diff --git a/corne/firmware/config.h b/corne/firmware/config.h
index a708ae9..62ac9b5 100644
--- a/corne/firmware/config.h
+++ b/corne/firmware/config.h
@@ -89,6 +89,7 @@
 #    define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
 //#    define WS2812_DMAMUX_ID STM32_DMAMUX1_TIM2_UP // DMAMUX configuration for TIMx_UP -- only required if your MCU has a DMAMUX peripheral, see the respective reference manual for the appropriate values for your MCU.
 #define RGB_MATRIX_SLEEP
+#define RGB_MATRIX_VAL_STEP 1
 
 #define WEAR_LEVELING_LOGICAL_SIZE 2048
 #define WEAR_LEVELING_BACKING_SIZE (WEAR_LEVELING_LOGICAL_SIZE * 2)
diff --git a/corne/firmware/info.json b/corne/firmware/info.json
index 0b99dba..bfa51a8 100644
--- a/corne/firmware/info.json
+++ b/corne/firmware/info.json
@@ -123,12 +123,10 @@
 
 
                 {"matrix": [9, 1], "x": 8, "y": 3.7},
-                {"matrix": [9, 2], "x": 9, "y": 3.7}
-                {"matrix": [9, 3], "x": 8, "y": 0.2},
-
-
+                {"matrix": [9, 2], "x": 9, "y": 3.7},
+                {"matrix": [9, 3], "x": 8, "y": 0.2}
             ]
-        },
+        }
     },
     "ws2812": {
         "driver": "pwm",
@@ -140,6 +138,7 @@
         "split": true,
         "split_count": [29, 29],
         "max_brightness": 50,
+        "val_steps": 1,
         "animations": {
             "alphas_mods": true,
             "gradient_up_down": true,
diff --git a/corne/firmware/leftkb/keyboard.json b/corne/firmware/leftkb/keyboard.json
index ed58d8d..aa2ec81 100644
--- a/corne/firmware/leftkb/keyboard.json
+++ b/corne/firmware/leftkb/keyboard.json
@@ -1,4 +1,3 @@
 {
     "keyboard_name": "left"
 }
-s
diff --git a/corne/firmware/readme.md b/corne/firmware/readme.md
index faee5df..875057e 100644
--- a/corne/firmware/readme.md
+++ b/corne/firmware/readme.md
@@ -1 +1,57 @@
-make sh01/m36:via
\ No newline at end of file
+# BCORNE firmware (DH747 / STM32F401)
+
+Keyboard target: `sh01/m36:via`
+
+## Prerequisites
+
+1. Install [QMK CLI 1.2.0](https://docs.qmk.fm/#/cli) (or QMK MSYS on Windows).
+2. Clone vial-qmk at the IFKB-pinned commit:
+
+```bash
+git clone https://github.com/vial-kb/vial-qmk.git
+cd vial-qmk
+git checkout fcd56b119ea8c60142c9a03e997be5a7acba52b7
+make git-submodule
+```
+
+## Install this keyboard port
+
+Copy the contents of this folder into vial-qmk:
+
+```bash
+mkdir -p keyboards/sh01/m36
+cp -r /path/to/kb-layouts/corne/firmware/* keyboards/sh01/m36/
+```
+
+The make target comes from that path: `keyboards/sh01/m36` → `sh01/m36:via`.
+
+## Build
+
+```bash
+make sh01/m36:via
+```
+
+Output: `sh01_m36_via.uf2` in the vial-qmk root.
+
+## Flash
+
+Flash **both halves** with the same UF2 file:
+
+1. Connect the half to USB (left half is the normal USB host side).
+2. Double-tap the reset button (not single tap).
+3. A drive named `IFKB` should appear.
+4. Drag the `.uf2` file onto the drive.
+5. Repeat for the other half.
+
+After flashing, load `../corne.vil` in Vial to restore your keymap.
+
+## RGB brightness dial
+
+Brightness step size is controlled in `config.h`:
+
+```c
+#define RGB_MATRIX_VAL_STEP 1
+```
+
+With `max_brightness: 50` in `info.json`, step `1` gives 51 brightness levels.
+Increase to `2` or `4` if the dial feels too slow.