diff --git a/src/lib/assets/layouts/generic/103-key.yml b/src/lib/assets/layouts/generic/103-key.yml
index e30531b8..1916100c 100644
--- a/src/lib/assets/layouts/generic/103-key.yml
+++ b/src/lib/assets/layouts/generic/103-key.yml
@@ -1,27 +1,27 @@
 name: Lite
 col:
   - row:
-      - key: 110
+      - key: 27
       - key: 112
-        offset: [ 1, 0 ]
+        offset: [1, 0]
       - key: 113
       - key: 114
       - key: 115
       - key: 116
-        offset: [ 0.5, 0 ]
+        offset: [0.5, 0]
       - key: 117
       - key: 118
       - key: 119
       - key: 120
-        offset: [ 0.5, 0 ]
+        offset: [0.5, 0]
       - key: 121
       - key: 122
       - key: 123
-      - key: 124
-        offset: [ 0.25, 0 ]
-      - key: 125
-      - key: 126
-  - offset: [ 0, 0.25 ]
+      - key: 42
+        offset: [0.25, 0]
+      - key: 145
+      - key: 19
+  - offset: [0, 0.25]
     row:
       - key: 1
       - key: 2
@@ -37,19 +37,19 @@ col:
       - key: 12
       - key: 13
       - key: 15
-        size: [ 2, 1 ]
+        size: [2, 1]
       - key: 75
-        offset: [ 0.25, 0 ]
+        offset: [0.25, 0]
       - key: 80
       - key: 85
       - key: 90
-        offset: [ 0.25, 0 ]
+        offset: [0.25, 0]
       - key: 95
       - key: 100
       - key: 105
   - row:
       - key: 16
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 17
       - key: 18
       - key: 19
@@ -63,21 +63,21 @@ col:
       - key: 27
       - key: 28
       - key: 29
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 76
-        offset: [ 0.25, 0 ]
+        offset: [0.25, 0]
       - key: 81
       - key: 86
       - key: 91
-        offset: [ 0.25, 0 ]
+        offset: [0.25, 0]
       - key: 96
       - key: 101
       - key: 106
-        size: [ 1, 2 ]
-  - offset: [ 0, -1 ]
+        size: [1, 2]
+  - offset: [0, -1]
     row:
       - key: 30
-        size: [ 2, 1 ]
+        size: [2, 1]
       - key: 31
       - key: 32
       - key: 33
@@ -90,14 +90,14 @@ col:
       - key: 40
       - key: 41
       - key: 43
-        size: [ 2, 1 ]
+        size: [2, 1]
       - key: 92
-        offset: [ 3.5, 0 ]
+        offset: [3.5, 0]
       - key: 97
       - key: 102
   - row:
       - key: 44
-        size: [ 2.5, 1 ]
+        size: [2.5, 1]
       - key: 46
       - key: 47
       - key: 48
@@ -109,35 +109,34 @@ col:
       - key: 54
       - key: 55
       - key: 57
-        size: [ 2.5, 1 ]
+        size: [2.5, 1]
       - key: 83
-        offset: [ 1.25, 0 ]
+        offset: [1.25, 0]
       - key: 93
-        offset: [ 1.25, 0 ]
+        offset: [1.25, 0]
       - key: 98
       - key: 103
       - key: 108
-        size: [ 1, 2 ]
-  - offset: [ 0, -1 ]
+        size: [1, 2]
+  - offset: [0, -1]
     row:
       - key: 58
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 59
       - key: 60
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 61
-        size: [ 7, 1 ]
+        size: [7, 1]
       - key: 62
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 63
       - key: 64
-        size: [ 1.5, 1 ]
+        size: [1.5, 1]
       - key: 79
-        offset: [ 0.25, 0 ]
+        offset: [0.25, 0]
       - key: 84
       - key: 89
       - key: 99
-        offset: [ 0.25, 0 ]
-        size: [ 2, 1 ]
+        offset: [0.25, 0]
+        size: [2, 1]
       - key: 104
-
diff --git a/src/lib/serial/device.ts b/src/lib/serial/device.ts
index eddea6e9..45ae9cd3 100644
--- a/src/lib/serial/device.ts
+++ b/src/lib/serial/device.ts
@@ -15,7 +15,7 @@ const PORT_FILTERS: Map<string, SerialPortFilter> = new Map([
 const KEY_COUNTS = {
   ONE: 90,
   LITE: 67,
-  X: 255,
+  X: 256,
 }
 
 if (browser && navigator.serial === undefined && import.meta.env.TAURI_FAMILY !== undefined) {
@@ -55,7 +55,7 @@ export class CharaDevice {
   company!: "CHARACHORDER"
   device!: "ONE" | "LITE" | "X"
   chipset!: "M0" | "S2"
-  keyCount!: 90 | 67 | 255
+  keyCount!: 90 | 67 | 256
 
   constructor(private readonly baudRate = 115200) {}