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HOW CAN I RESET MY HP PAVILION ?

MY SCREEN HAS GONE "WONKY". I DO NOT KNOW WHICH "F" KEY TO HIT TO GET TO THE COMMAND SCREEN.

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Turn on or restart the HP laptop and press "F11" until the computer boots to Recovery Manager

Posted on Dec 11, 2016

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SOURCE: need f key instructions to reset hp pavilion ZE

No key needed, just boot from the recovery cd that came with the laptop when you bought it and follow the instructions on the screen.

Posted on Oct 28, 2009

joecoolvette
  • 5660 Answers

SOURCE: My HP pavilion g7 laptop's screen is gone dark,

Primer first, jhb4954;

An LCD screen cannot produce light. It needs an additional light source.

http://solutions.3m.com/wps/portal/3M/en_US/Vikuiti1/BrandProducts/secondary/optics101/

A Backlight is the additional light source.

A Backlight can be a CCFL or a series of LED lights.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

(Average size of a CCFL is 2mm Thick, and Length is almost as long as the LCD screen is high. { 2mm is a little more than 1/16th of an Inch.
.0625 = 1/16th of an Inch. .0787 = 2mm )

A screen Inverter is used to convert the power (Electricity) from the laptop, for the LCD screen, and Backlight.

A small circuit board approximately 3/8ths of an Inch in Height, and 3 Inches in Length. (Varies as to screen Inverter model )

Located behind the Display Panel Bezel, and mounted at the bottom of the LCD screen.
Usually mounted with one Philips head screw, and has two cables going to it.
Video Cable, and cable to the Backlight.

(Plastic thin frame in front of LCD screen, and resembles a picture frame, is the Display Panel Bezel. HP's name.
The LCD screen is the Display Panel )

Primer over.

The HP Pavilion G7's series came out with EITHER using
CCFL, OR LED lights for backlighting.
Just depends on what model number it is.

[ HP = Manufacturer
Pavilion = Model Line
G7 = Model Series

In the white Service Tag located on the bottom of the laptop, is P/N.
This = Product Number
HP's model number ]

1) NOT all LED backlit LCD screens use a screen Inverter.
2) a screen Inverter is the problem 90 PERCENT OF THE TIME.

Which leads us to several options;

Option 1:
Your Pavilion G7 LCD screen uses a CCFL for backlighting.
It also uses an Inverter. (screen Inverter)

90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter.

A relatively inexpensive part. It is also MUCH more easily accessed, than trying to replace the Backlight. (And much cheaper than replacing the LCD screen)

Test a screen Inverter? Requires a sensitive multimeter. Read - fairly expensive,

http://www.fonerbooks.com/test.htm

Because of the low cost, ease of accessing to replace, and lack of proper test equipment, most users at the consumer level just replace the screen Inverter.

A parts changer type of repair granted, but when viewing the alternatives this may be the only viable solution.

[ Note*
An LCD screen and a screen Inverter are a MATCHED UNIT.
When replacing the screen Inverter make SURE you get the proper one]

Screen Inverter replacement doesn't repair the problem?
Then the decision is made whether to attempt replacing;

A) The CCFL, (Or CCFL's { 2 }, if the model uses it ),
Or,
B) Replacing the LCD screen as a unit.

The CCFL is a Fluorescent bulb. Means it has Mercury inside.
It is also VERY thin in Width. Means it can be broken easily.
It is also more difficult to access;

Primer:
An LCD screen is composed of layers. This can be seen in the first link I posted.
These layers are kept together in a specific pattern, by the Screen Frame. (Left to Right, Top to Bottom, as well as the layer's order )

A thin metal frame which surrounds the LCD layers.

[ Two styles of Screen Frame used, to my knowledge;

1) Two piece. One Top part, and one Bottom part. Resembles two picture frames put together, but they each have a lip like a cake pan.
One slips inside the other.
Small countersunk head screws hold the two parts together.

2) Four piece.
Top, Bottom, and two Side pieces. Uses countersunk head screws also)

The CCFL is usually on one side, and right under one of the Screen Frame frame rails, (Unless a dual CCFL model. One on each side ),

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/


{ Note* Sometimes a CCFL is not offered separately from the LCD screen, by looking up it up with the laptop model number. In this case a match is made, by using any identifying manufacturer product codes on the bulb ]

Option 2:
Your Pavilion G7 uses an LCD screen with LED backlighting,
AND it uses a screen Inverter.

Suggest replace the Inverter first.

Then if this does not fix the problem, replace the expensive LCD screen.

Option 3:
Your Pavilion G7 uses an LCD screen with LED backlighting. Does Not use a screen Inverter.
Replace the LCD screen is the only option.


Several HP Pavilion G7 LCD screen models. Some with CCFL, some with LED,

http://www.screenaid.com/hp-laptop-lcd-screens-pavilion-dv7-series-c-1204_16810.html

This is HP Support > HP Pavilion G7-1075DX Notebook PC > Manuals download page,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lang=en&lc=en&product=5093430&

Left-click on the first file listed, for a free Service Manual, for the
HP Pavilion G7 series of Notebook PC's.

