Hi [UPDATE] It appears I’ve missed the step reverting to some 0ld Android version – there are probably 2 reason why this happened: (1) font size is small and contrast is (IMO) very bad in that instructions page (the link is almost invisible) ;/ and (2) I cannot understand why such a step is needed …

OK. Now it worked. Probably the problem was misstyped IMEI code Following the instructions got device flashed to SFOS, just had to $ sudo fastboot reboot to get it rebooted. Thanks for everyone involved.

Xperia 10 III -- fastboot oem unlock 0x... FAILED (remote: Command did not succeed)

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jolla4ever 30 October 2022 00:02 2

BTW: you better revert to Android 11.