Easiest Way to Downgrade to 3.1.2 From Firmware 3.1.3
Easiest Way to Jailbreak iPhone 2G, 3G, 3Gs Firmware 3.1.3 with Sn0wbreeze v1.4
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Jan 30th
Turn your iPhone, iPod Touch into iPad
Once I get more info about 3.2 I'll put it up here. I only have a iPod Touch to test things out since my iPhone died...so if anyone wants to help me experiment hit me up
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OCT 11th
blackra1n.com
3.1.2 jailbreak for ALL devices
If you happy on 3.0 though dont **** with this just yet
UPDATE:
Comfirmed working 3.1.2 on 3G - Factory unlocked phone
3g users that have 3.1 NO jailbreak or Custom IPSW:
1: Backup phone on itunes(make sure you have the lastest version of itunes installed)
2: Hit update(if you want to keep your music/videos/settings/address book etc) OR Restore(if you want to start with a clean slate). It will tell you the latest is 3.1.2.
3: After the update is complete, BACKUP YOUR PHONE AGAIN!!!!(Just incase you get stuck in recovery mode, you will be able to restore from this backup)
4: Close itunes. (also check task manager for "Ituneshelper.exe", kill it)
5: Get blackrain, open, click make it rain. ( will will say waiting for iphone.(On windows 7 it will freeze for a bit, your phone should then go into recovery mode and blackrain should then say 'running'.
6: Now, from experience it hangs here...The problem is that your usb doesn't recognize the phone because blackrain is trying to access it before the computer sees it!!! Kill blackrain, unhook phone, hold home and sleep button then release when phone goes black, this should kick the phone on. After phone reboots, start blackrain again, hook up phone, hit make it rain again. Should work now.
7: You should see George and blackrain should say done, wait for reboot. DON'T DO ANYTHING WITH THE PHONE!!! LEAVE IT ALONE!!! It should reboot by itself, it might take a few minutes!!!
8: Phone should be rebooted now with blackrain on springboard.
Note: It would help minus the 'itunes opening when phone is in recovery mode' issue, if while the phone is connected on itunes make sure the 'automatically sync with when phone is connected', is unchecked.
For 3gs 3.1 NOT jailbroken or Custom IPSW:
Follow every step except for step 6. From experience jailbreaking 7 3gs so far, there is no need to kill blackrain or itunes.
Edit 1st Oct 09
Got this from xsellize. DONT UPGRADE IF YOURE ON A 3GS or 3G iPod Touch!!! Use these custom firmwares if you want to upgrade to 3.1
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IF YOU ARE UNLOCKED AND WANT TO HAVE MMS ON 3.1 ON SOMETHING OTHER THAN AT&T THEN DONT UPGRADE YET!!! LOTTA **** AINT COMPATIBLE WITH 3.1 YET!

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2G (Unlocked Activated with Cydia & 768MB partition)
2G (Unlocked Unctivated with Cydia & 768MB partition) For official carrier users who want PUSH
3G (Activated with Cydia & 768MB partition)
3G (Unactivated with Cydia & 768MB partition) For official carrier users who want PUSH
3G (Activated with Cydia & 1GB partition)
3G (Unactivated with Cydia & 1GB partition) For official carrier users who want PUSH
1G Ipod Touch (Default Partition Size)
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The 3G custom firmwares will not update the baseband. STOP ASKING!!!
TO USE: If your phone is currently pwned, just hold SHIFT and Click Restore and select custom fw. If not currently pwned, restore with a 3.0 or 3.0.1 firmware and use redsnow to JB. AFterwards, repeat first step.
DIFFERENT PARTITION SIZES: ONLY DIFFERENCE IS THE SIZE SO YOU CAN INSTALL MORE APPS ON IT BUT LOSE STORAGE FOR IPHONE USAGE.
ACTIVATED: For people who are not on official carriers and cannot activate using itunes.
UNACTIVATED: For people who are on official networks that can activate using itunes
2G iphone 768mb Activated Unlocked:
http://rapidshare.com/files/28065181...cked.part1.rar
http://rapidshare.com/files/28066104...cked.part2.rar
http://www.megaupload.com/?d=1M25NBG6
2G iphone 768mb Unactivated Unlocked:
http://rapidshare.com/files/28067532...lock.part1.rar
http://rapidshare.com/files/28066104...lock.part2.rar
3G iphone 768mb Activated:
http://rapidshare.com/files/28068524...ated.part1.rar
http://rapidshare.com/files/28066104...ated.part2.rar
3G iPhone 768MB Unactivated:
http://rapidshare.com/files/28072641...ated.part1.rar
http://rapidshare.com/files/28072985...ated.part2.rar
3G iPhone 1GB Activated:
http://rapidshare.com/files/28074453...ated.part1.rar
http://rapidshare.com/files/28075101...ated.part2.rar
3G Iphone 1GB Unactivated:
http://rapidshare.com/files/28076041...ated.part1.rar
http://rapidshare.com/files/28075102...ated.part2.rar
1G Ipod Touch (Default Partition Size)
http://www.4shared.com/file/13322181...torepart1.html
http://www.4shared.com/file/13322529...torepart2.html
http://www.4shared.com/file/13322654...torepart3.html
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So there is a new MMS update for AT&T
How do you use it? What if youre jailbroken???
http://rottapp.com/mms.html < theres your guide, if you cant figure it out youre retarded and throw your iPhone into a ditch.
Info about Redsn0w:
Redsn0w is similar to ZiPhone and Quickpwn if you run across any old guides...DO NOT USE THESE ANYMORE, only redsn0w.
REDSN0W PROVIDES SIMILAR FUNCTIONALITY TO QUICKPWN.
If you want to build custom firmware files with more flexibility it is suggested that you use ‘PwnageTool’ on Mac OS X.
UltraSn0w has been released via APT (cydia and icy), you can use that to unlock your iPhone.
Yellowsn0w has been replaced with Ultrasn0w which has been released via APT (this means you will be able to get it via Cydia or Icy).
Please read all parts of this post before downloading and using these tools.
Read items 1, 2 and 3 again and again.
At the bottom of this post are the bittorrent files for the latest version of redsn0w.
This app is suitable for the 3.0 release
redsn0w WILL work for all iPhones (the original type), Original iPod touch, iPod touch 2G and the iPhone 3G (and the iPhone 3GS).
But not currently for iPod touch 2,1...(3rd gen iPod Touch)
Now onwards to Cydia...
You dont need to have a ton of repo's installed. Matter of fact all you need is...
http://repo.sinfuliphone.com/
http://fishbone.ge
http://cydia.iphoneil.net
http://apt.dmytro.me
Make sure you copy these verbatim while adding the sources or they wont work. NEVER install the All sources because itll clutter the fuck outta your Cydia app and most of the repo's in it youll have no use for. Just because there is a lot of shit to download doesnt mean its for you. If you dont know what the fuck youre doing DONT DO IT BITCH!