Modern Smart TV from the brand DEXPworking on an operating system Android TVare complex computing devices that, like smartphones or computers, periodically require a complete reboot. Unlike older kinescope models, here a simple cycle of turning on and off with the remote control often only puts the device into standby mode, without clearing the RAM or restarting system processes. This is why users often encounter a situation where the interface begins to respond with a delay, applications stop opening, and the Wi-Fi module loses connection with the router.
Correct reboot allows you to reset accumulated software errors, clear the system services cache and reinitialize all hardware modules. Equipment owners DEXP should understand the difference between a regular shutdown, a soft restart and a forced reset, since each of these methods is used depending on the degree of freeze of the device. Below we will analyze in detail all the available methods of resuscitating a TV, from soft methods to a complete reset.
Before taking radical measures, it is worth trying basic methods that are safe for all models, be it DEXP U40E8000 or newer series. Let's look at how to properly manage the power of your device.
Regular shutdown via remote control and menu
The most obvious, but often misunderstood method is using the power button on the remote control. On many Android models, briefly pressing the button puts the TV into Standby mode, where the screen goes dark but the processor continues to run in the background to perform update or voice control tasks. To perform a full DEXP with Android short button press Power puts the TV into a deep sleep mode (Standby), in which the screen goes blank, but the processor continues to work in the background to perform updating or voice control tasks. To complete a full rebootyou need to use the software menu.
To do this, press the menu button (often indicated as Home or the house icon) and go to the settings section. The path may vary depending on the shell version, but usually it looks like this: Settings → Device → About TV → Reboot. In some versions of Android TV, the reboot option is placed in a separate pop-up window when you hold down the power button on the remote control for a long time, however, this functionality is not implemented in all firmware DEXP.
If the menu opens, but there is no reboot button, you can use alternatively through energy settings. Go to Settings → Device preferences → Energy and select shutdown. The system may offer options: “Shut down only” or “Shut down and reboot.” Selecting the second option ensures that the operating system Android completely shuts down all processes and starts again.
- 🔌 Press and hold the power button on the remote for 5-10 seconds until a menu appears with the option “Reboot.”
- 📺 Go to the settings menu through the button
Settings(gear) and find the “Shutdown” item. - 🔄 Select “Reboot” instead of “Shutdown” so that the system performs a full Boot cycle.
- ⏳ Wait for the full turning off the indicator and the logo reappearing DEXP.
⚠️ Attention: If the TV turns off, but the indicator is red and does not respond to the remote control, the “Quick Start” function may be activated. Disable it in the power settings so that the remote control button performs a complete shutdown rather than putting it to sleep.
Forced reboot using case buttons
Situations when the software interface DEXP is completely blocked and stops responding to remote control commands occur quite often. This could be caused by a specific application crash, a clipboard overflow, or a system process error. In this case, the only way out is hard reset (Hard Reset) using physical buttons located on the TV itself.
On most models DEXP the power button is located on the bottom edge of the case, sometimes hidden behind the logo or located on the side together with volume rocker. To perform a forced reboot, you must press and hold the power button for 10-15 seconds. Unlike a short press, a long clamp ignores software commands from the operating system and sends a signal directly to the power controller, breaking the circuit.
There is also a button combination that works on some modifications of Android TV. If you have access to volume control buttons (Vol+ and Vol-) on the case, try pressing simultaneously Power and Volume down for 10 seconds. This action can initiate entry into Recovery mode, but more often it simply causes an emergency shutdown. After the screen goes dark, release the buttons, wait a couple of seconds and turn on the TV again.
☑️ Algorithm for actions when freezing
It is important not to confuse the forced reboot with a full reset to factory settings. Holding down the power button usually only turns off the power to the device, similar to unplugging the cord from the outlet, but makes it safer for the controller. However, if after turning on the system prompts you to select a language or set up Wi-Fi again, it means that user data has been reset, which requires re-configuration.
- 🔍 Find the physical power button on the TV body DEXP (often bottom center).
- ✋ Press and hold the button for 10-15 seconds until the screen turns off turns off.
- ⏱ Do not release the button immediately after the screen goes off, wait another 2-3 seconds.
- 🔌 Turn on the TV again with a short press or via the remote control.
Reboot through power outage
Pull out method sockets" is the most ancient and effective way to combat freezes in any electronics, including Smart TV based on Android. Inside the TV DEXP there are capacitors installed that retain a residual charge even after being disconnected from the network. This charge supports the operation of some memory circuits, where erroneous data can be stored, causing failures.
For this method to work as efficiently as possible, it is necessary to perform the so-called “residual current discharge”. After you have removed the plug from the socket, do not rush to plug it back in. Wait at least 2-3 minutes. During this time, the capacitors will be completely discharged, and the volatile memory (RAM) will be cleared of temporary files and cache that could cause process conflicts.
If your TV is connected through a surge protector or UPS, make sure that the power off button on the filter itself has also been toggled. In some cases, static electricity accumulated on external ports (HDMI, USB) may prevent correct startup. Before turning it on again, it is recommended to disconnect all external devices - flash drives, hard drives, game consoles, and connect only the antenna or Internet cable.
⚠️ Attention: Frequent and sudden disconnection of the TV DEXP from the network during operation (for example, while updating the system or recording a broadcast) can lead to damage to the file system and data loss. Use this method only if the interface is completely blocked.
