevere!

@floem7 said in Has video/media playback improved?: mkv plays without problems in default app a .mkv file is a container format, so the ability of UT mediaplayer to play these files depends on what is exactly the format of media tracks in the file. If the video track is "standard" mp4 or theora or h264 and sound track is mp3 or ogg/vorbis, there will be no problem. If for example the sound is amr or video is 'microsoft' mp4, it will probably not work. It's not obvious to check on the format of a .mkv file under Ubuntu Touch, it's much easier under a PC running Linux where you can easily install mkvinfo (ffplay or gst-discoverer-1.0 will also be able to interpret the files to some extent).

@Moktrull Yeah you need to download the SP Flash Tool and an Android 9 image for your device: https://drive.usercontent.google.com/download?id=18_vFVhQia5Zkedjy9Vz05x_wlNrN-sxe&export=download&authuser=0. This works for me (x606f). I had some issues using SP Flash Tool on Linux, so I recommend downloading the MTK drivers for Windows and flashing from Windows instead. Then flash that Android 9 image using SP Flash Tool. Unselect preload inside SP Flash Tool, then flash. After verifying in Settings that it’s Android 9, enter fastboot mode. Next, download the devel-flashable artifacts from here: https://gitlab.com/yassinrezai71/lenovo-x606/-/jobs/12500903564/artifacts/download Unzip it. After unzipping, flash the boot image: fastboot flash boot out/boot.img (or wherever the boot.img is located). Then format userdata: fastboot format:ext4 userdata After that, flash the Ubuntu image: fastboot flash system out/ubuntu.img Finally, reboot: fastboot reboot Wait until the device boots into Ubuntu Touch.

@Moktrull Yeah, sadly there's not much tablet choices for UT. I also like a tablet and for now, Lenovo M10 HD is my only option

@MrT10001 hi @MrT10001, I managed to install the system by doing it this way, based on the instructions from a post on the forum. This might help other people. Thanks for your help Video to enter Fastboot mode in order to unlock the bootloader: www.youtube.com/watch?v=cUOf0sF2RU4 Forum for commands to unlock the bootloader: forums.ubports.com/topic/10690/tb-x306f-3-gb-32-gb-android-11

@socialbox This seems to be a port that is in progress. Instructions on installing and helping out with testing are here.

Hi Tim, How much experience do you have? If this is your first time porting to a device, then I would suggest to begin using halium-13 first. I work on my first port (another Lenovo tablet), too, and it took me a long time to just get the kernel booting. The Andorid version begins to matter when the device boots so far that you can ssh into it. At that point you can worry about integrating halium 14. On the other hand, if you are experienced with porting then follow the advice to ask on the telegram channel how to base your port on halium 14 from the beginning. Kai

For anyone else wanting to run Linux on the Lenovo Tab M11. It seems the mentioned Lenovo support link contains wrong information. I can't download any image from their support site after registration on their platform, and the steps mentioned on the page seems to be for a desktop/laptop installation of Linux.

@kugiigi Brilliant thanks, I will take a look tonight

@W0nderW0lf Link to devices page. If it is not on there it is not supported. Some people create ports for devices, requiring a bit of searching, but a lot fizzle out due to various difficulties and are not supported.

@hlbkv Mine has dev-only channel as well. I haven't faced any issues so far. Perhaps the latest release will work on your device?

the .xapk contains the obb files ...so the extaction should contain the apk and obb you will need to place in the android obb folder manually

@messayisto Done.

@MrT10001 Hey, when I try to go to the Thread i get a message saying my access has been denied. I cannot for the life of me find an Android 9 ROM for this Tablet, could you please help me?