How to check the remote Xiaomi through the phone: diagnosis and setup

Xiaomi's modern ecosystem offers many ways to control equipment, but sometimes the standard remote stops responding or starts to work incorrectly. Before buying a new accessory or carrying a device into the service, it is worth conducting a thorough diagnosis. Owners often wonder whether it is possible to use a smartphone to check the health of the remote, and the answer to it is if you approach it correctly.

There are several methods of checking, depending on the type of connection your device is: infrared (IR) or Bluetooth. Infrared remotes are easier to diagnose, because their signal can be seen by the camera of the phone, whereas Bluetooth remotes will require special applications or analyzers. In this article, we will discuss all the available methods to help you determine where the problem lies: in the remote control itself, in the receiver of the TV or in a software failure.

First, you need to determine the type of remote, because the methods of checking are radically different. If you have a Mi TV Stick or a Mi Box S with voice control, you probably use Bluetooth. Older Mi TV models often come with classic IR remotes. Understanding this difference is the key to successful diagnosis without unnecessary time.

Definition of the type of remote and preparation of equipment

The first step in the diagnostic process is to accurately determine the signal technology. Infrared remotes (IR) require a line of sight between the emitter and the receiver, and Bluetooth devices operate over a radio channel and do not need to be pointed at the TV.

Visually, IR remotes often have a “glass” peephole at the top, although modern Xiaomi models can hide it under plastic. Bluetooth remotes such as the Mi Remote with a microphone button require pairing. To check, you will need a smartphone with a camera (preferably a main, non-frontal) and possibly an installed analyzer application.

⚠️ Note: Do not use a flash phone while checking the IR remote, as bright light can "light up" the camera matrix, and you will not see the infrared glow of the diode.

If you plan to use your phone as a universal remote, make sure your device has an integrated IR port. Many modern smartphones don’t have this feature, so emulating IR signals will require an external adapter or using a Wi-Fi network to control Android TV. Checking for an IR emitter in your phone is a separate procedure, but it is critical to replace a lost remote.

Visual diagnosis of the IR remote with the help of a camera

The easiest and most affordable way to test an infrared remote is to use a smartphone camera. The human eye can't see infrared radiation, but digital camera arrays (especially without an IR filter) can capture this spectrum, and this method allows you to quickly see if the remote is signaling when you press buttons.

To do the test, run the Camera app on your phone. Point the top of the remote (where the emitter is) directly into the camera lens. Press any button on the remote and watch the smartphone screen closely. If the remote is working, you will see flashes of purple or white light on the phone screen that are invisible to the eye.

If there are no flashes, try changing your angle or using another phone’s camera.Some modern smartphones (such as individual iPhone models or Samsung flagships) have powerful IR filters on the main camera, but can pass a signal through the front camera or FaceID sensor.

• 📱 Turn on the camera on your smartphone and point the lens on the “eye” of the remote.
• 🔴 Press any button on the remote and watch the phone screen.
• 💡 Look for flashing glow (usually purple or white) in the remote lens.
• 🔄 If there is no signal, replace the batteries and repeat the procedure.

If you have a remote from Mi Box S or Mi TV Stick that runs on Bluetooth, the camera won't show anything, even if the remote is fully functional, so you can go to software diagnostics.

Software verification of Bluetooth-pulls

Diagnosing Bluetooth remotes requires a more complex approach, since they transmit digital code, not light pulses. Standard Android or iOS systems can not check the performance of such a remote, you will need either the device itself (TV or console) or specialized software.

One effective way to do this is to use Bluetooth signal analysis applications like nRF Connect or Bluetooth Scanner, and install it on your smartphone, enable the scanning, and press the button on the remote, and if the remote is in pairing mode or actively transmitting, it can show up on the device list as MI Remote or with a similar ID.

If the remote is not detected by the scanners, the problem may be in the batteries or in the Bluetooth module itself. Try connecting the remote to another Android TV device. If it does not work there, there is a possible physical defect. For owners of the Mi Box and Mi TV Stick, there is an option to check through the settings menu, where the connection status is displayed.

• 🔍 Install a Bluetooth scanner app (e.g. nRF Connect).
• 📡 Start scanning devices in the application.
• 🔘 Press the buttons on the remote to activate the signal transmission.
• 📱 Look for a device with a name that contains"MI" or "Remote".

In some cases, the remote may be functional but out of sync with the console, which requires re-pairing, usually by pressing the Home and Back buttons (or other buttons specified in the manual) at the same time and holding the remote close to the receiver of the device.

Using a smartphone as an IR remote to check the receiver

If your remote is not working, it's not always his fault. It may be a faulty receiver on the TV. To rule out this possibility, you can try to control the TV with a smartphone if it has an integrated IR port. Many old and some modern models of Xiaomi, Redmi and Poco have such a module.

Use the standard MI Remote app that's pre-installed on Xiaomi smartphones. Create a new remote, select the "TV" device type and the "Xiaomi" brand (or your TV brand). Test the buttons offered by the app. If the TV responds to commands from a smartphone, then its IR receiver is working, and the problem lies in your physical remote.

This technique also helps us understand whether the TV is operating in command mode at all, and if neither the home remote nor the smartphone is controlling the TV, the IR receiver on the TV itself may have been damaged, requiring repair.

Diagnostics via ADB and Network (for advanced users)

For owners of Mi Box, Mi TV Stick and Android TVs, there is a powerful diagnostic tool – ADB (Android Debug Bridge) debugging – which allows you to check the input from the remote programmatically, obtaining accurate button codes or tracking the status of the connection.

To use this method, you need to include "Developer Mode" and "Debugging by" USB" in the settings of the TV (Settings section) → About the device → Build - press 7 times. Then connect your phone and TV to the same Wi-Fi network. ADB Keyboard or terminal on Android, you can send commands and check the system response.

adb connect 192.168.1.XX:5555


adb shell input keyevent KEYCODE_HOME

When you execute input keyevent, you emulate the push of a button. If the TV responds to a command from your phone, the input system is good. If you press buttons on the physical remote, and no events appear in logcat logs, that indicates a problem with the remote module.

💡

Use the Android app ADB Keyboard to turn your phone into a full-fledged keyboard and remote to control Android TV over the network.This is a great way to check if your TV interface is working if your native remote is broken.

This is especially useful when the remote is intermittently running, and by logging input events, you can see if the signals are coming in during "failures," which helps to distinguish software lag from physical contact failures.

Resetting and reconnection: software solutions

Before you finally recognize the remote is faulty, you should rule out software failures. Often the problem is solved by simply reconnecting or resetting the Bluetooth module settings. For IR remotes, the effective method is to remove the batteries for a long time.

For Xiaomi Bluetooth remotes, there is a forced pairing procedure, usually done by simultaneously pressing the Home and Back buttons (or Menu and Back, depending on the model) 10-15 cm from the receiver, and the indicator on the remote (if any) should start flashing, signaling the search mode.

If the software reset didn't work, check the contacts in the battery compartment. Oxidation or loosening of springs is a common cause of unstable operation. Bend the springs carefully or wipe the contacts with alcohol. Also make sure that the battery polarity is correctly observed.

⚠️ Warning: When cleaning contacts inside the remote, use a minimum amount of alcohol or isopropyl cleaner.

Frequent Questions and Answers (FAQ)