Sipeed Nezha 64bit RISC-V Linux SBC Board
The board displays a black screen when connected to it. Reboots don't help. When you pull out the SD card, it reacts and writes that insert the card. As if he could not read the memory card. Tried to insert an SD card from the working board. This board also displays a black screen. When you try to insert a USB flash drive, it also asks you to insert an SD card. There is no burning smell from it. The network indicators are working.