Please use the THITRONIK® App to avoid general errors in the syntax when programming the Pro-finder. If programming fails despite the app, please check the following error sources:
Error sources with Android operating system:
If the Pro-finder does not respond despite programming with the THITRONIK® App or if the Pro-finder responds to normal commands such as "Status" with "invalid command" after programming by another cell phone, your smartphone is probably using Unicode to send the SMS. This can be changed on Android devices under the message settings (->Settings ->Additional settings ->SMS ->Input mode) e.g. to ASCII or GSM alphabet. You can access the message settings either from the message app or the main settings.
Error sources with iOS operating system:
If the Pro-finder shows no reaction at all, although it was configured according to the programming with the THITRONIK® App or if it reacts to normal commands like 'Status' with "Invalid command", it should be advisable to deactivate the iMessage function on the iPhone that was originally used for the initial configuration of the Pro-finder.