1 Rookie
•
5 Posts
•
10 Points
0
192
October 17th, 2025 02:17
My Dell XPS 15 9520 won't start up. Flashes 4, 3 code.
When it powers up, it shows Dell logo for about 30-45 seconds, then goes black screen for about 5 seconds, then flash a full white screen follows with Dell logo again for a bout 15 seconds, then goes black screen permanently. After that, LED flashes 4 amber and 3 white error code. I've checked Dell's website to see what that code means, but they don't have such error code definition . anyone have any idea please?
No Events found!
anne_droid
5 Journeyman
•
1.6K Posts
•
6.1K Points
0
October 17th, 2025 09:41
Hi
On the Dell XPS 15 9520, the diagnostic LED error code 4 amber (orange) and 3 white flashes indicates a Memory (RAM) failure according to Dell’s official XPS diagnostic code list and user reports.
I agree about the lack of an error code definition on the support page.
So without corroboration, it may not be as listed above.
ejn63
12 Elder
•
31K Posts
•
153.6K Points
0
October 17th, 2025 12:50
It is a power rail failure -- you need a replacement system board.
Ali.Sharekh
1 Rookie
•
3 Posts
•
8 Points
0
May 16th, 2026 19:46
@anne_droid I have the same problem and light code, but it works on external screen.
If there is Ram failure, it will not work !
(edited)
Ali.Sharekh
1 Rookie
•
3 Posts
•
8 Points
0
May 16th, 2026 19:48
Hi dear,
I have the same problem too :(
Did you get any solution?
Roockk
1 Rookie
•
5 Posts
•
10 Points
0
May 16th, 2026 23:35
Problem fixed. It was the faulty display cable that connects the screen and the motherboard.