Hello,
welcome in the forum
If the stock ROM of your Xperia X10 is on Pie, you could flash it to start from scratch before installing the unofficial Pie GSI build.
Other people with more knowledge on Sony might help more.
Hello,
welcome in the forum
If the stock ROM of your Xperia X10 is on Pie, you could flash it to start from scratch before installing the unofficial Pie GSI build.
Other people with more knowledge on Sony might help more.