Unlocking the remote Xiaomi Mi Box S: from reset to firmware

The Xiaomi Mi Box S remote control can suddenly stop responding to presses, flash a red LED or not turn on at all, most often due to software failures after updating the firmware, discharging batteries or accidentally pressing button combinations that activate “child mode”. In 80% of cases, the problem can be solved without going to the service center – just reset or reconnect the remote.

In this article, we will discuss all the working ways to unlock, including hidden features of the Mi Box S, which are not described in the official documentation, you will learn how to distinguish hardware from software failure, what combinations of buttons reset the remote settings, and what to do if the connection to the console is lost, and we will analyze the typical user errors that cause the remote to fail, and give recommendations for prevention.

If your remote flashes red 3 times in a row when you press any button, this is a sure sign of activation of the lock mode. In most cases, it is enough to re-assign the link, but sometimes you need a complete reset of the console. Read on to choose the best method for your situation.

The reasons for blocking the remote Mi Box S: why it stopped working

Before you start unlocking, it's important to understand what exactly caused the malfunction. - Xiaomi Mi Box S remotes (models) MDZ-22-AB and MDZ-24-AA) Most often blocked for the following reasons:

• 🔋 Battery discharge – even if the indicator does not flash, a weak charge can cause synchronization failures. The remote can respond to delayed presses or ignore commands altogether.
• 👶 Activation of Child Mode – Accidental retention of Menu buttons + Back for 5 seconds includes a lock that disables most functions.
• 🔄 Failure after firmware update - if the console was updated through OTA or manually, the remote may lose its binding to the device.
• 📶 Interference from other IR devices – if other remotes are working nearby (such as an air conditioner or TV), the signals may conflict.
• 🔌 Hardware malfunction - falling, getting moisture or wearing of the contacts of the buttons. In this case, unlocking the software methods will not help.

The reason can be determined by the behavior of the LED on the remote:

⚠️ Note: If the Mi Box S remote does not show signs of life at all (the LED does not burn, does not respond to charging), the problem may be damage to the board.

Method 1: Reboot the console and reset the remote

The easiest and safest method is to reboot the Mi Box S and re-tether the remote, which helps in 60% of cases when the lock is caused by a temporary synchronization failure.

Follow the following steps:

1. Turn off the power supply (remove the cable from the outlet).
2. Wait 30 seconds – this is enough time for the capacitors to discharge and the cache to clear.
3. Insert the batteries into the remote (if they were removed) or replace them with new ones.
4. Connect the console to the power and wait for the full load (the main screen will appear).
5. Press and hold the Menu buttons. + Back on the remote for 10 seconds until the LED starts flashing green.
6. Release the buttons – the remote must automatically connect to the console.

If the remote is running after these actions, but some buttons do not respond (for example, Google Assistant or Netflix), calibrate:

1. Go to Settings. → Input devices → DU remote.
2. Select the button calibration and follow the instructions on the screen.

Remove batteries from the remote|Disconnect the Mi Box S from the network for 30 seconds|Make sure the device is connected to HDMI|Use original batteries (not batteries)

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⚠️ Warning: If the remote still doesn't work after the reboot, but the LED flashes green when pressed, the problem may be in conflict with other Bluetooth devices. Disconnect all wireless gadgets (keyboards, gamepads) from the console and repeat the binding.

Method 2: Reset the child mode (if the remote blinks 3 times)

Triple flashing of a red LED when you press any button means that Parental Control is activated, which blocks most of the remote's functions so that children can't accidentally change settings, and you can unlock it in two ways:

Method 1: Button combination

Follow the following sequence:

1. Hold the Menu button (three horizontal lines) for 5 seconds until the LED flashes green.
2. Without letting go of Menu, press the Back button 3 times in a row.
3. Release both buttons – the remote must unlock (the LED will go out or light up green).

If the combination didn’t work the first time, repeat it by holding the buttons for longer (up to 7 seconds).

Method 2: Reset via the console menu

If the remote is partially responsive to pressing (for example, only the button works) OK), reset through the interface:

1. Go to Settings. → System system → Child control.
2. Enter the standard. PIN-code: 0000 or 1234 (unless you have changed it).
3. Turn off the option of locking the remote control.

After you turn off the child mode, check the remote. If the buttons still don't respond, move to the next method.

Method 3: Forced re-binding of the remote via Bluetooth

If the Mi Box S remote has lost communication with the console (for example, after an update or reset), it must be re-tied via Bluetooth, which works even if the remote does not respond to pressing, but its LED flashes.

Follow the following steps:

1. Connect to the console mouse or keyboard through USB Bluetooth (if the remote does not work at all).
2. Go to Settings. → Input devices → Add the device.
3. Select Xiaomi Remote from the list of available devices.
4. Press and hold the Menu buttons. + Home on the remote for 5 seconds until the LED starts flashing blue quickly.
5. On the console screen, a message will appear Remote connected.

If the remote doesn’t appear in the list of devices, try:

• 🔄 Reload the console and repeat the search.
• 📱 Make sure the distance between the remote and the Mi Box S is less than 1 meter.
• 🔋 Replace batteries with new ones (even if they seem to work).

