Originally Posted by sherlock5545
I was on Three branded as well, and flashed the unbranded firmware.
1. You don't need to root the phone at all.
2. You won't lose any data, the phone remains the same as it is. Just do a backup of anything you won't be able to recover if something goes wrong.
Just done it. No issues. Very straight forward.
Only thing I have noticed is Kies now say something about not being able to upgrade the phone software anymore. Presumably I will have to upgrade future firmwares via Odin manually from now on?
Will I see OTA upgrades on my phone or will that not work either? Saying that I've never had an OTA upgrade yet being on Three network!