Fire Stick Error SIGN_ERR_2 — What It Means & How to Fix It

What Does This Error Mean?

Fire Stick error SIGN_ERR_2 means the Fire Stick failed to sign into your Amazon account. This can prevent access to Prime Video, the Appstore, and other Amazon services. The most common cause is an incorrect or expired password, a two-factor authentication issue, or a network problem preventing the Fire Stick from reaching Amazon's login servers. Verifying your account credentials on Amazon's website usually clarifies the fix needed.

Affected Models

Fire TV Stick Lite
Fire TV Stick 4K
Fire TV Stick 4K Max
Fire TV Cube
Fire TV Stick (3rd Gen)

Common Causes

Your Amazon account password was changed recently and the Fire Stick still has the old credentials
Two-step verification is enabled on your Amazon account and the Fire Stick cannot complete the secondary authentication step
Amazon's sign-in servers are temporarily experiencing an outage
The network connection is too slow or unstable to complete the Amazon sign-in handshake
The Fire Stick's account token has expired and the device cannot automatically renew it

How to Fix It

Verify your Amazon password is correct. On a phone or computer, go to amazon.com and try logging in with the same email and password you are using on the Fire Stick. If you cannot log in on the website either, reset your Amazon password through the 'Forgot password' link.

Sign-in failures are most commonly just a wrong password — especially if you recently updated your Amazon password and did not update it on the Fire Stick.
Check your Amazon two-step verification settings. Go to amazon.com on a computer, then Account & Lists > Account > Login & security. Look for Two-Step Verification. If it is enabled, you may need to approve the sign-in from your phone or enter a one-time code. Make sure you have access to the verification method.

Two-step verification on Fire TV can be challenging since the device cannot receive SMS codes. Use an authenticator app or a trusted device approval to complete the verification.
Use the Amazon website to register the Fire Stick to your account directly. On amazon.com, go to Account & Lists > Account > Manage Your Content and Devices > Devices > Register a Fire TV Device. Enter the registration code shown on your Fire Stick (under Settings > My Account > Amazon Account) to link without entering a password on the TV.

This registration method is especially useful when entering complex passwords on the Fire Stick remote is difficult. The website registration links the device directly to your account.
Check your internet connection. Go to Settings > Network > Check Network. If the connection test fails or shows a weak signal, fix the network issue first — sign-in cannot complete without a stable connection to Amazon's servers.

A sign-in attempt that drops midway due to an unreliable connection can corrupt the authentication state and cause SIGN_ERR_2 on subsequent attempts. A solid connection is required.
Factory reset the Fire Stick and sign in fresh. Go to Settings > My Fire TV > Reset to Factory Defaults. After the reset, the device will prompt you to sign into your Amazon account during setup. Enter your credentials carefully. This clears all authentication errors stored on the device.

A factory reset is the most reliable fix for persistent sign-in errors. Your Amazon account, purchased content, and Prime subscription are not affected — they are stored in Amazon's cloud.

When to Call a Professional

If you cannot sign in after verifying credentials and resetting the device, contact Amazon Customer Service at amazon.com/contact-us. They can manually deregister and re-register the device on your account.

Frequently Asked Questions

I know my password is right but it still fails. What else could it be?

If you are certain the password is correct, check these other causes: two-step verification may be blocking the sign-in (check your email or authenticator app for a verification request), your account may be temporarily locked due to too many failed attempts (wait 30 minutes and try again), or Amazon's servers may be temporarily down (check downdetector.com for Amazon issues). Also try the website registration method described in Step 3 — it bypasses password entry entirely.

Will a factory reset delete my purchased movies and apps?

No — a factory reset only clears the data on the Fire Stick device itself. All your purchased and rented content on Amazon Prime Video is stored in your Amazon account, not on the device. Apps and their subscriptions are tied to your account too. After a factory reset and fresh sign-in, all your purchased content and Prime benefits are restored automatically. You will need to re-download apps and re-enter passwords for non-Amazon streaming services.

Can someone else use my Fire Stick without my Amazon password?

To set up a Fire Stick from scratch, your Amazon account credentials are required. However, if the device is already signed in and registered, anyone physically near it can use it freely — there is no screen lock by default. To protect your account on a shared device, go to Settings > Preferences > Privacy Settings to review what is accessible. You can also use Amazon Household to share access with family members without giving out your password.