MY IPHONE STUCK

Try a Forced Restart on the phone. Follow the instructions very carefully, as this is a bit tricky. You may need to repeat this several times.

Force restart iPhone - Apple Support

There are only 2 possible results when you perform a Forced Restart:

1) The phone returns to normal operation

or.....

2) There is a problem with the phone that will need attention at the Apple Store (make an appointment) or at an authorized Apple Service shop

Find Locations

kiasha81 Said:

"MY IPHONE STUCK: My iphone is stuck on the hello screen"

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Being Stuck in a Boot Loop:

Your iPhone might be stuck in a boot loop. This typically happens when you unsuccessfully download something or an update install stalls while in the process.  So, refer to my User Tip: How to Fix an iPhone in a Boot Loop - Apple Support