Can all iPhones be baseband unlocked?

PiKe

PiKe

PiKe

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I'm just curious as I have a Voda PAYG sim and wondered if I bought one that was locked to O2 I'd be able to use it?
 
PiKe said:
Is this a new development with iOS4?
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From what I gather:

2G, 3G: Fully unlockable
3GS: Depends on baseband or something, but possible.
i4: Isn't atm.

I think thats the current score.

My 3GS is o2 unlocked anyway so I don't really need to bother with unlocking...
 
Only the very latest baseband (supplied with and required by iOS 4.2.1) on the iphone 4 is unlockable at the moment.
Chances are if you bought a phone now it would come with 4.1 and you'd be able to unlock it with ultrasn0w.
 
The latest ultrasnow 1.2 supports unlocking on 3G/3GS baseband of upto 05.13.04 (iOS 4.0.1) and iPhone 4 baseband of upto 01.59.00 (iOS 4.0.2 I believe). At the moment it supports 3G/3GS unlock on the latest 4.2.1 firmware as well but it first requires a baseband update to 06.15.00, which is taken from the iPad 3.2.2 firmware (both shares the same modem chip).

The procedure is however irreversible which means you can't ever return the phone to factory state through iTunes, and that you're forever stuck with cutom IPSW file when you need to recover your phone. Also some people who have done this have reported issues with GPS functionality so you'll be taking a lot of risks.
 
steve258 said:
The latest ultrasnow 1.2 supports unlocking on 3G/3GS baseband of upto 05.13.04 (iOS 4.0.1) and iPhone 4 baseband of upto 01.59.00 (iOS 4.0.2 I believe). At the moment it supports 3G/3GS unlock on the latest 4.2.1 firmware as well but it first requires a baseband update to 06.15.00, which is taken from the iPad 3.2.2 firmware (both shares the same modem chip).

The procedure is however irreversible which means you can't ever return the phone to factory state through iTunes, and that you're forever stuck with cutom IPSW file when you need to recover your phone. Also some people who have done this have reported issues with GPS functionality so you'll be taking a lot of risks.
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You will be able to downgrade from the iPad baseband real soon. ;)
 
I've heard that Tesco use the O2 network, so I was wondering.....I have a tesco sim, would this work in an iphone 4 locked to O2?
 
L33 said:
Chances are if you bought a phone now it would come with 4.1 and you'd be able to unlock it with ultrasn0w.
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to unlock 4.1 you need to of gone from 4.02 to 4.1 and kept the old baseband using trickery. the default 4.1 baseband is not unlock able as far as i know
 
If you're feeling ghetto you can always cut it down yourself, but then you'll still have no data access so it's worth enquiring about their 3G data plan, if they do it.
 
scratch said:
Although he'll need a micro-sim for the IPhone 4 and I'm not sure if Teaco will send one out without converting you to an iPhone tarrif first.

Give them a call and ask the question.
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Am right in thinking even if they won't send a micro sim without me being on an iphone tarrif, I can convert my current sim DIY style to a micro one?
 
steve258 said:
If you're feeling ghetto you can always cut it down yourself, but then you'll still have no data access so it's worth enquiring about their 3G data plan, if they do it.
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I'm on the £10 a month sim only (Not iphone contract). Includes 500mins, unlimited text and unlimited data, so that won't be a prob
 
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