Update Android on Xiaomi Redmi: 3 proven ways + error solving

Why You Should Update to Xiaomi Redmi and When Not to

Xiaomi Redmi firmware updates aren’t just “beautiful numbers” in settings. New versions of MIUI bring critical security fixes, battery optimization, and even hidden features that the manufacturer doesn’t always mention in changelog. For example, MIUI 14 for Redmi Note 12 Pro+ added support for Dolby Vision for Netflix — but only those who updated and checked the settings manually learned about it.

However, blindly chasing the latest versions is not always wise. If your Redmi 9A is running MIUI 12.5 and the new firmware weighs 2.8 GB - is it worth the risk? In 2023, Redmi K50 users complained massively about bugs with Always-on Display after upgrading to MIUI 14.0.4. So always check the feedback on the forums (4PDA, XDA) about a particular version for your model before upgrading.

In this article, we will analyze all the current ways of updating – from automatic OTA to manual firmware through Fastboot, and also tell you how to get out of the “perpetual boot cycle” (bootloop) if something goes wrong.

Method 1: Automatic Air Update (OTA)

The most secure and recommended method is Over-The-Air (OTA), which is suitable for 90% of users, because:

• 🔄 Stores all data and settings
• 🛡️ Preliminary compatibility check is carried out
• 📶 It only requires stable internet (Wi-Fi or mobile data)

Instructions:

1. Open Settings → About the phone → System update.
2. Click Check for Updates (if the button is inactive, wait 10 seconds).
3. If a new version is available, click Download (file weight is usually 1.5-3 GB).
4. After downloading, select Install Now or Install at night (if you don't want to wait).
5. The phone will restart and install the update (it will take 5-15 minutes).

⚠️ Note: If after the update OTA phone hangs on the logo MI After 20 minutes, don't panic. This is normal for the first 2-3 reboots. But if the screen doesn't respond to presses for more than 30 minutes, force the device to restart. + Volume Up for 10 seconds and re-install.

Battery charge ≥ 50% | Wi-Fi connection (not mobile internet) |Free ≥ 4GB of storage |Disable VPN/proxy |Close all background applications-->

Method 2: Manual updates with Recovery Mode

If OTA doesn’t work (for example, because of a Xiaomi server failure or an operator lock), you can manually install firmware through Recovery.This method saves user data, but requires:

• 📱 Unlocked bootloader – not necessarily for official firmware
• 🔋 Battery charge. ≥ 70%
• 📁 Correct firmware file (only for your model!)

Step-by-step:

1. Download the official firmware for your model from the Xiaomi Firmware website. The file name must contain the code of your device (for example, the code of the file, ingres_global_images... For the Redmi Note 11 Pro+ 5G).
2. Rename the file to update.zip and move it to the root folder of internal memory (not to folders!).
3. Turn off the phone, then press Power + Volume Up to log into Recovery Mode.
4. Select the language, then Install update.zip to System.
5. Confirm the installation and wait until the completion (the process will take 5-10 minutes).

⚠️ If the phone is installed via Recovery and it is "Can't verify update" error, it means:

• 🔹 The firmware file is damaged (download again).
• 🔹 You downloaded the firmware for another model (check the device code in Settings). → The phone. → Model).
• 🔹 You have custom firmware installed (e.g. Pixel Experience) – in this case you need a full reset.

Method 3: Fastboot (Mi Flash Tool)

This is the most radical method used when:

• 🔧 The phone is not turned on (brick)
• 🔄 We need to roll back to the old version. MIUI
• 🚫 OTA Recovery is not working due to a damaged system.

To run through Fastboot, you will need:

• 💻 Windows computer 10/11 (on Mac/Linux Mi Flash Tool is not working properly)
• 🔌 Cable USB (preferably original)
• 📁 Firmware in.tgz format (download only from the official website)
• 🔓 Unlocked boot loader (instruction below)

Instructions:

