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The screen is blank on startup. According to HP troubleshooting, the # of blinks (2) indictes BIOS corruption failure and that after a period of time the computer will restart and they recommend updating the BIOS at that time. However, my computer has been on for quite sometime and it is not restarting and screen is remaining blank. Can you help?

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What is the model of your laptop?

Posted on Mar 24, 2011

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How to restore corrupted BIOS of presario cq60 laptop


Whenever you upgrade the BIOS on your notebook, a copy of the previous version is stored in the HP TOOLS partition of your hard disk drive. Many HP notebook computers have an emergency BIOS recovery feature that allows you to recover and install the last known good version of the BIOS from the hard drive, as long as the hard drive remains functional. This emergency recovery feature is separate from the BIOS and is designed to work in the event of a catastrophic BIOS failure.To recover an earlier version of the BIOS on your notebook:
  1. Turn off the computer.
  2. Plug the notebook into power using the power adapter.
  3. Press and hold the Windows key and the B key down at the same time while the computer is off.
  4. Still pressing those keys, press and hold down the Power button on the notebook for 3 seconds and then release the Power button and the keys. The screen remains blank for about 40 seconds before anything appears on the display. You might also hear beeping sounds. Eventually, an HP BIOS Update screen displays.note.pngNOTE:If the computer fails to display an HP BIOS Update screen, press and hold the Power button for 5 seconds to turn off the computer. Wait 5 seconds and try again. If, after repeated attempts, you cannot open the HP BIOS Update screen, your computer does not support this function or it has a hardware problem that is preventing the tool from opening.Figure 1: HP BIOS Update screenc03376208.jpg
  5. When the BIOS has been recovered, a Continue Startup button displays and timer counts down. You can click Continue Startup to restart the computer or you can allow the timer to reach zero and the computer will restart automatically.Figure 2: HP BIOS Update screenc03376209.jpg
  6. After restoring the BIOS, if the computer repeatedly displays a message that the BIOS has been reset, then perform the steps in HP BIOS Application Selected is Corrupt or Missing .
  7. After restarting, Windows may display a message stating that the computer was improperly shut down or that a boot problem was detected. Read and respond to the screens to continue.

Sep 22, 2012 | Maxtor Personal Storage 3200 (U01E200) 200...

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I have a HP Pavilion tx 2000 tablet pc. When i turn it on the power button it shows that its on. The hard drive light does not flash and the caps lock and the number lock button keeps on blinking. My...


Hi

Boss you need to mention here in what sequence do the lights blink.

Anyways you can take help from this

Caps Lock/Num Lock LED Component Tested Error Condition LEDs blink 1 time CPU CPU not functional LEDs blink 2 times BIOS BIOS corruption failure LEDs blink 3 times Memory Module error not functional LEDs blink 4 times Graphics Graphics controller not functional LEDs blink 5 times System board General system board failure LEDs blink 6 times BIOS BIOS authentication failure
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Jul 04, 2011 | Compaq Presario Notebook

1 Answer

The capslock and the numlock leds r flashing continously. the screen is blank


How many blinks between pauses if there are pauses? Look at this chart.
Number of Blinks or Beeps Location of Blinking LEDs Component Being Checked Error Condition Continuous glow Battery power LED Battery The AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook. 1 Caps Lock/Num Lock CPU CPU not functional 2 Caps Lock/Num Lock BIOS BIOS corruption failure 3 Caps Lock/Num Lock Memory Module error not functional 4 Caps Lock/Num Lock Graphics Graphics controller not functional 5 Caps Lock/Num Lock System board General system board failure 6 Caps Lock/Num Lock BIOS BIOS authentication failure Continuous blink AC power adapter LED Power adapter Insufficient power

Jun 30, 2011 | Compaq Presario Notebook

1 Answer

HP G61 NOTEBOOK PC BIOS BLINK ERROR CODE 2 BLACK SCREEN LED LIGHTS ABOVE NUM LOCK KEY AND LED LIGHTS TO LEFT OF CAPS LOCK KEY FLASH 2 BLINKS.NO MONITOR WHEN HOOKED UP TO AN EXTERNAL MONITOR.CD DISC DRIVE...


It would seem that your BIOS has become corrupted somehow. First try entering your BIOS setup. I believe for HP computers when you press power tap the F10 key until it opens. There you can try to reset them in some fashion and save. Try rebooting. If that fails then remove the battery and repeatedly press the power button for about 10 seconds.. (make sure it is also unplugged, this is to discharge the power from the system) then replace the battery and try booting again. Otherwise it would seem that you might have tried to load the wrong BIOS into your laptop. Check with HP then if you are still covered or not. :/

Mar 24, 2011 | Computers & Internet

3 Answers

When i turn on my hp the screen stays blank and there is no pic screen seems dead the lock a button is also flashing is this normal


hi,

nope this is not normal. I have a article included below from hp. read this and you will understand the problem and also some ways on how to fix it. The blinking lights is a code on where the system fail or what component that fails.

