However, I recently ran into the following HP site: h10025.www1com/ewfrf/wc/software Category?
os=2093&lc=en&cc=us&dlc=en&sw_lan g=&product=3559331#N345 I chose Vista from the list of OSes (as that and XP were the only options available) and the site advised me that a BIOS update was available for my laptop.
In this case, you may try another image file or another USB flash disk.
Normally power on the laptop after recovering the BIOS and you will see the Compaq logo appearing again.
I tried to flash my HP Compaq CQ35-240TX’s BIOS to F.15 but unfortunately failed. When I restarted (powered off then boot again), this is no response any more: the hard disk and caps lock’s LED keep blinding. I will introduce the procedure to crisis recovery my HP Compaq laptop. (the file may be different depending on the model)4. Push the Power button as normal to power on the computer.10.
There are just too many unknowns and jacking up your BIOS means your laptop is now a heavy paperweight.That would be very beneficial to me as battery performance, at the moment, is barely above average. The BIOS is not OS specific until one gets into OEM Windows 8, which requires UEFI/GPT from OEM's, and bootloader protection in the hardware. I'm of the "if it ain't broke, don't fix it" category as well. The F.35 BIOS listed on HP's website for your laptop is dated 2010-04-09 which is considerably newer than the one you have now (F.33 04/29/2008). The risk level should be quite low (if there had be problems HP would hardly have left it there for four years).I don't think I would go for just battery improvement if mine was already "barely above average". As someone else posted your laptop's BIOS is not OS-specific.There's only an file in the bundled archive provided on site (plus a Win32 utility).
Can anyone recommend a DOS-compatible flashing utility and, most importantly, will it work with ANY type of BIOS?Get the BIOS image from HP’s website (I use F15 version). Select a directory to store the files and you can close the program. The laptop will keep short beeping for about one minute, it will power off itself after recovering the BIOS.