Note: This method requires the exact model and serial number of your laptop to generate a valid file. Generic files will not work.
Almost certainly not. We’ve tested 72 hours. The chip is non-volatile. Only a flash or HP’s SMC.bin file can clear it.
If hardware repair scares you, HP has an official process.
How to contact: Call HP Business Support (not Home support). Tell them you need an "SMC SLP" password reset. Do not lie; say you bought it used and the previous owner didn't remove the password. hp probook 450 g2 bios password reset
Attach the SOP8 clip to the BIOS chip:
On the ProBook 450 G2 motherboard, look for an 8-pin chip labeled:
It’s usually near the Southbridge or under a small sticker. Note: This method requires the exact model and
The BIOS settings, including the password, are stored in a memory chip (CMOS) kept alive by a battery. On older laptops, removing the main battery was enough. On the ProBook 450 G2, you need to access the coin-cell battery inside the chassis.
Tools Required: A small Phillips-head screwdriver and a plastic pry tool (or guitar pick).
The HP ProBook 450 G2 uses an AMI (American Megatrends Inc.) UEFI BIOS with password storage in a serial EEPROM (usually a Winbond 25Q series chip) on the motherboard. The password is not cleared by removing the CMOS battery because it’s stored in non-volatile memory. How to contact: Call HP Business Support (not Home support)
HP implements two types of passwords:
The 450 G2 is known for being very resistant to simple resets due to HP’s “HP Endpoint Security Controller” (embedded controller, EC).
That code is for HP support only. If you are out of warranty, ignore it. It will lock you out for longer periods (up to 6 hours). Wait it out, then use the hardware method.