Hope this helps you.
Don't forget to rate me OK!
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regards,
John

HP Black screen error codes

Support details

This document pertains to HP Notebook PCs with the HP Unified Extensible Firmware Interface (UEFI) beginning in late-2008.
On startup, you may see a blank screen. If the diagnostic utilities detect a specific problem with hardware components, the fan turns on, but the screen remains blank. To help identify the cause of the problem, various LED lights on the keyboard blink a series of codes.
The diagnostic utilities use the LEDs near the Num Lock or Caps Lock keys to blink a series of error codes. At the end of the series the blinking stops. The pattern of blinks will occur any time you attempt to start the computer until the error is resolved.

Battery power LED blinks

The Battery power LED indicates the condition of the power supply. When starting the computer, or when the computer is in operation, use the chart to identify the power condition.

Battery low charge or failure
Battery power LED blinking Battery Insufficient charge on the battery

LEDs near Caps Lock and Number Lock keys blink when starting notebook
The LED lights near the Caps Lock and Num Lock keys will blink if an error is detected during the start up process. The LEDs will blink a number of times in a sequence and then stop. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up.

If the LEDs stop blinking and the computer does not start, you can press the power button again to repeat the tests. Count the number of blinks, and use the chart to identify the error condition.
Knowing the number of blinks is helpful when you contact an HP support agent for technical help.
Caps Lock/Num Lock LED Component Tested Error Condition

LEDs blink 1 time CPU CPU not functional
LEDs blink 2 times BIOS BIOS corruption failure
LEDs blink 3 times Memory Module error not functional
LEDs blink 4 times Graphics Graphics controller not functional
LEDs blink 5 times System board General system board failure
LEDs blink 6 times BIOS BIOS authentication failure

Error code explanations
The sections below provide some common explanations for each error code listed in the table above.

AC Adapter not connected or battery low charge
When the computer is on battery power only and the AC adapter is disconnected, if the Battery Power and Caps Lock / Number Lock LEDs do not glow, there is either a very low change or no charge in the battery. Connect the AC power adapter, verify that the battery power LED glows, allow the battery to charge for 15 - 30 minutes and then attempt to start the computer. If it starts, run the battery test and calibrate the battery. If it does not start, if possible, connect a replacement battery to verify that the battery is the problem.

If the computer does not start after charging the battery, remove the battery and connect the AC power supply. Verify that the battery power LED glows, and then attempt to start the computer. If the LED still does not glow, either the AC adapter has failed, or there is a bad connection between the adapter and the system board. If possible, connect a different AC power adapter to verify that the adapter is the problem, or contact HP for support which may require a service event.
showhide
Insufficient charge on the battery
If the battery light LED (which looks like a lightning bolt ) flashes, the battery has insufficient charge to start the computer. To resolve this error, try the following solutions.

*
Connect the notebook PC to AC power and attempt to start the computer again.
o
Check the AC adapter to confirm that all of the plugs are securely seated.
o
Determine if the power LED on the AC adapter is lit (if available) to verify that the computer is receiving AC power from the wall outlet.
*
If the computer operates on AC power correctly, charge the battery for thirty minutes to one hour and then restart the computer.
NOTE: Charging the battery for this length of time is called "trickle charging". Trickle charging is a continuous constant-current charge at a low rate, which recharges the battery slowly when it is in a deep discharge state. Deep discharge occurs when a battery is left unused for extended periods of time.

The computer processor (Blink code 1) has stopped functioning properly. Contact HP for assistance.

BIOS corruption failure
If a BIOS corruption error occurs (Blink code 2), you may not even notice the blink codes, because as soon as the computer recognizes the error, it restarts, attempts to recover the BIOS, and then restarts again. You may notice an extra-long startup process as a result, and a message indicating that the BIOS has been recovered may display on startup. If this occurs, update the BIOS on the computer. For more information, refer to the HP Notebook PCs - Locate and Install Updated BIOS, Drivers, and Software .

Module error not functional
If you experience a memory failure (Blink code 3), follow the guide in the table below.
If Using Original Memory If New Memory Is Added
Reseat the memory.

If reseating the memory does not resolve the problem, try replacing the memory with new memory. Reseat the memory.

If you continue to experience this error code after reseating the memory, the problem may be with the memory itself. Take the new memory out of the computer, put the original memory back into the computer, and then retest it.

