The software version you need depends on your specific controller model. Most modern Votol controllers (EM series) use common tuning tools. Official Source: The primary manufacturer, , provides the most reliable downloads on their Instructions for Use page Latest Universal Version:
: Detailed instructions for parameter tuning (voltage, current limits, and sport mode) can be found in the VOTOL EM Controller Manual Platform Compatibility : The primary platform for all tuning software versions. Android/iOS Download Votol Software