Xiaomi Redmi 7A: 5 ways to return the smartphone to factory condition

Xiaomi Redmi 7A is one of the most popular budget smartphones, but over time, even it begins to “brake”, glitch or require preparation for sale. Complete cleaning of the device is not just deleting files, but a set of measures to return the phone to “clean” state. In this article, we will analyze all possible methods from a standard reset via the menu to deep formatting with Fastboot and deleting hidden MIUI data.

It’s important to understand that simply removing apps or cleaning up cache doesn’t solve the problem of accumulated junk: account traces, temporary files, residual application data, and even patches that take up space and slow down, we’ll show you how to completely erase all user data, including hidden partitions that are not cleaned by a standard reset.

1.Preparation for cleaning: what to do before discharge

Before you start cleaning, follow a few critical steps that may lead to data loss or device lockdown.

First, save all the important data. Even if you plan to sell your phone, copy photos, contacts and documents to your PC or cloud. Use Settings → About your phone → Backup to create a backup in Mi Cloud (if your account is not locked). Alternatively, manually copy files through Explorer → Internal Memory.

Second, unplug all accounts. This is especially important for Google and Mi Account, as once reset, the phone may require the last owner to enter the data (FRP protection).

• 🔗 Settings → Accounts and synchronization → Google → Delete your account.
• 🔗 Settings → Xiaomi account → Deactivate your account.
• 🔗 Turn off Settings. → Passwords and security → Remote management (if enabled).

Third, charge the phone to at least 50%. The cleaning process can take up to 30 minutes, and if the battery runs out in the middle, there is a risk of "bricking" (turning into a "brick"). Also prepare a USB cable and a computer (required for methods with Fastboot).

2. Standard reset via the settings menu

The easiest and safest way is to reset through the built-in MIUI settings. It is suitable if the phone is turned on, there are no major crashes, and you do not plan to remove system updates.

Instructions:

1. Open Settings → About the phone → Reset settings.
2. Choose Delete All Data (not to be confused with Settings Reset, which doesn’t erase files!).
3. Enter. PIN-code or pattern lock, if requested.
4. Confirm the action by pressing Erase Everything.

It takes 5-15 minutes, and when you reboot, you'll see the screen of the initial setup, just like you did after you bought it, but this method doesn't remove:

• 📁 Residual files in folders /data and /cache.
• 🔄 System Updates (If you want to go back to factory firmware, read section 4).
• 🔐 Hidden Mi Account Data (Can Cause Problems in Selling).

Make sure your phone doesn’t ask for an old Google account|Check the free space in memory|Update apps in the Play Market|Set up autosynchronization of contacts-->

If the phone still brakes after reset, proceed to the next method.

3.Right reset via Recovery Mode

If your smartphone doesn’t turn on, freezes on the logo or doesn’t respond to touch, use Recovery Mode, which erases all data, including user files, but does not affect system partitions.

How to log in to Recovery:

1. Turn off the phone (press Power + Volume up for 10 seconds).
2. Keep Power + Volume up until the Mi logo appears.
3. Let go of Meals, but keep Volume up until the menu appears.

From the Recovery menu (English or Chinese) select:

• 🔧 Wipe Data → Wipe All Data (complete cleaning).
• 🔄 Reboot → Reboot to System (Reboot).

⚠️ Note: Some of the Redmi firmware 7A menu items may differ. If you see Advanced Wipe, select it and tick Dalvik, Cache, Data, System (but this will result in the removal of the firmware!).

4. Deep cleaning through Fastboot (for experienced)

This method is suitable if you want to completely reflash your phone by deleting all system files, including updates. It requires a computer and knowledge of ADB/Fastboot commands.

What you need:

• 🖥️ Computer with Windows/Linux and installed Xiaomi drivers.
• 🔌 Cable USB (preferably original).
• 📥 Firmware for Redmi 7A (Download from the official Xiaomi website).
• 🛠️ Mi Flash Tool (for firmware) or Platform Tools (for commands).

Step-by-step:

1. Turn off the phone and press Volume Down + Power to enter the Fastboot (a hare in a hat-eared hat will appear).
2. Connect your phone to your PC and open the command line in the folder with the platform-tools.
3. Enter the command to check the connection: fastboot devices Must appear serial number of the device.
4. For full cleaning, run fastboot erase boot fastboot erase system fastboot erase userdata fastboot erase cache.
5. If you want to flash a new firmware, use the Mi Flash Tool with the Clean All option.

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If the phone doesn't turn on after the firmware, try pinching Power + Volume up for 20 to 30 seconds. Sometimes a "forced" reboot helps.

⚠️ Warning: The wrong commands in Fastboot can turn your phone into a brick. If you're not sure, use a standard reset (Section 2).

5. Delete hidden data and accounts after reset

Even after a complete reset, traces of the previous owner may remain in the system.

• 🔐 Mi Account (unless properly untied).
• 📱 Google FRP (Reset protection requires you to enter an old account).
• 🗃️ Residual files in folders /misc and /persist.

How to check and delete:

1. FRP-Lock: If after a reset, the phone asks you to enter an old Google account, it has not been deleted before cleaning, the solution is to flash the phone through Fastboot (section 4) or use specialized services (paid).
2. Hidden folders: Connect your phone to your PC and using ADB Do it with adb shell su rm -rf /data/system/gesture.key rm -rf /data/system/locksettings.db This will remove the traces of the pattern lock and PIN-code.

For complete certainty, use the MIUI Hidden Settings app (available from the Play Market) to check:

• 🔍 Status. FRP Lock (Settings) → Additionally. → Status. FRP).
• 🔍 Availability of the Mi Account (Settings) → Accounts. → Hidden accounts).

Formatting internal memory (in addition)

If the phone still shows little space after the reset, it may be that the internal memory is fragmented or filled with hidden files, in which case full formatting will help.

Ways:

For deep formatting via TWRP:

1. Install TWRP Recovery for Redmi 7A (instructions are available on XDA Developers).
2. Sign in to TWRP (similar to Recovery Mode, but with other buttons held).
3. Select Wipe → Advanced Wipe and select Dalvik, Cache, Data, Internal Storage.
4. Confirm the action of the swipe to Wipe.

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Formatting internal memory removes everything, including photos, music and documents. If you want to save files, backup first!

7.A post-clean check: How to make sure your phone is 'clean'

After any cleanup, follow these steps to confirm that the data has been deleted:

1. Memory Check: Go to Settings → Memory. The free space should be close to the factory (about 12-14 GB for the Redmi 7A 16GB).
2. FRP test: Reboot your phone and try to go through the initial setup.If it doesn't require an old Google account, the lock is removed.
3. Search for hidden files: Connect your phone to your PC and check folders:.\Android\data\ - application data may remain here.\MIUI\ - cache of themes and wallpaper.\Tencent\ - WeChat/QQ files (if used)
4. Reset counters: Enter in the dialer: ##4636## Check the Usage Statistics section - if the time is reset, the cleanup was successful.

If you find residual files, repeat the cleanup via Fastboot or TWRP.

FAQ: Frequent questions about cleaning up Redmi 7A