hi guys, I need really your help! my notebook HP G62 -B35SG . issue: wrote wrong BIOS, now after start there is only black screen. after remove the battery of the BOIS for 1 hour, it shows bios error 502, and black screen again. i tried with key win+B, but it does not work. how should i do to write the original BIOS?
thanks for your reply. the problem is it can not work , press the Win+B, or Fn+win, or Fn+Esc. i donĀ“t know which combination is suitbale to my notebook.
Again: I really don't know much about BIOS or your notebook so I'm sorry if I cannot be of more help to you. Reading valic's post I saw this: So... I don't know... "Several times" may do the trick... Sorry...
what i done: 1 download the HP Unified Extensible Firmware Interface (UEFI) Support Environment ----yes done 2 Execute this under windows and create a HP_TOOLS UEFI boot usb stick -------yes done 3 download the BIOS for my laptop from HP, it is a exe file, extracted it, there is a 01439.fd file, i copy it into Hewlett-Packard/Bios/Current, and rename it as 01439.bin, and 01439.SIG 4 Shut down the laptop, plug the USB stick, hold win + B and power on nothing happend , did i do anything wrong?