How to root the FP5 and OTA update - at your own risk

[yvmuell]

I moved your post to keep the information at one place.

Can't update to Android 14, even on stock firmware

i update to A14 with unlocked bootloader without problem… BTW: don’t have TWRP installed in Magisk Uninstall/RestoreImage (and don’t uninstall Magisk app) run System/Update after update finished, DON’T reboot, but run “adb shell” and: getprop ro.boot.slot_suffix # this show me actual/booted slot A or B su - dd if=/dev/block/by-name/boot_X of=/sdcard/boot_UT20-041_stock.dd.img # where X is other A/B then booted slot in Magisk Install/Patch *.dd.img and pull patched img to computer …

[Wurzerl]

I tried the update as described by k3dar. Works fine, but instead Step 3 (because after Magisk was uninstalled, root access is denied), I copied the boot.img from the factory.zip in the mentioned link, posted by _tmp above, and patched this with magisk.
Thank you all for the information.

[k3dAR]

After step 1 don’t reboot, root is still avaiable ;⁠-⁠)

[Wurzerl]

Assuming it should be, but trying to copy with dd, it tells me no files found, permission denied.

So I tried the workaround with the boot.img from the zip.

[k3dAR]

Before dd you sure switch to root using “su -” ?

[Wurzerl]

Yes, here the first try, after these steps, without any update is impossible on my phone:
Disabling firewall AFWall+
Disabling Blockada
Uninstall Magisk (Restore Image)
Download and Install the Upgrade (without Reboot)

These steps are just necessary by upgrading from A13 to A14:
Connect the FP5 with an USB cable to the PC
Starting ADB

FP5:/ $ getprop ro.boot.slot_suffix #
_a
FP5:/ $ su -
/system/bin/sh: su: inaccessible or not found
127|FP5:/ $ su -dd if=/dev/block/by-name/boot_b of=/sdcard/boot_ut20-041_stock.dd.img
/system/bin/sh: su: inaccessible or not found
127|FP5:/ $ dd if=/dev/block/by-name/boot_b of=/sdcard/boot_ut20-041_stock.dd.img
dd: /dev/block/by-name/boot_b: Permission denied

I was pretty careful to not restart the phone after uninstalling Magisk. Maybe it depends on my version of adb, on windows, afwall+ or a data cable. But it´s not a big thing, it´s just needs time to download the zip file.

If anybody else come to this point, there´s a solution.

[Wurzerl]

Maybe I found out the reason:
Before uninstalling Magisk:
Connect the phone to the PC with an USB Cable
Open Magisk - Superuser
Check, if
[SharedUID] Shell
has SU rights

Don´t know, if I got a message the first time connecting the phone to the PC. Now adb accept the su and dd command.

[oli.sax]

Hello!
Does any of you already extracted the stock boot.img from the (fresh new) Android 14 release?

I don’t have my microSD card here so I cannot extract it with TWRP.
And on the download page of Fairphone I see only Android 13 full factory images…

[Wurzerl]

You can download A14 from this link and extract the boot.img: https://fairphone-android-builds.ams3.digitaloceanspaces.com/FP5/A14/FP5-UT20-factory.zip