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.
9 Now reinstall the board.
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?
Kudos on your successful repair and for sharing!
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Similar Messages

CQ57 caps lock flashes

CQ57 366SA It started with a failed bios update. Caps lock flashes twice. Tried and failed to recover following steps found on this site. Now caps lock only falshes once. Still no boot. Help needed please

Hi,
If you have an option to roll back to previous BIOS version, then you can try it. After that if the issue still persists with 1 flash on the caps locks, then its an issue with CPU which you have to get it checked.
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HP Pavilion DV6 blank screen caps lock flashing continuously

My laptop was working fine last night, this morning the screen stays blank, caps lock flashes once every 3 seconds or so continuously, the wireless light is solid amber, no other lights are on. I've tried a hard reset to no avail.
When I power it on it sounds like the fan spins up and it tries to boot, then 2 seconds later it is quiet and nothing happens, if I close the lid without powering off the outside light on the top of the case stays on so it is not shutting down or in sleep mode when the case is closed.
I've looked at a bunch of troubleshooting and none of the info seems to match this, any help would be appreciated.
Thanks

a single CAPS flash is a CPU failure, you can try following the below steps but it will most likely need to go in for repair
power drain;-
-remove battery and power cable
-hold power button for 20 seconds
BIOS recovery;-
-hold windows+B
-turn computer on keeping those keys held down
if the light is still flashing at this point you'll need to contact HP, if it is in warranty then the repair should be free, if not there will be a cost
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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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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

Can I turn of the 'Caps Lock' flash light?

I'm using the caps lock key for ctrl.
And the flash light on the caps lock key seems not good.
Is there any way to disable that function?
Thanks.

J....C... It woks as I meant.
Sorry.

Caps lock flashing (hp probook 4740s)

Hello i'm new here with an annoying problem
couple of months ago i had an issue with bios (product informantion not valid) this issue appeared after i tried to install windows 7 but failed but after 100000 attempts i finally got windows 7 on my laptop and yea everything was fine until some weeks everytime i press on the power button my screen stays black and my caps lock LED flashes and after some seconds my fan goes on max. rotation i dont know what to do.. but this might be a BIOS authentication failure
i am not sure.. i hope someone can help me out i would really appreciate it
and this is an video:
http://www.youtube.com/watch?v=Gf0t15ky6LI
please help me guys
thanks in advance.

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.
HP ProBook 4740s Notebook PC Support
TwoPointOh
I work on behalf of HP
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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
Testing - HP 15-p000
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Currently on Debian Wheeze
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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

Caps Lock Flashing - No Boot up ????

May i just say i have just experienced this myself... i was like oh **** after reading all about the blink codes etc... Has anyone tried using a USB (dongle) flash drive and tried booting up with that in the USB slot.... My computer then booted no problem... so to all that go on about the blink codes i.e 1blink cpu etc are WRONG.. Each computer can be different i suppose but the dongle USB in to BOOT brought my computer back from the brink of trash..!! it is now being checked for RAM issues so i am not fooled by wrong comments made by amatuer techies..!!! NO OFFENCE more of a Lesson i guess..
Those with the same problem i suggest trying it..!!! BOOT with a USB Flash Drive in the USB slot, the one next to the AC Power lead slot..!!! All the best but it is definitely fixable i believe..!!!

bamaboy wrote:
Hi:
I recommend that you take your computer to geek squad. They are located in best buy. Good luck.
Again....we don't know where the poster is located and your advice isn't on sound ground...so don't tell them unless you know their location to better help them.
I am a Volunteer to help others on here-not a HP employee.
Replies aren't online 24/7 because of Time Zone differences.
Remember in this Day and Age of Computing the Internet is Knowledge at your fingertips if you choose understand it. -2015-

Dv6 flashing caps lock

Hi , i am looking at my step sons laptop , its a DV6-3113sa , on power up the caps lock flash's once on pause flash . the wifi light is on steady , from other forums it looked like a faulty CPU , i have replaced the processor ( and removed two years of fluff from the cooling fin's ) but no .. still the same .
i could do with some pointers on this one ??

