Tag Archives: Bootloader 5.8

[iPhone] iPhone 3G Bootloader 5.8 Compromised

George Hotz – well known to the iPhone scene as GeoHot – has put some efforts into analyzing the  behaviour of the bootloader 5.8 that is running in many iPhone 3G’s. He found the signature checking of the bootloader is buggy. By exploiting this bug we are now able to up- and downgrade the bootloader. Sadly many of nowadays iPhone 3G’s contain bootloader 5.91. which added an RSA check that GeoHot could not circumvent yet. Read his whole article here.

By the way: this seems to be the same exploit the iPhone Dev Team used and released to be able to be used for manipulating (read our news here). Anyway GeoHot did standing work again. Kudos to you, dude.

[iPhone] iPhone 3G Baseband Bootloader 5.8 Dumped

Ta_Mobile of the Vietnamese hardware division GSMVN succeeded in dumping the baseband bootloader 5.8 of an iPhone 3G. Ta_Mobile has also dumped bootloader 4.6. Reverse engineering of the 3G bootloader will now begin to find possible exploits. Don’t expect anything soon, but this is great news anyway.

Congrats to Vietnam. Standing work, guys…