How to fully format Xiaomi Redmi 9A: 3 proven ways

Xiaomi Redmi 9A remains one of the most popular budget smartphones even years after its release. But over time, any gadget begins to “brake”, glitch or simply require a “clean sheet” before selling. Formatting (reset to factory settings) solves most problems, from viruses to freezes. However, an improper reset can turn the phone into a “brick” or irrevocably erase important data.

In this article, we will discuss all the current ways to format Redmi. 9A — From simple reset through settings to hard method through Fastboot, let's focus on the unique feature of this model: the lack of a slot for the device. SD-The basic version of the cards makes it difficult to back up, and we also find out when a soft reset is enough and when full formatting is required, removing all partitions.

When to Format Redmi 9A: 5 Reasons to Make a Sense

Factory resets are not a panacea, but in some cases, they are the only way to bring a smartphone back to life.

• 🐢 The phone has become unbearably slow: applications open on the Internet 10-15 Seconds, animations are "supposed", even after cleaning the cache.
• 🦠 Suspicion of a virus: unfamiliar advertising appears, traffic is consumed in the background, unknown applications are installed.
• 🔄 Before selling or transferring: to prevent the new owner from accessing your accounts, photos and messages.
• 🔧 After a failed update: if the smartphone hovers on the Mi logo or cyclically reboots.
• 📱 System errors: persistent notifications “Com.android.phone app has stopped” or crashes when calling.

However, there are cases where resetting won’t help or even hurt, such as if the problem is a physical breakdown (a broken screen, a faulty battery) or a hardware defect (a speaker is not working, a network is not catching), in such situations formatting will only waste your time.

⚠️ Attention: If Redmi 9A It doesn't turn on at all (no charging response, no vibrating when you press buttons), it's impossible to reset via menu or Recovery. You'll need a special method through Fastboot or contacting a service center.

Preparing for Formatting: What to Do Before Resetting

Formatting erases all the data from internal memory: contacts, photos, messages, application settings, and you can only return it after reset if you make a backup copy in advance. Here is a mandatory checklist before you start:

The Redmi 9A feature is the lack of a microSD slot in the 2/32GB version (there is a slot in the 3/64GB models), which means that you can not back up to a memory card directly in your phone.

• 🖥️ Connect the smartphone to the computer USB and copy files manually (folders) DCIM, Downloads, Pictures).
• ☁️ Use Mi Cloud (free of charge 5GB) or Google Photos for media.
• 📱 Transfer data to another smartphone via Xiaomi Share (in the Settings menu) → Connection and sharing).

It is equally important to remember or untie accounts:

1. Make sure you know the username and password from the Mi Account – after resetting, the phone will require you to enter it to unlock.
2. Untie Google Account (if it was linked) through Settings → Accounts → Google → Delete account.
3. Log out of social networks (VK, Telegram, WhatsApp) – some messengers block the account with frequent changes of devices.

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If you forget the password from the Mi Account, reset it on account.xiaomi.com. After formatting, the phone can lock for 72 hours if you enter it incorrectly!

Method 1: Soft reset via the settings menu (the safest)

If the phone turns on and responds to touch, use this method: it saves system files, deletes only user data and settings, is suitable for eliminating software glitches without the risk of bricking.

Instructions:

1. Open Settings (the gear icon on the main screen).
2. Go to About the Phone. → Resetting settings.
3. Select to erase all data (reset to factory).
4. When you request, enter PIN-code or pattern lock (if installed).
5. Confirm the action by pressing Erase Everything.

It takes 5-10 minutes, and the phone will reboot and suggest that you configure it as new, and this way doesn't remove the system updates -- the MIUI version will stay the same.

⚠️ Note: If after the Redmi reset 9A It requires you to enter the password from the Mi Account, but you do not remember it, do not try to guess! After 5 wrong attempts, the device will be locked for 72 hours.

