Hours ago, Apple released iPhone OS 3.1.3 and as usual in this case, I recommended that you do not update if you care about your jailbreak or unlock.

Turns out we have some good news from the Dev Team. It is currently possible to jailbreak the iPhone 2G, iPhone 3G, and iPod Touch 1G running OS 3.1.3.

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.

What does that mean? It means that if you have an iPod Touch 1G, an iPhone 2G or an iPhone 3G, you can use RedSn0w to jailbreak your iPhone 3.1.3. If you care about ever unlocking your iPhone, DO NOT do this. Just wait and stay away from the update.

Here is what you have to do to jailbreak your iPod Touch 1G, iPhone 2G or 3G. First, update to the latest 3.1.3 firmware from iTunes, then simply follow the directions in my RedSn0w tutorial. Download the latest version of RedSn0w and when asked to choose for a firmware, make sure to choose 3.1.2.

This method reportedly works for jailbreaking the 3 devices mentioned above. It doesn’t work for the iPhone 3GS and for other iPod Touches.

The Dev Team is currently working on it. I will update you as soon as we get more info. Make sure to check the jailbreak section for up-to-date information about jailbreaking.

UPDATE: This post is outdated. Check out our jailbreak section for the latest information about iPhone jailbreaks.