Connect your device then select the "Flash" option and push connect.

If asked to put your device into download mode do as follows:

Cardputer: Turn off and unplug from USB, Hold the btn G0 (upper right corner) and connect into the USB.

StickCs: Turn off, Connect one side of a jumper cable into GND and the other side in G0 (in the header pin), connect the USB Cable and remove the jumper cable.