Question Dell Latitude 5480 not powering on

Jan 12, 2020
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Hi guys,

I have a Dell Latitude 5480 that's not powering on.

When you press the power button, it just stays on for about three seconds then shuts down.

The LED lights are not turning on. And there are no beep codes.

I've tried running the BIST test and it passed.

When you plug in power, the LED light flashes white on and off forever but still doesn't power on


Many thanks,
Mel