CME Hobbies buys form manufactures that are in good standings within  the RC Market place. We are not an authorized warranty repair shop. The following information are the manufactures help lines you should contact to have repair work done or defective merchandise returned.  In most cases, the manufactures will stand behind their product. If you need assistance in contacting the manufacture, we will be here,  cmehobbies@cmehobbies.com  to answer questions regarding the product you purchased.