> ## Knowledge Base Index
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# How to Register or Log In to Mixin with a Phone Number?

Mixin Messenger supports two ways to register or log in to your account — **using a phone number** or **using a mnemonic phrase**.
This guide explains how to register or log in with your **phone number** step by step.

## **1. Registration or Login Entry**

1. Open the **Mixin Messenger** app.
2. On the home screen, tap **Create Account** or **Existing Account**.
3. Choose the **Phone** option.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/1/9/9/71991a4db339f000/en001_1ih7fym.jpeg)

## **2. Enter Your Phone Number**

1. In the country code selector, choose the correct country or region (e.g. +86, +852, etc.).
2. Enter your **phone number**.
3. Tap **Next** to confirm.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/1/9/9/71991a4db339f000/en002_1rwa6bd.jpeg)

## **3. Verify the Code**

1. Mixin will send a **4-digit SMS verification code** to your phone number.
2. Enter the **4-digit code** in the Mixin Messenger app.
3. Once verified, your registration or login will be completed successfully.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/1/9/9/71991a4db339f000/en003_ziq7qq.jpeg)

## **4. Initial Setup for New Accounts**

If this is your first time registering for Mixin Messenger, follow these steps:

* Set up your **profile photo and nickname**.
* Create a **PIN (wallet password)** to protect your assets.
* Once completed, you’ll be taken to the main Mixin Messenger interface.

## **5. Frequently Asked Questions (FAQ)**

**1. What should I do if I don’t receive the verification code?**
Please refer to this guide: *[What to do if you don’t receive the SMS verification code?]*

**2. What if I can’t tap “Next” after entering my phone number?**
Please make sure you’ve selected the correct country code and entered a complete phone number.

**3. I’ve changed my phone number — can I still log in to my old account?**
It depends on your situation:

* **If you are still logged in:**
You can change your phone number directly via **Profile → Personal Info → Phone Number**.
See: *[How to Change Your Bound Phone Number?]*
* **If you’re not logged in:**
If you can’t log in with your old number, you can recover your account using a **recovery contact** or **mnemonic phrase**.
See:
    [*How to Log In with a Recovery Contact?*](/en/article/how-to-log-in-using-a-recovery-contact-previously-emergency-contact-gqnvuz/)
    [*How to Log In to My Mixin Messenger Account Using a Mnemonic Phrase?*](/en/article/how-to-register-a-mixin-messenger-account-using-a-mnemonic-phrase-1anfhf7/)

**4. What should I do if I get a network error when logging in?**
Try switching your network connection — between Wi-Fi, mobile data, or VPN — and try again.

**5. Can I log in to the same account on multiple devices?**
No.
Accounts logged in via **phone number** or **mnemonic phrase** can only be active on **one mobile device at a time**.
When you log in on a new device, the previous session will automatically be logged out.
However, **mobile and desktop** versions can stay online simultaneously since the desktop app uses **QR code login** authorized by your phone.