IOS4.0 update - HELP!

[Clart]

Just upgraded my jailbroken 3G to 4.0. Now its saying the SIM is not supported and i can't get into the phone....

 

[Gavin.]

was it unlocked before you updated it?

 

[Clart]

its was unlocked using red snow i think

 

[Christopher]

That carrier unlock is voided under OS4.0 and above.

 

[Gavin.]

i think its still possible to unlock a 3g? you need to jailbreak first then unlock

 

[Christopher]

It doesn't matter which device you have. Update to 4.2.1, then run the jailbreak and carrier unlock.

The 3G won't be tethered either, which is a bonus. A4 chip devices need an additional jailbreak to remove the tethering.

 

[Clart]

so if i put an o2 sim card in i can jailbreak then unlock?

 

[Christopher]

Doesn't matter whether the SIM is in or out for the jailbreak mate.

 

[Clart]

i cant see the phone in itunes though, says the sim card is not supported

 

[Gavin.]

exactly which version of 4.0 have you updated too? 4.0, 4.0.1, 4.1, 4.2.1? just so i can find some details for you

 

[Christopher]

If it's through iTunes, then it'll be 4.2.1

 

[Clart]

i downloaded this iPhone1,2_4.0_8A293_Restore then shift clicked restore and pointed to the file.

 

[Gavin.]

If it's through iTunes, then it'll be 4.2.1

I thought that, is 4.2.1 unlock-able at the mo? I know it isnt on the 3gs or 4

 

[Christopher]

Nah, it is.

There's currently no carrier unlock for A4 Chip (iPad, iPod Touch 4Gen and iPhone 4) devices or MC-Model 3GS'

So his 3G will be fine.

 

[Gavin.]

thought so, bare with me clart its a while since i have touched a 3g

EDIT: From what i can see Redsn0w 0.9.5 will jailbreak it

 

[Christopher]

Use felixbrun for the firmware, then devteam's blog.

Simples.

 

[Gavin.]

Try this: http://www.blogsdna.com/9259/unlock-iphone-os-4-0-running-on-iphone-3g-with-ultrasn0w-0-92.htm

 

[Christopher]

He doesn't need to downgrade to 4.0 though. :S

 

[Clart]

speak english please - i cant get into the phone at all - says insert sim with no pin lock to activate.

 

[Christopher]

Just follow this. Done. All the links you need are in his video description.

As I said, don't bother with the link above.

 

[Clart]

the firmware was 4.0 that i restored.

 

[Christopher]

Well upgrade to 4.2.1 if you want.

If not, that jailbreak vid will still work for 4.0. Just download the 4.0 firmware from the link he gives.

You might as well be on 4.2.1 though.

 

[Clart]

but i cant get into it either on the phone or though itunes

 

[Gavin.]

turn it off, then hold the home button while plugging it in to the sync cable and update to 4.2.1

EDIT: Then use this guide http://techstat.net/jailbreak/how-to-unlockjailbreak-iphone-3g-4-2-1-with-baseband-05-12-04-and-later/ (this is mac version although there is a windows link at the top of the page to)

 

[Clart]

ok its in recovery mode and trying to restore to 4.2.1

 

[Clart]

its finished but still says no SIM card installed. Insert a valid SIM with no PIN lock to activate iphone. GREAT!

 

[Gavin.]

you need to jailbreak it pal, it wont activate because it isnt a valid sim. follow that link i posted above then run ultrasnow from cydia to unlock, once you get that far

 

[Clart]

right its all working. I was doing that exact process for the 4.0 ipsw and redsn0w said it couldn't find it. Works ok with 4.2.1. Cheers.

I backed the phone up through itunes - how do i restore all my contacts and apps?

 

[Gavin.]

should have the option to sync contacts when you sync it...

Mine are all synced with windows contacts, but yours might be outlook etc