Iphone8+ Is frozen reboot not working

See if this link helps...

If your iPhone won't turn on or is frozen - Apple Support

1mstuck Said:

"Iphone8+ Is frozen reboot not working: Iphone8+ Is frozen and I keep accidentally calling 999 when following reboot instructions"

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Troubleshooting a Frozen Screen:

Try the Tips at these Apple Support Links:

• If the Screen isn’t Working on your iPhone or iPad - Apple Support



• If your iPhone is Stuck on the Apple Logo - Apple Support

• If you Need More Help - iPhone - Apple Support