I recently purchased a Reolink Battery Doorbell and configured it to a Wi-Fi connection. I then had my home broadband updated and the engineer removed the old Wi-Fi router. I need to factory reset the doorbell to connect it to my new Wi-Fi router. 
I found this article - https://support.reolink.com/hc/en-us/articles/14182908782361-How-to-Reset-Doorbell-Cameras/ but pushing the power button three times with the device on (as specified on this article) does not work at all.
Anyone experienced this issue and could provide any assistance?

I have a doorbell, but it’s infuriating that the notification tone is the same for both motion and a visitor. Can this be looked at to see if it can be implemented or is this a function not currently available in the UK?