My iphone 5c had a problem charging because it says "accessory not used" or some crap, i know its not the usb chord problem because i had multiple new ones. Its currently 7.0.4 version and i think if i update it will solve my charging issue. I have some storage in the cloud but some cant fit, question is will updating delete my contacts, messages?
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If i update my iphone to 9.2.1 will it delete everything?