The Kindle passcode is not the same password used for your Amazon account.

What Do I Do if I Forgot My Kindle’s Password?

Unfortunately, Amazon does not make it easy to reset your Kindle passcode.

Instead, you’ll need to reset your Kindle to gain access to it again.

Resetting your Kindle will remove all the books and other data stored on the gear.

However, that’s nothing to stress over.

In the passcode field, enter:111222777

Be patient.

After that, the tablet might prompt you to drop your Amazon account credentials and set a new password.

If you don’t get this prompt, you’ll need to reset the machine.

To pick a new password on a Kindle unit, you oughta have the existing one.

Go toSettings>unit Options>unit Passcode>Change Passcode, and enter the existing code.

Set and confirm the new passcode.

The exact tweaks may differ between devices.