Modern smart TVs require regular software maintenance for stable operation of applications and elimination of vulnerabilities. Owners of equipment DEXP often face the need to upgrade the operating system version Android TV or install a new security patch. This allows you to improve the performance of the interface, expand compatibility with new streaming services and fix previously discovered bugs.
The process of updating the firmware on TVs of a given brand can occur in several ways, depending on the specific model and type of operating system installed. Some devices support automatic downloading over the Internet, while others require manual user intervention using an external storage device. It is important to understand the difference between updating system applications and completely flashing the device, since these processes require a different approach to preparation.
We will analyze in detail all the available methods for installing new software, ranging from simple actions through the settings menu to complex reset and installation procedures via USB. You will learn how to check the current version of the system, where to look for official files, and what to do if the automatic search does not find updates. A competent approach to the procedure guarantees the safety of your data and the operability of the TV after completion of all operations.
Checking the current version and preparing for the procedure
Before starting any manipulations with the system software, you must accurately identify the model of your device and the current installed version Android. This information is critical because the firmware from one DEXP model will not work with another, even if they look visually the same. Incorrectly selected software can lead to unstable operation or complete inoperability of the TV.
To obtain information about the system, go to the main menu and select the settings section. Navigation may vary depending on the shell version, but the general path usually looks like this: Settings → About TV → System information. Here you will see the build number, kernel version and date of the last update. Write down this data or take a screenshot to compare it with the files on the official website.
⚠️ Attention: Make sure your TV is connected to a stable Wi-Fi or Ethernet network before checking for updates. Interrupting the connection while downloading data may result in damage to system files.
Interface Android TV there may be slight differences in the location of menu items on different models. If you don't find the section you need right away, try using the settings search or refer to the user manual included in the kit. It is also worth freeing up some of the device's internal memory by deleting unused applications so that the system can correctly unpack the archive with the update.
Before starting the update, take a photo of the current settings for brightness, sound and application location on the main screen. After a reset or update, some parameters may return to factory settings.
Automatic update via the Internet (OTA)
The easiest and safest way to get a new version of the system is to use the function OTA (Over-The-Air). This method involves downloading updates directly from the manufacturer's servers or the Google platform without the participation of a computer. The system independently checks for the presence of a new version, downloads it and prompts the user to install it.
To start the process, open the settings menu and find the item responsible for the system. In most cases, the path looks like this: Settings → Device → About the system → System update. By clicking on the "Check update" button, the TV will contact the server. If a new version is available, a notification will appear on the screen describing the changes and an “Install” button.
During the installation process, the screen may go dark or the TV may reboot several times. This is normal behavior and indicates that new data is being written to flash memory. Do not try to turn off the device with the remote control or from the socket at this moment, as interrupting the recording may lead to a critical loading error.
- 📡 Make sure that the Internet connection speed is sufficient to download large files (recommended from 10 Mbps).
- 🔋 If the TV is connected through a surge protector, make sure that it is securely grounded and not will turn off during power surges.
- 🕒 Allow enough time: the download and installation process can take from 15 to 40 minutes depending on the size of the update.
Sometimes automatic updates do not work immediately after a new version is released. This is due to the fact that the manufacturer releases software in waves for different batches of devices in order to avoid massive load on the servers. If the check does not find anything new, try repeating the procedure in a few days.
Manual installation of firmware from a USB drive
If the automatic search does not produce results or your TV does not have access to the network, manual installation is the only option. This method requires more careful preparation and a computer with Internet access to download the firmware file. You will need a USB drive (flash drive) with a capacity of at least 4 GB, formatted in a file system FAT32.
The firmware file must be downloaded exclusively from the manufacturer’s official website or a reliable source specified in the documentation for your model. The archive usually contains a file with the extension .zip or .bin. There is no need to unpack the archive unless otherwise indicated in the instructions; often you just need to copy the file to the root directory of the flash drive.
File name: DEXP_TV_Update_v2.4.bin
Path on the flash drive: / (root folder)
After copying the file, remove the flash drive safely through your computer and insert it into the USB port TV. Next, in the settings menu, select "Backup and reset" or "Software update from USB". The system should detect the file and prompt you to begin installation. In some models, the process begins automatically immediately after the drive is detected.
What to do if the TV does not see the flash drive?
Try using a different USB port, preferably version 2.0 (black), not 3.0 (blue). Also make sure that the flash drive is formatted in FAT32, since the NTFS file system may not be supported by the bootloader.
⚠️ Attention: Interfaces and menu item names may differ depending on the model year and Android version. Always check the latest documentation for your specific DEXP series.
The manual installation process is similar to the automatic one: the device will reboot, a logo and a progress bar will appear. Wait until the procedure is completed and the TV automatically turns on. Only after this can you remove the USB drive.
