Today’s Xiaomi smartphones store a huge amount of personal information, and one of the key user identifiers is often a phone number, which is tied to a Mi Account, used for two-factor authentication, restoration of access and operation of cloud services. However, situations vary: you may have changed your SIM card, purchased a new device or just want to secure your data before selling the device, in such cases there is an urgent need to completely remove or untie the number from the system.
The process of data cleanup is not always trivial, as the MIUI and HyperOS ecosystems strive to keep the user connected for the sake of security. Simply removing a contact from a phone book is often not enough when it comes to system bindings. Deep cleaning requires several steps to be taken sequentially in different sections of the menu to avoid leaving “digital traces.”
In this article, we will discuss all aspects of working with a phone number in the shell of Xiaomi.We will look at the standard methods of deleting, working with cloud synchronizations and the actions necessary to fully prepare the gadget for resale. Understanding these processes will help you avoid locks and problems with access to your account in the future.
Removal of the number from the local phone book
The most obvious and first step is to clean up the built-in contact repository. The standard Contacts app in MIUI has a different storage structure, which may be different from the usual one. To delete the number, you need to open the corresponding application and find the desired entry in the list. Click on the subscriber name to open the card, and select the Delete option or the basket icon.
If you want to delete multiple records or clear the entire list, you can use mass editing mode, so you can press your finger on one of the records for a few seconds, and then you can checkboxes to select, and you can mark all the unnecessary numbers and do group deletion, which saves you a lot of time when you clean the database.
⚠️ Note: Deleting a contact from the phone book does not untie the number from the Mi Account or cloud sync if it was previously enabled.
It is important to consider where the number is saved: in memory SIM-If the record is on a SIM, it can automatically return after rebooting or synchronizing. To completely delete, select the Contact Management option in the application settings menu and make sure that both storage sources are cleared.
- 📱 Open the Contacts app on the home screen.
- 🔍 Find the number you need through a search or in a general list.
- 🗑️ Click on the entry and select “Delete” or use multiple choices.
- 💾 Check the display settings to make sure hidden contacts are also cleared.
Working with Mi Account and Cloud Synchronization
The centerpiece of Xiaomi’s ecosystem is the Mi Account, which is often the main custodian of your phone number, and it’s the number used to log in, recover your password, and confirm transactions. To change or delete a number from your profile, you need to go to your account settings. This can be done through the Settings menu. → Mi-account.
In the security section, you will find the phone number item. The system will require confirmation of your current identity, for example, through entering a password or a code from SMS. After successful authorization, you will be able to change the number or delete it if the functionality of a particular firmware version allows it, often instead of completely deleting it, you need to replace it with a new number to continue using the services.
📊 Where to store your number in Xiaomi?
In the memory of the phone
Nana SIM-map
In the Mi-account.
In Google Contacts
Cloud sync can create copies of remote local numbers. If you erase a contact from your phone but it's still in the cloud, when you turn on sync, it'll come back. Go to Settings → Mi Account → Sync → Contacts and check status. You can temporarily disable sync, clear the local base, and then disable the cloud-based contact store.
For advanced users, the i.mi.com cloud web interface is available. You can log into your account through your browser on your computer, go to the Contacts section and massively clean or delete specific records there, and this action will apply to all devices associated with this account, ensuring global data cleanup.
- ☁️ Go to the Mi Account settings through the main settings menu.
- 🔐 Get logged in to access security data.
- 🔄 Turn off contact sync before removal to avoid recovery.
- 🌐 Use the web version of the cloud to manage data from PC.
Shift. SIM-maps and network settings management
Physical replacement SIM-cards are not a guarantee that the old number will disappear from all system logs and settings. MIUI can cache data about the previous operator and number for service needs, such as determining the caller name or setting up a caller. MMS. To reset this data, go to Settings → SIM-maps and mobile networks.
You can see a list of installed cards here, and if you take out an old SIM, make sure that the settings don't leave its name and number profile, you can rename the current card, or clear the name field if the system allows you to leave it empty, and this will help you avoid confusion when the phone continues to display the old number in statuses or when sending messages.
Settings → SIM- Maps and Mobile Networks → Select SIM → Name SIM- Cards
In some cases, especially after resetting, the phone may request an unlock or activation code associated with the previous number if Find Device is enabled. This is a theft protection mechanism. If you change the number but do not untie the device from your old account, the system may block some features, requiring confirmation through the old phone number.
What if your phone requires a code from an old SIM card?
