To download the software, you must have an Internet connection.
An update of the BL-Ctrl, the GPS, or (who has) the MK3Mag is usually not required.
After the KopterTool is open, you can "click" on the button Firmware update & Terminal...
...and the Terminal-Window will open.
Here in the Terminal-Window you can "click" on the loupe button and the window for the
download will open up:
Here you can find quick and easy the latest versions of firmware.
The MK-tool does not send / receive data automatically to / from the internet. To display the current software versions,
you should use first the button Version List update
After this update of the latest versions, the module can be selected in the middle tab for which you want to download the software.
In example for the FlightCtrl:
In the upper (white) window the current (and older) software versions are shown. Here you can choose (by clicking) the desired software version.
After an click on the needed version, the version information will be displayed in the (green) window below.
To download the file, simply "click" on Download.
To change quick into that directory, you can do it with the button Open Downloads:
To download additional software just repeat the steps above.
If you're finish, close that window with an click on the button Close:
With these downloaded files you can now update the individual components.
How that works can be found here: Update
Download the software out of the SVN
Alternatively you can also download directly from SVN a current software version.
Information can be found in the Expert Functions: SVN