Update iOS 11 but stuck on Preparing Update, Update Requested or stuck on Verifying Update. Here is the real fix for you. https://www.tenorshare.com/ios-11/top-4-ways-to-fix-iphone-stuck-on-verifying-update-during-ios-11-update.html

1. Download ReiBoot and install it in PC/Mac.
https://www.tenorshare.com/products/reiboot.html
2. Run the program, Select "Fix all iOS Stuck" , "Fix all iOS 11 Stuck" , Download Firmware , Begin "Repair".
3. The repair process will take about a few minutes. Wait patiently.
4. Everything will be fine now. You will see your phone go back to normal.



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