How can I fix security pin. device asks for pin which I forget

If you have security questions set during under your Google account security, then you will be able to unlock your device by answering these questions.

Step 1: After multiple wrong attempts, you will get “Forgot Pattern” or “Forgot PIN/Password” option.

Step 2: Tap on it, and then select “Answer Questions” option.

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Step 3: You will be presented with your Google security questions which you have added in your account. Answer them accordingly.

Step 4: If you answer the security questions correctly, you Samsung Galaxy Tab A7 will unlock.

Step 5: After successful unlock, you will be asked to create new PIN, Password or Pattern Lock for your Samsung Galaxy Tab A7.

To unlock Samsung Galaxy Tab A7 using your Gmail account, follow below-mentioned steps:

Step 1: After multiple wrong attempts, you will get “Forgot Pattern” or “Forgot PIN/Password” option.

Step 2: Login with your Google (Gmail) account by entering its details such as username/password.

Step 3: Once you are logged in successfully, your smartphone will be unlocked.