Phone Shuts Down and does not power up until battery is taken out and reinserted..

My Note 4 (SM-N910T) has recently had a lot of problems after the MM update - freezes and does random restarts. Now recently it does not do a normal restart - the phone just shuts down and the restart does not work - unless the battery is taken out and I keep the power button pressed for a long time and then again put in the battery and try restarting.

Does anybody else have the same problem and any suggestions.