HP Pavilion zd8000 wont turn on, just blinks on and off
I was attempting to reset the BIOS on this laptop by removing the battery. when i put it back together and pressed the power button, the power button led comes on and stays on, all the other lights blink on and off, as well as the fan, the hard drive (making a wheezing sound) all blink on and off repeatedly and the only way to make it stop is to unplug it and take out the battery. Please help.
Re: HP Pavilion zd8000 wont turn on, just blinks on and...
They are trash period and even though its an old post I feel the need to complain about this model.. Video circuit issues, Adapters, And charging circuit problems are coming out of the woodwork for these monsters.. If you go to www.hpnotebooksettlement.com you will find out who we are and how we got involved.. (Althogh we are not listed).. (Better this way..
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Try resetting the BIOS, 1) Turn off the Laptop, remove the battery and unplug the power cable, press the power button to such the remaining power out. 2) Remove the centered back cover panel (square/rectangular section) to expose the internal board (DONT TOUCH ANYTHING) 3) Locate the cmos battery on the internal board (a medium sized battery coin (silver)) 4) Remove that battery coin, turn over the laptop, plug in the power and start it up, after it says that the BIOS has been reset, turn it off. 5) Turn off the Laptop, remove the battery and unplug the power cable, press the power button to such the remaining power out. 6) Turn back over the laptop, put in the battery coin and screw the panel back onto the laptop, making sure its pressed in and is flush with the rest of the body. Put back in the screws for the panel. 7) Turn on the laptop. It should not beep and work fine.
This is a state your BIOS corrupted. Re-installation may not be successful. Need to re-program the chip with original BIOS.This process is technical and need expertise in that. I really don't know a BIOS reset will work for you. There is some steps you can try Remove laptop battery and power cord. Press and hold the power button for 2-3 minutes. Put back battery and plug in power cord and start. Remove the CMOS battery and all power in sources(laptop battery& AC adapter) and short the two terminals in the CMOS battery holder with a screw driver or similar thing. Then put back everything and press power button. I am not sure that these steps will bring your system into a working state. try these steps before going to a re-programming Hope this helps
The first thing I would try is a hard reset. Remove the battery, AC,
hard drive if you can and memory sticks. Now hold down the power button
30 seconds. Now put one stick of memory and the AC not the battery back
on and power up. If you get to the "no bootable device" screen then put
it all back together and try again. After hibernation sometimes it gets
"stuck" and a hard reset is needed.
You would have to reset the whole bios to default which maybe something you cannot do. The only other method would would be to take the laptop apart and remove the battery that keeps the motherboard BIOS memory powered. It should look like a large watch battery. Remove for 5 to 10 seconds, and replace. Then put the laptop back together and that should reset the BIOS, password and all.
Hi, it is more than likely a moherboard issue. I had an MSI notebook with a similar problem, pressing the power button multiple time when turning on solved it temporarly. You may also try resetting the bios (remove battery, unplug, remove backplate => remove small battery for about a minute then put back together). If everything fails then you could try replacing the motherboard. Good luck!
To reset the bios in a laptop you need to unplug the power supply and remove the battery. Once you do that press and hold the power button for 45 seconds then put the battery back on and plug it in and then try starting it. Everything in the bios will be reset to the factory.