Shenzhen Haolong Electronics Co., Ltd.
Mobile: 13417514058 (Mr. Chen)
Tel: 0755-33593525
Fax: 0755-33593525
Zip code: 518103
Address: 3rd Floor, Building B, Xiye Industrial Park, Xixiang, Fengtang Avenue, Fuyong Town, Baoan District, Shenzhen
Website: www.iro-electronics.com
If you don't know what kind of error, the easiest way is to "restore factory settings", which can be found in the setup menu. After restoring the factory settings, you also need to "format" the memory card. Basically, the problem can be solved.