This Version Is For Closed Testing On Xiaomi: How To Fix The Error

You turned on a Xiaomi smartphone or TV and it says, “This version of the software is for closed testing”? This means that the device has a beta version of the firmware designed for internal testers of the company. Such builds often contain unstable features, errors and limitations — for example, blocking updates through standard channels or problems with the operation of Google services.

The error may occur after a failed update, purchase of a used device with test firmware or manual installation of a custom version of MIUI. In this article, we will analyze all the working ways to return the device to a stable version - from simple reset to flashing through Fastboot. Also explain why you can not ignore this problem and what is fraught with the use of test builds in everyday use.

Importantly, the methods are different for smartphones (Redmi, POCO, Mi) and Mi TVs — we’ll look at both options. If you’re not sure about your skills, you’d better go to a service center so you don’t turn it into a brick.

Why is it a mistake and why is it dangerous?

The message of closed testing is not just a warning, but a sign that the device has an unstable version of MIUI, designed for developers and a limited number of users, such firmware distributed through the Mi Pilot program or internal Xiaomi channels and have a number of critical features:

• 🔴 Absence OTA-Updates: The device will not receive automatic updates through Settings → Update of the PO.
• 🔴 Incompatibility with services: there may be failures in the work of Google Play, banking applications or system functions.
• 🔴 Security vulnerabilities: Test builds often contain unpatched bugs that can be exploited by attackers.
• 🔴 Blocking functions: for example, on Mi TV Netflix or YouTube may not work in the 4K.

In addition, some test firmware automatically sends data about the device to Xiaomi, which can violate privacy. If you bought a used gadget with such an error, the previous owner may have been a participant in the testing program and did not return the device to a stable version before selling.

⚠️ Note: Using test firmware on devices with an unlocked bootloader increases the risk of installing malware. Attackers can exploit vulnerabilities in unstable builds to gain root access.

How to check the firmware version on Xiaomi

Before you start fixing, make sure that the problem is really related to the test firmware.

1. On your smartphone, go to Settings → About Phone → MIUI version.
2. On Mi TV, open Settings → About TV → Software version.

Note the format of the version. Test builds usually contain:

• 📌 Suffixes DEV, BETA, INTERNAL or TEST (case: MIUI 14.0.5.0.TKLCNXM DEV).
• 📌 assemblies number with the letter V at the end (e.g, V14.0.1.0.TKLCNXM).
• 📌 The build date is newer than the latest stable version on Xiaomi’s official website.

You can also use the command in ADB to get full firmware information:

adb shell getprop ro.miui.ui.version.name

Method 1: Reset to factory settings (soft method)

If the test firmware is installed on top of the stable version and does not block access to the settings, try a hard reset. This will delete all data, but can return the device to the last stable build if it is saved in the recovery section.

Instructions for smartphones:

1. Go to Settings → Additional → Recovery and Reset.
2. Select Reset and confirm the action.
3. After the reboot, check the MIUI version in the settings.

For Mi TV:

1. Open Settings → Device → Reset settings.
2. Enter. PIN-code (default 0000 or 1234).
3. Confirm the reset and wait for the reset.

⚠️ Note: On some devices, the reset does not remove the test firmware, but only clears user data. If the error persists after the reset, proceed to the following methods.

Save important data (photos, contacts) on PC

Record accounts and passwords (will be deleted)

Connect the device to charge (battery > 50%)

Make sure there is a backup copy-->

Method 2: Update via Recovery (for smartphones)

If the reset didn't work, but the device is still booting, try installing stable firmware through Recovery.

• 📱 Device not locked (no request for Mi Account after reset).
• 📱 Access to the Recovery menu (clamping power) + Volume up when switched on).
• 📱 On the official website of Xiaomi available stable firmware for your model.

