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iPhone 3G 3.1.2 Downgrade?

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XDItsMe

macrumors newbie
Original poster
Hello, I am a PC user looking to jailbreak and UNLOCK my iPhone 3G that is currently on the 3.1.2 firmware.

Is this currently possible? I understand if I wanted to jailbreak and unlock on 3.1.2 straightaway i would need a mac to use quickpwn.
 
XDItsMe said:
Hello, I am a PC user looking to jailbreak and UNLOCK my iPhone 3G that is currently on the 3.1.2 firmware.

Is this currently possible? I understand if I wanted to jailbreak and unlock on 3.1.2 straightaway i would need a mac to use quickpwn.
Click to expand...

No. If your iPhone is on stock 3.1.2 firmware, the baseband locks out all unlocks. You can jailbreak using blackra1n on windows.
 
XDItsMe said:
What do you mean?
Click to expand...

Piggy back sims like TurboSim. But they are not reliable.

You cannot likely ever unlock that phone, so if you need an unlocked phone, sell it and get a phone you can unlock.

By the way, all the new 3GS phone now come with a new bootrom that interferes with jailbreaking. You have to JB before you can unlock.

Use Google to do some reading.
 
dhlizard said:
Piggy back sims like TurboSim. But they are not reliable.

You cannot likely ever unlock that phone, so if you need an unlocked phone, sell it and get a phone you can unlock.

By the way, all the new 3GS phone now come with a new bootrom that interferes with jailbreaking. You have to JB before you can unlock.

Use Google to do some reading.
Click to expand...

Wait so its highly likely that my iPhone 3G 3.1.2/ modem firmware 05.11.07 can never be unlocked? Also what firmware do the 3g's come out with straight out of the box, I may pay $199 to get an out of warranty replacement.
 
XDItsMe said:
Wait so its highly likely that my iPhone 3G 3.1.2/ modem firmware 05.11.07 can never be unlocked? Also what firmware do the 3g's come out with straight out of the box, I may pay $199 to get an out of warranty replacement.
Click to expand...

It's unlikely there will be an unlock for the 5.11.xx baseband.

New 3GS probably have 3.1.2 and the new bootrom

The re-manufactured 3GS phones, who knows.
 
dhlizard said:
I have already answered both these questions for you !

If you are not satisfied with the answers, then use Google to research to draw your own conclusions.

Good Luck
Click to expand...

Not to be a burn here but I was asking why its unlikely and why turbosim is unreliable, but thank you anyway. 🙂

I guess I have to buy a turbo sim for my iPhone 3G
 
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