**To enhance the security of users' accounts, KuCoin uses a security authentication method: Google 2-step verification. Please only unbind Google 2FA for the following reasons. Please note that your account will be in a state of extreme danger after Google 2-step verification is unbound. It is strongly advised to rebind your account to Google 2-step verification as soon as possible. **
1. Lost Google two-step verification code and can't login to KuCoin account, the two methods could help you.
（1）Reset Google two-step verification code with Google Secret Key.
If you save your Google Secret Key and cannot log in to your account, please re-bind Google 2-Step Verification with the key in your mobile application "Google Authenticator". After rebinding, you can directly enter the 6-digit verification code to log in your KuCoin account.
***For old device***
<1> Please delete the original KuCoin account on your mobile Google Authenticator Application, and re-bind it with the Google Secret Key.
<2> Or uninstall Google Authenticator Application, then re-install it, rebind your KuCoin account to it with the Google Secret Key.
***For new device***
Please download Google Authenticator Application, then bind your KuCoin account to it with the Google Secret Key.
- Delete the original KuCoin account on Google Authenticator Application.
- Rebind Google 2FA with the secret key
- Enter the 6-digit verification code to input box, you can login KuCoin safely.
(2) Reset Google 2FA with security questions.
Access www.kucoin.com, enter your username and password. You will enter Security Verification page. Just click "Lost Google 2-step Verification Code".
Confirm two prompts, and click on "Confirm Reset" button
Click "Unbind Self Service"
Answer the security questions, then click on "Submit"
We'll send an email to your KuCoin email address
Confirm this operation
You need to login again and submit your identity information
Just wait 1-2 days, we'll notify you results by email
2. Login to KuCoin account to Unbind Google 2FA when you're about to change phone or device.
If you want to change your phone or device, you need to unbind the Google 2-step verification on your old device. Then you need to bind the new device to your account. This can easily be done by yourself, if you have your old device. First, log in to your KuCoin account. Then, click on the Account tab. Next, click on the Overview-Unbind tab. Finally, click on the Unbind Google 2-Step Verification button. The screen will look like the one below.
Now, you will see the screen below. Click on Unbind Google 2-step verification button.
Next, enter your KuCoin password and the 6-digit code from Google Authenticator on your old device.
Of course you can unbind Google 2-step by security questions, the above paragraph has described of unbinding Google 2-step by security questions.
**Please note that your account will be in a state of extreme danger after Google 2-step verification is unbound. It is strongly advised to rebind your account to Google 2-step verification as soon as possible.**
To bind your new device refer to : How to Bind Google 2FA to Kucoin