My Iphone 7 keeps shutting down and asking for my passcode

[Anonymous]

This morning I have opened my iphone 7 to use, as I keep my phone locked with a passcode. after about 3 minutes it shuts down and goes back to the passcode page. when I put in my passcode it has closed the app I was working on and gone back to the home page. 

I has been doing this now for 2 hours!

Any tips

Nothing has happened to it in the night? and it was working correctly yesterday.

many thanks Trudy 

[adamtemp64]

https://support.apple.com/en-gb/HT204060 and settings > Display and Brightness> how long is set

[MI5]

How strange. Another person with the same issue on their 6s thus morning too.

[Cleoriff]

A bit weird that this is similar to the one posted earlier? https://community.o2.co.uk/t5/Apple-iOS-Devices-iPhone-iPad/My-iPhone-6s-keeps-cutting-out-and-askin...

[MI5]

Yeah, that’s the one.

[adamtemp64]

All I can say my 8 is working as expected today usual passcode request (fingerprint) after auto screen lock of 30 seconds app still open . Back to the cricket.

[adamtemp64]

These are my settings 

[Anonymous]

Help

I too have exact same issue. Keeps closing down and asking for passcode.

I have an iphone 7 with up to date ios.

Now in the middle of doing a full reset as nothing else worked so far!

John

[adamtemp64]

This is very strange What version of ios is this happening on ?

[MI5]

This is beginning to sound like an iCloud verification issue.