Step-by-step:

1. Download the latest stable firmware for your model from Miui Download (choose Global or EEA region).The file should have a.zip extension and weigh ~2-3GB.
2. Rename the file to update.zip and move it to the root folder of the device’s internal memory.
3. Turn off your smartphone and press Power + Volume up to enter Recovery.
4. Select the language (English), then Install update.zip to System.
5. Confirm the installation and wait for completion (10-15 minutes).

If the process is successful, the device will restart to a stable version of MIUI. If E: Footer is wrong, then the firmware is not suitable for your model or damaged.

💡

Before downloading the firmware, check its hash amount (MD5) using the 7-Zip utility or online services.

Method 3: Fastboot Flashing (for power users)

If previous methods have failed, it remains to completely flash through Fastboot, which requires an unlocked bootloader and PC with ADB/Fastboot drivers installed.

• 🔧 Not loaded into the system.
• 🔧 Blocked by Mi Account Account.
• 🔧 They have a damaged test firmware.

What you need:

• 💻 Computer with Windows/Linux and installed Platform Tools.
• 🔌 Cable USB (preferably original).
• 📦 Fastboot Firmware for your model (download from Xiaomi Firmware Updater).
• 🔓 Unlocked bootloader (if not, read the instructions below).

Firmware process:

1. Unpack the archive with firmware in the folder platform-tools.
2. Turn off your smartphone and press Power + Volume down to log into Fastboot.
3. Connect the device to your PC and check for detection by command: fastboot devices If the device is not displayed, install the drivers manually through Device Manager.
4. Launch the file. flash_all.bat (For Windows) or run the command: fastboot flash all The process will take 5-10 minute.

⚠️ Attention: Continuous power is critical! If a PC or smartphone shuts down while you're firmware, the device can turn into a brick. Use a UPS or laptop with a charged battery.

Method 4: Correction for Mi TV (features)

Xiaomi TVs have a different update mechanism, so the methods for smartphones are not suitable here. If the Mi TV screen displays a message about the test firmware, follow this instruction:

Method 1: Update via USB

1. Download the latest stable firmware for your model from the Xiaomi Support website (Mi TV section).
2. Unpack the archive and copy the update.zip file to a flash drive formatted in FAT32.
3. Put the flash drive in. USB-TV port and go to Settings → Update of the PO → Update through USB.
4. Select the update.zip file and confirm the installation.

Method 2: Reset via service menu

If the update doesn’t help, do a full reset:

1. Open Settings → Device → Reset settings.
2. Enter the code 1234567890 (universal for Mi TV).
3. After the reboot, the TV should offer to install a stable firmware.

💡

On Xiaomi TVs, you can’t flash your device through Fastboot – only through USB or OTA. If both methods do not work, contact the service center with a request to re-follow. SPI-flash.

How to unlock the bootloader on Xiaomi (if required)

Most Xiaomi devices require an unlocked bootloader to run through Fastboot. If you see a device is locked error, follow this instruction:

Step 1: Linking your Mi Account

1. Register your Mi Account on Xiaomi’s website.
2. On your smartphone, log into this account in Settings → Accounts → Mi Account.
3. Link the phone number to your account (required to unlock).

Step 2: Requesting to Unblock

1. Download the Mi Unlock Tool and install it on your PC.
2. Log in to Fastboot on your smartphone (clamp Power + Volume down).
3. Connect the device to your PC and start the Mi Unlock Tool.
4. Sign in with the same Mi Account as you do on your smartphone.
5. Press Unlock and wait until it is completed (can take up to 72 hours due to Xiaomi restrictions).

Once unlocked, you can flash the device through Fastboot. Note: unlocking resets all data and can result in some features being blocked (e.g., Widevine L1 for watching Netflix in HD).

Frequent mistakes and their solutions

When you fix the closed testing error, you're going to have a problem, and you're going to see the most common ones.

If none of the methods worked, it is possible that the device has custom firmware installed (for example, LineageOS or Pixel Experience).

1. Install the original recovery (e.g. OrangeFox or TWRP).
2. Swipe the official firmware through Fastboot with the flag --lock, to return the loader lock.

FAQ: Answers to Frequent Questions