- Unlock bootloader (depending on vendor, you have to do an online verification),
- flash a recovery.img,
- load into recovery mode (which, depending on the phone, might need extra work)
- wipe some caches,
- select new os/rom image,
- pray it doesn’t brick your phone.
You’d think someone would’ve learned a thing or two from the easy graphical installations linux and even windows have been offering since the late 2000s.
Yeah, xiaomi mi 9t with pixelos. Then Universal Android Debloater, disable all the telemetry (wish I could just use this thing without google, but thats a topic for another day), got a new case and battery. It literally feels like i just bought a new phone even though this thing will be 5 years old!