Compatibility table and types of updates
Understanding the types of updates helps to correctly assess the risks and expected results. Not every update changes the Android version; some only affect drivers or system utilities. Below is a table to help categorize the types of updates you may encounter.
| Update Type | Description | Risk of Data Loss | File Size |
|---|---|---|---|
| Minor Patch | Fixing security errors and minor bugs | No | 50-200 MB |
| Updating drivers | Improving the performance of Wi-Fi, Bluetooth or video decoder | No | 100-300 MB |
| Major Android update | Moving to a new OS version (for example, from 9 to 10) | Can reset settings | 1-2 GB |
| Recovery firmware | Complete system replacement in case of critical failures | Complete data deletion | 1-3 GB |
When installing major updates, the system may offer Perform a factory reset to ensure the new components work correctly. This is standard practice to avoid conflicts between old configuration files and new app code. Always make backup copies of important data before such procedures.
Use the table to assess the need for an update: if your TV works stably, installing a major version of Android may not give a noticeable increase in performance, but will change the interface.
Eliminating errors and problems when updating
Even if you follow all the instructions, unexpected problems may arise situations. One of the common problems is the message "Could not check for updates" or the process getting stuck at a certain percentage. In such cases, do not panic, since most errors can be resolved with simple steps.
First of all, try to perform a full reboot cycle of the TV. Don’t just turn it off with the remote control, but de-energize the device by unplugging the plug from the socket for 1-2 minutes. This will clear the RAM and reset temporary cache files that could cause the update module to fail.
If the problem occurs when installing from a flash drive, check the integrity of the downloaded file. The download may have been interrupted and the archive may be corrupted. Try downloading the firmware again using a different browser or computer. It’s also worth checking the USB drive itself for bad sectors.
- 💡 Try disconnecting all unnecessary devices from the TV’s USB ports, leaving only the flash drive with the firmware.
- 🔄 Reset the network settings and reconnect to Wi-Fi if the update is via the Internet.
- 🛠 In extreme cases, you may need to enter the mode Recovery for forced installation.
To enter recovery mode, you usually need to hold down a certain combination of buttons on the remote control or the TV body when turning on. For example, holding down the power button or combination Volume + and Power. In this menu, you can select the item Wipe data/factory reset before trying to install again, but this will delete all user data.
☑️ Diagnosing problems
Actions after a successful update systems
After the TV has loaded with the new version of the software, it is recommended to perform a number of actions to optimize its operation. The new system may require you to reconfigure some settings that were reset during the update process. Take time to check the quality of the image and sound.
Go to the application store Google Play and check for updates for installed apps. Often, after changing the Android version, old versions of applications may not work correctly and need to be updated. It is also worth re-creating shortcuts on the home screen if they have disappeared or moved.
Clearing the system application cache is a useful procedure after a global update. This will help free up space and remove remnants of old configuration files. Go to Settings → Applications → All applications, select system services and clear their cache.
⚠️ Attention: If after the update the TV starts to work slower, give it a couple of hours for background file indexing and database optimization. Do not rush to reset the settings right away.
Check the operation of peripheral devices: connect a game console, sound system or computer. Make sure that new drivers handle different signal formats correctly. If you notice artifacts or problems with sound, you may need to fine-tune the output settings in the picture and sound menu.
Why did the sound disappear after the update?
Often, the audio format settings are reset when updating. Go to the sound settings and try switching the output mode from "Auto" to "PCM" or "Bitstream" to check if the sound is restored.
Frequently asked questions (FAQ)
Is it possible to roll back the Android version on a DEXP TV?
Officially, the manufacturer does not provides tools for system rollback (downgrade). Returning to the old version is possible only by experienced users through Recovery mode using special factory firmware, which carries a high risk of turning the TV into a “brick.”
Will my Google account and installed applications be deleted during the update?
With a regular update OTA or via USB, all data, accounts and applications are saved. The reset occurs only when you select the "Reset to factory settings" item or when installing some major versions, which the system will warn you about in advance.
Where can I find the official firmware for my DEXP model?
Firmware files are posted on the official DEXP website in the "Support" or "Service" section. Information can also be found on specialized forums where users share memory dumps, but such files should be downloaded with caution.
What to do if the TV turns off during the update?
Try to turn it on again. If it is stuck on the logo, you will need to enter Recovery mode and perform a factory reset (Wipe Data). If the TV does not show signs of life, diagnostics are required at a service center to reprogram the memory chip.
Does the update affect the device warranty?
Installing official updates distributed by the manufacturer does not void the warranty. However, the use of third-party, modified firmware or attempts to obtain root access may become grounds for denial of warranty service.