My laptop hp pavillon dv6700 can't entering to the bios, the screen stay black or freezing

You will have to replace the HDD

Boot hp pavillon zd8000 with usb is possible.simply plug the USB flash drive with iso and reboot, then press F10 navigeyt Boot Order Mark hard drive, hit enter, Highlight your usb and press F6 so usb was on top of the press F10

Good for you!!!

base on the noise changes and beeps you got a problem from your video memory.

Looks like the post itself fails on the system from what you have told here. Its easy to reset the bios. Download the actual bios flash program on a completely formated usb drive. Fix the usb on your laptop and keep fn+esc keys pressed and switch on the laptop. It will rewrite the bios and once rebooted the system should work. Good Luck.

try to run the hdd test in the bios page and see what it says. if it says no ide device found, try to reseat the hdd.

looks like a BIOS configured password. You can try opening up the machine, and locate the BIOS battery to remove and wait a couple of minutes, say 2 mins before re-inserting it again.
Hopefuly, It should reset your bios config and let you get past that screen.

Cheers
Wats

check in bios if its there in the bios screen as well the screen has cracked

if u r using laptop then u need to update with latest bios version so u can download the bios update file from the site of the laptop brand example if ur using hp lap then go for hp.com to download the latest bios update. Hope this solution is helpful for ur prob.

i afraid that cause by hardware, but try to remove battery and only use the power. or press F2. if prsseing f2 the new screen(bios) open try restart and press F8. tell me is it work or not