I inserted a python-script in /init.d which runs an endless loop - and then the wfif was dead. Now it is impossible to make a facory reset by pressing die wifi-button for 20 seconds and go again to AP-mode.
Do I have to through the device into the trash or is there another way to get it operational again? I admitt that I didn't tried to connect the console by UART-USB cable - I have not yet procured one.
Thanks for your advice.