It's an iPhone 4 with ios 4.2.1 and I want to jailbreak. Possible yet? If so, what is the best way?
I am no expert, but my understanding is...
Tethered jailbreak - requires you to re-jailbreak after every re-start
Untethered jailbreak - you do not have to re-jailbreak
Tethering using your iPhone or other device as a mobile hotspot is something totally different
I don't want to change subjects, bit I really don't mean to start a new thread on this either since it's a really simple answer.
I know to downgrade from 4.2.1 you need SHSH blobs of 4.1 saved to your computer. I've had my ip4 since release day and backed up regularly on all iOS versions - so I should have mine saved somewhere yes? My question is where does iTunes store it. Willing to lose 4.2.1 to JB. Thanks.
Also, for tethering iPhone, what is the best app? miwi or itether?
MiWi works great to resolve the battery draining issue adjust under "advanced wifi" and change the "transmit power to around" 40% and you will not have much of a battery problem. Although your iPhone will need to be closer to the computer you are using. I can not speak on itether as I have not used it.