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Dell XPS 7390 10th Gen - Screen Not Turning On, Charging Indicator Blinking
Hi Everyone,
I'm encountering an issue with my Dell XPS 7390 (10th Gen) where the screen won't turn on. While the keyboard lights up with Caps Lock key, there is no display at all. Additionally, the charging indicator blinks alternately in red and white, even when the battery is fully charged.
I've tried resetting the BIOS by holding the power button for 20-30 seconds, which temporarily fixes the issue allowing the laptop to turn on but the problem reoccurs after a while. I've also attempted powering the laptop with just the AC adapter (with the battery removed), but it won't turn on in that setup either.
At this point, I'm not sure what could be causing this problem and would really appreciate any advice or suggestions.
Thank you!
jawadkhan
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August 21st, 2024 06:10
@ejn63
Thank you for your suggestion and consideration. The charger is working fine, but it turns out that two ICs on the motherboard were faulty. They were replaced by professionals, and the laptop is now functioning properly.
ejn63
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August 17th, 2024 10:56
Verify that the LED on the DC plug comes on and stays on solid before you plug in the notebook end. If it does not, the adapter is bad.
If it does, the mainboard is bad.
dghoughy88
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September 23rd, 2024 09:42
I’ve seen so many posts with this same issue it’s getting silly. 7 white, 2 amber flashes after reboot or sleep but close up and then open laptop works fine.
I took mine to a tech who couldn’t fix it without trying expensive routes like new mb or lcd. He said could be software related so I backed up and factory reset pc (Windows 10), thinking it was perhaps a NVidia graphics conflict?
still not fixed and still own a £1800 brick!!
Are there any experts out there able to definitively diagnose this issue as the LCD or MB rather than software related?
dghoughy88
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September 23rd, 2024 09:57
The reason I mention this is disabling ‘Intel Integrated graphics’ under device manager seems to have cleared the issue but I’m aware this is a workaround rather than a fix!
Any reason this is happening???