Changing a mobile number is always stressful for a smartphone user, as there is a risk of losing access to important accounts and instant messengers. This issue is especially acute for Viber, which is tied to a specific phone number and stores enormous amounts of personal information. However, the developers have provided a built-in migration mechanism that allows you to transfer correspondence history media files to a new number without having to create an account from scratch.
The procedure for changing a number in the ecosystem Android has become much simpler in recent years, but still requires care during the preparation stage. Wrong actions can lead to old chats remaining in “digital oblivion” and new contacts not seeing your profile. In this guide, we will look in detail at how to properly use the Change Number feature so that your conversations, groups and settings are fully transferred to the new SIM card.
The key success factor is having access to both phone numbers at the time of the operation. You will need not only a new SIM card, which is already activated and capable of receiving SMS messages, but also an old one, which will receive a confirmation code to authorize the current account. Ignoring this requirement is the most common cause of failure when trying to change profile data.
Device preparation and data backup
Before you start changing accounts, you need to make sure the integrity of the current messenger database. Although the number change feature works at the server level, local backup serves as your insurance against unexpected network failures or synchronization errors. It is recommended to create a fresh copy of chats through the settings of the application itself or using cloud storage Google Drive.
Make sure that the latest application update is installed on your device Android The latest application update has been installed Viber. Developers regularly optimize data transfer algorithms, and older versions of the software may have bugs that block correct profile migration. Also check the availability of free space in the internal memory, as the verification and synchronization process may require a temporary buffer to process files.
It is important to understand the difference between a simple reinstallation and a number change procedure. If you simply uninstall the app and reinstall it with a new number, you'll get a "clean" account. The function Change Number (Change number) works differently: it informs the messenger servers about the change of identifier, while maintaining all group associations and message history.
⚠️ Attention: Make sure that the new SIM card is inserted into the phone and has a stable network signal. Without the ability to receive an SMS or call with a confirmation code, the procedure will be interrupted at the verification stage.
☑️ Preparing to change the number
Step-by-step guide for changing the number in the application settings
The main algorithm of actions is performed directly inside the interface messenger. Menu navigation may differ slightly depending on the shell version Android and application localization, but the logic remains the same. You need to open the main menu, go to the settings section and find the item responsible for managing your account.
After entering the settings section, select the option Account (Account). Your current phone number and profile name are displayed here. A Change numberbutton will be available at the bottom of the screen or in the context menu (three dots). Click on it to launch the data migration wizard.
The system will prompt you to enter a new phone number in international format. It is extremely important to enter the country code correctly, otherwise the confirmation code may go in the wrong place or the system may not recognize the number. After entering the data, click the continue button, and the application will ask for confirmation that you have access to both numbers.
- 📱 Enter the old number to receive an activation code for the current session.
- 🆕 Enter the new number to which the account and history will be transferred.
- 🔐 Confirm the action via the SMS code sent to old device.
- 🔄 Wait for the profile to be automatically updated on the messenger servers.
The verification process may take several minutes. During this time, do not close the application or switch between other heavy apps so as not to interrupt the background process of data exchange with the server. The successful completion of the operation will be confirmed by a message that your contacts have been notified about the change of number.
The role of backup in the migration process
Although the built-in number change function is designed to save data, having an external backup is a critical security element. In the ecosystem Android backup can be carried out in two main ways: locally to the device memory or to cloud storage Google Drive. The method you choose depends on the size of your media files and the available space.
Local backup creates a database file in the phone's internal memory, usually in a hidden application folder. This method is reliable if you do not plan to reset your phone to factory settings. However, if you change the device or format the memory, such a backup will be lost, so for long-term storage it is preferable to use cloud services.
To set up automatic backup in Google Drive go to Settings → Account → Viber Backup. Here you can select the frequency of creating copies and the Google account to link. Make sure that there is enough free space on the cloud storage disk, since the history of correspondence with photos and videos can take up several gigabytes.
⚠️ Attention: The backup settings interface may change in future application updates. Always check that the paths in the settings menu are up to date before starting critical operations.
| Backup type | Where it is stored | Reliability | Requirements |
|---|---|---|---|
| Local | Phone memory | Medium | Access to file system |
| Google Drive | Cloud storage | High | Google account, Internet |
| Manual export | Email or messenger | Low (text only) | Mail client |
What happens to group chats and contacts
One of the main fears of users is loss of space in group chats. If you correctly perform the procedure for changing your number through the app settings, you will remain a member of all the groups you were previously a member of. For other chat participants, your number will be updated automatically, and they will see a notification about the change of contact, but the history of correspondence in the group will be saved for you completely.
