Have you ever thought about this before! this is very interesting post to note and it’s a good idea to Jailbreak iOS 4.3.5 and 4.3.5 Semi Untethered using the SemiTether Tool compatible to.
Actually, this post was according to redmondpie, instead of going into details about SemiTether , we’ll first get straight to his point. When the BigBoss only mentioned about the SemiTether’s compatibility on iOS 5, they gave it a shot on their iPod Touch 4G Running iOS 4.3.5, jailbroken with this latest version of Redsn0w, which was version 0.9.9b8. But as expected, Installing SemiTether from Cydia greeted them with a complete halt on iOS 4.3.5, why? becuase the SemiTether is specially designed & meant for iOS 5.x only. You can see the Screenshot below to confirm the furtue details as the test was authentic or not.
From the image above, you can see that iOS 5 is a key requirement for SemiTether to work, otherwise it will throw you a dreaded ‘Cannot Comply’ error and there’s no way around it.
Something to Tell you about: The latest version of iOS, which could be jailbroken on all iOS Devices untethered was iOS 4.3.3, after that, Apple has seeded the iOS 4.3.4 update and patched the vulnerabilities, which stopped the Untethered Jailbreak as well. Don’t worry, here’s the only device which can be jailbroken untethered on iOS 5 is the iPhone 3GS with the Old Bootrom, and for every device, including the iPhone 4, all iPod Touch’s and the original ipad can be jailbroken tethered on iOS 5 using redsn0w or Sn0wbreeze. Even the latest developer only build iOS 5.0.1 can be jailbroken with redsn0w.
What is SemiTether or Semi-Untether Jailbreak
This is a very uncorrect way to achieve an untethered-ish jailbreak on your device, this is a package can be found in Cydia under the BigBoss repo, once installed, it allows you to boot your device as you would if you were jailbroken iOS Untethered. While it’s not a full Untethered Jailbreak, but similar to that having. In Semi-tethered mode, many key functions of the jailbroken device such as Cydia, Cydia apps, native Mail app, etc cease to work, and you have to connect to a PC or Mac in order to restore some normality.In the other words still much better than having just tethered-boot jailbreak.
Lastly, we are here to know that SemiTether doesn’t work on iOS 4.3.4 and 4.3.5 and which is compatible with iOS 5/ 5.0.x Firmware. Via