Where is documentation on CURRENT version glassbreak sensor "clap" test and sensitivity switch / battery access?

Frustrating. New owner of system. Nothing happens when I clap hands right in front of the Glassbreak sensor immediately after setting Test Mode via keypad then pressing sensor button. No part of the "clap test" instruction at https://simplisafe.com/blog/glass-break-sensors ( simplisafe dot com /blog/glass-break-sensors) seems to be correct, including that the "little amber light" on the sensor does not appear to even exist. Where can I find correct "clap" test procedure, or is there no such thing in current version of this sensor?

Also, where can I find instruction or video on accessing the "sensitivity switch found under the battery"? (Even if that doesn't exist either, I'll eventually need to access the battery to replace it and I haven't found any documentation on that. I don't feel like risking cracking it by blindly trying to pry open the back of the thing.)

Links to actual simplisafe documentation is appreciated. If that doesn't exist, any help from the community is greatly appreciated. Thanks :)

BTW I know the sensor is set up ok: when Test Mode is set via keypad, pressing button on sensor generates a "test signal received. Living Room Glassbreak Sensor" event as shown in the "Timeline" in the app.