Network problems. Insufficient mobile phone traffic, delayed wireless network and inability to download are all network problems. Shenzhen yomi Education Technology Co., Ltd., founded on 20 16, is located in Shenzhen, Guangdong Province. Is a wholesale-oriented enterprise with a registered capital of 654.38+220,000 RMB. Its business projects are: teaching product research and development, art, dance, chess and cards, calligraphy, vocal music training, cultural and artistic exchange activities planning, cultural industry investment, domestic trade, and import and export business.