Where do I look on my Samsung Galaxy Note Pro 12.2, Model No. SM-P900 for the latest updates?

[AC Question]

My Samsung Galaxy Note Pro 12.2, Model No. SM-P900 as of yesterday will not stay connected to our home Wi-Fi. It will turn on for a few seconds then disconnect for a few seconds and then will turn on again. I am thinking the cause could be a recent update. Can anyone help me with this please? I am not able to get on the internet (Wi-Fi). Thanking you in advance.

 

[Rukbat]

The update would be to the Android system (there's no "wifi app). That would mean reflashing the previous version of the system (you can't uninstall system updates - they become part of the system).