You picked up the remote from Xiaomi Mi TV 4S, You click on the on button, and the TV doesn't respond, or worse, some buttons go off over and over again, and others get ignored, a situation that many Xiaomi smart TV owners know, especially if the device is already there. 2-3 The causes range from dead batteries to software failures in firmware.
In this article, we will discuss all possible reasons why the remote control Mi TV 4S (including models 4S 32", 4S 43", 4S 50", 4S 55" and 4S 65") You can stop working, and you can give you step-by-step instructions to fix them. You don't have to go to the service center, most of the problems are solved by yourself. 10-30 And if the remote is physically broken, we'll tell you how to operate the TV without it or where to buy a replacement.
So let's start with the simplest and gradually move on to more sophisticated methods, and focus on the section on resetting the remote via the engineering menu, which works even when the buttons don't respond at all.
1.Battery check: why the remote might not work because of them
Letβs start with the basic: 90% of the problems with the remotes Xiaomi Mi TV 4S Even if the batteries seem to be "alive," they may not be giving enough voltage to keep the infrared in stable operation (IR) or Bluetooth transmitter.
Here's what we need to do:
- π Remove the batteries and inspect the contacts in the remote compartment. Oxidation or contamination can interrupt the circuit.
- π Change the batteries. Sometimes one of them will run out faster, and this trick helps you temporarily restore work.
- π Check the battery type. TV 4S demand AAA (pinkie) batteries with voltage 1.5V. Batteries. 1.2V may not be the right fit!
- π Use new alkaline batteries (like Duracell or Energizer) cheap salt batteries quickly run out, especially if the remote was lying unused.
If the remote is running after replacing the batteries, but after a couple of days it stopped reacting again, the problem may be increased power consumption due to a faulty capacitor on the board, in which case the remote will need repair or replacement.
β οΈ Note: Do not use rechargeable batteries with voltage below 1.5V. Xiaomi remotes are sensitive to voltage, and even a slight deviation can lead to malfunctions. IR-transmitter.
2. Diagnostics of remote type: IR Bluetooth?
Xiaomi Mi TVs TV 4S are equipped with two types of remotes:
- πΆ Infrared (IR) β Classic remote with IR transmitter (works only on line of sight).
- π΅ Bluetooth remote β modern version with support for Bluetooth 4.0 (works through walls, does not require directional direction).
Determining the type of your remote is simple:
- Turn the remote over and look at the top of it. If there's a transparent window, it's this. IR-version.
- If there is no window, but there is a Mi or Google Assistant button, it is a Bluetooth model.
- Try to control the TV without pointing the remote control at it. If it works, it's Bluetooth.
From the type of remote control depends on further actions:
| Type of remote | What to do if it doesn't work | Additional symptoms |
|---|---|---|
| IR (infrared) | Check the IR transmitter (see Section 3), replace the batteries, clean the lens | Only works when direct guidance, weak signal at a distance |
| Bluetooth | Reset pairing, update TV firmware, check Bluetooth antenna | Lags when pressed, periodic shutdowns, voice assistant does not work |
| Universal (IR + Bluetooth) | Check both modules, reset the remote settings through the engineering menu | Some buttons work, some don't; the remote is switched on, then not |
If you have a Bluetooth remote and it stopped working after updating the TV firmware, the problem may be resetting the paired devices, in which case re-pairing will help (see section 5).
3. Cleaning of the IR transmitter and signal verification
If you have an infrared remote, and the battery replacement didn't work, it could be a contaminated IR transmitter or a faulty lens, and over time, dust, fat from your fingers, or even tobacco smoke can block the signal.
How to clean the transmitter:
Remove the batteries and inspect the transmitter window (usually located at the top of the remote)
Wipe the window with a cotton swab soaked in alcohol (do not use acetone!)
Blow the hole with compressed air (you can use a canister to clean the keyboard)
Check the integrity of the lens β if it is cracked, the remote must be replaced-->
To make sure that the remote is emitting a signal at all, use a simple test:
- Turn on the camera on your smartphone and point the remote control at it (as if you are taking a photo of a transmitter).
- Press any button. If the remote works, you'll see a flashing purple light in the camera's lens.
- If there is no light, the remote is faulty (either the problem is in the board or in the buttons).
β οΈ Note: Some smartphones (e.g. iPhone or Xiaomi with a IR-filter) may not show an IR signal, in which case use another camera or DVR.
If the remote does not give a signal, but the batteries are new, the problem may be:
- π οΈ Faulty button (contacts oxidized or soldered off).
- π Chain break on the board of the remote (often after a fall).
- π‘ Burned IR emitter (replacement required).
In such cases, it is easier to buy a new remote (original or compatible) - repairs will cost more. But before you do, try resetting the remote settings (section 6).
4. Resetting the pairing of the Bluetooth remote with the TV
If you have a Bluetooth remote and it stopped working after updating the firmware or resetting the TV settings, it's likely that you've reset the paired devices, and then you need to make friends with the TV again.
Instructions for re-connection:
- Turn on the TV with a button on the case (if the remote does not work at all).
- Go to Settings β Devices β Bluetooth.
- Click Add Device and select Remote (or Mi Remote).
- Press the Menu button on the remote. + OK simultaneously 5-10 seconds until the indicator starts flashing.
- Wait for the pairing to be completed (a notification will appear on the TV screen).
If the console is not located or the pairing is broken:
- π Restart the TV (turn off the network for 30 seconds).
- π± Update your TV firmware to the latest version (see Section 7).
- π Check the TVβs Bluetooth module β if it doesnβt turn on, the problem could be in the antenna or motherboard.
π‘
If the Bluetooth remote is unstable (lags, communication is lost), try to disable other Bluetooth devices within a radius of 5 meters - they can cause interference.
