Hi..
I am trying to make my iphone back to out of box setting(virginizing).
It was 1.1.2 obt, now 1.1.4 unlocked.
To do that :

1. change BL to 4.6
2. Restore firmware to 1.1.2 using itune or 1.1.4

is there something else I need to do?
I can find plenty of tutorials, but I want to make sure I am on the right path.

I want to go back to locked OTB phone to get apple warranty.

Thanks in advance.

what you do is restore your bootloader to 4.6, with a neutered 4.6BL erase your baseband with ieraser and then once your baseband is erased use bootneuter and turn "neuter" to off.

then downgrade to 1.1.2 and you should be OTB hope this helps