Meizu pro 5 without any os.

[bontemps]

Yes, this one work but i can't mount the data partition in order to wipe it.

[Stefano]

@bontemps ok, just wipe it then without selecting data partition

[Stefano]

@bontemps because there is no such a partition

[Stefano]

@bontemps after wipe, reboot the recovery

[bontemps]

So, i wiped but there is no TWRP/ Backup(i use adb shell ls).

[Stefano]

@bontemps you need to attempt to Create the backup first. Just tap on backup and let it run. Then it will fail as there is nothing to backup yet, but you'll have a folder created and there you put the Backup I provided and restore it.

[bontemps]

Sorry i was confuse, i wanted to write : So, i wiped and then i made a backup but there is no TWRP folder at all.

[Stefano]

@bontemps there is Mount field, click on it, unmout then mount all partitions that you can sellect. If connected to your PC, you should see the Folder TWRP, inside is BACKUPS, then strange number and the backup inside

[Stefano]

@bontemps unplug the phone and plug it back to PC

[bontemps]

I made it, but when looking with the file manager i see no TWRP folder (on the phone).
And no more when looking with adb (with the pc).
I have a twres folder but it didn't contain any backups.

[Stefano]

@bontemps make another backup and there is an option to select the location of Backup, internal or external SD, choose internal

[Stefano]

@bontemps after that, click on Advanced, there is FILE MANAGER and try with that. But the InternalSD needs to by mounted by recovery

[bontemps]

it say that there is 0 MB on the internal storage.
it is maybe that.

[Stefano]

@bontemps ok, we probably go to Second scenario and flash this flashable zip which is FLYME global version with unlocked bootloader. This will restore everything on your phone. Once flashed, reboot to recovery again.

[bontemps]

No, its fine, i put an sd card and made the backup on it, i have the Backup and so.
I go further in the steps.

[Stefano]

@bontemps ok ,that's the option as well.

[bontemps]

So, i unzip the archive and i put it on the phone to be restored, is it?

[Stefano]

@bontemps yes

[Stefano]

@bontemps I have to go to bed now as I wake up at 02:15 am tomorrow.
If there is a problem, download the Flyme unlocked bootloader zip file I sent you the link, flash it with TWRP, then reboot to recovery, wipe it there all clean, and go again to Restore and restore the backup you downloaded previously. Then reboot to bootloader and flash Ubuntu recovery, reboot and it should be all ok.

[bontemps]

OK, thank you very much.