Transferring a smartphone to a new owner requires not only the physical cleanliness of the case, but also, more importantly, the complete deletion of your personal information. Many users mistakenly believe that a simple logout or a standard reset is enough to guarantee security, but there are nuances in the Xiaomi ecosystem, ignoring which can lead to the lock of the device by the new owner or leak confidential data.
In this article, we will discuss in detail all the stages of preparing a gadget for sale, paying special attention to the correct course of action, you will learn how to avoid blocking Mi Account, whether to format internal memory and which hidden parts of the system require your attention before the final restart.
Preparing your device for resale is a sign of respect for the customer and care about your own digital hygiene.We will look at both standard cleaning methods through the settings menu and additional security measures that ensure that your photos, passwords and banking data do not fall into the wrong hands.
Preparation of accounts and untiing of services
The most critical stage is to work with accounts, because they are the ones that most often cause problems after sale. MIUI and HyperOS have powerful anti-theft protection that automatically locks the device when it is turned on, unless it is untied from the owner's old account. This is a Find Device feature that needs to be deactivated.
First, make sure you remember the password from your Mi Account and your Google account. You need to manually log out of all services. Go to settings and find the account section. It's not just about deleting your account, it's about making sure that the device search feature is off.
⚠️ Note: If you simply reset your settings without first logging out of the Mi Account, the smartphone will turn into a “brick” for the new owner. When activated, it will require you to enter a password from your account, which the buyer will not be able to prove ownership of.
Check out third-party cloud services like Yandex.Disk or Google Photos, which may have active sessions in the background. Although a system reset typically removes authorization tokens, manually checking in the Passwords and Security section → Device Manager will let you see all active sessions and force them to terminate.
- 🔑 Enter the Mi Account password to confirm device detachment.
- 🔑 Make sure the Find Device switch is grey (inactive).
- 🔑 Check the list of trusted devices in Google’s security settings.
Once you successfully log out, your system will stop syncing data, which is an important signal that your connection to the cloud is broken, and local deletion of files will no longer affect your backups on the Internet.
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Before untiing your account, make sure all important contacts and notes are synced to the cloud so that they don’t lose them during the cleanup process.
Backup of important data
Xiaomi’s built-in tools offer a handy tool for creating a local backup that is stored in internal memory, but for complete security, it is better to transfer it immediately to a computer or external drive.
Use the standard Security app or go to Settings → About Phone → Backup and Restore. Here you can choose what to save: system settings, calls, SMS and, of course, user data. The process can take a considerable time depending on the amount of information.
| Type of data | Recommended backup method | Importance |
|---|---|---|
| Contacts and calendar | Sync with Google/Mi Cloud | Critically. |
| Photos and videos | Google Photos / Copying on PC | Tall. |
| Messenger chats | Built-in WhatsApp/Telegram backup | Tall. |
| Wi-Fi passwords | Synchronization of Mi Cloud | Medium |
Don't forget about messenger files. WhatsApp and Telegram store media files in separate folders that sometimes don't fall into the system's shared backup. It's best to export chat history through the application's settings, saving the archive to cloud storage.
The local copy created by MIUI is encrypted by default. If you plan to transfer it to a new Xiaomi phone, remember the password you set when you create the backup. Without this password, it will be impossible to restore data on the new device.
Encrypting data before resetting
Modern Xiaomi smartphones run on Android, where data is encrypted by default, but to ensure that remote information cannot be recovered even with special software, it is recommended to force the device to be encrypted before reset, if such an option is available, or to make sure that encryption is active.
On new models with Android 10 and above, encryption is enabled constantly and tied to the Internet. PIN-This means that a simple Factory Reset actually destroys the encryption keys, making old data unreadable as digital trash».
However, for maximum paranoia and security, you can use the full formatting feature: In the recovery menu or in the advanced reset settings, sometimes the option “Erase all files” or “Erase data and format” is found, which takes longer, as the memory sectors are physically overwritten.
⚠️ Attention: The full formatting process can take anywhere from 30 minutes to several hours.Make sure the battery is at least 50%, or better connect the smartphone to the charger during this procedure.
If you use a microSD card, you need to remove it before you start any reset operations. The phone's built-in memory and memory card are different logic devices, and resetting the phone won't affect the files on the flash drive, but retrieving it will protect you from random formatting if you choose the option to clean the entire drive.
- 🔒 Make sure that the lock screen is complex PIN-code.
- 🔒 Check the encryption status in the About Phone section» → «All specs».
- 🔒 Extract. SIM-Memory card before cleaning.
Performing a complete reset of settings
It's time for the main action. There are two main ways to do a reset: through the settings menu (soft reset) and through the Recovery menu (hard reset). The first method is recommended for sale, as it handles the untiing of accounts correctly if you have followed the previous steps.
Go to Settings → About Phone → Reset. A warning will appear on the screen that all data will be deleted. The system will again ask you to enter a pattern lock or password from the lock screen to confirm the operation.
☑️ Checklist before pressing the "Reset" button»
Once confirmed, the deletion process will begin. The smartphone will restart, and you will see the Xiaomi logo with a progress indicator, at which point the device can restart several times - this is normal behavior by the operating system.
It's important not to interrupt the process or try to turn off the phone. If the reset is successful, the device will start in the initial setting mode, welcoming you to the choice of language, which means that the data is deleted and the phone is ready to be transferred to the new owner.
What to do if your phone goes into a cyclical reboot?
Alternative method through Recovery Mode
If you can't access the settings menu (forgot the unlock password, but Mi Account is unbound, or the system is working with errors), you can use Recovery mode, which is deeper and ignores some software locks in the interface.
To enter Recovery mode, you need to turn off your smartphone and press the button combination. On most Xiaomi models, this is Volume Up + Power. Hold the buttons until the logo appears, then let go.
In the Recovery menu, you can navigate with volume buttons and you can choose with power buttons. You have to select Wipe Data, then Wipe All Data, and you confirm the action. This method is guaranteed to delete the user data partition, but requires that the Find Device function be disabled beforehand, otherwise the phone will request an account after cleaning.
- 🛠 Keep the power button pressed until vibrations appear.
- 🛠 Use volume buttons to move through the menu.
- 🛠 Be careful: in this mode there is no possibility to create a backup.
Using Recovery is especially important if you are selling your phone as a “software defective” or if the touch screen is not working properly and does not allow you to go through the standard reset procedure.
Testing of results and physical training
Once the smartphone has rebooted and you see the welcome screen, don't rush to give it to the customer. Go through the initial stages of setting up to the desktop to make sure there are no errors and locks. Check if the phone suddenly requested the account of the previous owner.
It's worth checking out. IMEI-code by dialing *#06# in emergency call mode (if menu allows) or looking at the sticker at the back of the box to make sure it matches what is listed in the documents and on the box.
Physical cleaning is the last touch. Wipe the screen with microfiber, clean the speaker and the charging connector from dust. Pack the phone, charger and cable. If you have the original box and documents (check, warranty card), be sure to attach them - this greatly increases the liquidity of the device.
⚠️ Warning: Do not pass on your personal accessories, such as cracked safety glass or unoriginal chargers, to the buyer, passing them off as complete unless you have discussed this in advance.
Now your Xiaomi is fully ready to sell. It's clean, secure and has no trace of your use. The new owner will be able to activate it as a new device by logging in to their account.
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The main key to a successful sale is a fully untied Mi Account, without which the smartphone is useless for any other person.