M30S Vibrate without any reason.

[SATTISRIRAM]

My mobile Samsung Galaxy M30s Vibrate without any reason for 2 seconds. Even the smart alert was in off state. 

[FallOut007]

tried reboot?

[SATTISRIRAM]

yes. for the past days I have tried various methods. No use.

[aliwaqasahmed]

do u use Vodafone network? if yes you can expect this vibration often in a day because vodafone network fluctuates causing temporary loss of signals.

[talk2venky]

is it so?? im using Vodafone and getting these random vibrations. But what is the reason for vibrations??

[Snjy]

I think you are on Notification Reminders

[SATTISRIRAM]

I don't use Vodafone. even notification reminders are also off state.

[aliwaqasahmed]

yes vodafone loses the grip of its network everyday, that is where u can see an exclaimation notifiction on top of your screen till the time there is no network. I use Vodafone i was observing this so whenever there is no network it vibrates to inform the user maybe.

[AMPK]

This only for Vodafone is it I don't get it in Airtel.

[SATTISRIRAM]

I am using Jio network and my notification reminder is off and smart alert is off. Still I get vibration.