Unlocked iPhone User: Please Remember Not to Update to iPhone 3.1

by Simon Ng on September 9, 2009



In less than 24 hours, Apple will kick off the “It’s Only Rock and Roll, But We Like It” special event. Bloggers and analysts speculate the announcement of new iPods in the event. Some also guessed that Apple will debut the iPhone OS v3.1.

I’m not too sure if a new version of iPhone OS will be released. But let me take this opportunity to warn you again. If you’re using ultrasn0w to unlock your iPhone 3GS or 3G, remember not to update to iPhone OS 3.1 directly via iTunes when it’s released. You may end up losing the ultrasn0w unlock. That is, you cannot make call or receive call.

So, even iTunes prompt you for the iPhone update, remember to say “No” and wait for iPhone Dev team to give you the green light.

Here is the complete reminder from iPhone Dev team:

If you update to Apple’s new software using the normal iTunes process, you will lose your ultrasn0w unlock. In fact you may lose it permanently, because for most people the baseband firmware cannot be reverted to a previous version (unlike the main application CPU firmware).

But don’t worry…our PwnageTool program let’s you update your main firmware without touching your baseband firmware, so you can still have the best of both worlds. But you must be diligent about saying “no” to your iTunes request this week to update your firmware.

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{ 7 comments… read them below or add one }

1 Greg September 10, 2009 at 7:18 am

Is it safe to update to 3.1 if I have jailbroken my phone using purple rain?

Reply

2 Her September 10, 2009 at 10:48 pm

hi!, I have an 3gs with iphone 3.0 jailbraked, Can I just upgrade to itunes 9 or I need to wait to upgrade my iphone to have the new version of itunes? thanks.

Reply

3 Simon Ng September 11, 2009 at 1:31 am

@Her, you can upgrade to iTunes 9 with your current version.

Reply

4 CB September 14, 2009 at 12:57 am

Hi,

I made the mistake of updating my itunes and now my iphone is locked again. My iphone is not the latest 3G, but the one just before that (2G I believe). Will I ever be able to unlock it again? I am no longer in the US and would like to use my iphone….

Reply

5 Simon Ng September 14, 2009 at 9:26 pm

@CB, if you’re using 2G, you can try to downgrade to iPhone 3.0. And, jailbreak the iPhone again using redsn0w.

Reply

6 cat September 16, 2009 at 9:23 am

I also without knowing better downloaded 3.1 on my 2G iPhone today. How do I downgrade it and then unlock/jailbreak it again without a sim card? PLEASE help.

Reply

7 cat September 16, 2009 at 9:28 am

(same person as above), my iPhone is the old 3G, not 2G or 3GS

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