AndroidTools升级失败

Chip Platform Rockchip
1

AndroidTools升级，进入Loader模式后，选择固件，点击升级失败，请问如何解决？
log如下：
14:41:33 351 瑞芯微开发工具 v2.5.8.0 start run
14:42:14 932 Layer<3-1-5>:测试设备开始
14:42:14 933 Error:RKU_Open–>CreateFile failed,err=5,path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:14 941 <LAYER 3-1-5> ERROR:TestDevice–>RKU_TestDeviceReady failed,RetCode(-1),path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:15 943 Error:RKU_Open–>CreateFile failed,err=5,path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:15 944 <LAYER 3-1-5> ERROR:TestDevice–>RKU_TestDeviceReady failed,RetCode(-1),path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:16 947 Error:RKU_Open–>CreateFile failed,err=5,path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:16 949 <LAYER 3-1-5> ERROR:TestDevice–>RKU_TestDeviceReady failed,RetCode(-1),path=\?\USB#VID_2207&PID_320C#7C8A5A0C7F709C8D#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
14:42:17 952 Error:Layer<3-1-5>:测试设备失败

2

可以尝试一下擦除后再升级