If Sparklike Handheld Nova becomes unresponsive and cannot be turned off with the BACK/POWER button, press the DOWN (lower MENU) and OK buttons at the same time. This forces the device to power off.
Use the forced power off only when the device does not respond. In normal operation, always turn off the device with the BACK/POWER button. The forced power off bypasses the safe shutdown and may corrupt stored measurement data.
After restarting the device, check that your latest measurements are saved. If the device stops responding again, contact [email protected] or your local distributor.