Method 2: Hard Reset via Recovery Mode (if the phone doesn't turn on)

If Redmi 9A is stuck on the logo, reboots cyclically or does not respond to touch, you will need to use Recovery Mode. This method formats the partition with user data completely, but does not affect system files (unless you choose the Wipe All Data option).

Step-by-step:

1. Turn off the phone (press the power button for 10 seconds if it freezes).
2. Press the Power button + Volume Up button at the same time.
3. Hold on for 10-15 seconds until the Mi logo and Recovery menu appear.
4. Use volume buttons for navigation and power button to select the item.
5. Select Wipe Data → Wipe All Data → Confirm.
6. Once you have finished, select Reboot → Reboot to System.

Redmi 9A uses Xiaomi's stock Recovery, so the interface will be in English. If instead of a menu you see the word No command with the Android robot lying down, then you've held the buttons too long. Repeat the steps, but release the buttons as soon as the Mi logo appears.

Method 3: Full formatting via Fastboot (for power users)

This method removes all partitions, including system files, and requires subsequent flashing.

• The phone doesn’t even load in Recovery.
• Requires to remove custom firmware or root rights.
• You need to “roll back” the version of MIUI (downgrade).

You will need a computer with installed drivers. ADB/Fastboot original USB-cable.

Instructions:

1. Download the official firmware for Redmi 9A (select the Fastboot version).
2. Unpack the archive in a folder on your computer (e.g., C:\MIUI\).
3. Turn off your phone and press the Power button + Volume Down button to enter the Fastboot (a hare in a hat-eared hat will appear).
4. Connect the phone to the PC and open the command line in the firmware folder.
5. Enter the command for full formatting: fastboot erase userdata fastboot erase cache fastboot flash all (the last command will sew the clean system).

Attention! The wrong commands in Fastboot can permanently knock your phone out of order. If you're not sure what you're doing, contact the service center. Once formatted through Fastboot, the phone will be clean, like it was after you bought it, but it will lose its warranty if it was still valid.

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The Fastboot method is the only way to bring the Redmi 9A back to life if it doesn't respond to buttons and loads into Recovery. However, it requires technical skills and official firmware.

What to do after formatting: setting up a smartphone from scratch

After resetting, Redmi 9A will offer to go through the initial setup, and here is the best course of action to avoid future problems:

1. Connect to Wi-Fi – without the Internet, you will not be able to log into the Mi Account and download updates.
2. Log in to the Mi Account that was tied before the reset (if you forgot the password, restore it in advance!).
3. Skip the recovery from the backup if it’s old – it could bring back old glitches.
4. Update MIUI to the latest version via Settings → About Phone → System Update.
5. Install applications manually, starting with the most necessary (messenger, banking applications).

To avoid the “burdening” of the phone:

• 🚫 Do not install applications from unknown sources (enable Settings). → Privacy → Special permits → Installation of unknown applications → Lock everything down).
• 🔄 Clean the cache regularly through Settings → Warehouse → Clean up.
• 🛡️ Turn off autoloading of unnecessary applications in Settings → Battery → Auto-start.

If the phone brakes again after reset, check:

• 🔋 Battery condition (wearing more than 50% leads to lags).
• 📶 Communication quality – weak network signal makes the processor work at its limit.
• 🔥 Overheating – If the body is hot, let the phone cool down.

Frequent Formatting Mistakes in Redmi 9A and How to Avoid Them

Even a simple reset procedure can go wrong, and here are the typical user errors and their solutions:

If, after formatting Redmi 9A:

• 🔄 Cyclically rebooting. → I'm probably running the Fastboot.
• 📵 Not catching the net. → Check if it's inserted. SIM-card (slot on the right) If the problem persists, reset IMEI (root-rights).
• 🔊 It's not working. → Maybe the settings are wrong. Try manually turning the volume on with the buttons.

FAQ: Answers to Frequent Questions About Redmi 9A Formatting