Screen blackout in HP laptop means no light or no sound and screen is blank or showing error message like a computer not start. This issue can create a major problem if not solved timely and if you have entered a password and the course is blinking on the screen it means you need to run a right troubleshooting process to fix this issue that has been discussed below.
Connect External Monitor for Display
Laptop screen blackout errors come and remain black either due to corrupted graphics or a problem with the backlight display. To check the issue you need to run a display test in which you have to connect any other monitor with your PC. If HP laptop screen is a blackout, then the external display would be helpful because it will tell you that whether sound, vent fan, drivers and warring tones are working or you need to update the same.
Resetting the Memory Module of HP Laptop
A loose memory module will not let you to see the images. This problem can be solved by resetting the memory modules can help you to solve this issue. To reset the memory module you need to take help from certified technician providing HP laptop troubleshooting service. However, this will work only in HP notebook PC, for other HP computer devices the process is different that can be performed with the help of an expert.
Understand the Behavior of LED Light
LED light in your HP laptop indicates a particular activity through different shades of colors and you need to understand the behavior of this light. One or two short beeps before starting means that your computer is running normally and BIOS startup and setting are fine. However, if your computer beeps and not starts means there is some serious hardware issue or likely to attack to your computer which needs to be addressed skillfully.
Recover the BIOS by Pressing Right Key
While upgrading BIOS on your HP notebook also store a copy of previous BIOS into the HP_TOOLS partition of the hard disk. This helps to recover HP notebooks through BIOS recovery feature to recuperate and installed the last version of the BIOS from the hard drive. This vital feature is different from the BIOS and is specially designed to work in the event of a disastrous BIOS failure to configure HP laptop with new settings.