@ubiulbo I could install it following this way: https://docs.ubports.com/en/latest/userguide/dailyuse/anbox.html#how-to-install I did not use fastboot.

I thought the Sony Ericsson P800 Anyway, it seems to be a not so popular phone so your chances may not be that good but you can always try

@UbiUlbo Sorry, I don't know. I don't use Libertine. I hope someone with knowledge will see this and can help you. Have you searched the .cache directory ?