Owners of car multimedia systems from the Middle Kingdom often encounter a situation where, when the ignition is turned on, a standard Android screensaver or a completely black screen appears on the screen, instead of the corporate logo of the car manufacturer or the radio itself.
This problem can be solved quite simply, but requires caution when entering hidden sections of the system. Launch logo This is not just a picture, but a part of the firmware that can be disabled programmatically or replaced with a standard plug in order to save space or unify software for different markets.
In this article we will analyze in detail all the available methods for activating the image when the system starts, from simple settings in the menu to using specialized software on a PC.
Checking the factory settings through the hidden menu
The very first and safest step is checking the standard configuration sections. Many users miss this point, believing that the option is hidden deeper than it actually is.
Go to the Settingssection, and then find the item Factory settings (or Factory Settings). The system will ask for a password. The most commonly used codes are 8878, 1234, 0000 or 3368, but they depend on the processor model and firmware version.
Inside this section, look for a tab with the name Logo, Boot Animation or Startup Image. If such an item exists, simply check the box next to the option Enable Logo or select the desired file from the list.
Some Chinese manufacturers deliberately hide this function in deep submenus to avoid accidental changes by users. Be careful when navigating.
⚠️ Attention: Do not change the parameters in the "Factory settings" section if you are not sure of their purpose. An error may result in the touch screen not working or loss of sound.
Write down the current values of all parameters before making changes so that you can return everything as it was in case of failure.
Using the MCUTools application and the factory utility
If you could not find the desired option through the standard menu, most likely your The radio is controlled through a specialized application, often called MCUTools, MCU Update or Factory.
This application is responsible for the operation of the microcontroller (MCU), which controls the buttons, the rotary washer and the boot process. This is where the screen saver display setting is often stored.
Launch the application and go to the Other or Systemsection. Find item Boot Logo. There may be a toggle here that allows you to choose between "Android", "Car Logo" or "Custom".
In rare cases, you may need to download a special configuration file that will enable this feature. The interface may differ depending on the firmware version.
| Interface type | Section name | Possible action |
|---|---|---|
| Standard Android | Factory settings | Check "Show Logo" |
| MTCE / KLD | MCU Settings | Selecting a logo file |
| XY Auto | Factory | Changing the loading theme |
| Teyes / Junsun | Car Setting | Setting animation |
Manually replacing the logo file through a file manager
A more advanced method involves working directly with the device’s file system. This method requires a file manager with access rights to system partitions, for example Root Explorer or RE Manager.
You need to find the file responsible for the screensaver. Usually it has an extension .jpg, .png or .bin and is located in the directory /system/media or /oem/media.
Copy your desired image to the internal memory of the device. Rename it exactly the same as the name of the original logo file, and replace it, having first made a backup of the original.
Important: The image must match the screen resolution of your radio, otherwise it may be stretched or displayed incorrectly. After replacing the file, you need to change the access rights (permissions) to rw-r--r-- (644).
What to do if the radio does not see the new file?
Sometimes the system caches the old image. Try clearing the cache of the "Media Storage" application or perform a full reset after replacing the file.
Configuration through the engineering menu (Engineering Mode)
For devices on processors Rockchip or Allwinner access to a deep engineering menu is often available by typing a special code in "dialer" or through third-party applications like Engineer Mode.
Enter code ##3646633## or similar for your model. In the menu that opens, go to the tab Hardware Testing -> Boot.
Here you can find the parameter Boot Logo Type. Change its value to 1 or 2which usually corresponds to including a custom logo. Press the button Set to save.
After making changes, be sure to restart the device. If the menu is in English, use a translator so as not to get confused in technical terms.
⚠️ Attention: Entering the engineering menu gives access to critical hardware settings. Changing processor frequencies or voltages can damage the device.
☑️ Preparing for system modification
Firmware via PC and changing the boot.img image
The most radical, but also the most reliable way is to modify the boot image itself boot.img or recovery.img on the computer before flashing the radio.
To do this, you will need to download the original firmware for your model, unpack it and find the logo file inside the archive. Replace it with yours, pack the image back and flash the device via PC.
This method requires drivers ADB and a firmware utility (for example, Rockchip Batch Tool or Allwinner PhoenixSuit). The process is complex and is recommended only for experienced users.
If you are not confident in your abilities, it is better to use ready-made modified firmware from enthusiasts, where the logo has already been implemented. Search for such firmware using the exact model of your device.
Modifying the firmware image on a PC is the only way to guarantee a change in the logo if it is “hardwired” into the system by the manufacturer without the ability to disable it.
Possible problems and their solutions
Even if all steps are followed correctly, nuances may arise. For example, the logo turns on, but hangs on the screen for too long or blocks out useful information when loading.
Sometimes after replacing the picture, the radio takes longer to load than usual. This is due to the fact that the new file has more weight or unoptimized compression.
If the device goes into a cyclic reboot (bootloop), you will need to enter Recovery mode and perform a data reset (Wipe Data/Factory Reset).
It is also worth considering that some budget models have a physical memory limit, and replacing the logo with a too “heavy” image is simply not possible programmatically.
- 📉 Black screen: The logo file is damaged or has an incorrect format. Return the original file.
- 🔄 Cyclic reboot: File permissions error. Check that the permissions are 644.
- 🎨 Color distortion: The image was saved in the wrong color profile. Convert to sRGB.
- ⏳ Long loading: File size is too large. Compress the image without losing quality.
⚠️ Attention: The interfaces of Chinese radios are updated frequently. If the described menus do not match yours, look for instructions specifically for your software version on specialized forums.
Frequently asked questions (FAQ)
Where can I find the password for the factory settings?
Passwords often depend on the manufacturer. Try the combinations: 8878, 1234, 0000, 3368, 1617, 8888. The password can also be written on a sticker inside the cassette player.
Is it possible to put a video instead of a picture when loading?
No using standard means. The system only supports static images. To play the video at startup, a deep modification of the firmware and changes to the initialization scripts are required.
Is it safe to change the logo, will the warranty be void?
Software replacement of the logo file usually does not affect the warranty, since it does not affect the main sections of the system. However, if you gain superuser rights (Root), the warranty may be void.
Why did the sound disappear after replacing the logo?
Most likely, this is a coincidence or an error when copying files to the system folder. Try restoring the original logo file from a backup and rebooting the device.