@robinsing, I've been followed this topic in order to completed the installation but i changed at starring the 9th of another computer where ubuntu and ubports was installed and follow these instructions to allowed and enabled the fastboot and unlock bootloader.

@rheomie , i'm a french user of this forum and i'm not sure my english words will be correct. I followed your instructions with a windows 11 computer; but at the 9th, I had pluged the device on another computer where ubuntu is installed. I had installed ubports installer with a snap app. The installation had been completed at a second try with the snap app cause the first attempt not respond, so i had relauched the ubports installed and then the installation has been finished and completed. [image: 1774556182375-1000004017.jpg] [image: 1774556196873-1000004016.jpg]

Had another try and this time mysteriously it worked out. I used v5.2228 for linux (from https://spflashtools.com/).

@oldbutndy said: or (2) on another brand, if you brick the main board during UT install, you effectively cannot get a part replacement in any country but France (if I understand that thread correctly). Replace France with EU, then it is correct. I know, as I bricked my FP and had it brought back to life by the said French company, which does hardware costomer service for FairPhone. I do not live in France, but inside EU. It has been a smooth experience, by the way, quite contrary to the bad reputation of FP customer service.

@Linus67 Freut mich, dass es geklappt hat