Updating 4 2 version on iphone 3gs
Update 1: i OS 6.1.6 fixes the following security issue: Update 3: winocm has confirmed that i OS 6.1.6 does not fix the vulnerabilities used in p0sixspwn jailbreak, so it is safe, but you may want to wait for them to release a new version of the jailbreak for i OS 6.1.6.
Redsn0w 0.9.6b5 jailbreaks i OS 4.2.1 but also provides the added ability to install baseband firmware that can be unlocked for the i Phone 3GS and i Phone 3G.
So it's at least one bug: Sonos on 3GS should not have a no-choice update and/or should not direct to an App Store where there is no update available.
Here you will learn how to jailbreak your i Phone, i Pod Touch, i Pad, Apple TV and Apple Watch running a variety of firmware versions.
For other i OS devices, redsn0w 0.9.6b5 will simply jailbreak the device but some models will be a tethered jailbreak.
It’s very important to remember that the 06.15 baseband update for i Phone 3GS and i Phone 3G that is required for an update is irreversible and it will void your i Phone warranty with Apple.
3: Sell, give away or dispose of your i Phone 3GS and upgrade to a newer model. Very tough phone and yes I agree the 4s build was week mine only last about a year and one drop caused it to disintegrate within months even losing the camera the buttons became stuck the glass cracked off completely.When you Jailbreak your i Phone, i Pod Touch, i Pad or Apple TV you get to decide how your device functions and what types of modifications you want to do to it.In a way you could compare Jailbreaking your i OS device to modifying vehicles.If you followed the guide correctly, you will now have an unlocked i Phone and you will be able to use it on other carriers.Devices that can not be unlocked will simply be jailbroken, some of which may be tethered.