[SOLVED]820-3437-a losing picture after press enter when you log in to user profile

[speedyaction]

hi guys. i hack of screen still have very strange problem here. 820-3437-a . laptop powering up ok and showing me login profile. i put password in and press enter then laptop losing picture and when i look it on the back still have back light but no picture. any idea?

 

[aprendiz]

Have you tried another SSD?? Or booting on external drive?? PRAM reset???

 

[speedyaction]

yes of course. i done smc reset and pram also when external fully working order hard drive is booting up. after when loading bar is show is getting black screen and stay like that but back light is still on

 

[speedyaction]

Ok. fixed!!! replaced u7320 and also u7200 and now is working ok. thx for trying to help