iPhone 4S won't turn on after Battery removal and reinstallation
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My power and volume buttons were getting loose so I had to open my phone up and tighten those screws, I had to remove the battery and the shield to get access to it. After putting it back together it wont turn on! I did double check every flex cable/connector
However the screw holder that would screw in to the top part of the plate that covers the battery & antenna shield has fallen out, and I am wondering if that could be the possible cause of my phone not booting. If not, what could be?
maybe you broke the battery connector in the process which is difficult to fix. but before jumping to conclusions hard reset the iphone which happens by holding and keeping on pressing both the sleep button and the home button at once until the apple logo shows up.