- 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.
I always tell people you’re not buying a phone ( software + hardware ), you’re just buying the hardware, what’s inside ( software ) it all belongs to the company, the manufacturer of your device
I’m glad to see that every person I said this to, seemed worried about their data, and asked me how they can truly own their phone