An upgrade via OTA (Settings – General – Software Update). 7.1 ~ 7.1.1 firmware of the device may result inescape failure, it is recommended to re-jailbreak using iTunes before the upgrade / restore iOS7.1.1 firmware.Click here for the tutorial >>>
2. sure to back up your iPhone / iPad / iPod data before the escape, to prevent accidental loss. Click here for the tutorial >>>
3. according to [iOS7.1.-7.1.1 jailbreak detailed graphic tutorial] guidelines jailbreak operation.