I have honestly done some searching and read numerous posts before asking this question. There is so much information available here that at this point I just don't know what the right thing to do is!
Here's my situation:
I currently have a 1.1.2 phone that's jailbroken and unlocked and working great.
This unit was purchased OTB 1.0.2 then the baseband revirginized and updated to 1.1.1 and finally updated to 1.1.2 unlocked with Anysim.
The phone is around 8 months old and from what I understand looking at the serial number is a week 33, therefore a 3.9BL (I think)
Now I'd like to move up to 1.1.3. What is the best way to do this using a Mac with OSX Tiger.
Do I need to check if the phone is 3.9BL or is it a given it is considering it's 8 months old and 1.0.2 OTB.
Some help would be greatly appreciated!