How to identify Xiaomi RoTest: official and hidden verification methods

If you bought a used Xiaomi smartphone or suspect that your device passed through the service center informally, checking on RoTest (or Root Test) will help to identify hidden manipulations with the firmware. This status indicates whether the phone has been unlocked for deep modifications – such as root rights, custom firmware installation, or changes to the phone. IMEI. In some cases, the RoTest tag may deprive the warranty or block OTA-updates, so its detection is critical before buying or selling a device.

In this article, we’ll look at all the current ways to check, from standard MIUI menus to engineering teams and third-party utilities, and focus on why some methods might not work on new models (such as the Xiaomi 14 or Redmi Note 13 Pro+), how to circumvent manufacturer restrictions, and what to do if RoTest status is already activated. If you’re planning to sell a phone or just want to make sure it’s clean, read on.

What is Xiaomi RoTest and why is it important?

RoTest is an internal flag in Xiaomi’s firmware that records whether a bootloader is unlocked or rooted. Unlike the normal Unlocked status that you see on the developer menu, RoTest can stay even after the bootloader is re-locked or reset to factory settings, a kind of black mark that Xiaomi uses to track unauthorized devices.

Why is that critical?

🔴 Warranty: Official service centers may refuse repairs if they detect RoTest, even if the problem is not related to firmware.
🔄 OTA-Updates: Some devices stop receiving updates over the air or get them delayed.
💰 Resale Cost: RoTest phones sell 15-30% cheaper due to the risk of hidden problems.
🔒 Security: If the phone was previously belonged to someone else, spyware modules could be installed through root.

It's important to understand that RoTest doesn't always mean problems, like people who install LineageOS or Pixel Experience knowingly unlock the bootloader, but if you buy a phone "as new," it should be a flag to alert.

📊 You check RoTest before buying a used Xiaomi?

Yeah, always.

Only if the phone is suspiciously cheap

No, I don't know what it is.

I don't care.

The easiest method is to use the built-in MIUI tools. It works on most devices released after 2019 (including Redmi Note 10/11/12, POCO X3/X4/X5, Xiaomi 12/13).

Open the Settings. → The phone.
Find the MIUI version line and tap it 7-10 times until you become a developer!
Return to the main settings menu and go to Additional → For Developers (or Settings → System → Advanced Settings → For Developers on new versions).
Scroll down to the Mi Unlock Status or bootloader Status block.

There are three options:

Status	Meaning	Action
Locked	The bootloader is locked, RoTest is missing.	The device is "clean", you can safely use.
Unlocked	The bootloader is unlocked, but RoTest may not be activated.	Additional verification is required (see Method 3).
RoTest: True or Device is unlocked and cannot be trusted	RoTest activated, device modified.	Resetting to factory settings or flashing is recommended.

⚠️ Note: On some firmware (for example, MIUI Global Stable for Xiaomi 13T) The bootloader status may not be available. In this case, use alternative methods.

☑️ Preparation for RoTest inspection

Enable debugging over USBMake sure your phone is charged >50%Connect to a stable Wi-FiDisable VPN/proxy

Done: 0 / 4

Method 2: Engineering codes for hidden diagnostics

If the developer menu does not show the status of RoTest, you can use the service USSD-These commands run at the modem level and bypass the constraints. MIUI. Important: Codes may vary depending on regional firmware (Global, China, EEA).

Open the Phone app and enter the following combinations:

📱 ##4636## → Go to the Phone Information tab and check the bootloader status bar.
🔓 ##7378423## (for older Redmi models 4/5) → Service info section → Configuration.
🛠️ ##36446337## → The Engineering Mode tab (works on the POCO F1/F2/F3).

If a Connection problem or invalid MMI code appears after entering the code, it means:

⚠️ Attention: Your firmware has blocked the engineering codes. MIUI China or custom firmware. Use Method 3 or 4.

On newer models (Xiaomi 14 Ultra, Redmi K70), the engineering codes are often disabled, in which case only a PC connection or specialized applications will help.

What do I do if the codes don't work?

If the engineering codes are blocked, it could mean that: 1.The device is on firmware for the Chinese market (MIUI China, where many diagnostic features are disabled. 2. The manufacturer has removed support for codes in new versions MIUI (3. There is a custom firmware installed (e.g. ArrowOS or HavocOS) that ignores the standard commands. ADB-commands (Method 4) or applications like Mi Check (Method 5).

Method 3: Checking through Fastboot (for advanced users)

This method requires you to connect your phone to your computer and use a fastboot tool, which is suitable for devices where MIUI hides RoTest status, and gives you a 100% accurate result.

🖥️ A computer with installed Xiaomi drivers and ADB/Fastboot.
🔌 Cable USB (preferably original).
📱 Phone with unlocked OEM Unlock (in the developer settings).

Step-by-step:

Turn off the phone and press Volume Down + Power to enter Fastboot mode.
Connect the device to your PC and open the command prompt (cmd in Windows or Terminal in macOS/Linux).
Enter the command: fastboot getvar all Look for the lines: (bootloader) device_unlocked: 1 (bootloader) rotest: true
If rotest: true or device_unlocked: 1 — device modified.

⚠️ Note: On some devices (Redmi Note 12 Pro) 5G, POCO X5 Pro) Xiaomi hides the rotest variable in fastboot. In this case, use an alternative command:

fastboot oem device-info

Search for Device unlocked: true.

