My hp pavilion ze4400 will not boot up. It displays 7 or 8 flashes on the Battery Indicator.

Does this indicate a hardware failure?

Disconnect the AC Adapter and Battery from the unit. Hold the Power button down for about 15 seconds. Then without the battery being connected, plug in only the AC Adapter on the unit and check if this powers on the unit. You can also try to reseat the RAM on the unit. You can find the removal procedures on the Service and Maintance guide on www.hp.com for your model notebook. In case the notebook does not work after these steps, it could possibly be a hardware issue on the unit.
Although I am an HP Employee, I am speaking for myself and not for HP.
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My HP Pavilion zv6000 will not boot/recovery

My HP Pavilion zv6000 will not boot/recovery need help

Disconnect the AC Adapter and Battery from the unit. Hold the Power button down for about 15 seconds. Then without the battery being connected, plug in only the AC Adapter on the unit and check if this powers on the unit. You can also try to reseat the RAM on the unit. You can find the removal procedures on the Service and Maintance guide on www.hp.com for your model notebook. In case the notebook does not work after these steps, it could possibly be a hardware issue on the unit.
Although I am an HP Employee, I am speaking for myself and not for HP.
Make it easier for other people to find solutions, by marking my answer “Accept as Solution” if it solves your problem.

Disk utility will not boot using COMMAND R. It won't give me the 'ERASE' option when I open Disk Utility. How do I wipe my hard drive?

Disk utility will not boot using COMMAND R. It won't give me the 'ERASE' option when I open Disk Utility. How do I wipe my hard drive?

If you're truly running 10.6.8, there is no Recovery partition - that didn't come along until 10.7x.
You'll need to use the set of gray discs that originally shipped with your model. If you don't have them, you can always get your serial number from the bottom of the casing and call Apple to get a set of replacement discs. These will run you about $20 + shipping & taxes. Once you have the discs, boot from Disk One and use Disk Utility to erase your HD and then reinstall whichever version of OS X that shipped with your model. No way around of getting the discs.
Clinton

After upgrading to os josemite cs4 applications will not run. Message displayed that I need to install the legacy java SE 6 runtime. Is this necessary to fix the application loading?

after upgrading to os josemite cs4 applications will not run. Message displayed that I need to install the legacy java SE 6 runtime. Is this necessary to fix the application loading?

Found the answer:
Java for OS X 2014-001 includes installation improvements, and supersedes all previous versions of Java for OS X. This package installs the same version of Java 6 included in Java for OS X 2013-005.
installed above and it now works
Blessings

HP Pavilion a1467c will not boot

Every time I try to start my Pavilion a1467c desktop the start button lights up, but the HDD light comes on yellow for about 30 seconds and then goes out. The display comes on with a blue screen with vertical white lines. The OS is Windows XP. I suspect the power supply, but the fan on the power supplie runs. I am looking for advise from someone with more experience.

OK. Let me answer my own question. Other than the blue screen with vertical white lines, the PC was acting like I have seen other PCs act on prior occasions. Upon starting up the computer, all goes well except it will not boot up and the HDD activity light goes out. Most of the time was related to a bad memory card. I opened up the case on the desktop, removed the three memory cards, cleaned the contacts on the memory cards, and reseated them in the slots. I then closed the case, plugged the power cord back in, pushed the start button, and the PC booted up like normal. I have rebooted it several times while updating drivers. It has been running for the past two days without a glitch. Simple fix.

Hp pavilion laptop will not boot up.

I get this error The file header checksum does not match the computed checksum. I'm not able to do anything with it after this screen, it will not boot to safe. What can I do?
I've removed the battery, which is dead anyway; laptop is plugged in. Have tried different power source and that doesn't help.
There is no blinking cursor, etc. I have tried F2 & ran that memory & hard disk diagnosis & nothing seems to be amiss. On the error log I really didn't see any errors.
I don't have recovery disc either but laptop won't boot to cd rom drive so even if I had recovery disc am not sure that would work.
Help please I'm at a loss now of what to do. Thanks.

Does F11 at power on work to boot into Recovery?
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01867418&cc=us&dlc=en&lc=en&jumpid=reg_r1002_us...
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HP Pavilion g6 will not boot or charge

I have a Pavilion g6 with Windows 7. It worked with no problem yesterday, and it shut itself off when the battery ran down. I plugged it in today, and it will not charge, turn on, or respond in any way. Help!

