I have a 4s that was dropped into water about a year ago. I dried it out and worked perfect till now. Now it wont stay turned on without being plugged into the mains charger so cant restore as it wont power up through usb. When it does turn on there is no signal and wifi is greyed out. When plugged in, if left alone it will restart in a loop. I can open apps but music app will not play sound. Any hope for it ? Thanks in advance
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