@kari congratulation! it is lucky of you. I have gave up for it, I changed to install postmaketOS instead of UT,at least I have a Linux server, but unfortunately, the battery is broken of postmaketOS for FP. It was difficult for me. crying...

does anyone know where I can download the old version firmware of UT?

@ikoz yes,already

@MrT10001 I have refer to it before, resized and expand the super partition. it is UT problem, I can execute the partition operation like 'delete-logical-partition' in Android and /e/OS system, but after flash UT firmware image, partition not working.

@MrT10001 I already tried this command before, actually I can install Android 11/12/13 and /e/OS 11/12/13 and PostMarkOS, except Ubuntu Touch, the dynamic partition was deleted by me before, I don't know how to revert it that is the problem. it can install UT at the first time, after I resize and expand the size for 'super', that want to install back UT, it was failed till now, still can not find out the good way for fixing it.

@MrT10001 Tried any way, still can not work, I want to give up for it, if anyone interest in this phone, I can sell to him.

@MrT10001 I have followed below guidance install Android 11, I really have no idea which step have problem, why can not install UT still show the same error.

https://support.fairphone.com/hc/en-us/articles/18896094650513-How-to-manually-install-Android-on-your-Fairphone

@MrT10001 yes, I already installed the Android 11 before tried UT installation. install UT failed and I go back install Android 11 again then tried install UT again, again and again failed.

use command: .\fastboot.exe getvar all show the partition already there

use delete command,can not delete it and resize it.

@MrT10001 yes, I knew it. I already have this command on my step, and it also works and reboot as your screen capture, but it still have error message when use the partition command,can not edit the partition.