Jetson Nano unable to read OS

I have flashed the .img file to micro sd card
Connected all the cables as suggested in the official website

After I placed my sd card into the slot and power on the nano, it is not reading the OS.

What wrong am i doing?

Please help out, i am stuck very badly.

Hi sameerkhansrk2012,

After copy image to SDCard, are you flash Jetson-Nano by sdkmanager or manually?
Flash by manually steps:

Put Jetson device to recovery mode. 
Go to JetPack install directory: ~/nvidia/nvidia_sdk/JetPack_4.2_Linux_P3448/
cd Linux_for_Tegra
Run below command to flash Jetson device:  
$ sudo ./ jetson-nano-qspi-sd mmcblk0p1

Thanks for your quick reply.
All i did is formatted the sd card again and did flash using sdkmanager, now it is working fine.