If your device requests a confirmation code from a number that is no longer available to you, try using the backup email specified in your Mi Account. You can also use the account recovery form on the official Xiaomi website, providing checks on the purchase of the device to confirm ownership rights.> Don’t forget to check your message settings (SMS/MMS). In the Messages app, the settings may include a feedback number or a message center prescribed by the operator, and when changing the SIM card, these values sometimes need to be updated manually or reset to factory network settings. Full reset (Hard Reset) as a cleaning method Radical, but the most effective way to remove the number and all associated data is a complete reset of the device to factory settings. This procedure, known as Hard Reset, puts the phone back out of the box, removing all user data, accounts, contacts, and settings. Make sure to back up important files before you start. You can reset through the settings menu. Go to Settings. → The phone. → Reset. The system will alert you that all data will be destroyed. Confirm the action by entering a graphical key or unlock password. The process will take a few minutes, after which the phone will restart in the initial setting mode. ☑️ Preparation for a full reset Make backup photos and documents Remember password from Mi-account Charge the battery to minimum 50%Extract SIM-pre-reset map Completed: 0 / 4 There is also a method of resetting through Recovery mode. To do this, you need to turn off the phone and pinch the combination of buttons (usually Volume up). + Nutrition). In the menu that appears, select Wipe Data and confirm the power button with the volume buttons, which is useful if access to the settings menu is blocked or the system is not working correctly. ⚠️ Warning: Once you reset your device, Mi Account (Find Device) protection may work. If you don't know the username and password from the account you used before, the phone may become a useless "brick." It's important to understand that the reset only removes the number locally and from the phone's memory. It doesn't delete the number from the Mi Account itself on the company's servers. To untie the number globally, you still need to log in to account management, as described in the previous sections, or delete the account completely. Deleting the number before selling the device Smartphone sales is a situation that requires maximum attention to deleted data. Simply erasing contacts is not enough: a customer should not be able to recover your call history or access your cloud data. The first step is to untie the device from your Mi Account. Go to your Mi Account settings and select the "Get Out" option. This action will break the link between a particular iron (IMEI You can then safely reset your settings, and if you don't, the new owner will come across an activation screen where you need your password, which will make the sale impossible or create problems for the pokoupat. Action Risk when ignoring Necessity to exit Mi-account Block activation (FRP) Critically Resetting Personal Data Leak Critically Extract SD-Cards File loss by buyer High Bluetooth Cleanup Saving of coupled devices Medium Also check connected devices in the ecosystem. If your number was tied to a Mi Band smartwatch or headphones via the Mi Wear or Xiaomi Wear app, remember to remove the device from the list in the app before selling the main smartphone. This will break the digital connection and clear the history of interactions. Solving activation and lock problems A common problem when changing the number or buying a used phone is blocking the activation. Xiaomi security system ties the device to the first user account. If you bought the phone from your hands, and the seller did not untidy it, or you changed the number and can not log in. If the number to which the account is tied, the operator is blocked through the SMS, the recovery path is not blocked. Alternative methods, such as recovery via linked email or answering security questions, if any, should be used, without access to this data, removing the number from security is virtually impossible. There are service centers and official procedures for unlocking purchase checks, which is the only legal way to unblock the number if it is lost forever. Using third-party account cutout software (Bypass) is risky and can lead to system instability or re-blocking after a firmware update. 💡Full untidying of the number before selling or changing the device protects your data and saves the new owner from activation problems. In conclusion, Xiaomi number management is a set of measures that affect not only the phone book, but also cloud services, security accounts and network settings. Regularly checking connected devices and the relevance of contact information in the Mi Account profile will help avoid unpleasant surprises in the future. Can you delete the number from the Mi Account without accessing the old SIM card? Direct deletion of the number without access to it is difficult for security reasons. However, you can try to change the number to a new one if the system allows you to pass identification through the biometrics. In the last case, you will need to contact the support of the phone, if you simply do not have an account with a Wi-card, you will not work with a document. However, the phone number will remain tied to your Mi Account in the cloud. If you sell the phone, the new owner will not be able to activate it without your password, because the Find Device protection will remain active. How to delete the number from your call history without deleting the contact? Open the Phone app, go to the Journal or History tab. Click and hold the desired call, then select Delete. To clear the entire story, click on three dots in the corner of the screen and select "Clear Call Logs." This will not delete the phone itself, go to the new phone number, but you will have to re-register from the phone number, but you will have to use the new one from the application, but you will have to use the phone from the phone from the address in the new one, but you will have to the phone number. The old account will remain tied to the old number.