|I am working on my HP ProBook 4430s Base Model laptop. I replaced the cmos battery with a new one and after putting the laptop back together, I powered it on and it said "Cmos check-sum is invalid" (something else about restarting to configure) and asked me to hit enter to reboot. I hit enter. After it restart, I try to go into the bios and it takes me to system diagnostics. I even tried entering into other bios options (boot device option, system info, etc..) with the same results. The only thing I can go into, other than system diagnostics, is HP SpareKey Recovery (which I do not need). My hard drive is blank, so no os is installed.|
Things I have tried:
installed another new cmos battery
multiple diagnostics (hardware is working)
checked for over-heating (found none)
bios update with a cd and usb stick (won't load neither)
P.S. I can remove the cmos battery (tried all 3) and reinstall it only to get the same results all over again.