1. Install Mi Flash Tool drivers manually.

2. Use USB 2.0 port (not 3.0)

3. Disable driver signatures in Windows (to do this, type in the command line bcdedit) /set nointegritychecks on and restart the PC).-->

Method 4: RoTest Verification Applications (without PC)

If you're uncomfortable with fastboot or engineering code, you can use third-party apps that analyze system files and output RoTest status in a convenient way.

Annex	Reference	Features
Mi Check	Google Play	Shows the status of the bootloader, IMEI, SN and RoTest. Works without root.
DevCheck	Google Play	Displays detailed firmware information, including hidden flags.
Root Checker	Google Play	Checks for root and bootloader status, but may not show RoTest on new models.

How to use Mi Check:

Download and install the app.
Open it and give access to the device information.
Go to the Device Info tab.
Scroll to the Bootloader Status or Security block.

If you see the results,

🔒 Bootloader: Locked + RoTest: False → clean-up.
🔓 Bootloader: Unlocked + RoTest: True → were modified.
❓ Unknown status → Firmware modified, diagnostics via fastboot required.

💡

Mi Check apps may not work on custom firmware (e.g. Xiaomi.EU or Pixel Experience) because they change the system paths that RoTest information is read.

Method 5: Analyze system logs (for experts)

If all the previous methods failed, you can analyze the MIUI system logs, which requires root rights or access to ADB, but gives you the most complete information.

📱 Included Debugging by USB (developer-setting).
🖥️ Computer installed ADB.
📝 Text editor (for example, Notepad)++).

Instructions:

Connect your phone to your PC and type in the command line: adb logcat -d | findstr "rotest" or for a detailed log: adb logcat -d > miui_log.txt
Open the file you received. miui_log.txt and find the lines with mention: ro.boot.verifiedbootstate, ro.boot.flash.locked, ro.boot.rotest.
If you find rotest=1 or verifiedbootstate=orange, the device is modified.

Example output for a "clean" device:

ro.boot.verifiedbootstate=green


ro.boot.flash.locked=1




ro.boot.rotest=0

For a RoTest device:

ro.boot.verifiedbootstate=orange


ro.boot.flash.locked=0




ro.boot.rotest=1

⚠️ Note: Log analysis can take a long time, as MIUI It generates thousands of lines in a few minutes. Use filters to narrow down your search:

adb logcat -d | findstr "boot verifiedbootstate rotest"

What to do if RoTest is detected

If the check shows that RoTest is activated, you have several options:

Reset to factory settings: Go to Settings → System → Settings Reset → Delete all data. This will delete user data, but does not always reset RoTest (depends on the model).
Reflash the device with official firmware: Use the Mi Flash Tool and flash the Fastboot firmware for your model. This will return Locked status, but requires an unlocked bootloader. How to flash Xiaomi through Mi Flash Tool1. Download the Mi Flash Tool from Xiaomi’s official website. 2. Download Fastboot-ROM for your model (for example, tissot_global_images... For the Redmi Note 7). 3. Unpack the archive with firmware in a folder without Cyrillic characters. 4. Connect your phone in Fastboot mode and select the Clean All option in Mi Flash. 5. Press Flash and wait until it is completed (5–10 minute).
Xiaomi official centers can reset RoTest through service utilities, but this is a paid service (1500 to 3 000). ₽).
Sell/Exchange device: If the phone is recently purchased, return it to the seller with a claim of a hidden defect. At the sites (Avito, Yula) indicate in the description that the device is with RoTest to avoid disputes.

⚠️ Some “masters” offer to “clean RoTest” for 500-1000 ₽ with software like MTK Engineering or Qualcomm Firehose. This is a scam! RoTest is stored in aboot secure section and cannot be removed without a full flashing.

FAQ: Frequent questions about Xiaomi RoTest

Can you cheat RoTest when selling a phone?

Technically, no. RoTest is written in the hardware partition of memory, and it can't be reset without the official firmware, and some vendors try to hide this status by rolling back MIUI to the old version or using applications like Magisk Hide, but an experienced buyer will easily find out through fastboot or engineering codes.

Why is the new Xiaomi already running RoTest?

This is possible in three cases: the phone was returned to the store and resold as a new one; the device was tested at a service center (e.g., a camera module test); this is a grey import from China, where the bootloader is unlocked by default for some models (e.g., the Redmi K60 for the domestic market); Check the box and documents: if it says For China Market, chances are that RoTest is activated from the factory.

Does RoTest affect the performance of the phone?

No, RoTest is just a firmware tag, and it doesn't affect speed, autonomy, or communication quality, but some system applications, like Mi Pay or Mi Cloud, can block access to their functions on devices with the bootloader unlocked.

Can I get RoTest by accident?

Yes, in rare cases: If you've updated your firmware through TWRP (unofficial recoveries). If your phone automatically upgraded to a beta version of MIUI with a bug. If you've used apps to change your IMEI or serial number. To avoid that, always update through Settings → System Update or Mi Flash Tool.

How to check RoTest on Xiaomi without turning on your phone?

If the phone is not turning on but charging (the indicator is on), connect it to your PC and use the command: fastboot getvar rotest If the device is completely dead, you can only detect RoTest through the diagnostic equipment in the service center (for example, DC-Phoenix or UFi Box).