What is the exact model of Pavilion G6 are you using?
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HP Pavilion a6763w will not boot up..

I have an HP Pavilion a6763w that suddenly wont boot up.
I was using it just fine last night, went to use it this morning the screen was black and the CPU fan was running full blast, I could not get it to turn off, the only way to shut it down is to pull the PSU plug.
when you press the power button the fans come on very loud and full blast but never slow down, there are no beeps, you can hear the HDD spinning and the HDD indicator light stays lit solid, however there is no display on the monitor.
I have tried different monitors, i have tried removing and replacing the RAM, I have tried a new PSU, i even found a post about unplugging the multimedia reader but to no avail.
I wonder if anyone can tell me what they think the issue is so that i can replace that specific part of this computer as it was not cheap!
i am linking a video i posted to Youtube so that you can see the symptoms as i described them
video

Let's try a little diagnostic work: Unplug the power connectors from drives and everything else you can, and see if you can get as far as the POST. If that works, then there must be something going on with one of the peripherals. If not, then the signs point to the motherboard itself.
You could always try resetting the BIOS, but that's a slim hope.

MacBook Pro will not turn or or charge, have tried resetting smc, know the battery and charger both work, any ideas?

I've plugged in my MacBook with multiple chargers and batteries and every time the charger light illuminates green although the battery is currently dead, and wont turn on still. My guess is that the port the charger actually plugs into is broken though i've heard this probblem is caused by the motheboard being fried, does anyone have an idea on how I can fix this? - Thanks

We can't help you, for that problem you will just have to take it in for a free evaluation.
Good Luck

T42P. Does not boot/startup. Black screen. All indicators except the battery and power are off.

Hi all,
I am new to the forum and so very desperate for help!
I have a T42P (2373-C61) machine. All of the sudden today, it blue-screened. I turned it off, then tried to turn it back on.
Now, it is not coming up at all. I can not even get to the BIOS or see anything in the screen!
All the lights/indicators are off except these two: the battery/power and the little z (the on indicator).
The NumLk and Caps Lock indicators flash every 15 seconds or so.
The hard drive, bluetooth, and wireless lights are off completely.
Tried getting to the BIOS by unplugging the battery and using the AC only but nothing happens when I press F1 or the IBM button.
Also, tried a suggestion from other users that requires unplugging Battery/AC, pressing Power button 10 times, then the 11th time for 30 sec. Still nothing happens.
No HW/SW was added to the machine recently...
Any suggestions is appreciated..

It can also be the LCD itself...
BTW, if the graphic card has failed that equals motherboard replacement since it's soldered to the planar...
Let's hope not...
Good luck and keep us posted.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Hp pavilion 21 will not boot

One day, the computer booted up so slow it never eventually came up. Then upon reboot, it never got past the beginning screen (black with blue circle rotating). We have no ability to get onto the computer anymore.
This is a replacement of an original Touchsmart screen which also failed after 3 months.

Hello @LEBS_Paul,
I understand that your All-in-One computer is not able to boot past the start screen, and I would be happy to assist you in this matter!
To successfully boot your computer into Windows, I recommend following the steps in this document on when the Computer Does Not Start (Windows 8).
If the issue persists after completing all of the steps in the document above, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
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Pavilion dv6 will not boot up.

When I start my Pavilion dv6, the fan starts, the on key light on, light on f12 key and on caps lock key.
Screen remains blank.
Have tried taking out battery, and unplugging. Wait and power again. Same thing keeps happening.
HELP please.

Hi Thesaloniki,
Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Pavilion dv6 Notebook and getting a blank or black screen on startup. Try performing a hard reset. When performing a hard reset please note remove any and all USB devices, and remove memory cards from the card reader slot. Disconnect all non-essential devices. If that does not help try to turn on the computer you start to press F2 repeatedly till the menu opens. You can do a diagnostic test.
I would be happy to assist if needed as there are many models of Pavilion dv6's could you respond with the mode.. How Do I Find My Model Number or Product Number?
Please respond with which Operating System you are running:
Which Windows Operating System am I running?
Please let me know.
Thanks.
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Hp Pavilion elite will not boot

My pavilion wont boot after an electrical storm. I think there's something wrong with the power button. There is a green light on the back that isn't flashing, but staying solid green. Nothing's happening when I press the power button, no fan, no response from the monitor.

