Fix iOS 11/iOS 12 Boot Loop on iPhone without Data Loss
Some problems come along with every major upgrade of iOS, such as reboot loop. Unsurprisingly, many iPhone users come across random restart on iPhone after iOS 12 or iOS 11 update. On Apple developer forums, many iPhone users with Vodafone are faced with iOS 12/11 reboot loop.
"I've also seen issues with Vodafone (UK) and iOS11 resulting in slow running & freezing of the phone and getting stuck in a reboot loop. This is on an iPhone 6S dedicated to testing upgraded both via a OTA from 10.3 and a restore via itunes."
For a specific reason or not, your iPhone can get stuck on reboot loop after iOS 11 and iOS 12 update. What really matters is how to fix iPhone boot loops or crashes without data loss. Read on and get this issue sorted.
Way 1. Hard Reset iPhone
This is versatile solution to all iPhone problems: crash, freeze, apple logo, random restart, etc. It is easy but sometime indeed a feasible solution. Press and hold both the Sleep/Wake and Home (Volume Down button for iPhone 7 and iPhone 8/X) buttons for at least 10 seconds, until you see the Apple logo.
Way 2. Repair iOS System to Fix iPhone Stuck on Reboot Loop
This is another way of fixing iPhone bootloop after iOS 11/12 update. It is similar with iTunes restore but the basic difference is all data keep fine after system recovery. Tenorshare ReiBoot from Tenorshare is committed to fix all iOS stuck by repairing iOS system without data loss. It can fix most system crashes/errors/stuck, including reboot loop, recovery mode, DFU mode, black screen, apple logo, iTunes logo screen, system crash, and so on.
Step 1. Start Tenorshare ReiBoot and connect your iPhone which reboot randomly or keeps restarting to computer. Choose "Fix All iOS Stuck" and then "Fix Now (All iOS 11 Stuck)".
Step 2. As your device is not in working status, you will have to put it into Recovery Mode (or DFU Mode) to make Tenorshare ReiBoot detect it.
Step 3. Once Tenorshare ReiBoot detects your iPhone, it will display the matching firmware version for downloading.
Step 4. Click Download to download the ipsw file. Tenorshare ReiBoot will start repairing operating system when the firmware file is downloaded successfully. It takes you 10 minutes the whole process.
After system recovery, your device will get back to normal and all data kept. It will never get stuck in boot loop or Apple logo stuck again. Hope the two methods did the trick to fix iPhone stuck on boot loop after iOS 11/iOS 12 update.