Having problems with your Sony VAIO GRX520 Notebook ?
I forgot BIOS password for SONY PCG-GRX520
\015 Hello,\015\012I have a question according "reset BIOS password"I changed my BIOS password and I can't load my notebook.\015\012Could you,please, help me. How I can reset this password? On the official site (for SONY VAIO) I not found information. For other models I observed, but for my notebook I not found. Thanks for your advice.\015
The best way for the Sony is to remove the cmos battery for at least 30 minutes. Remove the main laptop battery and leave it out. Make sure the power adapter is not attached. The cmos battery can be reached after removing the keyboard and is attached to the motherboard vis a small cable. If you have a "jumper" that come equipped on hard drives to jump the pins on the back, you can "short" the pin connections on the cmos battery socket, power the laptop up using the ac adapter and letting the computer go through the bootup process. When this happens power the laptop back down, take the jumper off and replace the cmos battery. Power back on with just the ac adapter and boot the computer. If the laptop still askes for a bios password just hit enter and it should allow you to log in. Once in go into the bios and reset the date and time. Once that is done power down and replace the main battery. Reboot the laptop and let Windows load.
Remove bios battery for about 20 minutes, and put back in and try again. It should clear the password.
Repair Help & Product Troubleshooting for Sony VAIO GRX520 Notebook
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