Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
手上的资料有两个版本的下载工具，一个2020.717，另一个是20204.7.20，同样的文件同一个块板，为什么老版本20204.7.20可以擦除然后烧录，而新版本2020.717倒不能擦除烧录，只能连接上而已，这不合理啊
