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06-28-2011 11:55 AM
I have a Presario F756NR that was running Windows 7 64-bit. I upgraded the BIOS from F.08 to F.0A. The utility claimed that the uprade was successful. When I rebooted, the computer wouldn't POST. Every time I turn it on, the power light and fan come on and I can hear the CD drive doing something. But the screen stays completely blank and the hard drive light doesn't show any activity. There are no beep codes or flashing lights anywhere.
Is there a way to fix this, or is it toast?
I deleted the recovery partition when I installed Windows 7, but I have the recovery CDs. Is this helpful at all?
Solved! Go to Solution.
06-28-2011 12:38 PM - edited 06-28-2011 12:43 PM
Sorry to read about the problem you are experiencing. To the best of my knowledge, your PC is only good for parts (except the motherboard).
The reason it happened is because you flashed the BIOS in Windows 7 with a BIOS flash written for Windows Vista, and it is a shame that HP doesn't warn folks of this--about the importance of only running a windows based flash on the operating system it is supported in.
You upgraded to W7. You probably then read the BIOS release notes that show a fix for potential issue in W7.
You flash the BIOS. The BIOS flash seems to have run fine. You restart the notebook. Bricked.
You are not alone. Dozens of folks have posted on this forum with this scenario. I read all the posts and I believe every one flashed the BIOS in W7, and the BIOS was only written for XP and/or Vista.
Unfortunately, recovery disks will not help in this situation.
Think of the BIOS as a spinal cord that connects the computer's brain (CPU) with its body parts (hardware). The failed BIOS flash was the equivalent of breaking the PC's neck, resulting in paralysis, and death.
06-28-2011 01:25 PM
There are folks that have attempted to repair the BIOS, but normally they are unsuccessful.
I recommend you PM HaggisCat who seems to have a very good working knowledge of what you can do in an effort to fix the BIOS. Send him the link to this post.
HP will only replace the motherboard, and I would think it would be more prudent to buy a new notebook because replacing the motherboard won't be cheap.
06-28-2011 07:25 PM
There are two MoBo's available, remove your RAM and look at the part number, it's usually underneath the RAM and it ends with -001. It will probably be 461861-001 or 461860-001.
A new or a used MoBo will be the only alternative and they are inexpensive. If you get someone to disassemble it for you, the labour will get you, so it would be best to do it your self. You will also need some IC Diamond thermal compound for the CPU and GPU. IC Diamond is really easy to use.
Here is the link where I rescued my HDX 18, but this did not work on my dv8 and it probably won't work on yours, but here it is anyway.
Follow the instructions on the very first post and in that section. In your case your BIOS file is : 30EAF0A.WPH. Rename that to 30EA.BIN or even 30EA.WPH.
You will have to extract the BIOS file twice to get to the correct WPH file.
The other thing is to buy a pre-programmed chip, remove the old one and solder on the new one. The new chip will be missing the serial number and MoBo ID numbers and you will have to send to an HP authorized service depot to have the MoBo tattooed. This can get expensive and you have to buy the soldering equipment, so going to e-bay and getting another MoBo is probably the best solution.
If you need help removing your RAM or disassembling your laptop, PM me again and I should be able to help you with that.
I will copy and paste this answer in your thread too.
06-29-2011 06:03 AM
If you're in the USA find a 3rd party repair facility with a good reputation like: AQSTECH.com they will do the repair for $99.00 + shipping.
Taking a chance on Ebay junk is not worth your time.
Trying to keep your original motherboard if possible should be your #1 goal. Having it repaired via using AQS or replacing the BIOS chip is your best bet. Replacement of the BIOS chip is not garanteed to resolve your issue... If you're good with soldering, then it may be worth the risk as a first option.
06-29-2011 08:12 AM
Does AQTECH have the HP DMI utility to tattoo the motherboard if the BIOS chip is replaced ? If markrog goes with this option he will have this (see screen shot) with a pre-programmed chip on boot up. The laptop will continue to function normally, but he will not be able to use his HP recovery disc's.
Here is Canada with my dv8 the nearest HP service centre with the DMI Utility was 3000 miles away and I did not want to pack up my expensive laptop and send it out. Apparently any Best Buy is an authorized HP center in the USA, so it may be more convenient _ something to think about.
I agree that buying a system board from e-bay may not be the best option, if he can find a third party vender out side of e-bay, then that would be better. If you note though, that many of the new system boards on e-bay come from China _ this is acceptable since even the ones that are sold in the US are made in China, very little, if any of the computer is made anywhere but in China.
06-29-2011 11:05 AM
Thanks, everyone, for explaining the different options. It looks like any repair would cost me >$100 and a lot of time, even if I buy a used motherboard on eBay. My Presario is 4+ years old, so I'm not sure it's worth that kind of investment. And I wiped the hard drive prior to the BIOS incident, so I don't need to get any files off of it. So, I decided to retire the Presario and buy a new (and much, much better) laptop from the Dell factory outlet for $489 (shipping included).
If the Presario were newer, I think I'd try to fix it. Instead, I'll sell it for parts. Maybe I can get back some of the money I paid for the new machine. :-)
Thanks for making the options clear! You all provided very good information.