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Hey all,

I recently moved from Canada to New Zealand. I was using Rogers as a carrier in Canada and have just bought a Telecom SIM card. I went through the redsn0w jailbreak and installed Cydia. I unlocked it with ultrasn0w. The problem is, when I insert my new NZ SIM card I get a notification saying "Invalid SIM", followed by a big ole NO SERVICE. Any help would be appreciated. Let me know if anyone has any answers.

Cheers.

asked 21 Jan '13, 02:26

danosh84's gravatar image

danosh84
1112

what is the modem firmware of the iphone?

settings > general > about > modem firmware

(21 Jan '13, 02:28) Mark Hack ♦ Mark%20Hack's gravatar image

unless your baseband is 01.59.00 ultrasn0w will not unlock an iphone 4

link

answered 21 Jan '13, 02:28

theiphoneguy's gravatar image

theiphoneguy ♦
36.5k54618

Yeah, I heard something about that. Wasn't sure if it was a good idea. Does downgrading your baseband adversely affect anything on your phone? And how do I go about downgrading my baseband?

Thanks

(21 Jan '13, 17:37) danosh84 danosh84's gravatar image

you can not downgrade an iphone 4 baseband

(25 Jan '13, 09:26) Mark Hack ♦ Mark%20Hack's gravatar image

Buy an official unlock is better. You can use any carrier forever even you upgrade or restore

link

answered 25 Jan '13, 08:38

Answers%20to%20iPhones's gravatar image

Answers to iPhones
-1593

Buy official unlock from original carrier not so expensive and it's permenant you can upgrade and downgrade.

link

answered 26 Jan '13, 00:18

Tomas97's gravatar image

Tomas97
-192

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Asked: 21 Jan '13, 02:26

Seen: 749 times

Last updated: 26 Jan '13, 00:18

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