Dual Boot iOS 6 & iOS 9 on an iPhone!

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How To Install iOS 6 & Dual Boot on an iPhone! CoolBooter Allows You To Downgrade Back To iOS 6 on Certain iPhone & iPad Models.

Jailbreak iOS 10: https://youtu.be/9Dgv2NW99Ic
iOS 10 vs iOS 6 Speed Test: https://youtu.be/gf_Bb6ygwKc

CoolBooter Twitter: https://twitter.com/coolbooter

25 Comments on Dual Boot iOS 6 & iOS 9 on an iPhone!

  1. Is it possible to adjust the partitions?

    I'm using a iPhone 4, downgrading when there's still 6GB free space. After the downgrade to iOS 6.1.2(w/ JB), I found out there's only about 1.5GB for this partition and almost 900MB were used(I didn't even install any apps). Even I use iCleaner, the 900MB still couldn't be removed.

  2. Ok, um wut do?
    I did this exact process with my iPhone 4 (Except when it said to lock your device I locked, and turned my screen back on) and it shut down and WILL NOT boot up anymore. it had 90% battery when I started, and no cords plugged in. Is it bricked?

  3. My iphone 4 gets in the dfu mode after i have setup the ios 6.1.2 (coolbooter beta 5) i don't know what i can do that it doesn't gets in the dfu mode again without any reason (sorry for my bad english but i can't speak so good english)

  4. DO NOT TRY RESTARTING WHILE GOING FROM 6 BACK TO 8/9 IF YOU ARE CONNECTED TO ITUNES.
    I did this and got stuck in DFU mode and had to restore my phone to ios 10 and lose my jailbreak.

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