# STB Tools and Multistep

Due to the wireless nature of STB tools, some multistep functions and behaviors may differ. Besides the general limitations listed here, descriptions of multistep functions will be additional information on STB tools where necessary.

## Program Validation

All tightening programs will be validated for compatibility with STB tools before the program is downloaded to the tool. If the chosen tightening program is not compatible with the tool, the tool will be locked. When this error occurs, it will trigger event 5030, "Configuration complexity exceeded".

To unlock the tool, reduce the complexity of the tightening program, or choose a different tightening program altogether.