Published on 28 Jan 2014 | over 4 years ago
Link to all the software:
Check your iPhone's serial number:
How to downgrade your original iPhone back to iOS 1.0 (from 3.1.3).
If at any point you want to back out and revert back to a working iOS 3.1.3 (using a recent iTunes version), just put your iPhone in Recovery Mode and restore the 3.1.3 IPSW file.
You might also want to close iTunesHelper for this.
I hope this video was helpful and should you have any questions left, you can always contact me on my Twitter:
Thanks for watching and enjoy!
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