'clean install' of previous JB/UL phone
i have a fully functional jailbroken and unlocked 3G with 3.1.2/05.11.07 (with pwnage/mac). it went off without a hitch the first time, so i've never had to tinker with the phone.
problem is over the years the UI has become so sluggish it is practically unusable.
what is the procedure for rolling back the phone to factory settings and re-jailbreaking/unlocking? would i/could i use pwnage/blacksnow or pwnage/ultrasnow? is one easier/less risky than the other?
sorry i don't know what the proper terms are...so, it makes it hard to do a search. hopefully i've explained it well enough for someone to point me to a tutorial or some more reading.
thanks in advance.