I just tried to install the e/OS on my Fairphone 4, but unfortunately this caused the phone to stay in a Fastboot Mode loop.
I followed the instructions from https://doc.e.foundation/devices/FP4/install until the last step where I had to lock the bootloader again. Until then everything worked. However, the very last step fastboot flashing lock caused the problem. My phone said after this step that it is corrupt. Since then the phone is stuck in the FastBoot Mode. No matter which option I choose the phone reboots to FastBoot Mode, even Power off results in a restart.
When the phone is not connect via USB-C to the computer Power off works.
Unlocking the bootloader fastboot flashing unlock and fastboot flashing unlock_critical didn’t change anything.
However, there is not a real solution given. Is there any hope that this can be fixed? Can reinstalling Fairphone OS fix this? Does anyone has experience with this? Does Fairphone offer support? What is the correct way to contact them?
Yes at the beginning of the whole procedure, but still with the original Fairphone OS. After the installation of e/OS I didn’t do anything with e/OS because I just followed the instruction on the manual page, which told me to lock the bootloader.
I can unlock the bootloader, but the phone still does not boot normally. I could change the slot to b
user@computer IMG-e-0 % fastboot getvar current-slot
Finished. Total time: 0.004s
user@computer IMG-e-0 % fastboot --set-active=b
Setting current slot to 'b' OKAY [ 0.054s]
Finished. Total time: 0.056s
Then I after trying to start, I got the dialog that my boot loader is unlocked and after that I ended up in the FastBoot Mode again. So I saw one more dialog but I am still stuck.
This means, when I run all the commands from the manual again, but don’t try to lock the bootloader afterwards there is a chance that the phone will boot again. Or when I install the original Fairphone OS I can revert everything?
Ok it seems like it is working now. thank you very much for your support.
I realised that during the installation there was the following message ******** Did you mean to fastboot format this ext4 partition?.
The message embedded with context:
Sending 'core_nhlos_b' (111772 KB) OKAY [ 2.407s]
Writing 'core_nhlos_b' OKAY [ 0.526s]
Finished. Total time: 2.941s
******** Did you mean to fastboot format this ext4 partition?
Erasing 'userdata' OKAY [ 0.179s]
Finished. Total time: 0.185s
The same message also appeared the first time but I didn’t notice that. I don’t know whether this is normal or not. However, this time (without locking the bootloader) the phone boots and works as expected.