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If you don't have a mouse or keyboard on hand, you can use the Mi Remote app on your smartphone (available for Android and iOS), which will temporarily replace the remote and allow you to re-tether.

⚠️ Note: When forced binding via Bluetooth, some buttons (such as Netflix or Prime Video) may not work. In this case, calibrate the remote in the Settings menu. → Input devices.

Method 4: Reset the console to factory settings (if nothing helps)

If all previous methods failed, the last option is a full reset of the Mi Box S. This will delete all data, including the installed applications and settings, but return the remote to working condition.

There are two ways to perform the reset:

Method 1: Menu (if the remote is partially working)

1. Go to Settings → Device → Reset settings.
2. Choose to erase all data and confirm the action.
3. Wait for the reboot (it will take 2-3 minutes).
4. After turning on, perform the initial setting and re-attach the remote.

Method 2: Recovery Mode (if the remote doesn't work at all)

This method requires physical access to the prefix:

1. Turn off the Mi Box S from power.
2. Press the button. OK on the remote (or on the console case, if there is a mechanical button).
3. Don't let go. OK, Connect the console to the network.
4. Hold the button until the Recovery Mode menu appears (about 10-15 seconds).
5. With volume buttons (Vol+/Vol-) Choose the Wipe data/factory reset and confirm the reset with a button OK.
6. Once completed, select Reboot system now.

After resetting, the console will return to the factory settings, and the remote must automatically connect. If this does not happen, perform the binding manually (see Method 3).

Rebooting the console|Resetting the child regime|Re-teaming via Bluetooth|Full reset to factory settings|Nothing helped.

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⚠️ Note: After resetting the console, you may need to re-authorize in Google, Netflix and other applications. Prepare the username and password from the Xiaomi account in advance, if it was linked to it.

Method 5: Firming the remote through ADB (for advanced users)

If the Mi Box S is locked permanently (for example, after each update), the problem may be in its firmware. ADB (Android Debug Bridge is only suitable for advanced users, as it requires a command line.

You'll need firmware.

• 🖥️ Computer with drivers installed ADB and Fastboot.
• 🔌 USB-cable to connect Mi Box S to PC.
• 📁 Firmware file remote (can be downloaded on the forums) XDA Developers or 4PDA).

Instructions:

1. Turn on the debugging on the console. USB: Go to Settings. → On the console. Press 7 times on the build number to activate the developer mode. Go back to Settings. → For developers and enable debugging by USB.

Mi Box S

CMD

adb devices


adb shell am start -n com.android.tv.settings/.device.BluetoothRemoteControlSettings

Update the remote firmware

After firmware, the remote will be reset to the factory settings, and it must be re-tied to the console.

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Firmware through ADB — This is an extreme method that should only be used if other methods have not worked. Wrong commands can lead to a complete failure of the console!

What to do if the remote is physically broken

If none of these things worked, and the remote doesn't show signs of life (LED doesn't burn, doesn't respond to charging), it's probably a hardware malfunction.

• 🔍 Check the contacts of the batteries - often they oxidize or bend. Clean them carefully with a blower or alcohol.
• 🛠️ Disassemble the remote control (if it is not warranty) and check the integrity of the tracks on the board.
• 📱 Use alternatives: Mi Remote app on your smartphone. USB-Keyboard or mouse. Universal IR remote (for example, Xiaomi Mi) TV Remote).
• 🛒 Buy a new remote – the original MDZ-22-AB Compatible (for example, WeChip) G20).

If you're going to disassemble the remote, be careful, there may be fragile elements inside.

1. Carefully tuck the back cover with a thin screwdriver (start with the corners).
2. Remove the fee and check it for damage.
3. Clean the button contacts with alcohol and make sure they don’t stick.
4. Put the remote in reverse order.

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If you buy a new remote, pay attention to its version. for the Mi Box S (model) MDZ-22-AB) Only a remote with the same labeling will work, and analogues from other models (for example, the Mi Box 4) may not work.

How to prevent the locking of the remote in the future

To avoid repeated problems with the Xiaomi Mi Box S remote, follow these guidelines:

• 🔋 Use high-quality batteries, preferably alkaline batteries (like Duracell or Energizer) and batteries can cause failures due to unstable voltages.
• 📵 Avoid pressing button combinations – especially Menu + Back, which activate the child mode.
• 🔄 Update the console firmware - in new versions, bugs related to the remote work are corrected.
• 📱 Set up a backup remote – for example, the Mi Remote app on your smartphone.
• 🧹 Clean contacts regularly – once every 3-6 months, wipe the contacts of batteries and buttons with alcohol.

It is also useful to disable automatic firmware updates if after updates the remote starts to glitches:

1. Go to Settings → About the console → System update.
2. Turn off the automatic update option.
3. Check Notify of new versions to manually control the process.

If you frequently encounter remote locking, consider buying a protective case – it will prevent accidental button presses during storage.

FAQ: Frequent questions about unlocking the Mi Box S remote