Extreme mobile phone maintenance teaching and research center, extreme e-hall mobile phone maintenance training school, etc. According to Baidu map, there are many mobile phone maintenance training institutions in Nanyang, such as Jisu Mobile Phone Maintenance Teaching and Research Center and E Hall Mobile Phone Maintenance Training School, which all provide mobile phone maintenance training. Nanyang, called Wan for short, is a prefecture-level city in Henan Province, China. Nanyang is the birthplace of Liu Xiu, Emperor Guangwu of the Eastern Han Dynasty, and is known as "Southern Capital" and "Emperor's Township".