My HP DV7 4107 doesn't work. Caps Lock flashing in loop

Hi, my HP (Entertainment Notebook HP Pavillion dv7-4107sl) has a serious problem and has stopped working.
The only signals of life are the Caps Lock (that flashing in loop), the fan and the CD player.
I tried to restore the BIOS through the USB Flash Drive and through resetting the jumper.
The laptop returns to work, but after few hours the problem returns. I don't have any idea how to fix it.
Thanks for the help.
Antonio

Dear Customer,
Welcome to HP Support Forum and we are glad to assist you.
It looks like you are having serious problems with your Notebook.
We will surely assist you with this.
According to the message you have posted I suspect there could be a hardware issue with your Notebook. I would
strogly recommend you to contact HP Technical Support over the Phone for further assistance
Commercial Notebook Support - 1800 334 5144 [Say Business Notebook in IVR and wait for the engineer]
Consumer Notebook Support - 1800 474 6836 [Say Get Tech Support and wait for the engineer]
Hope this helps, for any further queries reply to the post and feel free to join us again
"I work for Hewlett-Packard"
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Regards,
K N R K

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Hello,
my hp pavillion dv4 screen can't launch
my laptop is the same like this
i readed more than one article here about the problem
but i couldn't locate it,
i readed this article
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&cc=us&dlc=en&lc=en&jumpid=reg_R1002_US...
and tried to clear dust, and reset power but also did't succeed
so my caps lock / num lock are blinking together once every about 4 seconds and continuos (never stop)
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i can record my problem as a video if you need this
thank you,
Sayed

You provided a link to the HP provided troubleshooting document. Read what the document says and troubleshoot it just as it says. Post your results here.
Best regards,
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I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can click here for the link.
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TwoPointOh
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Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Caps Lock flashing fix!

Ok I have a HP dv6.
It has had all the usual problems of heating etc. It finally died with the flashing caps lock. This indicated either a problem with the CPU or the motherboard.
I had a CPU that fitted, so I tried that. No luck.
With lots of reading, I found that with lots of thermal cycles, solder can change to a crystalline structure. The "blanket" fix was a strong indicator that it was a bad solder connection.
Ok so how to fix it.
It is called re flowing the solder. You can google it. It worked perfectly for me, so now I have a fully repaired laptop for no cost!
Ok, how to do it.
THIS MAY KILL YOUR MOTHERBOARD! But hay it is already dead, so why not try it. It worked for me!
1 Remove your motherboard from your laptop.
2 Remove all ram, CPU, wires, plastic pads,cooling fan and everything else.
3 There are two chips that contact the heat transfer pipes. They are your target.
4 Wrap your mother board in tin foil. Remove the foil from on top of the two chips.
5 Make sure that only the two chips are uncovered. Everything else must be covered.
6 Pre heat your oven to 200C yep you are going to re melt the solder on these chips.
7 place in the oven for 9 minutes. Now this is the max that it took for me. I tried 8 minutes, and it did to work. 9 was the winner.
8 After 9 minutes turn the oven off and open the door. Do not move, or bump the board. Just let it cool.
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10 enjoy your laptop!
It might me wise to keep an eye on things to make sure that it does not somehow burst into flames.
Good luck. Hope it works for you as well as it did for me.

I have seen this done using a heat gun on the chips also- even a hair dryer. Might be less risk to motherboard than full bake in oven. Anyway-whatever works,right?
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DV6-7010US Caps lock flash, no POST

System was not used for several months. When we tried to use it, the system was extremely unstable and crashed several times with Windows blue screen errors, randomly didn't detect the hard drive, etc. Then it just stopped booting at all, and instead has the orange WiFi light with the caps lock LED flashing once every second (or so) indefinitely. LED error codes list says this is "CPU not functional." Since then, both the motherboard and CPU have been replaced, but the system still gives the same LED error code.
Motherboard was ordered straight from HP Parts surfer, CPU from a 3rd party company with guarantee that item is tested as fully functional. Reports from this forum and others on this system and motherboard replacements are not overly positive. I'm tired of dumping money into this laptop and it not working. Any suggestions would be greatly appreciated.

