To use this Canon Cinema EOS C100 Mark II camera, first, connect the correct power supply or insert the charged battery. Then, you're ready to start shooting. When it comes to the battery, make sure to charge it using the provided battery charger. As for the known issues, be extra careful around the cracked plastic housing below the lens mount to avoid further damage. Also, since the built - in monitor has screen burn - in, you might want to use an external monitor for a better viewing experience. To maintain the camera, keep it in a clean and dry place. Regularly clean the lens with a proper lens cleaning kit. If you notice any other problems, it's best to consult a professional camera technician.