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You may have interupted the procedure before it was complete. Save your bios upgrade on cd or diskette.power down your pc and remove your battery for sometime. Then boot your pc from the cd or diskette and begin the upgrade. good luck.
To reset your BIOS password you need to call the NEC to give you a reset code. Most Computer manufacturers like DELL, HP do have password reset tool from their end. you just need to call them to ask for a reset code but expect to answer all security questions before they gave you the reset code.
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With the HP series of laptops, I doubt that resetting the bios chip would have any effect and you would not be able to see what is happening, what you describe ( a bios flash) is not the easiest solution.
Try it on an external monitor, if the problem persists, then you have the usual failed Nvidia graphics chip problem, all too common with HP laptops as they overheat and need to be "reballed"
If you can get an external picture, issue is likely to be with the inverter, the screen, or maybe just a loose cable or in extreme circumstances, a damaged vga cable
This happened to me. In order to fix it, unplug the power source and take out the battery. Hold down the power button for 30 seconds. Then plug back in the power source and the battery and power up the laptop.
This is called resetting the power cycle and should fix it.
Hi, Try taking out the battery and booting it on AC power only, if the laptop boots let it boot up then shut it down and reinsert the battery and try boot again. If it doesn't boot up then there is a problem with the battery.
Removing the cmos battery isn't always enough to reset the bios you may need to find the 'JBAT1' terminal on the mobo and put jumper across pins 2-3 then back to 1-2.
But it may be a faulty mobo where the charger connects to the board.