820-00239, no image on screen

yobad

Member
I have an 820-00239, the client tried to install a new screen with himself,
i believe he didn't disconnect the battery before the installation,
Now there is no image or backlight on screen, I tried 2 screens
no image on external
the fan spin and CPU get hot
USB c 20v/0.8a
battery charge normally
I think the board start
already replaced u8520 and U8500
 

yobad

Member
usb c activity normal, i get 20v and start from 0.2a to 0.8a, that mean the board boot. if the battery connected it go to 2.5a
 

2informaticos

Administrator
Staff member
Please confirm USB activity for sure first.
Use USB mouse, or pendrive with Link LED.

Disconnect internal LCD, when test external video.
 

2informaticos

Administrator
Staff member
If no USB activity, no reason for video search.
Your board doesn'r really boot, just stays on; is not the same thing.

CPU could got damaged in some way...
 

2informaticos

Administrator
Staff member
Pufff, is total different thing.
I'm sure you can find videos on Internet, but I don't recommend to bother with it.
 
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