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06-08-2010 09:18 PM
My son's Presario has developed a flickering display problem. The top quarter of the screen looks OK, but the bottom three quarters flickers and has a duplicate of the top of the display. When I plug an external monitor into the VGA port, everything looks OK.
The external case looks great, but this problem developed while he was on a trip, so vibrations may have caused a ribbon cable to come loose.
While I was investigating this problem, I pressed Escape during booting and discovered a Diagnostics program. That has a diagnostics log and when I looked at that, it contained a failure of the memory back in January. (I don't know why my son didn't tell me about it.)
I pressed F8 during the boot and was able to run the Windows Memory diagnostics. After a few minutes of running, the diagnostics also reported a memory issue.
So, I called HP support line to try and return the laptop for repair. If the price was reasonable, I would have even paid for the repair. Unfortunately, the guy who I talked with declared that the video problem was not a warranty event. I then waited on hold for a long time (> 30 minutes) to talk to a hardware tech who told me that it would cost $400 to repair the machine. ($400 for a $300 machine! You've got to be kidding!)
Is there a Plan B? I'm not afraid to open the machine up, but not if its going to void the warranty. The tag on the back of the machine says that the warranty is 1 year and we bought the machine last December.
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06-08-2010 09:45 PM - edited 06-08-2010 09:56 PM
I own a computer service & repair business in California. I've seen that problem before on a few notebooks.
It' could be the flat ribbon cable behind the LCD. I replaced an LCD on a customer's laptop once, and your exact problem started on the notebook I serviced. When I removed the plastic LCD trim, I saw that I had not fastened the cable securely. The ribbon cables behind most notebook LCDs have two metal clips that act as locks; they produce a clicking sound when you insert the cable firmly, indicating that it is securely in place.
Another problem could be the LCD inverter. That part only costs $10-15 on fleabay. It's essentially a light bulb. The mere fact that your issue pertains to sections of your son's notebook's display and NOT the entire screen leads me to believe that this may not be the issue. When the LCD inverter reaches the end of it's life, it simply stops producing light to the LCD altogether.
I have a Compaq V2000 notebook stored away somewhere in my home with a problem similar to yours. It wasn't the LCD inverter or the ribbon cable, as I replaced both. My problem could be either the system board or the LCD itself. The only way I'll know for sure is to fork out the money for both and return the part that isn't defective.
If I were you, I would start by removing the plastic parts housing your notebook's LCD and check to see that all cables are securely in place. Check to be sure the other end of the cable is firmly in place on the mother board. Try removing the memory modules and swapping them, although I have never heard of your issue ever being related to memory modules. Issues having anything to with memory modules usually include BSOD (blue halt screen), system crashes, computer beeps or refusal to boot properly, undesired operation or the like.
I hope this is information is helpful. Your issue is not a common one, but I have seen it many times. It's usually the ribbon cable. That's my two cents on that.
Also, I've run into a wall many times with Dell's customer support phone people, while the computers I bought from them were still under warranty. When they would tell me my hardware issue wasn't something the warranty would cover, i'd simply hang up and call back - and the next person I spoke with gladly fixed my problems for me. This involved sending me replacement parts via Next Day shipping, or rushing me a shipping carton to return the computer for service at no cost. Worked every time. Depends on the mood of the person you speak with on the phone. Sometimes you have to be extra polite and say stuff like "please" and "thank you so much". It definitely worked recently with HP, and they sent me a new battery (=
06-09-2010 06:46 AM
I bought my CQ62-105TU last week on 5june ,2010. the notebook is causing intermittent flicker/ blinking which can cause discomfort. going through the HP conversations page i have come know its a perennial hp display ill. simply one cannot
afford to hear such problems after investing Rs.35,000.It seems buying products from worlds No.1 pc brand isnt safe anymore.moreover its even heats up the area where left palm rests.
bloggers please send ur suggestions.
06-10-2010 06:46 AM
Doesn't suprise me with HP. Bought a Pavillion laptop last year. Its been sent back for repairs twice . Screen flickering, keyboard not working and defective hard drive. All covered by warranty, but a major inconvenience. Now the warranty is done and have to pay for everything including charging me to talk to a Rep. on the phone. Now this flickering problem has come back .What a POS.I will never buy an HP product ever again.
06-15-2010 05:15 PM
@ LabyrinthMike: You're welcome. Let us know how it goes.
