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Laptop will not turn on, no power present

HP Recommended
ZBook 15u G3
Microsoft Windows 10 (64-bit)

ZBook 15u G3.

When I connect my charger, the power led turns on, charging LED flashes orange/white 4 times, then everything turns off, I have tried leaving the laptop on charge for over an hour, with still nothing happening.


I have tried removing the battery but I get the same result.

I have tried holding the power button for a hard reset but that does not help either

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