Cydia Stopped Working After Installing iOS 5 SemiTether Jailbreak App

Hello Kevin! SemiTether is working accordingly on jailbroken iPhone 4, iPhone 3GS, iPad, and iPod Touch, except for those iPhone users who have installed Ultrasn0w and AppSync as these applications require a complete tethered boot to work properly. Anyway, have you tried to tethered boot your iOS device? If not then please do so.

Redsn0w Tethered Boot

Step 1: Tether (connect) your iPhone (iPod Touch or iPad) to your computer.

Step 2: Launch the downloaded Redsn0w 0.9.9b7 jailbreak tool.

Step 3: Select the Extras option.

Step 4: Then click on the Just boot option

That’s it! The jailbroken hardware will now boot with the aid of Redsn0w.

Sn0wbeeze Tethered Boot via iBooty

Step 1: Power off and connect your iPhone into your PC. Then launch iBooty.exe and choose your iPhone from the list of iOS devices from the drop-down list.

Step 2: Now, you have to put your iPhone into DFU mode. If you aren’t familiar with the steps, you can follow the guides posted below:

• Press the Home and Power button at the same time for 10 seconds.
• Then release the Power after 10 seconds but keep holding the Home button.
• Just wait till iBooty detects your iPhone in DFU mode and then release the Home button.

Step 3: As soon as iBooty will detect your iPhone in DFU mode, it will immediately patch your iPhone using the Limera1n exploit.

Step 4: If you get stuck at "Waiting for device..." step, all you have to do is perform the step 2 and put your iPhone in DFU mode again.

That’s it! You should now be able to use the all features of your jailbroken iOS device on iOS 5. You can check this blog post to know more about SemiTether jailbreak app.