Why is my screen not working?

[AC Question]

Few months back I had problems with my battery draining quickly and phone heating up so went to a phoneshop to get it repaired!they said I had some problem with motherboard and I had to replace it but they were charging 300USD for it so instead I bought a note 4 mother board online and changed it myself! The phone turned on but the screen is all black! Then after some thinking and analysing the model number on my phone and the new mother board doesn't match mine was SM-N910C and the new mother board is SM-N910F/G! So my query did that happen because of the different model? What do u suggest I should do?

 

[belodion]

It may be best to seek advice directly from Samsung customer support over that. They will know about any spec differences.