If you have a jailbroken Apple iDevice then a simple wipe to factory settings or the "Erase All Content And Settings" option on your device can send it into a infinite bootloop as discussed here. Earlier I have personally resorted to various tools to wipe important data like contacts on my iDevices and today I will be sharing how to wipe-clean your jailbroken device using a single free utility - Semi-Restore.

Semi-Restore, as the name suggests is a free, cross-platform tool to restore your Apple iDevice to a clean wipe (factory-reset) state without any issues on jailbroken phones. Compatible with all jailbroken iPhone, iPod touch, iPad and iPad mini models running iOS 5.0 through 8.4, the tool wipes all your personal data and settings leaving the jailbreaking intact.

You would definitely want to wipe-clean all personal data from your phone like address-book, messages, camera-roll etc. before selling or handing over to somebody, we have shared a tip for jail-broken phones allowing users to erase iPhone contacts with ease. iOS also comes with a built-in iPhone personal data eraser functionality which takes care of wiping-off all the personal data from your device, the problem is if you have an jailbroken iPhone your device will not boot-up after using this functionality - and if you don't have your SHSH blobs saved you will need to force-update to current iOS version which might mean permanent loss of carrier-unlock..