Doorbell release tool not working

[LacieL90]

Cannot get doorbell off of mount for charging. Using tool as directed, but it’s not budging. 

[theman1]

You push it in the gap and it will release the nub.

[DK1123]

NO, it does not release from the mount. ANOTHER WORTHLESS PIECE OF CRAP FROM GOOGLE/NEST.

[theman1]

Take a video of yourself trying to release please.