1. Install the Mi Flash Tool and drivers, so you're trying to install too old firmware. In this case: Download the newer version. MIUI (Even if it's not the one you want it to be. Run it through the Fastboot. Then try again with the version you want it to be. 1. Reconnect. USB-cable to another port (preferably) USB 2. Run the Mi Flash Tool on behalf of the administrator. 3. Check in Device Manager that the phone is defined as "Android Bootloader Interface." 4. Disable the antivirus (it can block drivers).--> How to unlock the bootloader on Xiaomi Redmi Without unlocking the bootloader, you will not be able to flash custom software or roll back to the old version MIUI Xiaomi officially allows unlocking, but the process takes up to 7 days (due to account verification).Instructions: Link your Mi Account account to your phone: Settings → Xiaomi account → Come in. Activate debugging on USB: Settings → The phone. → Version. MIUI (Press 7 times, then Settings → Additionally. → For developers → Debugging by USB. Download the Mi Unlock Tool and run it on your PC. Sign in to the same Mi Account as your phone. Connect your phone in Fastboot (Power) mode. + Click Unlock – If the account is new, a waiting message (usually 168 hours) will appear). ⚠️ Attention: After unlocking the loader: 🔹 All data will be deleted from the phone (reset to factory settings). 🔹 Some features (such as Mi Pay or Face Unlock) may stop working. 🔹 Xiaomi warranty is maintained, but the service center may refuse repairs under warranty if the problem is related to firmware. 💡Unlocking the bootloader is an irreversible process, and even if you block it back, some features (like Widevine) are not available. L1 for Netflix HD) may not recover. Even official updates sometimes go wrong when updating Xiaomi Redmi. Here are the most common errors and their solutions: Error Reason Decision Can't verify update Damaged firmware file or model mismatch Download firmware again, check the Error 7 model code (in Recovery) Incompatible version MIUI (For example, trying to put global firmware on the Chinese model) Download firmware for the correct region Anti-rollback check fail Attempt to roll back on too old version MIUI First, flash the intermediate version Hanging on the logo MI Incomplete installation or module conflict Wait 20–30 minutes or force reboot This MIUI Version cannot be installed on this device Firmware for another device Check the model code and download the correct firmware If the phone does not turn on after a failed update (bootloop), try: + Volume Up for 15 seconds for forced reboot. Log in to Recovery and select Wipe Data → Wipe All Data: If it doesn't work, flash your phone through Fastboot (see Method 3). 1. Reset to factory settings (Settings) → Additionally. → Recovery and reset). 2. Recovery firmware re-installation. 3. Check to see if it has crashed. IMEI (Enter *#06# - if you need to restore the number instead of "null" QCN-file).--> How to Reverse to the Old Version MIUI Sometimes new versions MIUI They are worse than the old ones, for example, in MIUI 14 Some Redmi users K40 You have experienced a processor overheating. To roll back: Download the desired firmware version from Xiaomi Firmware Updater (choose Stable, not Developer). If you roll back 1-2 versions, you can use Recovery (see Method 2). MIUI 14 on MIUI 12.5) – Fastboot will be required (see Method 3). ⚠️ Note: When you roll back on the old firmware: 🔹 All data will be deleted (take a backup copy through Settings). → Additionally. → Backup). 🔹 Some applications (such as banking) may require re-authorization. 🔹 If the phone stopped seeing after the phone rolled back SIM-Maps, stream modem files through Fastboot. FAQ: Frequent questions about Xiaomi Redmi update Can Xiaomi Redmi update without data loss? OTA But if you run through Fastboot (especially with the Clean All option), all data will be erased. Always back up through Settings. → Google → Backup or Mi Cloud. Why doesn't it come OTA-Update to my Redmi? possible reasons: 🔹 Your model is no longer supported (e.g. Redmi) 4X No updates since 2021). 🔹 Custom firmware installed (OTA It only works on official software). 🔹 Regional restrictions (e.g. Chinese firmware updates later than global ones). 🔹 Xiaomi server failure (check status on Downdetector) Solution: download firmware manually and install it through Recovery. How to find out which version MIUI The official changelog Xiaomi doesn't always reflect real bugs. To find a stable version: Go to the forum 4PDA Look for topics called "[Firmware Discussion]." Look at the last 10 to 20 pages -- users usually write about bugs in new versions. Look for versions marked "Stable" (not Developer or Beta). Example: the Redmi Note 10 Pro is considered stable. MIUI 13.0.15, and MIUI 14.0.3 has camera bugs. What to do if the battery runs out after the upgrade? This is normal for the first 2-3 days after the update - the system indexes files and optimizes the work. If the battery goes down quickly for longer than a week: Check battery consumption in Settings → Battery → Battery use. If an application consumes >15%, limit its activity. Turn off Autobrightness and manually set the brightness to 50-60%. Turn on Battery Mode in the settings. If it doesn't work, reset to factory settings (but check reviews of this version first). MIUI Can you upgrade Xiaomi Redmi from a computer without the Mi Flash Tool? Yes, there are alternative methods: 🔹 XiaomiTool V2 — utility with a graphical interface for firmware and unlocking. 🔹 ADB Sideload: Connect your phone in Recovery mode, then type in the command: adb sideload update.zip 🔹 Fastboot via terminal: if the Mi Flash Tool doesn't work, you can manually flash each section: fastboot flash boot boot.img fastboot flash system system.img fastboot flash vendor vendor.img But these methods require command knowledge and increased caution – an error can lead to a brick.