I am trying to sort out a Tosh Satellite P20 "laptop". The previous owner has set the bios password, and I don't know it. Anyone know the backdoor one? Phoenix bios. RTC battery is a rechargeable so could take forever to run down to reset it. You guys seem to know all the answers, so worth a try

Open the memory compartment (either underneath the machine, or hidden beneath the keyboard...)

Remove the memory module and the plastic sticker thing undneath it...

Somewhere on the exposed mainboard will be the cmos reset jumper...

It will either be two sepperate pads on the board very close together, or two pads seemingly woven together...just short across them for 10 seconds and bobs your uncle..fannys your aunt...


(Oh, i suggest doing the above with the main battery inplace)

if its got a floppy drive google a program call killcmos, used it extensively myself with good results

My Virus protection thinks it is a trojan horse? is that OK?

Might be OK if it detects it as a trojan, not entirely sure.
Have you tried,

"Phoenix Backdoor BIOS Passwords
Reported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX."

Taken from http://www.tech-faq.com/reset-bios-password.shtml