docminor wrote:
System was not used for several months. When we tried to use it, the system was extremely unstable and crashed several times with Windows blue screen errors, randomly didn't detect the hard drive, etc. Then it just stopped booting at all, and instead has the orange WiFi light with the caps lock LED flashing once every second (or so) indefinitely. LED error codes list says this is "CPU not functional." Since then, both the motherboard and CPU have been replaced, but the system still gives the same LED error code.
Motherboard was ordered straight from HP Parts surfer, CPU from a 3rd party company with guarantee that item is tested as fully functional. Reports from this forum and others on this system and motherboard replacements are not overly positive. I'm tired of dumping money into this laptop and it not working. Any suggestions would be greatly appreciated.
Hi,
Remove the hard drive and boot up. If you can get to the BIOS, the hard drive is faulty. It's highly unlikely that the new board and the cpu will cause exactly the same error. It means that some other component from the system must be faulty.
Dv6-7000 /Full HD/Core i5-3360M/GF 650M/Corsair 8GB/Intel 7260AC/Samsung Pro 256GB
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Hp cap lock flashing black screen

I have hp envy dv6 7229wm windows 8. Cap lock blinking and wirless on/off orange light solid. things that i already did -Hard Reset unplug a/c and remove battery hold the power button for 30 sec-Hard Reset with removing cmos battery-replaced rams with places and tried new ram-cleaned fan out-applied thermo cream to cpu-and ofourse checked that my warraty status: EXPIRED i am a technician with 5 years experience in hardware and software repair. I never had this problem before.i had 4 customers called me last week about this problem and i told them it was above my head.

Hello cantfigureout, Thank you for providing your information, and welcome to the HP Forums! I hope you enjoy your experience! I have read your post on how your notebook computer's keyboard is displaying a blinking cap lock key and wireless light, and I would be happy to assist you in this matter! The blinking light on your Cap lock is indicating a specific hardware issue, which can be found out by following this document on Computer Does Not Start and the LEDs Blink or the Computer Beeps. Please re-post with the number of blinking lights the Cap Lock key produces, and I look forward to your reply! Best Regards

Bug report: crazy keyboard (caps lock flashing)

Hi all!
I had the problem of the "crazy keyboard" and I think I understand the cause.
Mac model: Macbook pro MB134LL/A
OS: Snow leopard 10.6.5 with latest updates
Problem: sometimes the caps lock button flash and the trackpad freezes.
I read similar problems in the forum, without a solution.
I have an admin account on my mac and I installed the software "mobile partner" to manage mobile connections with an internet key huawei e176.
Now I have version 16.001.17.04.51 for the mobile partner, and version 4.23.03.00 for the key drivers.
The "crazy keyboard" problem can happen with these versions and with previous versions too.
I noticed that in "system preferences->network->advanced settings of the installed HUAWEIMobile-Modem" the drivers are set by default to generic apple modem. So I changed with the "huawei mobile connect - 3G modem" drivers but sometimes this preference automatically changes back to generic apple modem.
When the keyboard goes crazy I see that the drivers are set to generic apple modem.
"Crazy keyboard" appears only after installing the internet key, so I think that the cause of the problem is the automatic change of the modem drivers.
How to solve the problem?Change the admin account, so to avoid changes?
Thank you

Javier,
I appreciate the feedback.
I'll try to provide the requested information:
$ cat /etc/release:
Solaris 10 1/06 s10s_u1wos_19a SPARC
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 07 December 2005
X server:
Xsun (at least that's what shows up as the process name)
Input Method framework:
Nothing outside of the OS. The Solaris 10 OS Turkish localization packages were installed along with some OS patches and the Turkish USB keyboard plugged in.
Thank you,
Don
Edited by: 924089 on Apr 3, 2012 4:38 PM
Here’s the problem as best I can explain it with the help of the “/usr/openwin/demo/xev” tool.
With the “Caps Lock” key engaged:
Press and release of the (dotted) “i” key WRONGLY gives uppercase (dotless) “I” letter with “keycode = 59” and “keysym = 0x49”.
Press and release of the (dotless) “ı” key correctly gives uppercase (dotless) “I” letter with “keycode = 19” and “keysym = 0x49”.
Disengaging the “Caps Lock” key:
Holding down the “Shift” key:
Press and release of the (dotted) “i” key correctly gives uppercase (dotted) “İ” letter with “keycode = 59” and “keysym = 0x2a9”.
Press and release of the (dotless) “ı” key correctly gives uppercase (dotless) “I” letter with “keycode = 19” and “keysym = 0x49”.
Summary:
The delivery of the keysym value of 0x49 seems to be wrong for the “Caps Lock” + “i” keys combination. (Shouldn’t it be 0x2a9?)
I have learned that user 925353 has initiated SR: 3-5545975463 reporting this problem.
Edited by: 924089 on Apr 4, 2012 6:30 PM

My HP DV7 4107 doesn't work. Caps Lock flashing in loop

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