The following weblink might help you to understand the root cause by understand the LED blink codes:
HP Notebook PCs - Computer Does Not Start and the LEDs Blink or the Computer Beeps
Provides procedures for resolving problems identified with blink codes or beep codes during startup.
I am an HP employee.
Regards,
Vidya
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HP Pavilion g6 Caps Lock Blinking 3 Times

Hello,
I have a HP Pavilion g6 running Windows 7. Recently, the screen went blank with the caps lock flashing 3 times. Discovering this is a memory module issue, I reseated the memory modules, which solved the problem. A few hours later, the problem recurred. Every time I've reseated the modules, the computer boots up and runs fine, but I can never make it through a full Windows memory diagnostic without the problem recurring. I've tried many different combos, including swapping the modules and removing one or the other, etc. I can surf the web and the computers seems to be stable, but when I perform any taxing tasks (i.e.- running a diagnostic, checking Windows Experience, etc.) the problem recurs. Will replacing the modules with new ones solve the issue?

Hello again ladylady.
In all honesty this has me stumped. You've replaced both the motherboard AND the memory. However, the issue persists. The only major component of the machine which hasn't been replaced is the CPU and I don't see how that could cause the notebook to throw an error related to the RAM. It could also be a false positive but there is no real way to determine that. Another possible cause I could see would be an issue with the BIOS. However, if you can't boot the notebook you're not going to be able to flash the BIOS either.
The only thing you could do at this point is let a technician take a look at the computer in person. Many times local shops will give you a diagnosis while in the store. I suggest taking it to a shop such as this and letting them give you a second opinion. You could also contact HP Support (especially if this notebook is in warranty) at 1-800-474-6836 if you're in the US/Canada. If you're in another part of the world you'd need to visit HP Support Worldwide to get your region's contact information.
If you have any questions please don't hesitate to ask. I hope you have an excellent weekend!
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Laptop Black screen flashing Caps Lock

Hello. I have a HP ENVY 17-j130ea which i purchased a couple of weeks ago and decided to put a mSATA SSD in there for the cache drive.
I installed the mSATA drive, but when i put it back together i forgot to put the HDD in.
When I turned it on it came up with a message saying there was no OS installed then the screen went blank.
Now when i try to turn it on with or without the mSATA or HDD in, the screen stays blank and the caps lock blinks twice every three seconds.
I have tried leaving it for 5 minutes, I have unplugged it, taken the battery out and held the power button down for 1 minute, I have made a bios recovery key and turned it on with the 'Windows' and 'B' button held down and it does the exact same thing every time.
TLDR; I put a mSATA drive in my laptop and it is giving me a BIOS error and no matter what I do, I am unable to fix it.

I have a little more to add
If I turn it on normally, nothing happens on the memory stick (no lights or anything)
If I turn it on while holding down Windows and B, the memory stick turns on after about 15-20 seconds, the light flashes for about 5 seconds then it stops flashing, it just sits on a solid light.
Its almost as if it is searching the memory stick for the files but fails to find them.
I used sp65000.exe to create the recovery stick

Hp g62 flashing caps lock

Hi folks!
I have a g62-339wm laptop that I purchased about a year ago and out of the blue it will not boot or even post anymore. Screen is blank also, all it does is the caps lock led flashes once every 5 seconds. No screen or beeps the fan turns on tho:/
I've searched for this problem and all I can find is issues when the caps lock and number lock both flash at the same time not just the caps lock.
Any ideas?
Thanks in advance!!

Hi
Please find the Weblink given below might help you to fix your issue.
Troubleshooting LED Blink Codes or Beep Codes During Startup or Boot
How to Troubleshoot Problems When a Computer Does Not Start Up or Boot Properly
Let us know how it goes!
*Although I am an HP employee, I am speaking for myself and not for HP.
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Quick flash of the Num Lock, Caps Lock and Scroll lock, and keyboard freezes temporarily

I have experienced a Quick flash of the Num Lock, Caps Lock and Scroll lock, and keyboard freezes temporarily. This occurs a few times a day. When the Num Lock, Caps Lock and Scroll lock flash i cant typ for a second the keyboard doesnt register the strokes. Is thsi just a hardware clitch or coudl I have a virus? What is teh solution?

Hello Razm14,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you are experiencing an issue where your computer freezes and the Scroll Lock, Caps Lock and Num Locks keys flash and you are unable to work until they stop. I would be happy to assist you, but first I would encourage you to post your product number for your computer. I am linking an HP Support document below that will show you how to find your product number. As well, if you could indicate which operating system you are using. And whether your operating system is 32-bit or 64-bit as with this and the product number I can provide you with accurate information.
How Do I Find My Model Number or Product Number?
Which Windows operating system am I running?
Is the Windows Version on My Computer 32-bit or 64-bit?
Please re-post with the requested information and I would be happy to provide you with assistance. Thank you for posting on the HP Forums. Have a great day!
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Caps Lock flashing fix!

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