Recover lost speed of an Android phone (THL T11)

After using my phone for a few years, it started to act up. First of all random reboots started, then the whole phone slowed down so much, that even the simplest applications took a minute to start.

I decided to give it a good clean factory reset. It did however become a bit more complicated than expected. To make sure I don’t run into trouble like this again, I decided to take notes during the process, and share it. Maybe someone else will have similar issues. Continue reading “Recover lost speed of an Android phone (THL T11)”