Downgrade iPhone 4 IOS to iOS 7.1.2 9.2 s

Downgrade iPhone 4 IOS to iOS 7.1.2 9.2 s

My iPhone 4S has a sort of short circuit.

Battery in half a day.

I can't stop (stand-alone).

I can only turn off when it is connected to a power supply.

When it is turned off and I unplug the power supply, so it runs automatically.

This is the reason why I want to go back to my iPhone 4 with iOS 7.1.2.

When I want to restore my iPhone 4 from the backup of the iPhone 4S

I get the error message that the backup cannot be restored

because the software on the iPhone 4 is not up-to-date.

This is the reason why I need to downgrade to iOS 9.2 on iOS on iPhone 4S 7.1.2.

Can someone tell me what I need to do

iOS downgrade 9.2 to iOS 7.1.2 on iPhone 4S?

Any help is appreciated!

As has always been the case, you cannot go back to an older version of iOS to all.

Sorry,

Tags: iPhone

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