How to downgrade Iphone 4s ios8.1.3 to ios 7.1.2 ???

I heave problems with some apps in my iphone 4s. My car audio (Pioneer) no more understand my Iphone with ios 8.... before with ios 7.1.2 be OK

iPhone 4S, iOS 8.1.3

Posted on Jan 28, 2015 12:20 PM

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8 replies

Jan 28, 2015 2:35 PM in response to ORnet4S

PIONEER AVH-X7500BT

For AppRadio users and users of Pioneer DVD receiver and navigation receiver models with AppRadio Mode, Pioneer has completed its compatibility evaluation of iOS 8 with AppRadio Mode. Please see below for important information:

iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5, iPhone 4s and iPod touch (5th generation) users:

The following AppRadio Mode applications are currently not compatible with iOS 8 due to a stability issue that results when using the in-app keyboard. To maintain AppRadio Mode use of these apps please avoid using the in-app keyboard or continue using iOS 7.1.2 with your iPhone or iPod touch.

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How to downgrade Iphone 4s ios8.1.3 to ios 7.1.2 ???

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