I have a 2g iphone that has been unlocked and jailbroken with pwnage 2.2.5. Everything works very well including downloading apps from Cydia and Icy. I use Wi-Fi rather than pay for a data plan.
Some of the apps I have downloaded have been upgraded and now require 3.0 firmware. How do I SAFELY upgrade the firmware to 3.0 and still remain unlocked a jailbroken.
I have read a number of different blogs and most point to using redsnow or ultrasnow (I use a PC not a Mac).
Has anyone out there been successful at upgrading their 2G and still get ALL their features to work?