Step 2: Reboot your device so that Yalu is disabled.
Step 3: Enable Find my i Phone on your device and connect it to the working internet source. Step 4: Launch a browser on a PC and sign into your i account.
There are two methods to erase all the content present on your device.
In the first method you fire up Settings app, go to General and scroll down to the RESET option.
The second method which even deletes Cydia along with Yalu is by erasing the device using i Cloud.
Step 1: Create a backup of your device either using i Tunes or i Cloud so that you don’t lose anything in case something bad happens to the device during the process.
Now tap on Erase All Content and Settings to get rid of everything on your device.
In case Cydia icon is still, simply repeat the above method before restoring the backup from i Tunes or i Clouds.All i Phone or i Pod Touch settings are restored to their factory condition. First thing to check is to make sure you have the latest version of i Tunes installed on your Mac or Windows PC. When your phone is detected, select it in i Tunes under the list of devices.If your i Phone is not responsive and i Tunes does not detect it we must put your phone in DFU mode.Well I will tell you how to restore you i Phone back to it's factory settings in a few simple steps.Restoring your device will erase all data from your i Phone or i Pod Touch, including songs, videos, contacts, photos, calendar information, and any other data.