The latest release from Apple, the newest version of their iPhone OS 3.1.3 has attracted many consumers to convert. However this version had been plagued by some minor bug fixes and improvements before fully being released out to everyone.

In any case you still haven’t jailbroken or unlocked your iPhone but you have plans of doing so, it is important that you read this post first before jumping in head-on.

The Dev Team of iPhone releases this warning statement to users who have already jailbroken and unlocked their iPhones:

WARNING! At 10.30AM PST on February 2nd 2010 Apple released the 3.1.3 version (7E18) of the iPhoneOS.

If you care about your jailbreak and unlock, don’t update your device - 3G and 3G(S) owners should pay particular attention to this warning.

  • PwnageTool and redsn0w are not yet compatible with 3.1.3
  • There is no estimated release time for compatible tools (please don’t bug us about this).

Apparently, iPhone OS 3.1.3 also updates the baseband firmware from 05.11.07 to 05.12.01. This simply means that if you’ve updated your jailbroken and unlocked iPhone by accident, you might not only lose the jailbreak but you could even end up with a locked iPhone. When this happens, you’d have to wait for someone to unlock the baseband included in OS 3.1.3 or search for someone who can downgrade the baseband for you which is highly unlikely at present.

There had been recent updates released by the Dev Team. Read on to find out more:

Update 1: [Don’t go near this if you have 3GS, newer ipt2G, or any ipt3G] Thanks to daring experimenters in the comments, we can confirm that yesterday’s redsn0w works for today’s 3.1.3 update for iPhone 2G. Just point it at the 3.1.2 iPhone 2G IPSW after doing update or restore to 3.1.3. So far we’ve only confirmed this for iPhone 2G. (Note that if this does work for iPhone 3G too, you can *only* use it if you don’t care about the unlock.)

Update 2: [Don’t go near this if you have 3GS, newer ipt2G, or any ipt3G] Can confirm that this method works for iPhone 3G and iPod touch 1G too. Don’t do it for iPhone 3G if you need an unlock though (really, don’t!). For older iPod touch 2G, we’ll need a small (1-character) change in redsn0w source.

Update 3: [Don’t go near this if you have 3GS, newer ipt2G, or any ipt3G] For those with older (non-MC) iPod touch 2G, we’ve compiled a special version of redsn0w meant just for you: Mac and Windows. You guys can get in on the “3.1.2 loophole” too using this special version. Don’t try this if you have a newer iPod Touch 2G or if you’re not completely sure what version you have. And of course don’t try it for 3GS or ipt3G either.

Keep in mind if you’re an ultrasn0w, yellowsn0w, or blacksn0w user, don’t go anywhere near it. Meanwhile other users of iPhone 2G, iPhone 3G (not unlockers), iPod 1G, and iPod 2G older version can go ahead and give the new software a shot. For everyone else not mentioned, it is best to wait for official support in the tools for safety.

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