diff --git a/CHANGELOG.md b/CHANGELOG.md
index 324e8e0..82ee745 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-10-17 — Touch calib from COM3 logs
+
+- Logged live `Touch phys/logic` on COM3; inverted physical X so bottom matches UI.
+- On-screen `Touch L:x,y` debug; larger 150×60 buttons.
+- Verified Speaker ON/OFF via serial during capture.
+
 ## 2026-10-17 — Fix touch Y (buttons dead zone)
 
 - Root cause: feeding already-landscape 320x240 points while LVGL also applies
diff --git a/firmware/cyd/VERSION.txt b/firmware/cyd/VERSION.txt
index 7730ba3..4d63276 100644
--- a/firmware/cyd/VERSION.txt
+++ b/firmware/cyd/VERSION.txt
@@ -1,5 +1,5 @@
 name: CYD TF card + touch speaker (cyd)
-git: 86064bc
+git: b09fca9
 date: 2026-10-17
 board: ESP32-2432S028R (ILI9341)
 features: TF/SD info, SoftSPI touch, GPIO26 speaker
@@ -12,5 +12,5 @@ offsets:
 sha256:
   bootloader.bin  3D234A7471F67B013686DABD4DEE7C1FA915C9928463616A94BC9297ACF1ABF8
   boot_app0.bin   F94C5D786A7A8FAB06AC5D10E33BF37711A6697636DC037559EA19CC410A17F0
-  firmware.bin    142CB38A32343602F699F1CE8CE3BB699D6F3AFD03EA38A9B961EB2897B38797
+  firmware.bin    0D561A81D52B8EF52DC8597FAE6952142D267B4A6B9BE6FE9979EF5698003F56
   partitions.bin  148B959CBFF1C38AA8E1D5C0BA9D612C54997B945E56A63F41223EEF650653A1
diff --git a/firmware/cyd/firmware.bin b/firmware/cyd/firmware.bin
index 53402eb..87b8922 100644
Binary files a/firmware/cyd/firmware.bin and b/firmware/cyd/firmware.bin differ
diff --git a/src/ui.cpp b/src/ui.cpp
index 3a1740b..741d2a9 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -118,10 +118,10 @@ void ui_create() {
   lv_obj_set_style_bg_color(bar_usage, lv_color_hex(0x263238), 0);
   lv_obj_set_style_bg_color(bar_usage, lv_color_hex(0x29B6F6), LV_PART_INDICATOR);
 
-  // 底部两个触控按钮
+  // 底部两个大按钮（加大命中区）
   lv_obj_t *row_btns = lv_obj_create(col);
   lv_obj_set_width(row_btns, LV_PCT(100));
-  lv_obj_set_height(row_btns, 52);
+  lv_obj_set_height(row_btns, 64);
   lv_obj_set_style_bg_opa(row_btns, LV_OPA_TRANSP, 0);
   lv_obj_set_style_border_width(row_btns, 0, 0);
   lv_obj_set_style_pad_all(row_btns, 0, 0);
@@ -131,7 +131,7 @@ void ui_create() {
   lv_obj_clear_flag(row_btns, LV_OBJ_FLAG_SCROLLABLE);
 
   btn_speaker = lv_button_create(row_btns);
-  lv_obj_set_size(btn_speaker, 148, 50);
+  lv_obj_set_size(btn_speaker, 150, 60);
   lv_obj_set_style_radius(btn_speaker, 8, 0);
   lv_obj_add_flag(btn_speaker, LV_OBJ_FLAG_CLICKABLE);
   lv_obj_add_event_cb(btn_speaker, on_speaker_clicked, LV_EVENT_CLICKED, nullptr);
@@ -141,7 +141,7 @@ void ui_create() {
   lv_obj_center(lbl_speaker);
 
   btn_play = lv_button_create(row_btns);
-  lv_obj_set_size(btn_play, 148, 50);
+  lv_obj_set_size(btn_play, 150, 60);
   lv_obj_set_style_radius(btn_play, 8, 0);
   lv_obj_add_flag(btn_play, LV_OBJ_FLAG_CLICKABLE);
   lv_obj_add_event_cb(btn_play, on_play_clicked, LV_EVENT_CLICKED, nullptr);