bios password reset...

i want to remove the bios password on an XPS 15 L502X? my sisterwanted me to remove bios password n wen i did so.. i couldnt finf remove option.. so wat i did was entered password n thn in new password left in blank in both ocassions.... but now d problem is its not accepting d old password nor its accepting blank password... pls give me d solution sir....

. when I press f2 for bios settings it asks to enter password/unlock key and below it says Unlock key hint number 98b1fdfb, don't know what that is. Any help is very much appreciated. I can give the service tag if needed. thanks...pls help me out sir pls...

The only thing I can think of would be to remove the CMOS Battery.

http://www.insidemylaptop.com/how-to-disassemble-dell-xps-15-l502x-laptop/.

Be sure to unplug, remove the battery and discharge the static by holding down the start button for 30 seconds prior to doing any internal work.

One more thing I forgot to add to my original reply;

Be careful how you handle the CMOS battery.  Only hold it by the thin edges.  Holding that style of battery by the flat sides can drain it.

Return the battery after about 10 minutes or so.

Removing the battery will do nothing - it's stored in EEPROM.  You must call Dell with verification of ownership in order to have the password removed.

ya i called up dell... they said ur warranty has finished.. so they r charging abt 1500 bucks for dis...

thanks dude.. but d problem is even after removing cmos battery.. bios password doesnt remove...

Nonsense.  The call costs $60 after the warranty expires.