macbook pro wont turn on proerly help???/

my MacBook pro wont turn on properly,

when I turn on it has a white screen

I do control R to start up internet recovery and connect to my wifi

it starts to load and then stops

I have had these 2 codes come uo

2102F

4403F

does anyone know what they mean?

or can anyone give me some advise on what I should do

thanks