04-23-2017 08:14 AM
HP Notebook - 15-r210na (ENERGY STAR) black screen, tries to turn then blinks f12 , tries to turn again then blinks f12 another twice. I have stripped it and reseated the memory module. Still the same. Hard reset etc.
It belongs to my brother and i suspect he's not been installing updates.
04-23-2017 08:35 AM
Please use this to identify the LED blink code:
It seems like BIOS corrupted to me.
Rule out battery and AC adapter issue, by trying with another adapter
If no joy, try restoring BIOS using key press combination,
This is the latest version of BIOS available from your HP support page: Windows 8.1/10
Download, run the .exe file and make BIOS recovery flash drive, from another computer
Then plug in the USB to your laptop, use key press combination to restore BIOS from external storage
Click the "THUMBS UP ICON" to say thank you and Click "ACCEPT AS SOLUTION" if this is the answer you needed