Nanjing university student mobile phone network is really a liar and seller. This is the first time I have been cheated on Taobao in recent years. I bought a mobile phone there recently, and it broke down after 10 days. The first is the problem of fever. I sent it back for repair. After 10 days, there was no signal, so I sent it back. After 30 days, I replied that it was not repaired. I said I had repaired it myself after I sent it back. Taobao is really deep! ! If you don't believe me, you can buy it, but if there is no problem with the mobile phone, it is really wishful thinking to ask them to change or repair it for you once there is a problem. You'd better buy licensed goods. If you don't buy licensed products, then go to the local physical store to buy them, otherwise the mobile phone is directly waste. Don't expect a store like Nanjing University Student Mobile Network to provide maintenance. It's a bloody lesson. I usually know it without going back to Baidu, but after this experience, I plan to do it in the future. !