Help! Still on jailbroken IOS 3.0 on my 3g & need to upgrade
Hi, really hope someone can help. Over 2 years ago I successfully jailbroke and unlocked my iphone 3g with Redsn0w and Cydia so I could use my own sim in it. I used this really easy gizmondo step by step guide Jailbreak and Unlock iPhone 3.0
I'm a beginner to all this so found the guide really helpful. However ios 3.0 is now really old and incompatible with most apps. I want to move up to at least 3.1.2 but have no idea what I should do.
Can anyone offer or point me in the direction of a simple 'for dummies' style guide? Do I need to start from scratch?
The more I google the more confused I become as jailbreaking has really moved on since I originally did mine.
Thanks in advance