Unable to revert to stock FPOS

Help Fairphone 4
1

Hello

I would like to revert my FP4 to FPOS from iodeOS, to use a banking app.

I used the official manual and script with Suse Tumbleweed, but it fails with the following error message

*** Fairphone 4 flashing script ***

INFO: The procedure will start soon. Please wait…
INFO: The package type is “user-factory”
INFO: You are using a Linux distribution.

INFO: Validating the integrity of the package.
This might take a while. Please wait…
INFO: Validation complete.
WARNING: Flashing this image wipes all user data and settings on the phone.
It will also remove the Google factory reset protection.
Are you sure you want to continue?
Type “Yes” (case sensitive) and press enter to continue: Yes
INFO: Looking for connected device(s)…
INFO: One Fairphone 4 found (serial number: ********).
ERROR: Found device in unknown mode: getvar:is-userspace FAILED (remote: 'unkno
wn command’)
Finished. Total time: 0.000s
ERROR: Aborting now (press Enter to terminate).

I tried several time, I tried to do it quickly after entering fastboot mode since I saw it proposed on another topic, without success.

I could not post in the other topic on the subject since it is closed.

Thank you in advance for any help.

2

check bootloader status by copy this command, and paste it into the terminal and press enter :

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3

Hello piero-e, thank you for your answer.

Here are the results

fastboot oem device-info

(bootloader) Verity mode: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false

fastboot flashing get_unlock_ability

(bootloader) get_unlock_ability: 1
OKAY [ 0.000s]
Finished. Total time: 0.001s

4

These are the best conditions

.

Fastboot mode look :

FP6_bootloader_mode
FP6_bootloader_mode374×500 72.1 KB

“userspace” make me think to "fastbootD
(accessible via recovery mode → enter bootloader)

5

Hello

I succeeded to revert to FPOS. As you mentionned, my phone was probably not in fastboot mode when I tried earlier. Now I started the system, commanded “adb reboot bootloader” and the script worked.

Previously I got to what I thought to be fastboot mode by pressing volume down while starting the phone.

Thanks for your help.

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