I thought of using the jiofi dongle that was lying for a very long time but i had forgotten the wifi password. I remembered that there is option to connect using wps with just one click and then realized that m30s doesnt have wps option in settings.Had to connect my dad's phone that has wps option and then scan the password using password share. Disappointed!
Android new releases scrapped the WPS option .. WPS feature is dead after android oreo
Jiofi has a reset bottom in its device , press it using a niddle and look inside sticker covered by battery in jiofi device , there you will get the factory settings of login and wifi auth
