Direct Service app on Xiaomi: hidden features, security and instructions for use

If you own a Xiaomi, Redmi or a smartphone POCO, You may have come across the name Direct Service, a mysterious system application that doesn't appear on the menu, but pops up periodically in forum discussions. What is the tool, why is it hidden from view, and whether it can be used to diagnose or repair the device without risk?

Direct Service is actually Xiaomi's internal service tool for testing hardware components, calibrating sensors, and performing low-level operations. It's not designed for the average user, but if done correctly, it can be a powerful technical helper. However, careless handling can lead to bootloader lockdowns, system failures, or even "bricking" the device. In this article, we'll go into detail what Direct Service can do, how to run it, and what operations can be performed without risk.

What is Direct Service on Xiaomi and Why You Need It?

Direct Service (sometimes referred to as DirectService or com.xiaomi.directservice) is an embedded application that Xiaomi uses to:

• 🔧 Testing of hardware components (display, camera, speakers, microphone, accelerometer, etc.) at the production stage and in service centers.
• 📊 Calibration of sensors – for example, adjustments to the operation of a gyroscope, compass or approach sensor.
• 🔄 Resetting settings at the firmware level (not to be confused with a regular reset via the settings menu!).
• 🔍 Diagnostics of malfunctions not visible in standard tools like ##4636##.

This application is not intended for end users, so it's hidden in the system. ADB, It's important to understand that Direct Service works at the level of the system. MIUI Android, so the wrong commands can have serious consequences.

Why doesn't Xiaomi remove this tool from the firmware? First, it's for service centers. Second, some features (like testing the display for broken pixels) can be useful to users if they know how to use them. But there's a dilemma: on the one hand, it's a useful tool, on the other hand, it's dangerous if you use it at random.

How to run Direct Service on Xiaomi: Official and Unofficial Ways

There are several ways to access Direct Service, but not all of them are secure.

1. Through the engineering menu (the safest way)

Some Direct Service features are duplicated in the standard engineering menu to open:

1. Open the Phone app.
2. Enter the code: ##4636###.
3. Select the item Testing equipment.

Here you'll find basic tests of display, camera, sensors and networking, but these are just a few of what Direct Service can do.

2. Through ADB (power-user)

If you need advanced features, you can run Direct Service through ADB (Android Debug Bridge:

1. Enable USB Debugging in the Developer Settings → About Phone → MIUI Version – Press 7 times, then go back to Additional Settings → For Developers.
2. Connect your phone to your PC and execute the command:

adb shell am start -n com.xiaomi.directservice/.MainActivity

If the command doesn't work, maybe your Xiaomi model has a path to activate another one, and then you can try an alternative way.

3. Through third-party applications (at risk)

Google Play and third-party software have utilities like Mi Direct Service Launcher or Xiaomi Secret Codes that promise quick access to hidden features.

⚠️ Note: These applications often require root rights or contain malicious code. We do not recommend using them, as they may compromise the security of your device.

USB debugging activated

Installed ADB drivers on PC

Data backup created

Battery charge of at least 50%

The device model is checked for compatibility-->

Direct Service: What can be tested

If you were able to run Direct Service, you'll see a menu with a few tabs, and let's look at the most useful features:

Direct Service is especially useful for diagnosing hardware problems, such as if you're out of work. NFC, You can check if the system sees an antenna, or if the firmware is a problem, or if the camera is giving out artifacts, the test will help you determine whether the module or the software is to blame.

But there are nuances:

• 🔴 Not all tests work on custom firmware (like LineageOS or Pixel Experience).
• 🔴 Calibration of sensors may be lost after the update MIUI.
• 🔴 Direct Service resets don’t always clean a partition /data This leads to "ghost" files.

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If the image gets worse after the camera test, try resetting the camera settings through the standard Settings menu. → Annexes → Camera. → Warehouse → Clear the data.

Dangers and Warnings: What Could Go Wrong

Despite its usefulness, Direct Service is a tool that can harm your device.

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) POCO F3) Incorrect use of Direct Service can lead to activation of anti-rollback, the mechanism that blocks the bootloader when trying to roll back firmware, in which case the phone will turn into a “brick” without the ability to recover via Fastboot.

Other possible problems:

• 💥 Loss of warranty – if the service center finds traces of using Direct Service, it can cause a denial of repair.
• 💥 Failures in the operation of sensors - after unsuccessful calibration, the gyroscope can show incorrect data, and the compass can rotate in an arbitrary direction.
• 💥 Lockdown IMEI — On some models (e.g. Xiaomi Mi 11) the wrong commands can be reset IMEI, What will make your phone unsuitable for calls.

To minimize the risks, follow the following rules:

1. Do not change your settings unless you are sure of their purpose.
2. Do not use Direct Service on devices with unlocked bootloader and custom firmware.
3. Before any manipulation, create a backup copy through TWRP Mi Cloud.

Direct Service vs. Other Xiaomi Service Tools

In addition to Direct Service, Xiaomi has other diagnostic tools in its ecosystem.

If you just need to check the phone’s health, an engineering menu is enough. Direct Service should only be used in cases where standard methods do not help – for example, if:

• 📱 Display shows artifacts, but the engineering menu test is successful.
• 🎤 The microphone is not working, although everything is included in the settings.
• 🧭 A compass or gyroscope gives incorrect readings in games and navigation.

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If you’re not sure which tool to use, start with the engineering menu (#4636##). 80% of the time, it’s enough for diagnosis.

Next Next post: When Direct Service Can Save Your Xiaomi

Let’s look at the real-life situations where Direct Service is useful:

1. Check the display for broken pixels before buying a used phone

If you buy Xiaomi with your hands, the seller can hide the screen defects to identify them:

1. Launch Direct Service.
2. Select Display Test.
3. Turn on the Red, Green, Blue, Black, White modes in turn.
4. Check the screen for broken pixels or backlights.

Reconstruction of work NFC post-refresh

Sometimes after the update MIUI stop working NFC. In this case:

1. Launch Direct Service.
2. Move to the NFC Test.
3. Press Reset. NFC Configuration.
4. Reboot the phone.

In most cases, this solves the problem without resetting the settings.

3. Calibration of the accelerometer for games

If the games are PUBG Mobile or Genshin Impact control via phone tilt is not working properly, calibration will help:

1. In Direct Service, select Sensor Test.
2. Press the Calibrate Accelerometer.
3. Put the phone on a flat surface and wait for completion.

⚠️ Warning: If after calibration sensors began to work worse, return factory settings through Settings → System system → Reset settings. Do not use Direct Service for this, as this may cause a configuration failure.

How to remove or disable Direct Service (and whether to do so)

Some users want to remove Direct Service for fear that it consumes resources or poses a security risk.

• 🔹 The application does not work in the background and does not consume battery.
• 🔹 It does not have access to the Internet, so it does not transmit data.
• 🔹 Removal can lead to unstable operation of the system, as some modules MIUI depend on him.

If you still want to turn it off,

1. Get root rights (for example, through Magisk).
2. Use Root Explorer or ADB, to move the file /system/priv-app/DirectService/DirectService.apk folder.
3. Reboot the phone.

But remember:

⚠️ Note: Some models (e.g. Xiaomi Mi 12 or Redmi) K50) Deleting Direct Service causes com.android.phone error and constant reboots.

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If you are hindered by the presence of Direct Service in the list of applications (for example, when searching), you can simply hide it through Settings. → Annexes → Show all applications → Three points. → Hide the system.

FAQ: Frequent questions about Direct Service on Xiaomi