Owners of modern car head units based on Android are often faced with the desire to personalize the interface of their system. Standard wallpaper preset by the manufacturer may look boring, not match the interior of the car, or simply become boring over time. However, the process of changing the background on such devices has its own nuances that differ from ordinary smartphones or tablets.
The main difficulty is that many Chinese radio manufacturers block the ability to simply change the system wallpaper or replace it with their own logo every time you turn it on. To solve this problem and make the interface unique, you need to understand the types of launchers and system settings of your device. In this article we will look at all the available ways to change the visual style.
Regardless of the model of your device, be it Teyes, Junsun or an unnamed Chinese assembly, the principles of the file system and display settings remain similar. We will look in detail at how to replace a static image, remove the annoying logo when loading, and even change the background in the settings menu, which often remains unchanged during the standard procedure.
Features of the file system and launchers
Before taking active steps, it is important to understand what type of software you are dealing with. Most radio tape recorders work on modified versions Android, where the interface is controlled by a special launcher. It is he who is responsible for displaying icons, widgets and, what is important for us, the background image.
In some cases, manufacturers hardcode the image into the system partition, making it impossible to replace it through standard settings. In other situations, simply uploading a new image to a specific folder is sufficient. The key point is to determine the firmware version and the type of launcher installed.
First, check the screen settings. Go to menu Settings → Screen → Wallpaper. If there is a choice from the gallery or the ability to upload your photo, you're in luck - this is the simplest scenario. If the item is missing or the selection is limited to a few pictures, you will need a more in-depth approach through the file manager.
Before any manipulations with system files, be sure to back up important data or at least take a photo of the current settings on your phone.
Replacing wallpaper using standard ones settings
The safest and easiest method that you should try first is to use the built-in functionality. Even if the manufacturer has limited the capabilities, you can often bypass the restrictions by using third-party wallpaper installation applications available in Google Play or the built-in application store.
Install any popular wallpaper changing application, for example Wallpaper Changer or similar. Launch it, select your favorite image from the gallery or the Internet and apply it as your desktop background. Some launchers automatically pick up this change.
If the standard launcher ignores third-party applications, try changing the launcher itself. Installing an alternative shell, such as AGAMA Car Launcher or CarWebGuru, will not only change the background, but will also completely transform the interface, making it more convenient to control on the move.
- 🖼️ Download a high-resolution image that matches the screen size of your radio (often 1024x600 or 1280x720).
- 📂 Save the file to the internal memory of the device, creating a separate folder for convenience, for example
Pictures/Wallpapers. - ⚙️ Go to the display settings and select the option to set the background from the gallery.
- 🔄 Reboot the device to make sure that the settings are applied correctly and the background is not reset.
Manual replacement through a file manager
If standard methods do not work, you will have to work with the file system directly. This method requires installing a file manager such as ES Explorer, Total Commander or X-Plore. With their help, we will find the system folder where the current wallpaper is stored.
Most often, system wallpapers are located in the directory /system/media/oem/oem-res/res/drawable-hdpi/ or in the folder /data/local/. The file name usually contains the word wallpaper or bg. You need to replace this file with your own, having first renamed it exactly like the original.
Please note that writing to system folders may require root access. If your device is not rooted, you can try replacing the file in the user folder that the launcher picks up, for example /sdcard/Pictures/, and point to it in the settings if this option is hidden.
⚠️ Attention: When replacing system files, always save the original under a different name. If the new image does not match the format or resolution, the system may freeze or show a black screen, and restoring the original will save the situation.
The replacement process is as follows: find the original file, copy it to a safe place (for example, to an SD card), then delete the original and rename your new image exactly like the deleted file. After this, reboot the radio.
☑️ File preparation checklist
Removing the manufacturer's logo during boot
One of the most annoying features of many budget radios is the brand logo, which appears every time you turn on the ignition and hangs for a few seconds before Android loads. It is more difficult to remove it, since it is often hardwired into the section bootlogo.
To replace the boot logo, special utilities are usually required that depend on the device processor (Rockchip, Allwinner, MTK). For example, for Rockchip processors, a app Rockchip Batch Tool or utility LogoBuilderis used. You will need to connect the radio to the PC in firmware mode.
