Random reboot after software update on my C9 Pro

[Android Central Question]

After excepting a system update on my C9 Pro a few weeks ago, now the phone keep on rebooting at times. And if i connect the cable to charge it will switch off the phone. No matter how many time you power it on it will power it of as long as the cable are connected. Once unplugged then it can power on but then the random reboots still continues.

 

[jasrij]

after software update now my C9 Pro details as below:
Android Version
8.0.0

Samsung Experience version
9.0

Baseband version
C900FDDU1CRIB