Unlock bios password Dell Precision 3420,Precision 5820,Precision 7530,XPS 9575

Description

How to unlock bios and Hard-Drive password for Dell with service tag BF97
If you have a Dell notebook with ServiceTag (System number):
BF97
we remove password from BIOS or HDD.
How to remove the password? Here?s an instruction:
When you turn on your notebook, you should wait for the screen with a password.
Here you will find
system number
It?s a string of seven digits, then dash and at the end:
BF97
,
Send us your system number  that you want to unlock or upload photo with system number appears and we will send you the password
After entering your password, press the
left Ctrl
key and continue holding it, press
Enter key.
Your laptop is unlocked
We will always try to respond within 5-15 minutes or less during work hours
The Master Password works 100% guaranteed! If not, we will refund your payment!