My phone keeps shutting off randomly and I need help updating it

You may have a poor battery condition which cannot provide sufficient power for peak performance. What is the Battery Health of your iPhone? Open Settings ➔ Battery ➔ Battery Health and let us know which percentage you see for Maximum Capacity. Also note what is written under Peak Performance. If your battery's Maximum Capacity shows a value of 80% or less, then it has gone through its lifecycle and therefore should be replaced, according to Apple.

Axel F.

Pauly2003 Said:

"why Does my phone keep shutting off randomly"

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Is it Restarting?



Being Stuck in a Boot Loop:

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