@magnusajber No, but there are things you can do.

1. Have a windows PC to hand with Lenovo Software Fix installed. This is the easiest way to return the tablet back to stock Android and the instructions in the fix tool are helpful and intuative.

2. The device has to be the 3Gb/32Gb or 4Gb/64Gb version. The 2Gb/32Gb version is stuck on Android 10 (Android 11 runs very poorly on it, UT runs a lot better). UT can be installed on it, but it involves doing other things to get Android 11 on it.

3. Fastboot is good, it means you can run the device through the UT installer again assuming you had Android 11 on the device.

4. On the installer tick all the boxes (wipe data etc).

5. Leave the device alone and let it do it's thing. Moving it while downloading UT and pushing it to the device may cause an issue due to a loose connection.

@miketatts If you downloaded it from here on the "how to install Ubuntu Touch", you shouldn't need to do anything as both these Android versions work.

There is a better explanation of the firmware here.

@miketatts No, firehose is the flashing protocol, think of it as the software protocol that communicates with the attached device and PC and pushes the ROM data onto the device.

Your device is not the T-Mobile or Verizon US models?

If not try reinstalling UT to the device from the bootloader (manually selecting it from the drop down box).

If that fails, reinstall Android and try again.

For info, just installed it on OP3...

1. Made sure the device was on Oxygen OS 9.0.6.
2. unlocked the bootloader
3. Booted to fastboot - then booted TWRP 3.7.0_9
4. Formatted DATA
5. Wiped Cache, Dalvik/Cache, Storage and System
6. Rebooted to Bootloader (fastboot mode)
7. Used Installer 0.11.2 to test and started the install - device got picked up, no need to select
8. Left "wipe data" unticked
9. Followed instructions and UT installed as expected (Xenial).

@stevetheobscure Updates are fine, it won't automatically update to 24.04 - you get prompted for that so don't install that one..

@Linus67 is it already running Android 11? If not and you are using Windows, the Lenovo Software fix tool is easier...

@stevetheobscure Tips:
Follow this and be patient, very patient...

First off, run it through the installer and install Xenial or Focal. If it boots into the OS, great, don't power off and leave it charged.

If it hangs though, at the Lenovo splash screen, this is the patient part....Follow these steps....

1. Power off.
2. Boot to recovery
3. In recovery Format data and cache, Mount the system and reboot to recovery.
4. In recovery now mount the system and reboot to recovery - do this at least eight times on the final time reboot to the bootloader.
5. Connect to the PC and with command prompt open run fastboot continue, leave it for 20 seconds, if no boot, power off and boot to fastboot and repeat this step four times.
6. Still no boot after step 5, boot to fastboot and run the command fastboot reboot. Do this at least four times, but by now, it should boot.
7. if the above steps fail, leave it for an hour and repeat.

It took a while for me to work this out, but it has worked every time on these tablets, I was just very patient.

@hunter_tor To get the 3T working with UT, it is Xenial only (16.04), you have to ensure the data partition is EXT4. Use the installer version 0.10.0. Download this version of TWRP and boot it from fastboot - use the command: fastboot boot (location of your TWRP file)

Once in TWRP format date to EXT4, then wipe SYSTEM, CACHE and the others . Reboot to the bootloader and do the same again, but it is not necessary to wipe the system etc, just format the DATA again to EXT4.

Reboot to the bootloader and fire up the UT installer and connect the device and manually select it from the drop down box.

Leave the "wipe data" box unticked and follow the instructions on the installer. Let it do it's thing. Once it is at the screen in your image, leave the device, it can take up to 15 minutes to install.

The OP3 and 3T are very similar, TWRP for 3 and 3T is the same.

Ensure you are on OxygenOS (9.0.6) before starting the UT install.

The two main points of a failed install I have found for the device is using the latest UT installer, use 0.10.0 instead and the incorrect formatting of the data partition to EXT4.

Also as @moem pointed out, the OP3T is old and Xenial is now unsupported... (It still works though).

@stevetheobscure The TB-X605F and X is functional on 16.04. On 20.04 there are things not working, mainly the cameras. On 24.04 it is not working (yet?).

This tablet can be a nightmare to boot, but with patience I have got there on all of mine. For some reason, some will boot and reboot absolutely fine. Others will just hang at the Lenovo splash screen and take some techniques to get booting, that are not software tweaks..

@egregiousecan won't boot at all? Can you boot to the bootloader (fastboot)?

@Persinto The specs for the device are old. 2Gb of RAM these days won't give you the best experience and the dated kernel would require a lot of work to bring it up to spec. Even Android runs poorly on 2Gb of RAM from Android 9/10 forward. I am not saying to not have a go at porting to the device, but it will be a hard road.

@danfro Many moons ago I spoke to the porter. He was hoping someone would pick up the port as he couldn't get the sound to work properly and unfortunately it then went the way of the Nexus 4, 5 and others.

@computersalat You miss the point, there was a port for it, but it was not complete, i.e. no sound and the porter couldn't resolve it for their reasons. I have a few devices that have UT ported to them but the port has failed, usually no sound (a bit of a necessity with a communications device), no modem, wifi and so on. Porting devices fail for many reasons, one of the main reasons is proprietary drivers (that require reverse engineering) and kernel issues which can take a lot of dedication to sort out...

@computersalat No, as @vlad-nirky pointed out. There is a port for Xenial (16.04), but there is no sound and has not been worked on for a long time. If you want a more up to date version of Android, check out /e/OS.

@E-Z-Tux said:

The Lenovo fix tool needs the tablet to be turned on

The Software tool requires the tablet to be switched off when recovering using serial number.

@jrgood78 I have had this on other devices after an INCELL screen replacement, more recently a OP 6T. The screen works in Android but not on UT. You could try going back to Android, making sure everything works, then reinstalling UT and see if the screen is picked up.

BTW, INCELL is a type of screen that is cheaper and more hard wearing than more expensive OLED screens. They are not as vibrant colour wise than OLED screens and if the fingerprint reader is under the screen, that usually won't work with n INCELL screen replacement.

@KJU Just to point out, Ubuntu Touch is the name of the mobile operating system that you have installed and given good account.

UBPorts is the charitable foundation that helps develop and finance Ubuntu Touch through donations and sponsorship.

@ResuWen Check the end of this thread on XDA-Developers forum. There is a media fire link that works.

@E-Z-Tux You don't need to power up the device. You log in to the software fix tool with a Lenovo account or a Google account. Select Tablets. Select use the serial number to recover. Enter the serial number of the device. Download the ROM. Ensure the tablet is powered off. Follow the onscreen instructions to recover the device, which involves holding volume up and volume down and plugging in the USB cable plugged into the PC when told to do so. Then leave the device alone till it reboots.

@E-Z-Tux You don't need to have USB debugging enabled. If you have the serial number of the device (sticker on back of tablet or on box) you can recover to Android.