Lenovo Y400 Won't Boot

rfreemanvt

Prominent
Dec 1, 2017
1
0
510
I upgraded from a Y400 to a Y700 and passed that laptop onto my little sister. Recently she's tried booting it and it boots to a blank screen. The screen itself boots but it's just a glowing black screen. After about 30 secs the laptop shuts back down. I've done the battery reset fix with no luck. Anyone have any suggestions?


Update:
A friend of mine suggested it was a HDD issue. I switched the internal HDD with the one in my SATA slot and while I'm still getting the same black glowing screen with no splash, at least now it isn't shutting itself down. Suggestions for where to go from here?
 
Solution
Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.
Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.
 
Solution