If you screen does not turn on, you may be tempted to this the LCD is dead or a cable has been cut.  However, usually the problem is with something on the motherboard and often you can fix it yourself.

Below is a list of Dell flash codes that you can see on your computer, usually on or near the power button that will help you diagnose the issues.

White Flash CountAmber Flash CountFailing ComponentFailure Description
12CPUCPU failure
13RTC power failureCMOS battery failure
22BIOS ROM failureSystem board failure (included BIOS corruption or ROM error)
23PCI/videoPCI or video card / chip failure
32MemoryNo memory/RAM detected
33BIOS recovery 1Recovery image not found
42MemoryMemory/RAM failure
43BIOS recovery 2Recovery image found but invalid
52MemoryInvalid memory installed
53PowerPower sequencing Failure
62ChipsetSystem board / chipset error
63BIOSFlash corruption detected by SBIOS
72LCDLCD failure
73BoardTime out waiting on ME to reply to HECI message

dell flash codes explained

In my case I had a Dell Latitude 5300 2-in-1 with a flashing LED located at the very front of the laptop (just under the mouse track pad).  It was flashing 4 white then a pause then 2 yellow in a rhythmic fashion over and over again.  That code is a “4 and 2” or a “2 and 4” depending on how you look at it and that told me the memory was bad.  I unscrewed the back of the laptop, pulled the back off, pulled the RAM and moved it to an open memory slot.  This took about 4 minutes and all is well.  In my case, I likely could just have used the same slot and simply reseated the RAM but it cost nothing to move it, so I did.


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