NUC X15 LAPKC71E cannot start

[longphanhai]

Yesterday I hibernated my laptop and when I tried to turn it back on it will not display anything. The power button when plugged stay on for 20 seconds and then turn off, pressing any button will make the power button flash steadily. After a while the button flashes 3 times per interval. When I unplugged the laptop and press the button the light only stay on for 20 seconds and shut off and then nothing else. I tried replacing the RAM, replugging the SSD, battery but nothing helps. The laptop wont even boot into BIOS when I spam F2. Please help me, thank you.

[VARADHARAJAN]

@longphanhai 

Remove external devices connected to the laptop, press and hold the power button for 120 seconds, and release the button. 

Wait for 5 minutes, then power on.

If the CMOS battery comes with the device, remove it, wait for 5 minutes, reinsert the CMOS, and then switch it on.

If the BIOS reset button is in the laptop, then press the reset button for 5 seconds, then switch  on after 5 minutes

Varadharajan K

[longphanhai]

Thank you for your recommendations. I have tried all of the above but the laptop still acts the same way.

[VARADHARAJAN]

@longphanhai 

Take your laptop to nearest authorised service center