I have a Tapp D210, earlier today I changed Internet provider. Since then the doorbell light has been flashing red. Before today it was working perfectly.

I have tried to reset it by holding the button for up to 30 seconds but it doesn't seem to be doing anything. 

The WiFi is not picking it up, the app isn't finding it, and I believe Ive tried all trouble shooting steps but it's still the same. 

Currently I have it charging and even with it charging the reset isn't working (using button 8 as described) It's probably a simple fix but I'm at a loss as to what I should do. 

Does anyone have advice on what I should do or what I'm doing wrong?