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Download latest version of Lost Labyrinth DX
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Version 2.0.2 "Tomb Shadow" (14.01.2024)
Requires a 64-bit operating system.
If you have trouble running the
game, post your issue on support@labydx.com
Ensure you aren't using a "charge-only" cable.
What are you using (e.g., RK3588, RK3399)? What operating system is installed on your host computer?
To force the Rockchip SoC into a flashing state, you must hold down specific hardware buttons while connecting it to your PC. Completely power off the Rockchip device. Open on your PC.
Some devices won't enter MaskROM mode unless they receive sufficient power. If your device has a dedicated power input (e.g., a barrel jack), use it. The power provided by a computer's USB port alone may be insufficient.
Change the setting to for both "On battery" and "Plugged in". Disable Driver Signature Enforcement
Ensure you have installed the Rockchip Driver Assistant ( Radxa Docs ). If previously installed, try uninstalling and reinstalling to clear "ghost" devices ( Sovol Forum ).
Open on Windows. When the device is connected in Loader mode, you should see "Class for rockchip devices" -> "Rockusb Device." If you see "Unknown USB Device (Device Descriptor Request Failed)," the driver is not active. 4. Disable Driver Signature Enforcement
Sometimes the hardware is fine, but Windows security or RKDevTool configurations prevent the software from initializing the connection. Run as Administrator
Some cheap “Rockchip” boards use cloned or mismarked chips. Their USB PID/VID might not match Rockchip’s standard values. In that case, you must manually edit rkdevtool.ini or compile rkdeveloptool with custom VID/PID.
Let's fix them in order of probability.
What does your show when the device is plugged in?
Run DriverAsssitant as Admin; turn off Windows Core Isolation. Board boots up normally to Android/Linux Wrong button sequence Hold Recovery button before inserting the USB cable. RKDevTool shows "No Devices Found" on USB 3.0 Controller incompatibility Use a USB 2.0 port or a dedicated USB 2.0 hub. To help pinpoint your exact issue, let me know:
RKDevTool is a Windows-based software tool developed by Rockchip, a Chinese fabless semiconductor company. The tool allows developers to communicate with Rockchip-based devices, enabling them to perform various tasks such as:
If you see "Unknown USB Device (Device Descriptor Request Failed)" or a yellow exclamation mark, your drivers are not working, or the cable is faulty. 4. Swap Cables and USB Ports
Alternatively, right-click and choose every time you launch it. Summary of RKDevTool Status Messages
Ensure you aren't using a "charge-only" cable.
What are you using (e.g., RK3588, RK3399)? What operating system is installed on your host computer?
To force the Rockchip SoC into a flashing state, you must hold down specific hardware buttons while connecting it to your PC. Completely power off the Rockchip device. Open on your PC.
Some devices won't enter MaskROM mode unless they receive sufficient power. If your device has a dedicated power input (e.g., a barrel jack), use it. The power provided by a computer's USB port alone may be insufficient.
Change the setting to for both "On battery" and "Plugged in". Disable Driver Signature Enforcement
Ensure you have installed the Rockchip Driver Assistant ( Radxa Docs ). If previously installed, try uninstalling and reinstalling to clear "ghost" devices ( Sovol Forum ).
Open on Windows. When the device is connected in Loader mode, you should see "Class for rockchip devices" -> "Rockusb Device." If you see "Unknown USB Device (Device Descriptor Request Failed)," the driver is not active. 4. Disable Driver Signature Enforcement
Sometimes the hardware is fine, but Windows security or RKDevTool configurations prevent the software from initializing the connection. Run as Administrator
Some cheap “Rockchip” boards use cloned or mismarked chips. Their USB PID/VID might not match Rockchip’s standard values. In that case, you must manually edit rkdevtool.ini or compile rkdeveloptool with custom VID/PID.
Let's fix them in order of probability.
What does your show when the device is plugged in?
Run DriverAsssitant as Admin; turn off Windows Core Isolation. Board boots up normally to Android/Linux Wrong button sequence Hold Recovery button before inserting the USB cable. RKDevTool shows "No Devices Found" on USB 3.0 Controller incompatibility Use a USB 2.0 port or a dedicated USB 2.0 hub. To help pinpoint your exact issue, let me know:
RKDevTool is a Windows-based software tool developed by Rockchip, a Chinese fabless semiconductor company. The tool allows developers to communicate with Rockchip-based devices, enabling them to perform various tasks such as:
If you see "Unknown USB Device (Device Descriptor Request Failed)" or a yellow exclamation mark, your drivers are not working, or the cable is faulty. 4. Swap Cables and USB Ports
Alternatively, right-click and choose every time you launch it. Summary of RKDevTool Status Messages