Flash os into SDcard following the instructions on the official website.
Then no matter I use DC power of micro-usb power, no matter I insert SD or not, the HDMI screen stop with showing this.
But I use microusb to connect nano with ubuntu PC, PC can’t recognize from usb serial port,then how could I flash SDKmanager?
You mean use ubuntu flash OSimg?But we usually use balenaEtcher, a window’s software to flash.
No, not VM,just ubuntu OS pc.
actually,I have tried on VM before which can’t detect nano,too.
As I mentioned above that windows pc can’t detect nano which also means VM on windows can’t either.
Besides, when I test nano,it can’t output power for usb devices like mouse,keyboard.
I am not sure if you know this or not. When the board is in recovery mode, it is basically just a brick. This mode is to let your host able to flash jetson. Thus, if you are talking about you cannot use mouse in recovery mode, then I am not surprised.
Does your micro usb cable have data line but not just only power line cable?