With the ClexFWProg App, the firmware of the electronic locking units of Uhlmann & Zacher can be updated using the smartphone.

During the updating process, the smartphone communicates with the locking units via Bluetooth® Low Energy. Make sure you have the latest firmware features and security fixes by keeping the locking units up to date.

Other features:
- Service openings
- Battery position for battery change
- Disassembly position
- Toggle locks
- Setting real time clock