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February 6th, 2025 18:49
Dell Laptop No Boot up, flashing code
My Inspiron 15 3521 laptop will not boot up. The charging LED is blinking one white, and two amber flashes. I cannot find a code chart to diagnose it. My suspicion is that the internal battery needs replaced. Can anybody confirm what the LED code means?
Thank You!
Dougdoorman
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February 6th, 2025 19:08
@ejn63 Thanks so much for your answer. I actually, after a little deeper research, found a LED code chart, and came up with the same answer. Not really what I wanted to hear, but never the less, at least I know now. Thanks again for the prompt diagnostics!
ejn63
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February 6th, 2025 18:58
2 amber 1 white means bad CPU or mainboard.
Documentation in the service manual under Troubleshooting.
https://www.dell.com/support/product-details/en-us/product/inspiron-15-3521-laptop/docs