Hello, 1 year before i used my 4gb jetson nano properly. Today I wanted to update my nano and failed. Then I decided to flash new rom. Followed these instructions properly https://developer.nvidia.com/embedded/learn/get-started-jetson-nano-devkit#write and now i can not boot my jetson nano. It stucks in boot screen and only says that
imx219 board setup error during i2c read probe (-121)
board setup failed
I connected all monitor etc. devices. It worked properly with old version. What should I do? Please help, thanks!