@luksus

Ok, sorry, I needed some time to process and remember... I did NOT check wipe in the installer because I thought there is no data anyway etc. (not knowing about the connection between decryption and wiping). Given the conditions above (starting from factory reset/new installation), it is worth another try then?

@luksus

Hi, thank you for the reply. It is a Fairphone 3 (not 3+), see my first post.

The first time it had Android 10 and the time(s) I tried after that I put Android 10 back on (from the link you provide in the UBports installer initial check and the offline instructions from Fairphone since I was stuck in fastboot mode once).

But the same error appeared each time.

I bought the phone second hand (only to finally get ubuntu touch ;-)) but it was hardly used and I assume that it was on factory reset. At least I had to start there from scratch (I skipped everything just to unlock the bootloader, dev mode, USB debugging). But I also read now that encryption is enabled by default in Android 10 so I should have turned it off? I am not familiar with this type of encryption. Is it a hardware thing or shouldn't it be "wiped" latest after I reinstalled Android 10 (the one you link in UBports installer is also encrypted by default?)?

@stanwood

Ok, thank you, I will try soonish. I first asked in the telegram group and they referred me to this forum.

adb and fastboot was installed correctly and since I had no problem entering UBports recovery mode or flashing /e/, there should be access to the device. I thought I read that the installer is for Ubuntu 18.04+ and that I can depart from Android 10 but maybe it's worth trying from 20.04 and Android 9 then. I will check, thanks.

Good to have the live stick anyway for upgrading my laptop ;-), was next on the list.

Hi,

I am new to smartphones, tested the installer (version 0.8.9 on Ubuntu 18.04) with the Fairphone 3 (not 3+) and I got this error:

Error: adb:preparesystemimage: Error: {"error":{"code":1,"cmd":"adb -P 5037 shell mkdir -p /cache/recovery"},"stderr":"mkdir: '/cache/recovery': Required key not available"}

I reported the bug here: https://github.com/ubports/ubports-installer/issues/2155

I followed all instructions. Bootloader was unlocked, developer mode enabled, USB on debugging and file transfer. If I ignore the error, the installer shows success but the phone stays in Ubport Recovery and I can not boot Ubuntu Touch at all. I can reproduce the error, just installed /e/ now to have a break (since my old phone is broken).

I am interested but probably rather user than developer. But I switched to smartphones very late (due to all this OS mess) and had one year sailfish OS now. I chose FP3 to get ubuntu touch and really, really want it to work...

If you have any ideas, please let me know.