Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
开始以为是接触不良，后面多方面测试，排除了接触问题，应该是芯片烧了，估计是开机状态下取卡，电压过大导致的。给后面的人一个警惕，关机取卡比较保险！