5. Software glitches: TV reboot and reset
Sometimes the remote will stop working because of software errors in the firmware of the TV, which can happen after:
- π Updates (especially if the process is interrupted).
- π₯ Install third-party applications (such as Kodi or IPTV-player).
- β‘ Power surge or improper shutdown.
In such cases, a hard reboot or resetting of settings helps:
Method 1: Reboot through a button on the body
- Turn off the TV from the socket on 1-2 minute.
- Press and hold the power button on the TV body 15-20 seconds.
- Connect the power and turn on the TV button on the case.
Method 2: Reset to factory settings (if the remote is partially working)
- Go to Settings β About TV β Reset settings.
- Select Reset all settings (you will need to enter) PIN, default 0000 or 1234).
- After resetting, reset the Wi-Fi and pair the remote.
β οΈ Warning: Resetting to factory settings will remove all installed apps, accounts and saved settings (brightness, sound, Wi-Fi networks.
If the TV does not respond to the remote or to the buttons on the body, this may indicate:
- π Firmware freeze (required to be reflashed through) USB).
- π οΈ Failure of the motherboard (repair required).
- β‘ Power supply problems (TV doesn't get enough power to run).
What to do if the TV is not turned on at all?
6 Reset the remote settings through the engineering menu
This method works even if the remote buttons do not respond at all. TV 4S there is a hidden engineering menu through which you can reset the remote settings or forcibly reconnect it.
Resetting instructions:
- Turn on the TV with a button on the case (if it is turned off).
- On the original Xiaomi remote, press the buttons at the same time: Menu + Back up (β) + Loudness up (β) Hold on. 10-15 A few seconds before the menu appears.
- In the engineering menu, select Remote Control (or Pilot Settings).
- Press Reset Remote or Pairing (depending on the firmware version).
- Confirm the reset and wait for the TV to restart.
If the engineering menu does not open:
- π Try another combination: Menu + OK + Loudness down (β).
- π Make sure you use the original remote (universal remotes do not open the engineering menu).
- π Update the TV firmware (outdated versions may not support this method).
After resetting, the remote must re-couple with the TV. If this does not happen, try updating the firmware (section 7).
π‘
The engineering menu is the last chance to reanimate the remote without repair, and if it doesn't work, the problem is probably the hardware (the remote board or the Bluetooth TV module).
7. Update of TV firmware to restore the remote
If the remote stopped working after updating the firmware (or, conversely, has not been updated for a long time), the problem may be in software incompatibility. TV 4S 1.4.65 and below were Bluetooth-connected bugs.
How to update firmware:
Method 1: Internet (if the remote is partially working)
- Go to Settings β About TV β System Update.
- Click Check for updates.
- If a new version is available, download it and install it.
Method 2: Through USB (if the remote doesn't work at all)
- Download the latest firmware for your model from the official Xiaomi Support website (select the Mi section). TV 4S and your screen size).
- Unpack the archive and copy the update.zip file to the flash drive (FAT32 format).
- Put the flash drive in. USB-television-port.
- Turn on the TV button on the case, wait for the automatic detection of the update.
- Follow the instructions on the screen (if the update does not start automatically, go to Settings). β Update β Update through USB).
Important nuances:
- π Do not turn off the TV during an update (this may cause a βbricking").
- π₯ Use only official firmware from Xiaomi. the assembly side may contain viruses.
- π If after updating the remote still does not work β do reset settings (section 5).
If the TV does not see the flash drive or does not update through USB:
- π Check the format of the flash drive (should be) FAT32, not NTFS exFAT).
- π Rename the firmware file to update.zip (spaceless).
- π Try another one. USB-port TV 4S It is usually only the port that works. USB 2.0).
8. Alternative ways to control the TV without a remote
If the remote is not working at all, and the repair or replacement is delayed, you can control the TV in alternative ways.
1. buttons on the TV body
On the back or side panel of the Mi TV 4S There are physical buttons:
- π Power - on/off switching.
- πΊ Input β Switching signal sources (HDMI, AV).
- βοΈ Volume Β± β volume control.
- β‘οΈβ¬ οΈ Channel Β± β switchover.
With their help, you can turn on the TV and open the settings for reset or update.
2. Mi Remote app (for smartphone)
Download the official Mi Remote app (available for Android and iOS):
- Connect your phone and TV to the same Wi-Fi network.
- Open the app, select Mi TV.
- Follow the instructions on the interface screen.
The application supports the full functionality of the original remote, including voice search.
3. Universal remote (e.g. from air conditioning)
Many universal remotes (e.g. Xiaomi Mi Universal Remote or BroadLink) RM4 Pro) can be programmed to Mi TV 4S:
- Download the application to configure the universal remote.
- Choose the Xiaomi brand and the Mi model TV 4S.
- Conduct the button training procedure.
4. Management through HDMI-CEC
If the TV is connected to the console (Android) TV, Apple TV) game console (PS5, Xbox by HDMI, can be used HDMI-CEC:
- Turn it on. HDMI-CEC in the settings of the TV (Settings) β HDMI-CEC β On.).
- Now the console can control the main functions of the TV (on/off, volume, switching inputs).
5. Voice Assistant (Google Assistant / Alice)
If the TV is connected to the Internet, you can use voice commands:
- π€ Google Assistant: OK Google, turn on Mi TV".
- π£οΈ Alice (Yandex): Alice, turn on the TV HDMI 1".
To do this, you need to pre-configure integration in Google Home or Yandex applications.
If none of these methods work, you have to buy a new remote. TV 4S You can find it on AliExpress, Wildberries or Xiaomi's branded stores. Average price: 800-1500 β½.
π‘
When buying a new remote, check its compatibility with your Mi model. TV 4S. Like the remote from Mi. TV 4A not fit for 4S due to different communication protocols.