How is 4.2.1 for iphone 3g

It should now be in recovery mode. Extract the content of the zip folder and start Redsn0w. Redsn0w processes the firmware after which you must click the Next button. You only need this if you need to unlock your iPhone using ultrasn0w after jailbreaking with redsn0w. Now click Next and on the next page, you have to do certain combinations to make you iPhone enter DFU mode. This is quite easy and you need to closely follow the prompt or the whole process will fail.

That phone is too old for a newer iOS, and those apps will not run on it. You need a newer phone if you wish to use those apps. One that will support the iOS necessary. There is no way to resolve the issue except to buy a newer phone. It is not an app that you download, it would have been part of the iOS if it was on there. Check your Settings. I've don't have an older phone to test that with.

Cydia is a jailbreaking app and it cannot be discussed here on the forum. Communities Get Support. Sign in Sign in Sign in corporate. Browse Search. Ask Different is a question and answer site for power users of Apple hardware and software. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I've tried to go on iTunes check my updates - but it says your phone as been updated your current version is 4.

The highest supporting operating system of iPhone 3g is iOS4. Apple discontinued iPhone 3g on June Note: Whitedoor is just an iOS 3.

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?