Selling a used smartphone is a delicate process that requires not only finding a buyer, but also carefully preparing the device. If you own a device from Xiaomi, Redmi or POCO, simply cleaning the gallery will not be enough to protect your privacy. Modern Android systems, including the MIUI shell and HyperOS, store many traces of your activity that can be restored by unscrupulous buyers.
You need to understand that manually deleting photos or contacts does not guarantee their complete disappearance from the memory of the drive. In order for the new owner to not be able to access your passwords, banking applications and personal correspondence, you need to perform a full Hard Reset. In this article, we will discuss a step-by-step algorithm of actions that will help to safely prepare the gadget for sale.
Preparing the device for complete data deletion
Before embarking on radical erasure measures, it is important to conduct a series of preparatory operations to avoid locking the device by the future owner due to linking to accounts or losing important data that you may have forgotten to store, first make sure that all valuable files are transferred to external media or to cloud storage.
The critical step is to untie the device from your Mi Account (Xiaomi account), and if you don't, the phone will require you to enter the password from the account that was used on the device before, which is standard protection against theft, but when sold, it becomes a serious obstacle, since the new owner will not be able to activate the smartphone without your participation.
- 🔒 Make sure you know the screen unlock password and pattern lock, as they will be required to confirm the reset.
- ☁️ Check synchronization of contacts and notes with your Google account or Xiaomi cloud.
- 📱 Back up the list of installed apps and their settings through the built-in menu.
- 🔌 Charge the battery of the smartphone to a minimum 50-60%, So that the discharge process is not interrupted due to discharge.
⚠️ Warning: If you don't untie Mi Account before selling, the phone will turn into a "brick" for the new owner after reset.Find the device feature blocks activation without the owner's password.
☑️ Checklist for preparation for discharge
Disabling security features and accounts
The most common error when selling Xiaomi equipment is ignoring the binding to Google and Mi Cloud services. Even if you reset through the recovery menu, the security system can request verification of identity, so the first step in settings (Settings → Mi Account) is to exit the profile.
Once you leave your account, Xiaomi should do the same with your Google account. Go to Settings → Accounts and Sync → Google and delete your profile from your device. This action will break the connection between your phone and your services like Google Play, Drive and Mail.
It’s also worth checking for active device administrators. Often, corporate profiles or parental control apps can prevent complete deletion of data. Go to Settings → Passwords and Security → Privacy → Device administrators and unenlist any suspicious or unnecessary applications.
| Type of account | Way of shutdown | Consequences of neglect |
|---|---|---|
| Mi Account | Settings → Mi Account → Get out | Activation lock (FRP lock) |
| Settings → Accounts → Google → Delete | Requesting a password after reset | |
| Find My Device | Settings → Google → Find the device | Impossibility of flashing |
What to do if you forget your Mi Account password?
Backup of important information
The cleaning process is irreversible, so the backup phase is fundamental. Xiaomi owners have several convenient tools to save data. The built-in Security app or Advanced Settings section allows you to create a full copy of the system, including SMS, call log and Wi-Fi network settings.
For photos and videos, it’s best to use Google Photos or manually copy the contents of DCIM and Pictures folders to your computer. Don’t forget the MIUI/gallery/cloud folder if you’ve used cloud-based gallery sync, although when you untie your account, that data should stay in the cloud.
WhatsApp, Telegram and Viber store their correspondence locally. WhatsApp needs to go to Settings → Chats → Backup Chats and click Save to Google Drive. Without this step, the history of the correspondence will be lost forever after reset.
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Use the Local Backup feature in the About Phone section to save your system settings and the location of your desktop icons, which will help you set up your new phone faster.
Resetting settings through the smartphone menu
Once all the preparatory steps are complete, you can proceed to the immediate cleaning, which is the simplest and safest method that most users can use, and it doesn't require a computer connection or any additional software.
You have to open the settings menu and find the About Phone section, and at the bottom of the list you'll find Reset (or Factory Reset) and the system will offer two options: Reset (saves files) and Erase all content. We need the second option to sell.
When you select the option “Erase all contents”, the phone will warn that all data will be deleted without recovery. You will need to enter the unlock password, and after confirmation, a process will begin, which can take from 5 to 15 minutes depending on the memory capacity and speed of the drive.
⚠️ Attention: During the reset process, it is strictly forbidden to interrupt the operation of the phone. SIM-card and memory card (if any) until the device is fully rebooted to the welcome menu.
Cleaning through Recovery Mode (Recovery)
If you can’t access the settings menu because of a software bug or a forgotten password (but if you’ve already untied accounts!), you can use Recovery mode, which is a deeper level of interaction with the system, allowing you to format partitions.
To enter this mode, you need to turn off your smartphone completely. Then press the Volume+ and Power button at the same time. Hold them until the Mi logo or Recovery menu appears. Navigation in this menu is done with volume buttons, and the choice is made by the power button (on older models) or touching the screen (on new ones).
In the Recovery menu, select a language (usually available in English and Chinese) and click Wipe Data. You will then need to confirm the action by selecting Wipe All Data. Once the process is complete, the phone will automatically restart. This method is guaranteed to delete all user partitions.
The sequence of buttons for entering Recovery:
1. Turn off the phone.
2. Clutch Volume Up + Nutrition.
3. Hold until the logo appears.Checking the result and additional actions
Once the device has restarted, you will see a welcome screen with a choice of language, which means that the reset was successful, but before handing over the phone, the buyer is advised to perform a final check, do not connect the phone to Wi-Fi and do not log in to your accounts again.
Take a few initial setup steps to make sure there are no errors or freezes. Check if any files are saved in the internal memory by going to the file manager (if you can run it without setting up).
It's worth taking out. SIM-microSD card and memory card, if you forgot to do it before. SIM-Cards in the sold device - a gross error that can lead to leakage of confirmation codes from banking services.
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A successful reset is confirmed by the appearance of a language selection screen and the absence of your data in the gallery or contacts.