I was trying to Jailbreak an iPhone 2G, iPod Touch using redsn0w 0.9 and interestingly enough, had the same issue “stuck at Waiting to reboot” message in redsn0w in both instances. I tried both Mac OS X Leopard and Win XP with no avail.
UPDATE : I faced the same issue with iPhone 3G and 3GS too! Fortunately enough, it has a simple solution.
Solution : When you see the ‘Waiting for reboot’ message in redsn0w, unplug the USB cable from the iPhone and plug it back in! Weird but it worked …

UPDATE : The following guide holds good only for iPhone 3GS 3.0 firmware. For 3.0.1 use redsn0w guide instead!
Geohot has done it again! He gave us the first jailbreak for iPhone 3GS and now, we have a much more efficient iPhone 3GS unlock – purplesn0w. Seriously, all the sn0w versions are confusing but well, that is their game!
For now, the iPhone 3GS should be activated using an official carrier before purplesn0w is installed on your iPhone 3GS. (Hacktivation for other carriers to follow soon)
Why is this unlock (purplesn0w) more reliable …

The title says it all! Whether you have a first generation iPod Touch or a second generation – upgrading to 3.0 firmware is recommended to avail all the new features Apple has to offer – Spotlight Search, Cut – Copy – Paste, and a lot more!

Step 1) Choose the right firmware for your iPod touch from the following links
iPod Touch First Generation
Links being prepared….
iPod Touch Second Generation (2G)
iPod2_1_3.0_7A341_Restore_.ipsw.001
iPod2_1_3.0_7A341_Restore_.ipsw.002
Step 2) Download HJSplit and join the files downloaded in step 1. Save the resulting .ipsw file on the desktop.
Step 3) Upgrade iTunes …

Geohot first released the 3GS Jailbreak solution and the Dev Team, who initially planned on releasing their version of the Jailbreak after Apple released iPhone 3.1 firmware had no other choice but to release it immediately! Dev Team’s redsn0w handles the jailbreak for your iPhone 3GS more like the 3G and 2G variations.

Download redsn0w using the following links :
redsn0w for Mac OS X
redsn0w for Windows
redsn0w for Linux (introducing!)
Click here for a simple and quick guide to get you up and running with this revolutionary iPhone 3GS jailbreak. Don’t hesitate …

Themes support is one if the major features that jailbreaking your iPhone supports. Winterboard enables you to choose an array of beautifully designed themes.
Geohot’s jailbreak for iPhone 3GS was not playing well with Winterboard. Cydia’s Saurik released a revised mobilesubstrate which enables themes support the way we are all used to!
Launch Cydia and Click in refresh. You will find mobilesubstrate. Install it, reboot your iPhone and choose a lovely theme!

Both recovery and DFU modes are often confusing which just adds to the frustration when accidentally put into either of these modes. You don’t have to restore completely in iTunes. That takes up a lot of time (around 20 minutes and if you have data, it may be longer to get it all back up and running). You can give the following combinations a shot and I have tested them both on iPhone 3.0.
DFU Mode :

Steps to recover from DFU mode :

Connect your iPhone to your computer.
Hold down the …

So you used purplera1n and jailbroke your iPhone 3GS but you still see the emergency screen huh? We just have to hacktivate your iPhone and then we can unlock your iPhone using ultrasn0w!
Lets get started :
1) Make sure you used purplera1n and jailbroke your iPhone 3GS. If you see the Emergency calls screen, you may follow the next few steps.
2) Download this lockdownd file.
3) Download iPhoneBroswer for Windows. You may try PhoneView for your Mac.
4) Launch iPhoneBrowser and navigate to usr/libexec folder as shown in the picture below. (If you …

UPDATE : iPhone 3GS has a different security feature which disables it from using any other firmware rather than the latest available. So, if you still need Unlock and Jailbreak, custom firmware (look in categories) is the only option we have. The following article is not recommended anymore. Thank you.
Geohot rules yet again! He was the one to have unlocked the iPhone first generation phone back in 2007 and now, he is back with more! This time it is iPhone 3GS that is unlocked and jailbroken by the hacking maestro …

This fact cannot stressed enough! Every time people are warned about updates from Apple disabling Jailbreak / Unlock , some people still end up accidentally updating via iTunes. Why take a chance while you can get the new iPhone firmware goodness with a few days wait?
Launch iTunes, Click on Preferences – > Under General Tab Uncheck ‘Check for new software updates automatically‘. Wait for a confirmed jailbreak and unlock for the newly released firmware and then update.

Apple gifted all iPhone 3GS owners with an exploit so that we can jailbreak and unlock our iPhone 3GS to our heart’s content. But here is the catch! The exploits WILL be closed in the next firmware upgrade which is due any minute now.
So here is the thing : PLEASE DO NOT UPGRADE TO iPHONE 3.1 before performing the following procedure (if you want to unlock/jailbreak that is!). Dev Team is waiting for the next release (iPhone 3.1) so that the Apple will not close the jailbreak exploit. Jailbreak for …