Screen keeps getting black

I did one update on my pro that was suggested by apple but since than my screen keeps getting black at times.
what does it mean?
also, I'm being asked to do another update from apple....is it ok If I don't update???
thanks,
M.

Sounds like your logic board. Software troubleshooting steps after hard reset is restore.  If that doesn't work it needs to be repaired.
iTunes: Backing up, updating, and restoring iOS software

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