If so, what method should i use?
And if not, whats wrong with it.
I tried upgradeing on an unlpocked phone before the update and i was freaking out when i couldnt unlock it and it kept rebooting, DOTN DONT DONT DONT wanna have same problem, so im just amking sure its 100% safe
Yes, there is a guide if you want to know it's pretty straight forward...... just click
2.0 Unlock / jailbreak and which OS your using...... it's near the top of the page....