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Iphone4 error message

Trev22111

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Jul 11, 2011
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I am receiving an error message that says "this accessory is not optimized for this iphone". And below it says,"you may experience a decrease in cellular strength". Can anyone tell me what is wrong and or tell my how to fix it? Thanks.
 

snead_c

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Apr 14, 2011
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I have seen this happen using after market power devices. Some seem to not really make a difference and others are seriously bad. Seems to be result of slight power conversion differences. If using after market device try returning it or experimenting to monitor impact of warning. My first experience was with a very cheap car connector from Amazon that costs more to return mail than I paid. Trashed !
 

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