Why won't my computer start? The screen will flash on then go completely black? It shows I have a full battery. Is there a reset button?
Could be a hardware or software problem. If you have access to another computer, go to R730 17 3 Essential Notebook NP R730 JA02UK Support SAMSUNG United... and download the manual and troubleshooting guide. When the computer screen 'flashes' does it have any message on it, like "Hit F2" or "Hit Esc" to enter the bios setup screen showing? If so, try hitting that key when turning on the machine, and see if you can get into the bios setup screens. That will tell you if the basic functions of the microprocessor and video card are working. If you can get into bios setup, you can check to see if the computer is registering the memory and hard drive. Also listen for any series of POST (power on self-test) beeps that are being generated during bootup. If you hear any number of beeps other than one short beep during startup, you have a basic problem detected by the bios. The short-long combination of beeps tells a technician where the bios is having a problem setting up the computer. No bios boot messages, no beeps, you have some form of serious hardware problem that you need to have someone with a technical background take a look at. If the computer is still in warranty, call your manufacturer's support number.
Does it beep when it goes to black screen? if so it could be a B
IOS problem count the beeps and look up your computers BIOS system on another computer. The beeps indicate certain issues. Some of them are easily solved others are better left to a pro.If you have no beeps then it may be a burnt out power pack. If it's a desk top it's easy to fix. If it's a lap top is a little harder. Either way both if you have never opened a computer can be scary, Get a techy to look at it if you don't feel comfortable with tackling this.
Hope this helps a little
SOURCE: Reset BIOS password for SAMSUNG NP-SF510 LAPTOP
BIOS passwords can be reset or removed in two ways:
1. using software 2. using hardware.
I would first try resetting or removing using software, here are two software apps to reset or retrieve BIOS passwords.
!BIOS - is a PC BIOS toolkit offering password removal/decrypt and BIOS settings modification/backup/restore.
You can download it here:
http://www.syschat.com/download120.html&act=down
CmosPwd - Cmos password recovery tools
http://majorgeeks.com/CmosPwd_d239.html
You will need to create a bootable Dos, or Linux or NT cd in order to run them.
Good Luck!
SOURCE: samsung np-n150p black screen
A blacked-out screen doesn't necessarily indicate a broken monitor. If the computer has run out of charge or is in hibernation or sleep mode,
if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on.
To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.
Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard.
Press the power button if the screen remains black. Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue.
Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue.
Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases. Some computers also use the "F6" or "F7" keys to increase screen brightness.
Hold down the power button for 10 seconds to turn off the laptop. Remove the AC adapter from the computer, close the screen, and then turn the PC over.
Slide the battery latch to eject the battery. Pull the battery out of its compartment.
Turn the computer back over, open the lid, and insert the edge of a flathead screwdriver or other flat, solid object beneath the bezel above the keyboard.
Wedge the edge of the keyboard bezel off of the top cover. Work your way along the edge of the keyboard bezel to loosen it. Pull the bezel off the laptop.
Trace the cable coming from the laptop screen to the connector found beneath the bezel. Reconnect the display cable to the motherboard if the cable has come loose from the connector.
Line up the tabs on the bezel with the slots along the top of the keyboard. Insert the right edge of the bezel into the gap above the keyboard, and then push the bezel back in place.
Turn the computer back on. If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective. If the external monitor works, the LCD screen could be broken.
If the monitor doesn't work, the motherboard or video card might need to be replaced.
hope this helps
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