I went to the apple store today to have a new battery installed on my iPhone 6 (i0s 11.1). The tech ran a test and said it was not the battery so he wiped my phone and reinstalled iOS. He ran another test and it showed it had a bad battery. By the time I got home, an hours drive, the phone had completely synced with iCloud. I had backed up both to iCould and my MacBook Pro before I went to the Apple Store. When I get home the phone will not sync to iTunes. It will just make a ding noise over and over. I installed the new iOS 11.1 yesterday and I'm not failure with it. Could anyone help me with this please?