SHORT ANSWER
To Deregister Firestick: Hit the Settings → Account & Profile Settings → Amazon Account → Deregister.
The following article will instruct you on deregistering your Amazon account from the Firestick or Fire TV.
Steps to Deregister Firestick
If you are selling your Firestick or just passing your Firestick to your friend for quite some time, then the first process you should do is deregister your Firestick. Every Firestick will ask you to register your Amazon Account to access all the available features. Your account will contain personal details, including payment and other sensitive details. So, deregistering is a must, but this will erase the information and apps that you have purchased along with other data. Meanhile, when you reregister your account, then you can back up all the data that were removed during the process.
- Select Settings
Turn on your Firestick and you will be navigated to the Home screen. From there, click Settings, a gear-shaped icon located at the last right corner of the page.
- Open Accounts & Profile Settings
Launch the Accounts and Profile Settings, it will be located as the third tile on the first row.
- Click Amazon Account
On the following page, you will be listed with some of the account options. Highlight the Amazon Account option from them and hit the OK button to launch it
- Tap Deregister
Tap on the Deregister button to remove the registered account from your Firestick. You can read the disclaimer on the right before proceeding with the action.
How to Deregister Firestick Without Remote?
You can deregister your Firestick without a remote by navigating through the Amazon website on your mobile phone. Sign in to your Amazon account and click the Devices option under Accounts & Lists. Now, click on the Deregister button near the respective device. Now, your account will be deregistered from the Firestick.
How Long Does It Take to Dereigter My Firestick?
Deregistering your Firestick will not take long. It will just take a few minutes to complete the process.