Hi @bolt_iot:
How was the Bolt unit powered when it was in the drawer?
If it faced multiple power outages (This is generally what happens when the battery supply capability is above the required value to power up the unit, but not sustain it), then it has a limited probability of loosing the credentials of the WiFi that it was configured for.
All you have to do is power the unit using a stable supply, and use the Bolt app to connect configure the unit to connect to the WiFi.
All of your other settings are stored in the cloud, so you don’t have to worry about them.