Many users have encountered situations where they can't receive SMS verification codes when logging in or operating the Binance APP — especially during critical moments when security verification is needed, not getting a code can be really frustrating. This problem is actually quite common, and there are several possible causes. But before troubleshooting, please first confirm you're using the genuine official Binance APP downloaded from the Binance official website. For iPhone installation, refer to the iOS installation guide. After confirming your APP is genuine, let's troubleshoot the reasons for not receiving verification codes one by one.

Why You Might Not Receive SMS Verification Codes

There are many reasons for not receiving SMS verification codes. Here's an analysis from most to least likely:

Reason 1: Blocked by Phone's Spam Filter

Modern Android phones come with built-in spam blocking features, and many international SMS messages get automatically classified as spam or blocked outright. You can check your phone's SMS blocking records — the verification code might be there.

How to check by phone brand:

  • Huawei: Open SMS app → Blocked Messages
  • Xiaomi: Security Center → Spam Blocker → SMS
  • OPPO: Messages → Blocked Messages
  • vivo: iManager → Spam Blocker → SMS Blocking

Reason 2: Incorrect Phone Number Format

Phone numbers in Binance's system need to include the international country code. If your phone number doesn't have the correct country code (such as +1 for US, +44 for UK), the SMS sent by the system may not reach you. Check your bound phone number format in account settings.

Reason 3: Carrier Issues

Some carriers may block SMS from overseas numbers. Binance's SMS verification codes are sent from overseas servers, and some carriers filter these messages as spam.

Reason 4: SMS Channel Congestion

During peak platform usage, such as during dramatic market movements, when a large number of users request verification codes simultaneously, SMS channels can become congested. In this case, wait a few minutes and request again.

Reason 5: Poor Phone Signal

If you're in a basement, elevator, mountainous area, or other location with weak signal, SMS messages may be delayed or lost. Move to an area with better signal and retry.

Solutions

Solution 1: Check Blocking Records

This should be the first thing you do. Check your phone's spam blocking records for any incorrectly blocked verification code messages. If found, add the verification code sender number to your whitelist so it won't be blocked in the future.

Solution 2: Disable Blocking and Retry

Temporarily disable your phone's SMS blocking feature, then tap "Send Verification Code" again in the Binance APP. After receiving the code, you can re-enable the blocking feature.

Solution 3: Switch Verification Methods

If SMS verification codes simply won't come through, consider switching to other verification methods. Binance supports multiple verification options:

Email verification: Bind an email address in Security Settings, then choose to receive verification codes via email during verification. Email verification codes typically have a higher delivery rate than SMS.

Google Authenticator: After binding Google Authenticator, verification codes are generated locally by the app on your phone, completely independent of network delivery — so there's never an issue of not receiving them. Strongly recommended.

Solution 4: Contact Your Carrier

Call your mobile carrier's customer service and ask if there are any international SMS blocking settings. If so, request to have this blocking disabled.

Solution 5: Wait and Retry

Sometimes it's just a temporary delay. Wait a few minutes and tap the "Resend" button. Be careful not to tap the send button too frequently in a short period — first, it may trigger rate limiting that prevents sending for a period; second, previously sent messages may still be in transit.

Long-Term Solutions

The instability of SMS verification codes is a persistent issue. Rather than troubleshooting every time, it's better to address it fundamentally.

Bind Google Authenticator to Replace SMS

Google Authenticator is the most recommended alternative. Its advantage is that verification codes are generated entirely locally on your phone — no network or SMS channel needed — so there's never an issue of not receiving them.

How to bind: APP → Personal Center → Security Settings → Google Authenticator → Bind. Follow the prompts to scan the QR code or enter the secret key to complete binding.

Bind Email as Backup

Even if you've already bound Google Authenticator, it's recommended to also bind an email. This gives you multiple options during verification, so you won't get stuck if a single channel has issues.

Keep Your Phone Number Active

If you frequently change phone numbers, remember to promptly update the bound number in the Binance APP. After an old number is recycled by the carrier, it may be assigned to someone else, creating a security risk.

Handling Special Situations

Phone Number Has Been Deactivated

If your bound phone number has been deactivated, you can't receive verification codes or log into your account. In this case, you need to contact Binance online support and submit identity verification materials to request unbinding of the old phone number.

Can't Receive Codes After Going Abroad

If you're overseas, your domestic phone number may not receive SMS messages normally. Before traveling abroad, it's recommended to activate international roaming SMS service with your carrier, or switch to email verification or Google Authenticator in the Binance APP beforehand.

New Phone Number Not Yet Bound

If you've just switched to a new phone number and haven't updated it in Binance yet, verification codes will of course be sent to the old number. If the old number is still usable, complete verification with the old number first, then promptly update your phone number to the new one in Security Settings.