With the new iPhone OS 3.0 available for download for all mobile users, sorry iPhone users, you must be wondering how do I upgrade my old iPhone OS to the new feature rick iPhone OS 3.0. Here is how you do it. Please note that, you should proceed with this only if you are ok with screwing around with your pricey iPhone. I do not take the responsibility if your phone screws your happiness.
The Steps
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Backup your iPhone using iTunes first . Would be useful just in case you wish to restore data. -
This process will format your phone memory . Make sure to save all important stuff and make a not of apps installed. -
You will need a Pwned version of the iPhone firmware before you restore to the 3.0 firmware. -
Get iTunes 8.2 . Previous versions wont work !Grab the Pwned version of the 2.2.1 software here as long as it lasts ! If you are already on 2.2.1 with a Pwned phone , you can skip this step. -
Its a 250MB file approx. -
Open itunes and connect your phone in DFU mode - just hold both home and power button when booting up -
Inside itunes, after the phone is connected, lookout of the RESTORE button, don't click it -
Use Shift + RESTORE and look out for the firmware file you downloaded before. -
Restore should begin and should take some time -
Your iphone will be restored to iPhone 2.2.1 and should still remain activated. -
Now connect the phone again and now you should see UPDATE Button -
Don't click on UPDATE , click SHIFT +UPDATE you will be prompted for a file - Grab the iPhone 3.0 Firmware - ~250 MB if all goes well , you should have iPhone 3.0 and your phone should remain unlocked !Thanks Varun for sending this over!
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