If you do not feel comfortable reseating the memory yourself, take the computer to a computer retailer and ask them to reseat it for you.
NOTE: Some memory module errors may allow the computer to start but will then cause the computer to restart and display a blinking error code.

Graphics controller not functional
If you experience a graphics controller failure (Blink code 4), contact HP for assistance.

General system board failure
A general system board failure (Blink code 5) is the failure of a component not covered by the other LED error codes. Contact HP for assistance.

BIOS authentication failure
The BIOS authentication error (Blink code 6) is extremely rare. It is the result of a discrepancy between the BIOS and the hardware that is installed on the computer. This error occurs when the BIOS cannot authenticate signatures from the hardware on the system. The purpose of the BIOS authentication is to be sure that no one has tampered with the BIOS on the computer.
If a BIOS authentication failure occurs, the computer automatically performs a BIOS recovery. If the computer does not automatically recover the BIOS, manually perform a BIOS recovery. To manually perform a BIOS recovery, press all four arrow keys at the same time to cause the BIOS to go to the EFI partition to find and recover the current BIOS.

Jan 17, 2011 | HP Compaq nc6220 Notebook

2 Answers

Black screen wont boot little blinking dash left hand upper coner


One Blink repeating. >>CPU not functional.
Two Blinks repeating.>> BIOS corrupted.
Three Blinks repeating.>>RAM Module Error.
Four Blinks repeating.>> Graphics Card Failure.
Five Blinks repeating.>>Other Systemboard failure.
Six Blinks repeating. >>BIOS authentication failure.

Jul 19, 2010 | HEWLETT-PACKARD HP Mini 110 101Inch Mobile...

2 Answers

Compaq 6735s notebook pc goes to HP screen, but wont boot


Hi,

First you need to determine how many blinks you are getting when you try to power on the laptop.
Check the blinking codes below and reason behind that for HP Compaq laptops

Blinking battery power LED Battery Insufficient charge on the battery
Blink: 1 - Caps Lock/Num Lock - CPU CPU not functional
Blink: 2 - Caps Lock/Num Lock - BIOS BIOS corruption failure
Blink: 3 - Caps Lock/Num Lock - Memory Module error not functional
Blink: 4 - Caps Lock/Num Lock - Graphics Graphics controller not functional
Blink: 5 - Caps Lock/Num Lock - System board General system board failure
Blink: 6 - Caps Lock/Num Lock - BIOS BIOS authentication failure

Plz get back so I can suggest you the steps to resolve the issue.

Dreamkam

May 24, 2010 | HP Compaq 6735s Notebook

4 Answers

My laptop does no more boot up. As soon as i start , the caps lock and the scroll lock lights keep flashing continuously and the fan even does not run.


Well hellonihar, As far as your issue is concerned it seems to be some hardware issue. LED
Component
Error Condition
Blinking battery power LED
Battery
Insufficient charge on the battery
Blink: 1 - Caps Lock/Num Lock
CPU
CPU not functional
Blink: 2 - Caps Lock/Num Lock
BIOS
BIOS corruption failure
Blink: 3 - Caps Lock/Num Lock
Memory
Module error not functional
Blink: 4 - Caps Lock/Num Lock
Graphics
Graphics controller not functional
Blink: 5 - Caps Lock/Num Lock
System board
General system board failure
Blink: 6 - Caps Lock/Num Lock
BIOS
BIOS authentication failure

Apr 19, 2010 | HP Pavilion dv5-1000us Notebook PC

2 Answers

HP DV6110us: 4 beeps, no boot


besides the beeps which indicate a motherboard timing issue. There should be LED blinking codes given on the front LEDs. I will include the blink codes below, but lets try to at least get the system up and running. First, I would like you to remove the RAM sticks from the laptop and just reseat one stick back in the machine. Try to boot with that one stick, if it does not, try the other alone. There have been issues when reseating the ram or re-installing it have temp. fixed the issue. If it does reboot, go to the HP support site, put in your model number of your laptop and download and install an updated BIOS. Below are the blink codes that may narrow down the problem.....

HP DV6000 LED Blink Codes

LED Component Error Condition
Blinking battery power LED Battery Insufficient charge on the battery
Blink: 1 - Caps Lock/Num Lock CPU CPU not functional
Blink: 2 - Caps Lock/Num Lock BIOS BIOS corruption failure
Blink: 3 - Caps Lock/Num Lock Memory Module error not functional
Blink: 4 - Caps Lock/Num Lock Graphics Graphics controller not functional
Blink: 5 - Caps Lock/Num Lock System board General system board failure
Blink: 6 - Caps Lock/Num Lock BIOS BIOS authentication failure

Oct 22, 2009 | HP Compaq Pavilion dv6110us Notebook

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