Test and service button not working

[deadpixel134]

.ini:

[io4]
; Input API selection for JVS input emulator.
test=0x2D
service=0x2E
coin=0x24
volup=0x26
voldown=0x28

[touch]
; Enable or disable touch hook
enable=0

config.json

	"input" :
	{
		"system" :
		[
			{
				"id"		: "test",
				"type"		: "usb_switch",
				"usb_node"	: 0,
				"index"		: 0
			},
			{
				"id"		: "service",
				"type"		: "usb_switch",
				"usb_node"	: 0,
				"usb_player": 0,
				"index"		: 6
			}
		"players" :
		[
			[
				{
					"id"        : "up",
					"type"      : "usb_switch",
					"usb_node"  : 0,
					"usb_player": 0,
					"index"     : 1
				},
				{
					"id"        : "down",
					"type"      : "usb_switch",
					"usb_node"  : 0,
					"usb_player": 0,
					"index"     : 0
				}
			]
		]
	},

version: 3.1

Touch input in VR works but test and service button on panel is not working
There's a sound effect but doing nothing

The volume control by pressing arrow up, down key on keyboard works