I found it. My led panel isn't DFR0499, it's SMD2121. It's a similar product but I couldn't get run. I bought the correct DFR0499 led panel I will try when arrives from dfrobot partner at Spain (mouser.es).

I don't know if SMD2121 can be used with Arduino mega and dfrobot library but I can imagine it isn't the correct forum to ask it.

Thanks