BPI M2 ZERO How can I change the bpi logo on startup and how can I remove the os loading lines and get a blank screen instead

I am working on BPI M2 ZERO and I have raspbian os installed on it . How can I change the bpi logo on startup and how can I remove the os loading lines and get a blank screen instead .

I got this solution - How To Change The Boot Logo

but it is giving error - *** [u-boot] Error 2