Translations:KAVAN V20 + ETHOS™ - User manual/66/en

From KAVAN RC Wiki

When editing model names on the Edit Model screen, the model file name (.bin) will also change. The model file name will be listed in all lower case (the actual model name with upper and lower case characters is stored inside the bin). Not all characters are supported for the bin name of the model file, so it may not exactly match the model name.