iPhone 4 and 4.0.1 UNLOCK is live!!!!

JodyK

macrumors 6502a
Original poster
Jan 29, 2010
714
14
Northern Atlanta suburbs
iPhone Dev team has an unlock to go along with the jailbreak ... go to Cydia and download Ultrasn0w !!!

I just successfully upgraded and unlocked 3 3gs and 1 iPhone 4!
 

California King

macrumors 65816
Sep 20, 2007
1,066
8
Let them, I don't mind. Except of saying "No SIM" my phone says "No Service." Now. Too bad I don't have a TMo micro SIM to test this >.>

Just to make sure I got this right, all I do is install UltraSn0w from Cydia and restart?
You shouldn't even need a restart, just a respring, which it does for you. If it still isn't working, make sure the micro-sim is seated correctly and restart it if necessary.
 

JodyK

macrumors 6502a
Original poster
Jan 29, 2010
714
14
Northern Atlanta suburbs
Let them, I don't mind. Except of saying "No SIM" my phone says "No Service." Now. Too bad I don't have a TMo micro SIM to test this >.>

Just to make sure I got this right, all I do is install UltraSn0w from Cydia and restart?
I had some 3GS iphones and 1 iPhone 4. I have Tmobile ... I had an old non working AT&T sim card (any one will work as long as it was activated at some point - also a prepaid card should work - or bum a friends sim).

Plug in your iPhone to iTunes and do a backup just in case. Then upgrade to 4.0.1 if you aren't already on 4.0.1. Then you will need an AT&T sim in the iPhone to get past the activation screen. It will read trying to activate make take awhile ... blah blah ... just slide to unlock and by pass this.

Connect to a wifi network and go to jailbreakme.com in safari and on the bottom of the screen do the slide to jailbreak. This will jailbreak and add Cydia.

Make sure 3G is turned off in network settings. Open Cydia and go through the interface preference (I choose the user one) upgrade the Cydia essential upgrades and after the Cydia reboot then reopen Cydia and go to search. Search for ultrasn0W and install ... BAM! Unlocked 4.0.1!

And if you have a full size sim and an iPhone 4 its possible to trim your sim but I don't recommend it for everyone to try themselves.
 

Goldinboy17

macrumors 65816
Jun 21, 2010
1,304
0
San Francisco, Ca
I had some 3GS iphones and 1 iPhone 4. I have Tmobile ... I had an old non working AT&T sim card (any one will work as long as it was activated at some point - also a prepaid card should work - or bum a friends sim).

Plug in your iPhone to iTunes and do a backup just in case. Then upgrade to 4.0.1 if you aren't already on 4.0.1. Then you will need an AT&T sim in the iPhone to get past the activation screen. It will read trying to activate make take awhile ... blah blah ... just slide to unlock and by pass this.

Connect to a wifi network and go to jailbreakme.com in safari and on the bottom of the screen do the slide to jailbreak. This will jailbreak and add Cydia.

Make sure 3G is turned off in network settings. Open Cydia and go through the interface preference (I choose the user one) upgrade the Cydia essential upgrades and after the Cydia reboot then reopen Cydia and go to search. Search for ultrasn0W and install ... BAM! Unlocked 4.0.1!

And if you have a full size sim and an iPhone 4 its possible to trim your sim but I don't recommend it for everyone to try themselves.
Thanks a lot. Just needed to confirm that all I needed to install was UltraSn0w. Now I just need to make a T-Mobile MicroSIM!
 

iHeartapple2

macrumors 6502
Jun 29, 2010
336
3
If you are in the US and you unlock your phone then your only other option besides AT&T is T Mobile. Why would you leave AT&T to go to T Mobile?
 

The Tuck

macrumors 6502
Jun 8, 2003
416
26
You probably wouldn't leave AT&T for T-Mobile, but you might buy a SIM card in Europe if one were on vacation. It will be very nice to have an unlocked iPhone 4.
 

The Tuck

macrumors 6502
Jun 8, 2003
416
26
Just to clarify, is this a software unlock? IE, if I restored my phone and lost the jailbreak, the phone would no longer be unlocked, right?

-Tuck
 
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