Wyze Contact sensor cannot be added to APP

[WildBill]

If you try to add the sensor, how many times does the red light blink? If 5, the sensor is dead…lost the MAC in memory and won’t connect. Here is one post on the issue:

Forgotten Sensors (dead batteries)

I recently noticed a bunch of my door break sensors have gone offline. Upon further inspection it looks like the batteries died. I figured no big deal I will replace said battery and go about my day. This has not been the case at all. The sensors appear to have lost their pairing with the bridges I configured them for. Now I need to go around delete all of these sensors, re-add them and reconfigure any rules around them. Has anyone else noticed this kind of behavior? Side note, this is al…

Another:

Wyze Sense sensors will not connect to bridge

The instructions say to press the reset using the provided pin and wait for the red light to flash 3 times. When I do this the light flashes 5 times but the sensor never connects. I am trying it only a few feet away from the camera.