1) LED blink twice means you have corrupt BIOS so go to Hp website and download latest BIOS driver for your laptop(download exactly for your laptop model number)
2) When you download Bios latest available driver extract it by using 7-zip or WinZip program.
3) Now as your Extract BIOS driver into many small files look for those two files (*.bin and *.sig).
4) Now create folders in your usb in this way ..\Hewlett-Packard\BIOS\Current\ and save those two files in your “Current” folder.
5) Connect that usb to your dead Hp laptop and Hold win(windows key) +B (key) then Press Power on. While holding win+B you will notice a change in blinking LED lights release keys (Try few times if didn’t work its tricky for first time) and BIOS will pick those two files and your laptop will power on like normal.
Note:(If you have different Company (vendor) laptop with corrupt BIOS problem then do not follow this tutorial you might damage your laptop)
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