[Q] Alcatel One Touch Fierce White Screen topic

Hi guys, my mom's cellphone has this issue, and i want to know if this problem is of Screen, Digitizer or base board.

So, when i turn on it's show a white screen always, then when i try to enter on recovery, download mode it's the same, but it's something weird after a minute after turn on, i listen the sound of notifications, i did a test, sending a whatsapp from my cellphone to her and sounds.




a little video with white screen
https://vimeo.com/119402123


Thanks Guys.