We reset/unlock bios administrator password & Hard-Drive password for Acer Aspire V5-471 Click the link below to buy the code for unlocking your laptop Acer Aspire V5-471 https://bios-fix.com//index.php?resources/how-to-unlock-dell-with-hint-key-bios-password.93/ Power on your laptop Enter the wrong password three times You will see a screen only with Key Hint number or system dissabled We need only key Hint number or system dissabled to unlock it for example in the photo below the key Hint number is: A426A639 5526CD3C or Add my skype: [email protected] Telegram: https://t.me/bios_unlock WhatsApp: +16176147065 Join WhatsApp: https://wa.me/16176147065 Join my skype: https://join.skype.com/invite/oxd56EXtReTk Join telegram channel : https://t.me/unlock_bios After payment processing, your master password will be sent immediately (to your email and PayPal email address) In Laptop: enter a calculated password, then push Enter key. We send to you the password and you must type it on password prompt and then the laptop gets unlock