The visual component of the operating system plays a huge role in the user’s perception of the device. The standard logo animation that we see every time we launch a smartphone often seems boring and monotonous. Many gadget owners dream of personalizing this moment by replacing the static manufacturer logo with their own image or unique animation.
The process of replacing loading screen (boot screen) on Android is significantly different from the usual change of wallpaper on the desktop. This is a deeper system modification that affects memory sections responsible for hardware initialization. In this article, we will analyze in detail what methods exist for changing the screensaver, from simple interface settings to advanced procedures using superuser rights.
It is worth noting right away that not all methods are available for every device. Much depends on your smartphone model, operating system version and shell manufacturer. Before taking active steps, you need to clearly understand the difference between standard settings and deep customization of the system.
Understanding the differences: lock screen and loading logo
First of all, it is important to distinguish between concepts that users often confuse. What many people call the "start-up screensaver" can actually be two completely different things. The first is lock screen (Lock Screen), which appears after the system has already booted, but the device is locked. The second is bootloader logo (Boot Logo), which is displayed in the very first seconds of pressing the power button, even before the password entry screen appears.
Changing the lock screen is a safe procedure and accessible to any user directly from the settings. You can install any photo, slideshow or widget. However, if your goal is to remove the logo Samsung, Xiaomi or Google at system startup, this cannot be done using standard means. This requires intervention in system files.
In some cases, manufacturers allow you to disable the boot animation in special engineering menus or developer modes, but this is rare. Most often, replacing the initial logo requires the presence root access and use of specialized software. An incorrect understanding of this difference can lead to the user looking for complex solutions where it is enough to simply change the wallpaper in the settings menu.
⚠️ Warning: Attempting to change the system boot logo (bootlogo) without proper preparation may result in the phone not turning on (bootloop). Make sure that you are changing exactly the screen you want.
Standard methods for personalizing the start screen
Let's start with safe methods that do not require superuser rights and do not carry the risk of turning your smartphone into a “brick”. Modern Android shells, such as One UI from Samsung or MIUI from Xiaomi, offer ample opportunities for customizing the lock screen.
To change the image that you see immediately after waking up the device, you need to go to the system settings. The path may vary slightly depending on the model, but usually it looks like this: Settings → Wallpaper and style → Lock screen. Here you can select a static image from the gallery or activate the “Wallpaper Carousel” feature, which will change pictures automatically.
Some manufacturers go further and allow you to customize the style of the clock, notifications, and even add widgets to the lock screen. This creates the illusion of a complete change of screen saver, although technically the system logo remains unchanged when turned on. For most users, this level of personalization is quite enough.
- 🖼️ You can set your own high-resolution photo to the lock screen through the standard wallpaper menu.
- ⏱️ In the lock screen settings, you can often change the format for displaying the time and date.
- 🔒 Using the "Smart Lock" feature allows you to customize the conditions under which the lock screen will not appear at all.
If you want the screen to immediately show the desktop when you press the power button without unnecessary delay for entering a password (in secure places), you can use the Smart Lock feature. This does not change the picture, but it changes the experience of interacting with the device when you turn on the screen.
Preparation for deep modification: Root and unlocking
If the standard methods do not suit you and you are determined to change the initial system logo, you will have to take more serious steps. The first and most important condition for such an operation is the presence of root access (superuser rights). Without them, access to the memory section where the bootloader image is stored is closed.
The process of obtaining root access varies from device to device. For processors MediaTek utilities like MTK Clientare often used, for Snapdragon unlocking the bootloader via fastboot and flashing a modified image boot.img using MagicMask or SuperSU. It is worth remembering that unlocking the bootloader almost always leads to a complete reset of the device data.
Before starting any manipulations, it is critical to make a complete backup copy of all data. Losing photos, contacts and messages is the least of the problems you might encounter if the modification goes wrong. It is also recommended to make sure that the battery charge is at least 70-80%.
☑️ Preparing to change the boot logo
After obtaining superuser rights, you will need a file manager with support for working in system directories, for example Root Explorer or Solid Explorer with root access enabled. It is through these tools that you can get to your treasured files.
⚠️ Attention: Unlocking the bootloader will void the device warranty in most service centers. The official support service may refuse to repair if it finds traces of tampering with the system software.
Technical aspects of replacing the Boot Logo
The file itself, which is responsible for displaying the picture when turned on, is usually called logo.bin, splash.img or simply stored in the section misc or boot, depending on the device architecture. On smartphones with processors Qualcomm the format splash.imgis often used, which is a set of images in a certain resolution.
Simply replacing the file in Explorer is not enough. The image must strictly match your device's screen resolution and color format (usually RGB565 or RGB888). If you upload a picture at the wrong size, you'll see a black screen or artifacts instead of the logo. To prepare an image, special utilities on a PC are often used, such as LogoBuilder or Android Image Kitchen.
