Miguel, The troubleshooting that you have performed on your phone is roughly the extent of can be done on devices such as this without taking them apart and test on the component level. If you are out of the warranty period, the cost to repair would be more than the cost of the unit. If you are within the first 1 year of ownership, Panasonic will repair the item for you. They provide the following information for obtaining service, "In the continental United States and Puerto Rico in obtaining repairs please ship the product prepaid to: PSTC (Panasonic) Exchange Center, 4900 George McVay Drive, Suite B Door #12, McAllen, TX
[email protected] shipping the unit carefully pack in a padded shipping carton, include all accessories, and send it prepaid. Include a letter detailing the complaint, a return address and provide a day time phone number where you can be reached. P.O. Boxes are not acceptable. Keep the tracking number for your records. A copy of valid registered receipt is required under the 1 year parts and labor Limited Warranty If you find this information helpful, please be sure to click the Accept button.