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September 11th, 2024 02:27
Latitude 9420 error codes after screen replacement
Hey All!
So replacing the non touchscreen panel with a touchscreen panel was a success. Installed it and everything came up. I was prompted to do some updates from Windows. When it rebooted, it gives me the Dell logo then goes black. It gives me an error code of 2 amber and 7 white lights. from what i read, it says something about an LCD power rail problem. any idea how i can fix this?
Thanks!
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Chino de Oro
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September 11th, 2024 04:43
It's irony but, the suggested resolution for error codes 2, 7 is to replace the LCD module.
https://www.dell.com/support/manuals/en-vc/latitude-14-9420-2-in-1-laptop/latitude_9420_sm/system-diagnostic-lights?guid=guid-fa7ec9b6-8703-4678-9ebb-9cea1f6e3483&lang=en-us