@David-TP thankyou sir for your replies.

@David-TP thankyou so much for taking your time and explaining me the above points in great depth. please answer few more- Sir, where can I check the latest beta firmware version for my Deco x20...

I newly purchased x20 deco. I have got few questions , please answer all of them. Q- The version the Deco x20 came with is V3.8 (IN). , my location is India. I am unable to find the Deco x20 V3.8...