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Iphone 4 downgrade from 4.1 to 4.0.1

yogi bear

yogi bear

macrumors newbie
Original poster
Hi guys just a quick 1 tryin to downgrade iphone 4 firmware from 4.1 to 4.0.1 but i tunes keeps sayin firmware file is incompatible any reason for this or how to fix? trying to jailbreak for first time using jailbreakme thanks in advance
 
yogi bear said:
Hi guys just a quick 1 tryin to downgrade iphone 4 firmware from 4.1 to 4.0.1 but i tunes keeps sayin firmware file is incompatible any reason for this or how to fix? trying to jailbreak for first time using jailbreakme thanks in advance
Click to expand...

It requires that you saved hashes for firmware 4.0.1, if you didn't no downgrade.

Also, since you updated to 4.1, you also have the new unlockable baseband which cannot be downgraded (unless you used TU to upgrade)

So, I guess you aren't "smarter than the average bear". 😀 Sorry, couldn't resist, no harm intended.
 
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