> For the complete documentation index, see [llms.txt](https://yubit.gitbook.io/yubit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yubit.gitbook.io/yubit/guide/account-settings/what-should-i-do-if-i-cant-receive-sms-verification-codes.md).

# What Should I Do If I Can’t Receive SMS Verification Codes?

If you cannot receive SMS verification codes when logging in, withdrawing, or performing security actions, please follow the steps below to troubleshoot and resolve the issue.

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### **Common Causes & Solutions**

1. #### **Weak Mobile Signal or Unstable Network**

Please make sure that:

* Your phone has a stable signal
* Your internet connection is working (4G/5G/WiFi)
* You try switching networks and request the code again

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2. #### **SMS Blocking or Blacklist Settings Enabled**

Check whether:

* You have installed any SMS-filtering or security apps
* YUBIT's SMS sender number is accidentally added to a blacklist
* Your phone’s built-in spam filter is blocking messages

➡️ Disable SMS filtering or add YUBIT’s sender number to your trusted contacts.

***

3. #### **SMS Delivery Delays**

During peak periods (such as extreme market volatility), SMS delivery may be delayed.Recommended:

* Wait **1–3 minutes**
* Tap **Resend Code** and try again

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4. #### **Carrier Restrictions on International SMS**

If you are **outside Mainland China** or using a **virtual operator (VoIP)**, your carrier may block the verification SMS.Recommended:

* Use a local, stable telecom operator
* Try switching to another mobile number

***

5. #### **Using a Virtual Number (e.g., Google Voice)**

Many virtual numbers **cannot** receive verification codes from exchanges.If you registered with a virtual number, please update your account to a real mobile carrier number.

***

### **Still Not Receiving the Code? Contact Support**

If the issue persists after multiple attempts, contact **YUBIT Customer Support** through the in-app help center and provide:

* Your registered mobile number (including country code)
* Your current country/region
* The time you last attempted to receive the code
* Any error messages or screenshots (if available)

Our team will help you resolve the issue as quickly as possible.