It could need a firmware update but if you want Netflix the usual cheap players are the Roku or Amazon Fire sticks.
Try the Support at https://www.lg.com/pa_en/video/lg-BP350 but most of us won't keep failures around like this.
Bought a LG BP350 blu-ray dvd player from large retail store on Dec 2, 2019, just to get NETFLIX on my TV. After setup got following message on the TV when I select NETFLIX on the player:
'Netflix will no longer be available on this device after December 1st, 2019"
What is going on? I can understand this happening on a very old player but on a player just bought from a major retailer who is currently selling them? Of note, the box does state NETFLIX as a feature.