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i'm really sorry,i have another problem with my iphone,when

Apr 19, 2015 6:31AM PDT

i'm really sorry,i have another problem with my iphone,when i go to my app and want to do something in there,the screen flashes black and it takes me out of app then i have to go back to my app again,its annoying and it happens all the time,doesn't matter if i use Safari and go to pages or go to apps which are already on my iphone

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That facebook font size didn't sound like a problem.
Apr 19, 2015 6:34AM PDT

Just learning that app's settings.

But one of the interesting things about iOS is that when you exit an app it's still there. I've lost track of folk that didn't know that. Reboot the phone and get a clean start if you don't want to deal with apps in the background.
Bob

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:)))
Apr 19, 2015 7:13AM PDT

ok,thank you dear,i do reboot my iphone all the time,i do force close my apps but the problem is still going on,my iphone is a second handed,it has a bad battery which doesn't last all day after a complete charge and when iphone is being used,i will definetly exchange my old battery to a newer as soon as i can,my iphone is 4,i wanted you to know,what could be the real main problem causing these crashes? what shall i do next? Will factory reset help on fixing the problems?

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About the battery.
Apr 19, 2015 9:23AM PDT

Try one of those battery case things. A friend did that rather than change the battery.

My iPhone friends don't tell me of a lot of crashes. Maybe this one needs to be exchanged for an Apple refurb?
Bob

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????
Apr 19, 2015 9:53AM PDT

ok,thank you,i will think about it Happy))