※Help for common problems

※If the above questions can not give you enough reference, you can check the factory-installed "User's Guide", which has more detailed use of answers. If you need manual guidance, you can reply to "# phone # artificial service # ask questions" in the service number of Jian You Da Ren service. The customer service will reply you within 24 hours during 9: 30-18: 00 working day. The problem.