Hi guys,
In order to install Fairphone 3 and 3+ • Ubuntu Touch • Linux Phone , after a few failed attempts, I realised I had not only to start from FairphoneOS, but specificallywith Fairphone OS version of Android 10. SO I got the right version from https://support.fairphone.com/hc/en-us/articles/18896094650513-How-to-manually-install-Android-on-your-Fairphone and launched the install.
The script went well, and after the phone reboot and the confirmation to leave the bootloader open, I get an infinite (more than 30 mn at least) animation with 4 moving dots.
If I force the shutdown and got to recovery mode, I get the lying Android robot with its belly open.
Same if I relaunch the installation script and go to recovery mode before the 4-dots animation.
Anyone know what I messed up?
On Recovery Mode: If the problem is that you don’t know how to proceed beyond the lying Android (with “No command” written?) – you need to briefly hold POWER and briefly press the VOLUME UP button to proceed into Recovery Mode.
I just noticed you mentioned the open bootloader, so THIS part is probably obsolete
Downgrading to a lower version of Fairphone OS runs the risk of hard-bricking the device. Google introduced an “anti-rollback protection” into Android some years ago, resulting in a hard-bricked device if the “security patch level” of the version you are installing is lower than before, see the “Warning” in the “Re-lock the bootloader (optional)” section here: https://support.fairphone.com/hc/en-us/articles/10492476238865-How-to-unlock-and-re-lock-the-bootloader
Yes, the bootloader has been unlocked on this phone for years.
So at least this is out of the equation:
If you install an OS with an older security patch level than your previous OS, locking the bootloader might brick your device.
However, it indeed is a downgrade. In the last couple of days, this phone went
- from latest LineageOS (working)
- to latest FairphoneOS (working)
- to 1st Ubuntu Touch install (not working: got a bootloop)
- to latest FairphoneOS (working)
- to 2nd Ubuntu Touch install (not working: remained on the Fairphone logo forever. Restarting in recovery mode did start the UBports [Ubuntu Touch’s] Recovery, though. In this mode, I just asked for a wipe, and rebooted, but the Fairphone logo remained for a while, then it rebooted, Fairphone logo again, and then the bootloader menu appeared. Asking it to start came back to the bootloader. And asking it to start to the recovery mode… went back to the bootloader menu as well)
- to Fairphone OS version of Android 10’s install, and here we are with this forever 4-dots animation and when I reboot to bootloader, and asking to go to recover mode, I had this open-belly Android logo - and yes “no command” -
- but something new : now, after forcing to shutdown during the 4 dots animation, I get the the bootloader, and whatever I do (start or recovery mode) brings me back to the bootloader
Well, it turns out that dumb me was intalling FP3-6.A.035.5-gms-921df471-user-fastbootimage (Android 12) instead of FP3-REL-Q-3.A.0136-.gms-7c69ec7e-user-fastboot-factory (Android 10).
So, for the record, I installed Fairphone OS version of Android 10, then installed ubuntu Touch, and all went well!
TY for your help, @urs_lesse .
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