Hi Jo,

feel welcome - its okay to write english, shouldnt be a big deal

Regarding to your issue, as far as i recall Yacco didn´t hold up the programming for newer versions because of interest of users and too much work to adopt to newer version above MWC 2.0 . Too many changes, too less information, too little time.

Alternatively you can use I²C LCD with 128x64 pc. on the I²C Bus of your Arduino or compatible FCU, or a Bluetooth adaptor and an Android smartphone with MultiWii Config-Tool. First solution allows settin values and switches thru transmitter ( must be enabled in sketch first ), second ones if very comfortable with graphical output of live data, but if updating firmware on FCU , BT must be disconnected, otherwise connection problems and wrong read/write actions will be caused.

Thank you for your answer.. Hmm I think the best option is to take the laptop to the field then
Unless there is an alternative with an arduino and LCD, but using the sticks on the radio..

João