What Problems Are Users Likely to Encounter When Opening a Binance Account While Preparing to Change Their Phone Number?
Users who are about to change their phone number and open aBinanceaccount often find that the most challenging part is not the registration itself, but rather being unable to log in or manage assets after the number change because the old number cannot receive verification codes. The core strategy to solve this issue is to establish multi-factor authentication using an email and an authenticator app during registration, making the phone number an "optional" rather than "sole entry" method.
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1. Why Problems Arise When Changing Numbers
Binance account security verification typically relies on multiple verification channels, with the phone number being a crucial one. If the old number is deactivated after a change, you may be stuck during login, withdrawals, or security setting modifications due to the inability to receive SMS codes.
The root cause: registering only with a phone number without also binding an email or Google Authenticator, resulting in a single verification channel.
2. The Correct Registration Strategy
Step 1: Register with an Email, Not a Phone Number
Choose "Email Registration" during sign-up (Gmail or Outlook is more stable). The email serves as the "root identity" of your account—when you change your phone number, the email remains unaffected, and the channel for login and verification code reception stays available.
If you must register with a phone number, ensure you complete the following two steps before changing numbers.
Step 2: Immediately Bind Two-Factor Authentication (2FA)
In the [Security Settings], bind Google Authenticator or the Binance Authenticator. Afterward, sensitive operations like login and withdrawals can bypass SMS verification by using the dynamic codes generated by the authenticator app.
During the binding process, the system will generate a backup key—be sure to screenshot or write it down and store it in a safe place, as it will be needed for recovery when you switch phones.
Step 3: Complete Identity Verification (KYC)
Complete real-name verification on the [Identity Verification] page. If you need to contact customer support after changing your number, accounts that have completed KYC will be processed faster.
After completing these three steps, the phone number becomes a "backup verification channel" rather than the "sole entry point". Even if your old number is deactivated, you can still operate your account normally using your email and authenticator.
3. If You Already Registered with a Phone Number, Do This Before Changing It
If you have already registered an account with an old phone number and can still receive SMS on it,follow these steps to unbind and rebind before deactivating the number:
Steps to Unbind/Rebind on the App:
Open the Binance App → Tap [Profile] at the bottom right → [Security Center]
Tap [Phone Number] → Tap the edit icon
Enter the SMS verification code sent to your current phone number
Enter the new phone number, receive and fill in the verification code
Complete facial recognition or fingerprint verification, then submit to activate
Path to Unbind/Rebind on the Web:
Log in to the official website, hover over the avatar in the top right → [Security Settings]
In the left menu, select [Phone Number] → [Edit]
Enter the SMS verification code from your current phone number + the Google Authenticator dynamic code
Enter the new phone number and complete verification, then submit to activate
After rebinding, functions like withdrawals and C2C trading may be disabled for up to 24-48 hours, as a security measure by the platform.
The world's largest cryptocurrency exchange by trading volume,leading in security and liquidity.
New user benefit: Enjoy 20% off trading fees upon registration!
4. If the Old Number Is Deactivated and You Can't Receive Verification Codes
Try the following three methods in order:
Method 1: Email Verification (Fastest)
After logging in, go to [Security Settings] and click [Change Phone Number], then select [Verify via Email]. The system will send a verification link to your registered email; clicking it allows you to directly bind a new number without requiring the old phone number's verification.
Method 2: Customer Support Ticket (Primary Channel)
Go to [Help Center] → [Contact Support], select "Account Issues" → "Unable to Access Phone Number"
Upload clear identity verification documents (front and back of your ID card or passport)
Complete a video verification as instructed by support (read a random string of numbers aloud)
After the support team approves, follow the email guidance to bind a new phone number
Method 3: Submit a Manual Review Request
This applies when your asset level meets the threshold but your email is also inaccessible. In the help center, search for "phone number deactivated, unable to verify," submit a request, upload your ID photo, and a recent bank statement screenshot showing your name and date. Wait for review.
Can the old number still be used to log in after unbinding?
No. Once the rebinding is successful, the old phone number loses its permissions for login and receiving verification codes. All operations must be done using the new phone number or email.
