Still no luck? Then on to Plan B …
- Boot the phone into bootloader
- Install fp2-sibon-18.04.1-manual.zip from here the same way as you did before.
- See if it boots. It’s Fairphone Open OS, but that doesn’t matter for now.
- Boot the phone into bootloader
- Install FP2-gms-18.04.1-manual-switcher.zip from the same page the same way. That should switch the installation from Fairphone Open OS to Fairphone OS.
- See if it boots.