It could be the power supply, shorted device of any kind attached (bad printer, flash drive, keyboard, mouse, network connection), memory problem, video card fan not spinning and the video card could have overheated, bad capacitors (rounded or leaking a brown or dark substance). The first thing you should do is make sure it is not under warrantee. If it is, contact HP. If it isn't, remove the cover and inspect the board for bad capacitors, fans not turning, disconnect all non essential items like the hard drive, DVD, floppy if you have one, all external devices (yes the monitor) and turn on the computer. Does it appear to stay on? If yes, shut it down by holding in the power button for 5 or more seconds or flipping the power switch on the power supply or pulling the plug. Connect the monitor and then one item at a time leaving the hard drive with your important data as the last item. If it didn't stay on. Try to use only one piece of memory and try each memory slot, try the next piece etc. If that doesn't work, the best guess is the power supply (if you have an ohm meter - test the power supply first).
Reminder: Please select the "Accept as Solution" button on the post that best answers your question. Also, you may click on the white star in the "Kudos" button for any helpful post to give that person a quick thanks. These feedback tools help keep our community active, so you receive better answers faster.

HP Pavilion dv9207us will not boot up

This laptop is less than 2 years old. One day, it locked up. Upon hard reboot, nothing showed on LCD. Connected an external monitor, showed bios coming up, etc. However, the graphics were all messed up. On the external monitor there are large green blocks, which obstruct the viewing area. LCD panel of laptop does not show anything, however, it is powered, and I can see backlight.
With the help of external monitor, I booted up in safemode. However, nothing doing as expected. When tried to boot up in normal mode, I was informed to use recovery disc. I tried to use a clean copy of the DVD that I had made, but did not work. Error: Restore7.exe application error. Called HP who shipped me a recovery DVD - same results.
I ran diagnostics on RAM and HD. They were both 100% pass. I took HD out and plugged into an adapter - could back up data files, ran Norton Enterprise Antivirus, etc. Everything was fine. I was able to back up data and did not find viruses or trojans. Finally, I put the HD from HP laptop into another laptop, and I was able to bring up the Vista Home Premium and operate it as I was able to operate it before.
Finally, I've researched on the net about this issue. I've narrowed it down to NVIDIA 7600 card that is populated on the motherboard. I've noticed that this was an issue on AMD processors of the similar dv9000 series. My motherboard is Inteal Centrino Core Duo G73M Chipset with 256 MB Graphic Video RAM memory.
I've called HP and they inist that the problem has been isolated to AMD based motherboards. I do not believe that! I have the same symptoms in the same timeframe that others had experienced.
What are my recourses?

Look at Reflowing which has become somewhat of an art. There are hundreds of videos on You Tube showing different procedures...if you know someone good at this sort of thing.
http://www.youtube.com/watch?v=3MGvJCMQFis&feature =related
http://www.youtube.com/watch?v=bnkQNmKauEc&playnext_from=TL&videos=iwVYWjDuwhA
http://www.youtube.com/watch?v=w45tZPVcj4c
http://www.youtube.com/watch?v=vR8L3B3eDr0
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HP Pavilion s3500t will not boot

HP Pavilion s3500 failed to start. The monitor is working but show no signal. Switched RAM and the fan just runs at high speed. What else can I do to try to get the sistem to start?

So did it prove to be a failed power supply or was it a motherboard issue? It would be helpful if you would post, if you see this.
Also, why the change in RAM - is that supposed to be a solution to a motherboard issue?
Today my s3500t failed to provide any response at all to power, and the suggestion from support was also to unplug the power supply from the motherboard and try again, to see if it was not a power supply failure but a motherboard issue.
However the connection of the 24 cables to the motherboard from the power supply was far too tight to try and remove without risk to the motherboard, so we just went with a power supply replacement, which apparently it is 98% of the time.
The manual had no instructions to the support guy as to whether there was a way of removing the connector innvolving a release catch of some kind, so we assumed there wasn't. Possibly a pair of pliers would have done the trick, at some risk to the motherboard.

My hp pavilion ze4400 will not boot up. It displays 7 or 8 flashes on the Battery Indicator.

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