Won't Open to known password - Computers & Internet

It has a Magic Hole on the inside. Seems to be a known issue on them.

https://www.youtube.com/watch?v=Xy2LuGS2ytw

https://www.google.com/search?q=Blazer+%2799+Backdoor+won%27t+open

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After you type in your last-known password, it should lead you to verification page and ask to send a code message to your cellphone, the one you saved previously. Then you should receive a text message with code. Just enter that code and google will double check your second email address, such as YAHOO, and send a password changing email to that email address. Now open the email and click the link it provide, and it will lead you to the password reset page.

Use the forgotten password option, also, passwords are case sensitive, be sure you don't have caps lock on

Open the BIOS and clear the password in setup.

check the password if you are entering a wrong password Facebook won't open your profile

You can re open password protected excel sheet by using Stellar Phoenix excel password recovery software (or any other software known to you).

You might have forget your password
you can reset your password by using these three options
1. reset your password using alternate email id
2. reset your password using security questions
3. reset your password using your phone number

Which password? Are you trying to connect to the wireless network. Make sure that you have the correct network password. Open the setup page of the wireless router and check the wireless network key WEP WPA.
If you are trying to open the setup page of the router then try default password admin.

Phones use two codes.
The sim's code, known as the password, which is 4 digit in number, and whose default is set by your network.
It also uses a lock code, which is attached to the phone. It is also known as security code. It's default is usually set by the phone's company.
If your problem is that of sim password, call your mobile service operators.
If it is a phone lock problem, send your IMEI number as a comment to this post for me to help you with a code.

Since Yahoo is a free e-mail, there's no way to reset the password. The only thing that you could use is the "I can't access my account" link. Then follow the steps. The system might provide or remind you of your password.

Good luck and have a great day ahead!