Xperia 10 III - unlock

[ljutica]

I can’t possibly unlock the bootloader on the xperia 10 III:

bootloader-2

[attah]

Have you enabled unlocking in the Android settings menu as per the instructions?

[aspergerguy]

Are you using the latest version of the SDK platform tools for Android at SDK Platform Tools release notes | Android Developers,?

[attah]

They seem to ship fastboot for Windows with the files for flashing, so that shouldn’t be needed,

[Blumenkraft]

Apparently sometimes it is needed.

Flashing Xperia 10III fails - What to do?

Ok, consulting a Linux Phone guru friend of mine, we think we have made progress. He’ not sure why the userdata partition was in a snapshotted state, but cancelling this should allow fastboot to overwrite it. The command is ./fastboot snapshot-update cancel but this won’t work because the Jolla supplied version of Fastboot in the Sailfish 4.4.0.64 zip file for the Xperia 10III is too old and does not support this command. The solution is to download the latest version of the SDK platform too…

[ljutica]

Following this tutorial I managed somehow to unlock the phone:
Sony Xperia - How to unlock bootloader and install a custom firmware - Sony Xperia - How to unlock bootloader and install a custom firmware - Invidious