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@ manish4287: Your flickering issue COULD be the LCD inverter. The warm palmrest symptom you describe is common almost all newer laptops of all brands. What usually happens is the fan underneath the laptop will suck up dust if it's sitting on your lap, on a pillow, a blanket, couch cushion, carpet, etc...and the dust/animal hairs/etc will collect on the inside of the heatsink, preventing the fan inside your laptop from properly cooling the CPU & GPU. This was a horrible problem in Dell's Inspiron 1100, 1150, 5100, and 5150, which resulted in a class action settlement.
Great care should be taken to ensure ANY laptop is only placed on a solid surface, to ensure proper air flow. A table, desk, etc. I strongly discourage anyone from placing a laptop on your lap if your leg/clothing will completely cover the fan underneath your notebook. The fan does not blow fan out of your laptop downwards. To the contrary, that little fan under your laptop sucks air in and the air flows out of your laptop via the side or rear of your notebook.
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@ habsfan66: Dont blame HP. The life expectancy of a laptop is about 5 yrs, but actual user's habits can greatly reduce the lifespan of a laptop's critical components (namely the parts discussed in this thread).
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A laptop that spends most of it's life on a solid flat surface, such as a table or a desk, will experience years of trouble-free operation. I can tell everyone this from experience. I have an older laptop that never moves from the desk it sits on. Although the battery will no longer hold a charge, that laptop has NEVER had a single problem. In contrst, a very expensive HP HDX18t that I tow around everywhere I go constantly has problems. Recently the LCD inverter took a dump on me. I've had to replace the hard drive and the battery also.
06-15-2010 09:15 PM
Before I opened the laptop up, I logged into the HP support website and submitted a support request, describing the problem in as much detail as I could. They wrote back almost immediately saying:
"I appreciate the efforts you have taken in trying to resolve the issue and also for being so detailed in your approach. I sincerely value your time and concern and realize the importance of getting this issue resolved for you."
"Mike, I appreciate that you have forwarded your issue to us and given us a chance to help you in this regard."
"I, on behalf of HP Total Care take ownership of your issue. I will definitely assist you in this matter up to the best of my abilities."
"The main possible cause of this issue is hardware malfunctioning."
"In order to resolve the issue the unit needs to be taken for repair and since the unit is under Normal Factory Warranty the service would be a Free of Cost."
So, I'm now waiting for the shipping box in which to return the laptop to HP.
07-18-2010 12:34 PM
Here's a update on this:
I sent the machine off to HP. Using their web interface, I noted when the machine arrived and when they started looking at it. As first, they said that they reproduced the problem and gave a date when the repaired unit would be delivered. Happy Days!
The next day however, the status changed to "out of warranty" and the service charge was set to $430.84. That is when I got mad. I wrote back to HP support saying that, "If this is the final answer, please send the machine back, at your cost, and I'll open it up and repair it myself. I'm certainly not going pay $430 to repair it. I can replace it for that price. If I do that, it will not be an HP, and I will never buy an HP again." So, there, I played the "I'm never buying your products again card." (I'm not proud of it, but I meant it. I bought a machine from Circuit City and paid for the in-store warranty, because the sales man said that it covered anything that broke. The machine didn't last 6 months. When I took it back, they said, "Well, we don't cover physical damage." When I pointed out that it broke under normal usage, my protests fell on deaf ears. I wrote them a letter saying I would never set foot in their stores again, and there was no response. I was true to my word and I had to smile later when I drove past the store later with the Close Closing sign on it, but I digress.)
HP laptop support wrote back and said "I would like to inform you that once the notebook reached the service center, the diagnosis revealed that the damage was a customer induced damage and that is why it is not covered under warranty.
However I understand that your case needs a more personalized approach. Hence I am escalating the case to our senior supervisor hoping that he might have a better practical solution for the current situation. He will get back to you in two to three business days. If you need further assistance, please reply to this message and we will be happy to assist you further."
He did contact me later and was very happy to help. He looked up the case online, where they had a picture of the misbehaving monitor. He immediately said, "That's not customer induced damage" and sent authorization to repair center to fix it, which they did and the machine arrived on the original return date.
A few days after the machine arrived, I got a call from the senior supervisor asking if the machine arrived and if I was happy with the results, which I was.
So, I think the moral of this story is to keep pushing to HP to do the right thing, and they will (eventually).