[Keyboard] Helen80 matrix fixes (#11969)

Co-authored-by: LIParadise <a58524andy>

keyboards/playkbtw/helen80/helen80.h

@@ -27,7 +27,7 @@
     K50, K51, K52,                K53,                K54, K55, K56, K57,   K58, K59, K5A  \
 ) { \
     { K00,   K01,   K02,   K03,   K04,   K05,   K06,   K07,   K08,   K09,   K0A,   K0B,   K0C,   K0D,   K0E   }, \
-    { K10,   K11,   K12,   K13,   K14,   K15,   K16,   K17,   K18,   K19,   K1A,   K1B,   K1C,          K1E   }, \
+    { K10,   K11,   K12,   K13,   K14,   K15,   K16,   K17,   K18,   K19,   K1A,   K1B,   K1C,   KC_NO, K1E   }, \
     { K20,   K21,   K22,   K23,   K24,   K25,   K26,   K27,   K28,   K29,   K2A,   K2B,   K2C,   K2D,   K2E   }, \
     { K30,   K31,   K32,   K33,   K34,   K35,   K36,   K37,   K38,   K39,   K3A,   K3B,   K3C,   K3D,   K3E   }, \
     { K40,   KC_NO, K41,   K42,   K43,   K44,   K45,   K46,   K47,   K48,   K49,   K4A,   K4B,   KC_NO, K4C   }, \

keyboards/playkbtw/helen80/rules.mk

@@ -16,7 +16,7 @@ COMMAND_ENABLE = no         # Commands for debug and configuration
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 NKRO_ENABLE = yes           # USB Nkey Rollover
-BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
@@ -27,4 +27,4 @@ KEY_LOCK_ENABLE = no      # Enable KC_LOCK support
 LAYOUTS = tkl_ansi
 
 # generated by KBFirmware JSON to QMK Parser
-# https://noroadsleft.github.io/kbf_qmk_converter/
+# https://noroadsleft.github.io/kbf_qmk_converter/