Why does the TV heat up after turning off?
Modern Smart TVs often perform background tasks after the screen turns off: installing updates, indexing files, synchronizing data. This is why the case can remain warm and the indicator light. A complete blackout interrupts these processes.
Hard Reset
If a regular reboot does not help eliminate performance problems, constant application crashes or network errors, you may need a full reset (Factory Reset). This procedure returns the TV DEXP to the state it was in at the factory, completely erasing all user data, installed applications, Google accounts and channel settings.
You can perform a reset through the settings menu if the system is at least partially responsive. Follow the path: Settings → Device → Reset → Reset data. The system will warn you several times that all data will be destroyed. You will need to confirm the action, possibly by entering the PIN code (by default often 0000 or 1234if you have not changed it).
If the menu is not available, you can try entering Recovery Mode. To do this, with the TV turned off (unplugged from the network), hold down the power button on the case (sometimes together with the volume button, depending on the board model) and, while holding it, plug the TV into the outlet. If you get to the Recovery menu (black screen with text), select Wipe data/factory reset and confirm your choice. After the process is completed, select Reboot system now.
| Option | Soft reboot | Factory Reset | |||
|---|---|---|---|---|---|
| Save data | All data is saved | All data is deleted | |||
| Installed applications | Remains in place | Deleted completely | Wi-Fi and account settings | Save | Requires re-entry |
| Execution time | 1-2 minutes | 10-20 minutes (plus setting) | |||
| When apply | For minor lags | For critical system errors |
Before performing a hard reset, be sure to write down or take a photo of the list of important applications that you use in order to quickly restore them after cleaning.
Using ADB to reboot systems
For advanced users who prefer full control over their device, there is a method of rebooting through the debug bridge ADB (Android Debug Bridge). This method is especially useful when the interface “hangs” tightly, but the network connection (Wi-Fi or LAN) is still working, or if the TV is connected to the computer via a USB cable.
First you need to activate the developer mode on the TV DEXP. Go to Settings → About TV and quickly click on the “Build number” item 7 times. After this, a new section “For Developers” will appear in the settings menu. It needs to enable USB debugging (or network debugging). Then the package is installed on the computer ADB Platform Tools.
By connecting to the TV via the network (command adb connect TV_IP_address), you can send system commands. The most useful command for a soft reboot is: adb shell reboot. If the system does not respond, you can try a more severe option of rebooting the services: adb shell am start -n com.android.tv.settings/.DevicePreferencesActivity to try to call up the menu, or forcefully stop the culprit process.
adb connect 192.168.1.XX
adb shell reboot
- 💻 Install ADB drivers and tools on your PC or laptop.
- 📡 Enable "USB Debugging" in the developer menu on DEXP.
- 🔗 Connect to the TV with the command
adb connect. - 🚀 Enter the command
rebootto reboot safely.
Typical problems and their solutions
Even after a proper reboot, users may experience problems returning. For example, a TV DEXP may take a long time to load, showing the Android logo, or reboot cyclically. This is often due to full internal memory. The operating system Android requires free space (at least 10-15% of the total volume) for temporary files to work correctly.
Another common cause of instability is a low-quality third-party application. If problems started after installing a specific app (for example, a player or online cinema), try removing it. It is also worth checking the firmware version: manufacturers periodically release updates that correct stability errors. You can check for updates in the menu Settings → About TV → System update.
The interfaces and location of menu items may vary depending on the version of Android and the specific matrix model installed in your DEXP TV. If you cannot find the item described, look for a similar one or refer to the instructions for a specific model.
If the TV freezes immediately after booting, try disconnecting all USB devices and the antenna cable - sometimes a faulty external device blocks the system from starting.
Frequently asked questions (FAQ)
You can Is it possible to reset to factory settings often on DEXP?
Technically, you can do Factory Reset an unlimited number of times, this does not harm flash memory if used wisely. However, this is a labor-intensive process that requires a complete reconfiguration of all services, channels and applications. It is recommended to use this method only when a soft reboot and clearing the cache do not help.
DEXP TV does not turn off, the red indicator is on. What to do?
A lit red indicator means that the TV is in Standby mode and is receiving power. If it does not respond to the remote control, try performing a forced reboot using the button on the case (hold for 15 seconds). If this does not help, unplug the device for 5-10 minutes.
How to enter Recovery Mode if the menu does not load?
On different models DEXP the combinations are different. Try: turn off the TV, hold down the power button on the case, plug it into the outlet without releasing the button. Or: hold down “Volume -” and “Power” at the same time. If the menu does not appear the first time, repeat the procedure, changing the moment of connecting the power.
Does the warranty expire after resetting the settings?
No, a software reset (Factory Reset) is a standard function of the operating system Androidprovided by the manufacturer. It is not an intervention in the hardware or flashing with unofficial software, so the right to warranty service is retained.
Why does an Android TV need so much memory if it quickly runs out?
Operating system Android TV and modern applications weigh a lot. In addition, the system uses part of the memory for cache and buffering. On budget models DEXP with a small amount of built-in memory (4-8 GB), this is critical. It is recommended not to install heavy games and regularly clear the cache through settings or third-party utilities.