Flash Coral Dev Board with Yocto Zeus

[alphaanyms05]

I am trying to install yocto on Coral Dev Board using the meta-coral layer in Yocto Zeus. I build the image successfully. Now I am trying to flash the coral board with generated Yocto Zeus.

To flash the board I tried the following steps:

1. used balenaEtcher software to flash the Yocto Zeus on SD Card.
2. inserted the SD Card into the dev board
3. powered on the board and monitored the serial output but facing issues while doing so.

Now I am trying to flash the dev board using the fastboot method: link to the official doc- Flash the board

But I am stuck on how exactly should modify flash.sh file so that custom-built yocto image will be flashed on Coral Dev Board. Am I doing something wrong with the steps? Any suggestions will be appreciated.