I’ve changed my phone / phone number, do I need to reconfigure two-factor authentication for my TradingView account

If you’ve changed your mobile device, you’ll need to re-configure two-factor authentication on your TradingView account. 

First, login to TradingView by either using a backup code or from the device where you have an active session, disable two-factor authentication, and then re-enable it using the authenticator app or SMS verification from your new phone.

You can read more about how to set up two-factor authentication here.