What to Do If You Can't Receive OKX SMS Verification Code?

OKX SMS verification code not received? Troubleshoot in order: first check phone signal and SMS blocking, then clear SMS storage, and finally try voice verification. Verification codes are valid for 10 minutes. After 6 incorrect entries the account will be locked. If none of the above works, use official customer service channels.

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1. Check Basic Phone Status

Goal: Eliminate SMS reception failures caused by local phone issues.

Steps:

1. Restart your phone: Long periods without restarting may affect signal reception. Retry after a restart.
2. Check dual SIM settings: If using a dual SIM phone, swap the SIM cards between slots.
3. Check signal status: Ensure the status bar shows "4G", "5G" or "LTE". Make a call to confirm voice calls work normally.
4. Check for overdue bills: You cannot receive any SMS if your phone is suspended.

Done when: Phone signal is normal and a restart has been completed.

2. Check SMS Blocking and Storage Space

Goal: Check whether your phone system or security apps are blocking verification SMS.

Steps:

1. Check spam/blocked list: Open your SMS app, go to "Spam", "Blocked messages" or "Block list", and look for messages from sender 10690688 (OKX official service number).
2. Disable blocking switches: Temporarily turn off "SMS blocking" in phone manager apps, 360 Security or similar, or whitelist the OKX number.
3. Clean up SMS storage: Delete old unwanted messages to free up space so new messages can be received.

Done when: No verification SMS in the block list and sufficient storage space is available.

3. Use Voice Verification as an Alternative

Goal: Switch to voice verification when the SMS channel is consistently failing.

Steps:

• On the OKX verification page, tap "Didn't receive a code? Try voice verification" or "Call me instead".
• Wait for the system to call you automatically, answer the call, listen carefully to the 6-digit code announced, and enter it.
• In some regions, you can also receive codes via WhatsApp or Telegram. Use the verification method displayed on the page.

Done when: You have successfully completed verification using voice or another alternative channel.

4. Clear Cache or Switch Platforms

Goal: Clear the app or browser cache, or try a different device.

Steps:

• App: Clear the OKX app cache (Android: Settings → App management → OKX → Clear cache; iOS: Log out and log back in).
• Web: Clear browser cache and cookies, then refresh the page.
• Try obtaining the code on a different platform: desktop browser, desktop app, mobile browser, or mobile app.

Done when: Cache has been cleared and the code is received after a retry.

OKX Exchange
A leading global cryptocurrency platform,suitable for both beginners and experienced traders.
New user benefit: 20% off trading fees upon registration!！

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5. Contact Customer Service (If the Previous 4 Steps Don't Work)

Goal: Submit your issue through official OKX customer service channels.

Steps:

• In the app: Top-left menu on the home screen → Help Center → Live Chat, transfer to a human agent.
• Email: Send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. explaining the situation and attach relevant screenshots.

Done when: A ticket has been submitted and accepted by customer service.

Prerequisite: Confirm the phone number is bound to your OKX account and is correct.

Common reasons for failure:

• Number portability: Users who have ported their number may experience issues; contact support and explain.
• Sending frequency limit: If the page shows "SMS sending failed", wait about 2 hours before trying again.
• SMSC configuration error: A small number of Android phones have an incorrect SMS service center number. Call your carrier (China Mobile 10086 / China Unicom 10010 / China Telecom 10000) to get the correct SMSC number and set it manually.

Risk reminders:

• After changing or unbinding your phone number, you cannot withdraw or use C2C selling for 24 hours.
• If the verification code is entered incorrectly 6 times, your account will be temporarily locked.

Verification of resolution: Successfully receiving the code and completing verification, with the page advancing to the next step, indicates the problem is solved. If voice verification was used, confirm you heard the code clearly and entered it correctly. After contacting customer service, keep your ticket number to track progress.