LS5 Theory of Operation

this section describes how specific components operate on the ls425 and ls445 on board led the single on board led acts as a power on light (similar to the green led on other players) and will illuminate when power is applied to the player and will remain in a solid state the led will flash to indicate an error as described in the chart below, or flash during the firmware update process (it will cease flashing when the update is complete) the light will remain illuminated if power is on unless one of the following errors is present, or unless a firmware update is happening number of flashes code 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 on board switch / svc button the on board switch is connected to the gpio02, which is pulled low when the service (svc) button is pressed conversely, a pull up on the button normally sets the gpio02 to be pulled high reset switch / gpio button the reset button is connected to the reset circuit pressing the reset button will send an initial signal to the system software and holding the reset button low for approximately four seconds will cause a hard reset microsd slot the ls425 and ls445 have one microsd slot, which supports transfer modes up to uhs 1 ddr50 (50mb/s) there is a 2tb limit on the storage capacity of microsd cards used with the player wireless module the optional wifi module also has bluetooth functionality