Unlocking iPhone 4 for T-Mobile

**oilnwine** · 01-31-2012, 10:09 PM

Hi there, I'm new here. I got my son an iPhone 4 (5.0.1) and I was able to run jailbreak and downloaded and ran ultrasn0w, but for some reason it just won't unlock. I was told to turn it off and THEN boot it up with an active micro-sim. That means I have to go to T-Mobile to do that. Is there any place I can get an activated micro-sim besides T-Mobile? I just would hate to activate it, and then if the unlock doesn't work, then my son won't have a phone and I would have to buy the only T-Mobile micro-sim phone which is $400. Any suggestions?

Maddy

**XFF** · 02-01-2012, 12:18 AM

Unless you preserved your baseband I believe this version of the firmware cannot be unlocked.

Would be useful if you posted your baseband version.

**eastercat** · 02-01-2012, 03:04 AM

Put your son on at&t's pay as you go, h2o, straight talk or any number of at&t's MVNOs. No unlocking required.
You can always cut a sim down to size.

BTW, XFF is right, the most important info in software unlocking is the bb.

**oilnwine** · 02-01-2012, 02:18 PM

How do you find out what the baseband is?

**oilnwine** · 02-01-2012, 02:59 PM

OK, I checked for the BB version according to this link, but I can't find it. Under Modem Firmware, it says Diagnostic & Usage, Legal, and Regulatory. I can't find the BB info anywhere.

**oilnwine** · 02-01-2012, 03:01 PM

OK, this is the Modem Firmware: 04.11.08. Does that help?

**oilnwine** · 02-01-2012, 03:36 PM

Ever heard of the Pwnage tool? It's supposed to unlock the iPhone 5.0.1 for the mac. I just downloaded it, but still reading up on it.

**Creina23** · 02-01-2012, 05:35 PM

That baseband is not unlockable with ultrasn0w.

**oilnwine** · 02-01-2012, 07:41 PM

So what do I use? I have a Mac.

**Creina23** · 02-01-2012, 09:57 PM

It's not unlockable at the moment.

**APHIA** · 02-02-2012, 03:14 PM

Originally Posted by eastercat

Put your son on at&t's pay as you go, h2o, straight talk or any number of at&t's MVNOs. No unlocking required.
You can always cut a sim down to size.

BTW, XFF is right, the most important info in software unlocking is the bb.

this is your only option sorry

**eastercat** · 02-03-2012, 12:16 AM

Or buy an unlocked phone from Apple.

Originally Posted by APHIA

this is your only option sorry

**oilnwine** · 02-03-2012, 03:14 PM

I've heard some news that you are able to downgrade your firmware by using iClarified I also found another link: iNeedJailBreak that supposedly lets you jailbreak the iPhone4S now. Has anyone checked these out?

~Maddy

**ceredon** · 02-03-2012, 04:15 PM

You cannot unlock your phone. People keep telling you but you keep trying. Admirable but futile. You BB has been upgraded and not preserved, so you cannot unlock your phone.

Use one of the MVNOs suggested or sell it and buy an unlock unit from Apple.

**eastercat** · 02-03-2012, 05:29 PM

BB is locked once it's set. Unless you can replace the chip, you can not downgrade.
JB is not the same as unlocking.
You Can Not Unlock

Originally Posted by oilnwine

I've heard some news that you are able to downgrade your firmware by using iClarified I also found another link: iNeedJailBreak that supposedly lets you jailbreak the iPhone4S now. Has anyone checked these out?

~Maddy