Contacts for whom you are recorded in the phone book under the old number will also see the changes. Viber sends a system notification to your contacts that your number has changed. This saves you from having to manually inform every friend about changing the SIM card through other communication channels.
However, there is a nuance with contacts who did not save your number in the address book, but communicated with you in personal chats. If they haven't updated your contact manually, the conversation may end and you will be a new user to them. To avoid this, it is recommended to ask close friends in advance to update the entry in their phone books.
Technical details of updating in groups
When you change your number, the messenger server updates the binding of your unique ID (Viber ID) to the new phone number. Since identification in groups is by Viber ID, and not by number, your membership in the group is not interrupted. Only the displayed number for administrators and participants changes.
Possible errors and ways to solve them
In the process of changing the number, users may encounter various technical problems. The most common error is “Invalid verification code.” This may be due to delays in the mobile operator's network or the wrong time zone on the device. Check your date and time settings to "Auto" to sync them with the network.
Another common problem is an error when connecting to the server. This often happens when using unstable mobile data. Switch to a reliable network Wi-Fi before starting the procedure. If the application freezes during the loading phase, try clearing the application cache through the settings Androidwithout deleting user data.
If you have lost access to your old SIM card, the standard procedure for changing your number will become impossible, since you will not be able to receive a confirmation code to log into your old account. In this case, the only way out is to register a new account. Old chats cannot be restored, but you can write to support Viber with a request to unblock some functions if the old number was blocked by the operator.
- 📶 Check the balance and status of the SIM card before starting the operation.
- 🕒 Synchronize the device time with the network standard.
- 🛡️ Disable VPN and proxy servers during verification.
- 🔄 Reboot your smartphone if the application responds slowly.
⚠️ Attention: If you changed your telecom operator and switched to a tariff with limited Internet, make sure that you have a traffic package to download media files after changing the number, otherwise chats may not be displayed correctly.
If the verification code does not arrive within 2 minutes, do not request it again immediately. Wait 5-10 minutes so as not to block temporary access to sending SMS from the anti-spam server.
Differences in the procedure on different versions of Android
The process of changing a number in Viber is standardized and almost identical on all versions of the operating system Android, from old versions 8.0 Oreo to the latest Android 14 and 15. However, the visual design of the menu and paths to settings may differ depending on the proprietary shell of the smartphone manufacturer (Samsung One UI, Xiaomi MIUI, Pixel UI).
On devices with pure Android (Google Pixel, Motorola) the settings are usually in strictly a specific location described in the official documentation. On smartphones from Chinese manufacturers, the menu may be hidden behind additional tabs or have a modified hierarchy of items. If you cannot find the number change button, use the search in your phone settings by entering the query “Viber.”
It is important to note that some custom firmware may have aggressive power saving settings that “kill” background processes of the messenger. This may interrupt the data synchronization process when the number changes. It is recommended to temporarily disable battery optimization for the application Viber in the system settings before starting the procedure.
The success of the operation does not depend on the version of Android, but on the stability of the Internet connection and the availability of access to both phone numbers at the time of performing the actions.
Is it possible to change the number if the old phone is already lost?
Unfortunately, the standard number change function requires confirmation of access to the old account via SMS to the old SIM card. If the phone is lost and the SIM card has not been restored by the operator, it is impossible to change the number while preserving the history. You will have to register a new account.
Will my contacts see that I have changed my number?
Yes, Viber automatically sends a system notification to all contacts in your address book about the change of number. A service message will appear in personal chats indicating that the number has been changed.
Will my stickers and purchased sets be saved after the change?
Yes, all purchased stickers, themes and settings are tied to your unique account ID, and not to your phone number. After successful number migration, all content will remain available.
What to do if, after changing the number, some photos from chats disappeared?
This may be due to the fact that the media files were stored only in the application cache. Try asking your interlocutor to send important files. In the future, enable autosaving of media to the gallery in the Viber settings.
Is it possible to change the number on a tablet without a SIM card?
The number change function is intended for devices with active SIM cards. On a tablet, Viber works as an additional device linked to the main phone. The number is changed on the main smartphone, after which the tablet is synchronized automatically.