The situation when the physical remote control from the DEXP TV suddenly stops responding or is lost, is familiar to many users. Xiaomi smartphone owners are in a winning position, as most of the current models of the Chinese brand are equipped with an integrated infrared port. This hardware feature turns the phone into a full-fledged universal remote that can control almost any household appliances. You do not need to search for an original accessory or wait for delivery from the marketplace if you have a modern gadget at hand.
However, the tuning process can raise questions for those who are first exposed to IR technology. MIUI It offers its own management tool, but there are third-party alternatives, and the key here is to properly define your TV model, because the brand is a good model. DEXP frequently OEM-Understanding this nuance makes it much easier to find the right code in the application database.
In this guide, we will take a look at all the interfaces available, from standard system tools to specialized software. You will learn how to circumvent the limitations if the automatic search failed, and what settings you need to check first. Using a smartphone as a controller opens up access to additional features that are not available on standard buttons.
Hardware compatibility and the presence of an IR port
The first and most important step is to test the technical capability of your smartphone. Not all Xiaomi, Redmi or POCO devices are equipped with an infrared transmitter. This feature is usually present in mid-range and flagship models, as well as in many budget Note series. To determine exactly what you need to look at the upper end of the case: there must be a small black window, often hidden under the protective glass next to the noise reduction microphone.
If the visual inspection did not give a clear answer, you can use the technical characteristics of the device. the absence of an infrared port does not mean complete inability to control, but will require the use of external adapters or Wi-Fi connection, which only works with Smart TVs. In the case of conventional DEXP TVs without intelligent functions, the presence of an infrared colorer becomes a critical condition for replacing the remote.
⚠️ Note: Do not try to use an infrared port if your phone does not support this function software. Installing third-party apps from the store will not add hardware ability to emit infrared signal if the transmitter is not physically available.
For owners of devices without built-in module, there are special accessories that are connected via a USB Type-C or 3.5 mm Jack connector. These gadgets emulate the work of a regular transmitter and allow you to use the standard Mi Remote application. However, for most users it is more convenient to use native functionality if it is provided by the design of the smartphone.
⚠️ Warning: External IR adapters can consume battery power and sometimes require additional drivers or applications from the adapter manufacturer, making the setup process more difficult.
Configure with the Mi Remote app
The Mi Remote app is the most stable and optimized solution for the Xiaomi ecosystem. It's pre-installed, but if you delete it, you can find it in the GetApps store or Google Play. Launch the program and click the add button. Select "TV" in the category list, and then type DEXP in the brand search.
If the DEXP brand is not listed (which happens due to regional database features), don’t panic. As mentioned earlier, this brand often uses off-the-shelf solutions from large factories. Try to pick manufacturers whose logos are often found on matrices or boards: Hisense, Changhong, Haier or TCL. The process involves pairing a button on the screen and checking the response of the TV.
☑️ Checking the remote settings
The system will offer several encoding options. You'll need to test them sequentially by pressing the virtual power button. If the TV is turned off or the volume control is turned on, then the code is correctly selected. After a successful test, remember to save the profile by giving it an understandable name, for example, "DEXP Guestroom", so as not to get confused with the devices.
Alternative management applications
When a regular Mi Remote app can't find the right code for your DEXP, third-party development comes to the rescue. One of the most popular solutions is Zaza Remote. This app has a more extensive code base and allows you to deep-tube buttons. The interface here may seem more complicated, but the functionality is worth it.
Another powerful tool is Peel Smart Remote or Universal TV Remote, which often uses crowdsourcing databases where users add working configurations to. If your DEXP TV is a rare or new model, chances are someone has already solved the compatibility problem and uploaded a profile to the network. Installing such applications requires permission to access the IR port, which must be confirmed in the system window.
Why do some applications require access to geolocation?
When using third-party software, it is important to keep an eye on ads that are often found in free versions. It is also worth noting that some applications may be less optimized for the MIUI shell, which leads to signal delays.
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If the app doesn’t have a DEXP brand, try searching by the model code listed on the sticker on the back of the TV, sometimes it helps find a compatible profile.
Use of Wi-Fi and Smart TV Functions
Modern DEXP TVs often run on Android TV or a modification of the operating system, so you don't have to rely on an infrared port that requires line of sight, you can use a Wi-Fi connection to control it, which allows the phone to function as a full-fledged touchpad with text input, and for that, both devices must be connected to the same network.
This is a great way to do this, with Google Home or the official Android TV Remote Control app. Once installed, the program will automatically find the TV on the local network. The TV screen may have a pairing request that needs to be confirmed, which is especially convenient for navigating menus and entering search queries on YouTube or Netflix.
The advantage of Wi-Fi control is that you don't have to point your phone to the TV. The signal goes through the router, so you can control playback even from another room, if the walls aren't too thick. However, if the TV is software-activated (in sleep mode), waking it up via Wi-Fi may not be possible without IR insurance.
| Connection method | Equipment required | Advantages | Deficiencies |
|---|---|---|---|
| Infrared (IR) | IR port on the phone | It works without the Internet, high compatibility | Direct visibility, limited radius required |
| Wi-Fi (Smart TV) | Router, Smart TV | No need for direct visibility, text entry | It will not turn off the TV, network delays |
| External adapter | USB-IC transmitter | For phones without an IR port | It takes up the connector, requires food. |
Solving Code Compatibility Problems
A common problem when setting up is when the DEXP TV reacts to some buttons but ignores others, or works in reverse mode (for example, the switch off button turns on the device). This indicates partial code compatibility. In the Mi Remote application, you can go to edit the remote and reassign the button functions manually.
If neither code fits, you can try the blind brute force method in training mode if you have at least one working remote (even from another technique). The application can copy the signal frequency. It is also worth checking whether the Android system blocks the operation of the IR port in the background. In the battery settings for the remote application, you should prioritize "No restrictions".
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Partial remote operation is often solved by manually reconfiguring buttons in the application editor or updating the code database.
In some cases, the problem lies in the receiver itself, and if the phone's infrared port is working but the DEXP is not responding, try to reduce the distance to 1-2 meters and remove obstacles. Infrared radiation does not pass through plastic panels and thick glass.