(I just picked a model number to access the Service Manual, for the entire model series. Just from my experience )

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name it may take up to 30 seconds, before the first page comes up.

(Took 10 seconds using medium speed DSL connection, just now)

If you wish post the Product Number in a Comment, and I will guide you in replacing.

Regards,
joecoolvette

Posted on Apr 18, 2012

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1 Answer

UNLOCK BOIS ON HP 8460W


Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
As the computer is booting repeatadly press the F8 key as the computer is booting If done properly the user should get to a screen similar to the below screen. Select the option for Safe mode command prompt only Windows Advanced Options Menu
Please select an option: Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode Start Windows Normally
Reboot
Return to OS Choices Menu Use the up and down arrow keys to move the highlight to your choice. select safe mode with command prompt Then type at the C:\> prompt: type

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter. Finally type:

Quit

and hit Enter one last time to quit DEBUG back to the C:\> prompt.
Now you're ready to reboot your PC, and press the appropriate key or key
combo (look it up in your motherboard manual if you don't know it) to access
your BIOS Setup. Youll notice the password is gone. If this fails try typing At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)

A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
G <ENTER>
Q <ENTER>
Basic BIOS password - works 9.9 times out of ten
If this fails you will need to Select safe mode with networking to download you could download all of these or just one save them to a usb drive for later use if one fails to remove the password http://www.tech-faq.com/reset-bios-password.html At some stage you might need to press Ctrl+Enter rather than just Enter if on a Dell Latitude E5410 http://majorgeeks.com/CmosPwd_d239.html A CMOS BIOS password recovery tool Editors note: This tool should only be used by experienced computer users. Please see the enclosed read me if you would like to run it from Windows. Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus.

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1 Answer

How to get BIOS hashcode for hp Pavilion zt3000 notebook


Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
As the computer is booting repeatadly press the F8 key as the computer is booting If done properly the user should get to a screen similar to the below screen. Select the option for Safe mode command prompt only Windows Advanced Options Menu
Please select an option: Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode Start Windows Normally
Reboot
Return to OS Choices Menu Use the up and down arrow keys to move the highlight to your choice. select safe mode with command prompt Then type at the C:\> prompt: type

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter. Finally type:

Quit

and hit Enter one last time to quit DEBUG back to the C:\> prompt.
Now you're ready to reboot your PC, and press the appropriate key or key
combo (look it up in your motherboard manual if you don't know it) to access
your BIOS Setup. Youll notice the password is gone. If this fails try typing At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)

A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
G <ENTER>
Q <ENTER>
Basic BIOS password - works 9.9 times out of ten
If this fails you will need to Select safe mode with networking to download you could download all of these or just one save them to a usb drive for later use if one fails to remove the password http://www.tech-faq.com/reset-bios-password.html At some stage you might need to press Ctrl+Enter rather than just Enter if on a Dell Latitude E5410 http://majorgeeks.com/CmosPwd_d239.html A CMOS BIOS password recovery tool Editors note: This tool should only be used by experienced computer users. Please see the enclosed read me if you would like to run it from Windows. Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus.

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2 Answers

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If nothing shows up on the screen after a minute shut down, restart & kep hitting the F10 key
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If the screen appears pick a recovery job to restore your computer to a day when it worked well last

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Print spooler service is not running


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you will see Black window on screen
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You need an XP installation disc to boot from and allow you to get into the recovery console for a windows system boot file fix. If you know someone who has a Windows XP disc, you can borrow it, you are not re-installing, the tip below is just to fix the boot file.

Windows Start-up Errors
Step one, you need a Windows Installation CD. If you only have a recovery disk set like the ones from HP or Compaq they will not do what you need done. Under normal circumstances however, you can use a Dell disk because the Operating system is on a stand-alone disk. All retail versions are also acceptable as well as upgrade disks. For a rule of thumb, if the disk has the Microsoft hologram it should work.
While the computer is first starting up and you see the manufacturers splash screen, tap F12 (some computers it’s F9, others it may be another key, you may have to watch and see if the computer lists the key strokes for getting to the boot menu. If you still cannot find it, boot into the BIOS settings and change your boot order there. Save your settings and exit, the computer will now seek the cd rom as its boot source first.
Place your Windows disk in the computer and start it up. When you see the test at the top of the page “Press Any Key To Boot From CD” Just hit the space bar to activate. The next screen you will see will most likely be a Windows setup screen, when you see this press the “R” key to get to the recovery console. It will get there, it may take a little time, patience. Once it loads you will be given a choice of Windows installations, there should only be one, if there are more, always pick number one. It may ask for an administrators password, if you have not set this particular password, then just leave it blank and press enter. The next prompt you see is:
C:\Windows>
You need to type the following:
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You are now at the ROOT of the drive, this is where basic commands can be given and changed. You should now see the following:
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Now type the following:
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Hit the enter key.
The chkdsk /r command also includes the P command and will also look for lost recoverable information in bad sectors.
There are occasions depending on how corrupt the system is, that this process could take several hours, so be patient with it.
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1 Answer

Need f key instructions to reset hp pavilion ZE


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If that fails use F2

I think I posted that to you alread but just making sure.


Thank you for choosing FixYa!



Az.

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