Where is Samsung Shanghai mp3 after sale? What's the phone number?

Shanghai Tianyu Vision Information System Co., Ltd. 02 1-64683388, No.2 Wuzhong Road, Xuhui District, Shanghai

021-58811372, lianbang tangqiao baiyi home appliance maintenance service center, 54-56 lancun road, pudong new area, shanghai.

Room 40 17, No.72/KLOC-0, Zhang Yang Road, Pudong New Area (Pacific Digital Phase III) 02 1-58366822.

Shanghai Xinwei Photography Equipment Co., Ltd. No.812 Yan 'an Middle Road, Shanghai 02 1-6272200 1

These are all officially authorized.