help! CYDIA vanished after upgrading to 4.2 firmware

**PoliDang** · 02-28-2011, 10:20 PM

hi i upgraded my iphone 3g to 4.2 firmware/software after that i lost all apps i downloaded previously.my question is:

1. do i have to re-jailbreak my iphone?
2. what to do to install cydia back?

i dont know what program/software used to jailbreak my iphone?

**Goof** · 02-28-2011, 10:24 PM

Download Redsn0w and also download the 4.2.1 firmware. Then run redsn0w and select "Install Cydia" and you should have Cydia again.

**PoliDang** · 02-28-2011, 10:31 PM

hi where should i download the redsnow and how? do you mean i have to re-update my iphone again to 4.2.1 firmware? thanks

**Goof** · 02-28-2011, 10:49 PM

Originally Posted by PoliDang

hi where should i download the redsnow and how? do you mean i have to re-update my iphone again to 4.2.1 firmware? thanks

You can download the latest version of redsn0w:

Mac Download

Windows Download

And you don't need to re-update your iPhone.

Sent from my iPhone using ModMyi

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