Jail broken & lost

[Jay2047]

I have a jail broken iPhone 4 & did hit the upgrade on now I can't get internet & cydia is not responding. How do I get the phone back to factory settings?

 

[sherlock]

There was an announcement somewhere not to update your jailbroken device over the air. The way to do it is to connect to iTunes and avoid issues. I expect you're going to have to restore or upgrade in iTunes.