Erase the NAND using the serial flasher

Hi guys how are you ?
I am new to arduino and i m getting the subject´s message.
I do not know what to do.
If someone help me i can pay for that.
Thank you

If typing that phrase into Google gets you no results, then you are going to have to give us more information. What are you trying to do? Why?

Hi Morgan, thanks for your answer.

Follow is the link to the process that i m trying to do.
I have completed the process many times succesfully, but now i m getting that message and i do not what to do.

Thank you very much for your help

Just to explain a little bit.
I solder the adapter to the board, i check the port, then i open the command prompt and type:
sfh_DM36x.exe -nandflash -v -p "COMXX" dm6467_297_ubl.img uboot_
modifiedByGaucho.img
Sometimes it shows " boot me boot me " and then i do ctrl_c and type again, but now all the time finishes with " interface to the DM36x via UART failed " and i have read that erasing the Nand could fix.

I fail to see how this is an Arduino programming question. You might get better help on another forum.