Split screen on an Android radio: all the methods and nuances

The split screen function on an Android radio allows you to simultaneously use two applications - for example, a navigator and a music player or messenger and video player. This is especially convenient on the road when you need to keep track of your route and quickly switch between tasks without losing concentration. However, not all radios support this option out of the box, and in some cases it needs to be activated through hidden settings or third-party utilities.

In this article we will look at all possible ways to split the screen: from standard functions Android Auto and MirrorLink to manual configuration via ADB or specialized launchers. You'll learn how to check the compatibility of your model, what apps can help you bypass system limitations, and what to do if the screen doesn't split into two parts. We will pay special attention to typical errors (for example black screen or interface freezing) and ways to eliminate them.

Important: screen splitting capabilities depend on the version of Android and the manufacturer of the radio (Pioneer, Xtrons, Joying etc.) and installed firmware. If your model was released before 2019, the likelihood of multi-window support is lower - but this is not a death sentence.

Checking split-screen support on your radio

Before trying to set up split-screen, make sure that your device supports this function at all. Here are the key points to check:

• 📱 Android version: Multi-window officially appeared in Android 7.0 Nougat, but many Chinese radios on Android 5.1/6.0 have it in hidden settings. On Android 10+ the function is usually available by default.
• 🔧 Firmware: Stock firmware from manufacturers (for example, Pioneer SPH-DA120) often lack this option, while custom ones (for example, Hal9k Mod) add it.
• 🖥️ Hardware limitations: Radios with a lower screen resolution 800×480 may not support separation due to insufficient pixels for comfortable display.

To quickly check support:

1. Open any application (for example, Google Maps).
2. Press the button "Recent" (square or three lines at the bottom of the screen).
3. If the inscription "Split screen" or icon "⧉" appears at the top of the screen, the function is available.

If there is no option, do not rush to get upset. In the following sections we will look at workarounds, including activation via ADB without root access - this works even on “closed” firmware.

Method 1: Standard bifurcation through the Android menu

On radios with Android 7.0+ and stock firmware from Sony, JVC or Alpine the function is usually turned on like this:

1. Open the first application (for example, Waze).
2. Press the button "Recent" and hold the application icon.
3. In the menu that appears, select "Split screen" (or "Split screen").
4. Select the second application from the list of recent ones.

Then the screen will be divided into two parts. To change the proportions, drag the dividing line up or down. Please note:

• 🔄 Not all applications support multi-window. For example, YouTube may block playback in split mode.
• 📵 On some radios (Atoto A6) when split, the touch control panel is disabled - use physical buttons.

Make sure that both applications are updated

Close background processes (type cleaner CCleaner)

Disable power saving in Android settings

Check the Internet connection (for online applications)

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⚠️ Attention: On radios with a Android 8.0 Oreo and Rockchip PX5 processor, after bifurcation, the sound in one of the applications may disappear. Solution - restart. device or turn on the mode "Do not interrupt the sound" in the sound settings.

Method 2: Separation via Android Auto or MirrorLink

If the standard method does not work, try use Android Auto or MirrorLink. These protocols often support multi-window even on “weak” radios. Instructions:

1. Connect your smartphone to the radio via USB or Wi-Fi (depending on model).
2. Run Android Auto on the phone.
3. In the settings Android Auto select "Allow separate screen" (on some firmware the option is called "Multi-window mode").
4. On the radio in the interface Android Auto swipe left or right to see the second window.

Advantages of this method:

• 🔹 It even works on Android 5.1 (if the radio supports Android Auto).
• 🔹 More stable than standard bifurcation - less lag.
• 🔹 Supports voice control (for example, commands "Okay, Google").

Disadvantages:

• 📱 Requires constant connection of the smartphone.
• 🔌 Some applications (for example, Netflix) block output to an external screen.

Which radios support Android Auto with bifurcation?

List of models with confirmed support:

- Pioneer AVH-Z5200BT (with firmware 2021+)

- Sony XAV-AX5000 (requires update to Android 9)

- Joying JY-UQ128 (on database Qualcomm 665)

- Atoto S8 Ultra (with custom launcher)

For other models, check compatibility on the manufacturer's website or in thematic forums (for example, 4PDA).

Method 3: Activation via ADB (without root)

If your radio on Android 7.0+, but the function is hidden, it can be enabled via ADB commands. This method does not require root access and works on most devices with processors Rockchip or Qualcomm.

You you will need:

• 🖥️ Computer with Windows/Linux.
• 🔌 Cable USB-A → USB-A (or USB-C, depending on the radio connectors).
• 📦 Utility ADB Tools (download from the official website Android Developers).

Step-by-step guide:

1. Turn on the radio USB debugging mode:

   Settings → About phone → Build number (tap 7 times)
   Settings → For developers → USB debugging (enable)

2. Connect the radio to the PC and enter in the command line:

   adb devices

   The device should appear (if not, install drivers).

