The iPhone’s latest 3.0 firmware is here. And as promised, it brings tons of new features (most importantly cut, copy & paste) to the iPhone. This is a guide to upgrade and unlock your iPhone 2G to firmware 3.0 using redsn0w. redsn0w is developed by the iPhone dev team and succeeds the good old QuickPwn. This guide can also be used to jailbreak your iPod touch and iPhone 3G. No support for iPhone 3G S yet.
The current version of redsn0w has known issues with mac OS X on power PC based systems. Use it on an intel based mac until the dev team addresses them.
For easy access, download the following in a single folder.
a. iPhone firmware 3.0 – iPhone 2G | iPhone 3G – approx 230 MB
b. redsn0w (torrent) Windows | Mac – approx 10 MB
c. Bootloader version 3.9 – 128 KB
d. Bootloader version 4.6 – 128 KB
e. iTunes 8.2 – approx 70 MB
Remember to sync your iPhone with iTunes before you start with the following process. This will create a backup of you iPhone which you can used to get your settings and contacts back on your iPhone once it is upgraded. Alternatively, you can right click on your iPhone’s name in iTunes’ left nav and select “Backup”.
Also, remember that the following process will delete any apps you would have installed from Installer or Cydia. You will have to install them again.
Step 1. Restore your iPhone to firmware 3.0 using iTunes. On the summary tab, hold shift (OPTION key for Mac) and click on Restore. Browse and select the iPhone firmware 3.0 file downloaded above. iTunes will restore the phone using this firmware. This step will take approx 10 – 15 minutes.
Step 2. Unzip the downloaded file and launch redsn0w:
Step 3. Click on the browse button and select the firmware 3.0 file you downloaded above:
Step 4. Once redsn0w identifies the IPSW file, click on next:
Step 5. Select the 2 checkboxes to install Cydia and unlock your iPhone. Selecting only Cydia will just jailbreak your iPhone (won’t unlock it):
Step 6. Browse and select the bootloader 3.9 and 4.6 files you downloaded above:
Step 7. Connect your iPhone to your computer and then switch it off. Free up both your hands and buckle up to press a combination of buttons on it to put it in the DFU mode:
Step 8. Follow the onscreen instructions carefully to put your iPhone in DFU mode. In case you fail, you can try again:
Step 9. Once you successfully put it in DFU mode, redsn0w will do its job. Sit back and relax:
Step 10. Click finish when done:
After this step, your iPhone will restart. It will now be on firmware 3.0 and unlocked. Restore from the backup in iTunes and you will have all your settings and emails/sms/notes restored. You will also have Cydia to install super cool 3rd party apps.
Enjoy some of these awesome new features in firmware 3.0:
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