There is also a software method through the engineering menu. Try entering the manufacturer's code in the dialing field (if you have phone emulation) or find the entrance to the engineering menu in the settings. There may be an item Boot Animation or Logo Settingthat allows you to disable or replace the picture.
| Processor type | Replacement tool | Complexity | Risk failure |
|---|---|---|---|
| Rockchip PX5/PX6 | LogoBuilder / RKDevTool | Average | High |
| Allwinner T3/T8 | PhoenixSuit / LiveSuit | High | Critical |
| MediaTek (MTK) | SP Flash Tool | High | Critical |
| Intel Atom | Intel Flash Tool | Low | Medium |
What to do if the logo does not change?
If software methods do not help, the logo can be physically sewn into the firmware image without the ability to be edited by the user. In this case, the only solution is to search and install custom firmware from enthusiasts, where the logo has already been removed or replaced.
Setting the screen saver and sleep mode
In addition to the desktop and loading screen, many users want to change the picture that appears when the radio goes into sleep mode (Standby). Often this is a black and white clock or a standard screensaver. You can change it through power settings or special applications.
In the system settings, find the section Display → Screensaver or Daydream. Here you can choose to display photos from your gallery instead of the standard clock. If there is no such item, install an application like Daydream from the application store, which will allow you to set up a slideshow of your photos when the system is idle.
Some advanced launchers have a built-in function for setting the lock screen and sleep. In the parameters of such a launcher, you can set your own image for the moment when the screen goes dark, but the device is not yet completely turned off.
⚠️ Attention: Using bright and complex images in screensaver mode can lead to burnout of the screen matrix over time, especially if the radio is in sleep mode for a long time when parked in the sun. It is recommended to use dark colors.
It is also worth checking the screen timer settings. Set the optimal time so that the screen goes dark faster, saving car battery power and preventing potential problems with the display.
Common problems and their solutions
During the customization process, users often encounter a number of common problems. The most common is that the image is stretched or cropped. This occurs due to a mismatch between the aspect ratio of your photo and the physical resolution of the radio screen.
The second problem is a black screen after replacing the system file. This means that the system was unable to read the new file, possibly due to an incorrect format or dead pixels in the file header. In this case, restoring the original from a backup via Recovery mode or a file manager from a PC helps.
Sometimes after a reboot, the settings are reset to factory settings. This behavior is typical for some firmware versions, where the partition /data is cleared with each power cycle. In this case, only installing an alternative launcher that stores the settings in its own folder will help.
- 📐 Use graphic editors to precisely adjust the image resolution to the screen (for example, 1024x600).
- 💾 Save images in format JPEG with quality 80-90%, so as not to take up extra memory.
- 🔌 When connecting to a PC to transfer files, use a high-quality USB cable to avoid data damage.
The main difficulty in replacing the background on radios is the variety of firmware. There is no universal button, so trial and error with a file manager is often the only working option.
Questions and answers (FAQ)
Is it possible to remove the background forever without installing third-party apps?
It is impossible to completely remove the background (make it transparent), since the screen matrix must display something. However, you can set the image to a single color (black or gray), which will visually simulate the absence of a background. This is done by replacing the system wallpaper file with a solid color.
Why does the old logo return after a reboot?
This means that you changed the file in the temporary partition or user memory, and the system copies the original file from the protected system partition when booting. For permanent changes, you need root access and mounting the partition /system in recording mode.
Is it safe to install custom launchers on the radio?
Yes, installing launchers from Google Play is safe and reversible. You can delete the application at any time and return to the standard interface. The risk arises only when obtaining root access and manually editing system files.
How to find the exact screen resolution of my radio?
Install an application like CPU-Z or Device Info HW. In the section Display or Device the exact resolution in pixels (Width x Height) will be indicated. This is critical for preparing a picture without distortion.
Is it possible to put a video instead of a background?
This is not possible using standard Android tools. However, there are special video wallpaper applications (Live Wallpapers) that can play a video file in a loop on the desktop. Please note that this increases the load on the processor and energy consumption.