How to fix if Telegram send code via SMS is not working

Telegram is a widely-used messaging app, but users often encounter issues with receiving verification codes via SMS during login or registration. This problem can be frustrating, especially when you’re locked out of your account. Whether it’s due to technical glitches, device settings, or regional restrictions, this guide will walk you through all the possible reasons and solutions to fix the issue.

Why Telegram SMS Codes Might Not Work

Understanding the root causes can help you troubleshoot effectively. Here are the most common reasons why Telegram fails to send SMS codes:

• Incorrect Phone Number: Errors in entering the phone number or country code can prevent code delivery.
• Network Issues: Poor signal strength or blocked SMS by carriers can interfere with code reception.
• Message Filtering Settings: Spam filters or blocked numbers on your phone may block Telegram’s verification messages.
• Telegram Server Glitches: Occasionally, Telegram experiences global outages or server issues.
• Regional Restrictions: In countries where Telegram is censored (e.g., China or Iran), SMS delivery may be blocked.
• Custom ROMs or Rooted Devices: Devices running custom ROMs or unlocked bootloaders may fail Telegram’s safety net checks, causing SMS delivery issues.
• Multiple Attempts: Requesting the code repeatedly in quick succession can trigger security protocols, temporarily blocking further attempts.

Telegram send code via SMS not working? Here are the solutions

Here’s a detailed list of solutions to resolve the problem:

1. Double-Check Your Phone Number

Ensure that you’ve entered your phone number correctly, including the country code. Avoid spaces or special characters during entry.

2. Restart Your Device

Restarting your phone can resolve temporary software glitches and refresh network connections. Turn off your device, wait for 10–15 seconds, and turn it back on before requesting the code again.

3. Check Network Connection

A stable network is crucial for receiving SMS codes:

• Switch between mobile data and Wi-Fi.
• Move to an area with better signal coverage.
• Ensure your SIM card is properly inserted and active.

4. Disable Message Filters

Filters for unknown senders or spam protection may block Telegram’s messages:

• On Android: Go to “Messages” > Settings > Spam Protection > Turn off.
• On iPhone: Navigate to “Settings” > Messages > Filter Unknown Senders > Disable.

5. Update or Reinstall Telegram

Outdated app versions can cause glitches:

• Uninstall Telegram from your device.
• Clear its cache (if possible).
• Reinstall the latest version from Google Play Store or App Store.

6. Use Another Device

If you’re logged into Telegram on another device (e.g., desktop), check there for the verification code in the Telegram service chat window. You can also try logging in using a different device altogether.

7. Try Telegram X

Telegram X is an alternative app officially developed by Telegram LLC that sometimes resolves SMS delivery issues. Download it from Google Play Store and attempt to log in using this app.

8. Connect to a VPN

If you’re in a region where Telegram is censored, use a VPN to bypass restrictions and receive the verification code:

• Choose a reliable VPN service.
• Set your location to a country where Telegram operates freely.

9. Address Custom ROM/Root Issues

If you’re using a device with a custom ROM or unlocked bootloader:

• Hide root access using Magisk.
• Pass Safety Net checks by flashing modules like kdrag0n’s SafetyNet Fix.
  This workaround ensures compatibility with Telegram’s security protocols.

10. Wait Before Requesting Another Code

Avoid requesting codes repeatedly within a short period as this may trigger temporary blocks due to security measures. Wait at least 24 hours before trying again.

11. Contact Your Carrier

If none of these steps work, contact your mobile carrier to ensure they’re not blocking SMS from Telegram’s short codes. Ask them to temporarily disable any filters that might interfere with SMS delivery.

12. Reach Out to Telegram Support

If all else fails:

• Tap “Didn’t get code?” on the login screen.
• Submit an email detailing your issue via support@telegram.org.
  Telegram’s support team may help identify the issue and provide additional solutions.

Bonus Tips

If you’re still unable to receive SMS codes:

1. Use the “Call Me” option if available—Telegram may send a voice call with the verification code instead of an SMS.
2. Check if the verification code has been sent via email (if you’ve linked an email address to your account).
3. Ensure Do Not Disturb mode is disabled on your phone as it might block incoming calls and messages8.

Conclusion

Not receiving a verification code via SMS can be frustrating, but these fixes should help you regain access to your account quickly. Whether it’s checking your network settings, addressing custom ROM issues, using alternative apps like Telegram X, or contacting support, there’s always a way forward.

Remember that patience is key—some issues might require waiting for server updates or carrier adjustments.

Have any of these methods worked for you? Share your experience in the comments below!

Also read:
1. How to Access Banned Telegram Channels (Easily)
2. How to Download Telegram Videos Easily (3 Methods)