It’s not much use to install it, but temporarily booting it with the fastboot command given at twrp.me and by @Erekoze works perfectly fine.
As the second /e/ build for the Fairphone 3 is out, I took the opportunity to check whether my theoretical backup and restore procedure with an unlocked bootloader works with /e/ in practice, too. (It did work with the stock Fairphone OS, but better safe than sorry.)
Made sure I kept the install file for the initial 20200428 build.
Made a copy of the whole Internal Storage (because ).
Made a TWRP backup of my installation of the 20200428 build, including the data partition.
Updated /e/ successf…
It is working for some people
I currently use TWRP for backing up my /e/ devices, when of upgrading from one /e/ build to the next. I usually start with a ‘dirty flash’ - installing the new ROM without wiping the existing data used by the old ROM. If that doesn’t work, I wipe the data partition and do a clean install, then restore my apps and data from the TWRP backup. This works well, and has rescued me a couple of times when I flashed my device into a non-functioning state
And you might find a lot more on backups via the forum search.
2 Likes