3. Enter the command to activate bifurcation:

   adb shell settings put global enable_multi_window_support 1

4. Reboot the radio:

   adb reboot

After the reboot, check for the appearance of the option "Split screen" in the recent applications menu. If it is not there, try an alternative command:

adb shell am start -n com.android.systemui/.split.SplitScreenActivity

⚠️ Attention: On radios with Android 10+ and a processor MTK (for example, Xtrons PB7868AP) ADB commands may not work due to manufacturer restrictions. In this case, only firmware with support will help. multi-window.

Method 4: Using third-party launchers

If the previous methods did not work, installing an alternative launcher may solve the problem:

Launcher	Bifurcation support	Compatibility	Features
Nova Launcher	✅ Yes (plugin TeslaUnread)	Android 5.0+	Flexible gesture settings, theme support
Hal9k Mod	✅ Yes (built-in)	Only for radios	Optimized for cars, support CAN buses
Lean Launcher	❌ No	Android 6.0+	Lightweight, but without multi-window
Car Launcher Pro	✅ Yes (paid)	Android 7.0+	Integration with Android Auto, voice control

Setup instructions using example Hal9k Mod:

1. Download APK from the official website (version for your radio).
2. Install via the file manager (allow installation from unknown sources).
3. Launch the launcher and go to Settings → Multi-window.
4. Enable the option "Allow split screen" and select applications to autostart.

Hal9k Mod also allows you to configure:

• 🔄 Automatic splitting when starting the navigator.
• 📱 Display notifications in the second window.
• 🔊 Separate volume control for each window.

Solving split screen problems

If the screen does not split or does not work correctly, check these points:

• 🔄 Black screen in one of the windows: usually related to the graphics driver. Try changing the screen resolution in the display settings (for example, from 1024×600 to 800×480).
• 🔊 No sound: in the sound settings, select "Mono audio" instead of "Stereo".
• ⚡ Lags and freezes: close background processes via Developer Options (Do not save activity).
• 📵 Does not work sensor: update the touch firmware (for example, for Goodix or FocalTech chips).

For radios on Android 6.0 with a processor Rockchip PX3 (for example, Xtrons PB7868AP) there is an error "Unfortunately, System UI has stopped" when trying to bifurcate. Solution:

1. Install APK patch for SystemUI (search on 4PDA for your model).
2. Disable battery optimization for SystemUI in application settings.

Alternative solutions: if all else fails

If your radio does not support splitting in any of the described ways, consider these options:

• 📺 External monitor: Connect a second screen via HDMI or AV-out and use it for a second application (for example, a video player).
• 🔄 Quick switching: Set up gestures to instantly switch between applications (in Nova Launcher this is done through Settings → Gestures).
• 📱 Mirroring from the phone: Use ApowerMirror or TeamViewer QuickSupportto duplicate the smartphone screen to the radio and launch a second application there.

For owners of radios on Android 4.4 KitKat and below (for example, Pioneer AVH-X5800BHS) splitting the screen is impossible at the software level. In this case, only:

• 🔧 Hardware modification (installation of an additional display).
• 📦 Replacing the firmware with a custom one (for example, LineageOS for a car, if there is a port for your model).

⚠️ Attention: Flashing the radio with unofficial software can lead to loss of warranty and inoperability CAN buses (climate control, steering wheel buttons Before the procedure, make a backup via TWRP or Rockchip Batch Tool.

FAQ: Frequently asked questions about split screen

Is it possible to split the screen on a radio with Android 5.1?

Yes, but not on all models. On Android 5.1 Lollipop the function is hidden and requires activation through ADB or installing a custom launcher (for example, Hal9k ModCheck the compatibility of your radio on the forums - for example, there are working ones for your radio). instructions. Joying JY-UQ128 There are working instructions.

Why does the sound disappear in the navigator after bifurcation?

This is a typical problem with radios on the processor. Rockchip PX5. Solutions:

1. In the sound settings, select "Do not interrupt audio".
2. Install an alternative player (for example, VLC instead of the standard one).
3. Update the firmware to a version with a corrected audio driver.

How to return the standard launcher after installing Hal9k Mod?

Go to Settings → Applications → Default launcher and select "System launcher". If there is no option, delete Hal9k Mod via Settings → Applications → Uninstall (reset to factory settings will be required if the launcher was installed as a system launcher).

Does splitting work on radios with wireless CarPlay?

No, CarPlay (as well as Android Auto in wireless mode) does not support multi-window. To split, you need to connect via cable or use alternative solutions (for example, MirrorLink).

Is it possible to split the screen into 3 or 4 parts?

Standard Android does not support splitting into more than 2 windows. However, on some radios (for example, Atoto S8 Gen2you can use floating windows:

1. Enable in the developer settings "Floating" windows".
2. Launch the application, swipe down from the top edge - it will turn into a small window.
3. Repeat for other applications (up to 3-4 windows at a time).

Minus: floating windows are smaller in size and less convenient to navigate.