El600 Manual: Bosch

Check the battery orientation or use the emergency USB port to see if it powers on.

Flip the physical switch on the inside panel. This disables all outside entry methods except for the mechanical override key. 🔋 Maintenance and Troubleshooting Battery Replacement Bosch El600 Manual

You can enter random numbers before or after your actual PIN to prevent onlookers from memorizing your code. Check the battery orientation or use the emergency

I can provide specific for any of those scenarios. Bosch El600 Manual