LS424 Theory of Operation
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This section describes how specific components operate on the LS424.
On-Board LEDs
The LS424 has a single red LED to indicate that the power is on. The LED will flash during the firmware update process. It will also flash a certain number of times to indicate an error state. The flash codes are described below:
Flash code | Description |
2 | Unspecified error |
3 | Network recovery script is preparing to run on a device configured for network recovery. |
4 | No upgrade file found. |
5 | Failed to load kernel module. |
6 | Board is not capable of running the current firmware version. |
7 | A piece of on-board hardware is not working correctly. |
8 | Problem related to the storage device (either the USB drive or microSD card) |
9 | Problem related to the registry/NAND |
10 | The autorun script encountered a load/run error. |
11 | WiFi-related error |
12 | Unable to find a bootable image. |
Service Button
The Service (SVC) button provides a dedicated GPIO button (GPIO12) for the OS. Pressing the SVC button pulls the pin low. Conversely, releasing the button pulls the pin high.
Reset Button
The Reset button is connected to the reset circuit. Pressing down the Reset button will send an initial signal to the system software, and holding the reset button low for approximately 4 seconds will cause a hard reset.
microSD Slot
The LS424 has one microSD slot, which supports transfer modes up to UHS-1 DDR50 (50MB/s). There is no inherent limit on the storage capacity of microSD cards used with the player.
Wireless Module
The LS424 has an internal M.2 slot for installing a compatible wireless module. The M.2 wireless module connects via cable to an external, attachable wireless antenna.