The replacement process usually looks like this: you extract the original image file, modify it on the computer, pack it back and flash it into the partition via recovery or command fastboot. The command for flashing the firmware may look like this:
fastboot flash splash splash_custom.imgOr, if you are working directly from a system with root access, you can use the commands dd to write data directly to the block device. However, this method is extremely dangerous for beginners, since one mistake in the device name (for example /dev/block/mmcblk0p15) can overwrite critical data.
What is the RGB565 format?
It is a color encoding format that uses 16 bits per pixel (5 bits for red, 6 for green and 5 for blue). Most Android boot logos use this format to save space and speed up rendering. Converting a regular JPG to this format requires special converters.
Using specialized applications and modules
For those who do not want to bother with console commands and manual editing of binary files, there are simpler solutions. In the application store Google Play and on forums like 4PDA or XDA Developers you can find apps that automate the process.
One of the popular solutions is to use modules for MagicMask (formerly Magisk). There are modules that, when installed, automatically replace the system logo with a custom one. This is safer than writing directly to the partition, since the modules operate in systemless mode (without directly affecting the system partition) and can be easily removed.
There are also applications like Boot Animation Changer. It is important not to confuse them: they change the loading animation (moving elements) that goes with after a static logo. Such applications also require root access to operate. They allow you to set a video or sequence of frames as a screensaver.
| Change method | Required rights | Risk of breakdown | Difficulty |
|---|---|---|---|
| Changing lock wallpaper | No | Absent | Low |
| Magisk modules (Boot Logo) | Root | Low | Medium |
| Boot Animation Applications | Root | Low | Medium |
| Manual replacement of splash.img | Root + Unlocked BL | High | High |
When choosing an application, carefully read reviews and check compatibility with your version of Android. What worked on Android 10may cause instability on Android 14 due to changes in the structure of memory partitions (for example, the introduction of dynamic partitions).
Before installing any module or application to change the logo, take a screenshot (backup) of the current state of the system through your application to manage root access. This will allow you to quickly roll back changes in case of an error.
Possible problems and ways to solve them
Even if you follow all the instructions, unforeseen situations may arise. The most common problem is a "black screen" when turned on. This means that the system cannot display the new logo correctly, but the download itself will most likely continue. In this case, you just need to wait a minute, the device can boot in normal mode.
A more serious problem is bootloop (cyclic reboot). If, after replacing the logo, the phone constantly reboots at the splash screen stage, then the boot image is damaged. To solve this problem, you will need to enter Recovery Mode.
If you have a custom recovery installed (for example, TWRP), you can go into it, connect to your PC and restore the original file logo.bin or splash.img from a previously made backup copy. If the recovery is stock, you may have to reflash the entire device through mode fastboot or manufacturer-specific utilities (Odin for Samsung, MiFlash for Xiaomi).
⚠️ Attention: Interfaces and names of menu items may differ depending on the firmware version and the regional version of the device. Always check the official documentation or specialized forums for your specific model before starting work.
Sometimes the problem lies not in the file, but in the access rights. After replacing the file, make sure that it has the correct permissions. Usually they should match the original file (often this rw-r--r-- or 644). Incorrect permissions can block the system from reading a file early in the boot process.
The most reliable way to avoid problems is not to manually replace files via dd, but to use proven modules for Magisk that make it easy to roll back changes in case of failure.
Frequently asked questions (FAQ)
Is it possible to change the logo when turned on without root access?
Unfortunately, no. Standard Android tools do not provide access to the memory section where the bootloader image is stored. Without superuser rights (Root), you can only change the lock screen wallpaper and boot animation (if the manufacturer has provided this option in the theme settings), but not the static brand logo.
Is it safe to change the bootlogo for banking applications?
Changing the image itself does not affect the operation of applications. However, the very fact of having root access and an unlocked bootloader can disrupt the operation of banking applications and Google Pay (Wallet) services. They use the SafetyNet or Play Integrity API service, which checks the integrity of the system. To get around this, you need to additionally configure Magisk Hide or Zygisk.
What to do if the phone does not turn on after replacing the logo?
Don’t panic. Try entering Recovery mode (usually by holding down the power button and volume up). If you have access to the file system via Recovery, restore the original logo file from the backup. If this does not help, you will need to completely flash the device through a computer using the official firmware.
Does a custom logo affect the boot speed of the phone?
No, the visual image does not affect the speed of kernel initialization and system boot. The startup time depends on the speed of the drive (eMMC/UFS) and firmware optimization. The only exception is that if you put heavy animation instead of a static picture, the processor may process frames a little longer, but this difference is invisible to the eye.
Where can I find ready-made splash.img files for my model?
The best source is specialized forums such as 4PDA or XDA Developers. In threads discussing your specific phone model, users often share modified bootlogo files. Never use files from other models, even if they are from the same manufacturer - this is guaranteed to lead to errors.