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HP ENVY x360 - 15t-w100 CTO (ENERGY STAR)

Without warning my HP 15t-w100 laptop will not startup.  When I press the power button the power light comes on, the fan comes on.  After a moment the caps lock key starts blinking in a repeating pattern of 2 long blinks and 2 short blinks.  My research shows this is a failure of the BIOS.  I've tried the various key combinations suggested for resetting the bios, windows+b, windows+v, esc, f10.  None of them have any result.  The next step appears to be to load a clean bios image, but it is no longer available on the HP website.  I welcome any suggestions on how I could recover this laptop.

Thanks!

Dave

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