diff --git a/src/camera.c b/src/camera.c
index 6804619..adb6909 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -21,10 +21,12 @@ uint8_t camera_setting_reg_menu[CAMERA_SETTING_NUM];
 uint8_t camera_profile_menu;
 
 uint8_t video_format = VDO_FMT_720P60;
-uint8_t camRatio = 0;
+uint8_t camRatio = 0; // 0->16:9   1->4:3
 uint8_t camMenuStatus = CAM_STATUS_IDLE;
 uint8_t reset_isp_need = 0;
 
+uint8_t camera_is_3v3 = 0;
+
 void camera_type_detect(void) {
     camera_type = CAMERA_TYPE_UNKNOW;
 
@@ -52,7 +54,9 @@ void camera_ratio_detect(void) {
         break;
 #ifdef USE_TP9950
     case CAMERA_TYPE_OUTDATED:
-        camRatio = 1;
+        camRatio = I2C_Read8_Wait(10, ADDR_EEPROM, EEP_ADDR_CAM_RATIO);
+        if (camRatio > 1)
+            camRatio = 1;
         break;
 #endif
     default:
@@ -542,19 +546,15 @@ void camera_menu_init(void) {
 
     memset(osd_buf, 0x20, sizeof(osd_buf));
     disp_mode = DISPLAY_CMS;
-    if (camera_type == CAMERA_TYPE_UNKNOW ||
-        camera_type == CAMERA_TYPE_OUTDATED)
-        camera_button_enter;
-    else {
-        for (i = 0; i <= 15; i++) {
-            osd_buf_p = osd_buf[i] + osd_menu_offset + 3;
-            strcpy(osd_buf_p, cam_menu_string[i]);
-        }
-        camera_profile_menu = camera_profile_eep;
-        camera_setting_reg_menu_update();
-        camera_menu_draw_bracket();
-        camera_menu_draw_value();
+
+    for (i = 0; i <= 15; i++) {
+        osd_buf_p = osd_buf[i] + osd_menu_offset + 3;
+        strcpy(osd_buf_p, cam_menu_string[i]);
     }
+    camera_profile_menu = camera_profile_eep;
+    camera_setting_reg_menu_update();
+    camera_menu_draw_bracket();
+    camera_menu_draw_value();
 }
 void camera_menu_show_repower(void) {
     memset(osd_buf, 0x20, sizeof(osd_buf));
@@ -876,3 +876,42 @@ uint8_t camera_status_update(uint8_t op) {
     return ret;
 }
 #endif
+
+void camera_select_menu_init(void) {
+    const char *cam_select_menu_string[] = {
+        "> ECO CAMERA MENU",
+        "  LUX CAMERA MENU",
+        "  VTX RATIO FOR LUX CAMERA  <4:3> ",
+        "  EXIT",
+    };
+    char *osd_buf_p;
+    uint8_t i;
+
+    for (i = 0; i <= CAM_SELECT_EXIT; i++) {
+        osd_buf_p = osd_buf[i] + osd_menu_offset;
+        strcpy(osd_buf_p, cam_select_menu_string[i]);
+    }
+    camera_select_menu_ratio_upate();
+}
+
+void camera_select_menu_cursor_update(uint8_t index) {
+    uint8_t i;
+    for (i = 0; i <= CAM_SELECT_EXIT; i++) {
+        if (i == index)
+            osd_buf[i][osd_menu_offset] = '>';
+        else
+            osd_buf[i][osd_menu_offset] = ' ';
+    }
+}
+
+void camera_select_menu_ratio_upate() {
+    if (camRatio == 1)
+        strcpy(osd_buf[2] + osd_menu_offset + 28, "<4:3> ");
+    else
+        strcpy(osd_buf[2] + osd_menu_offset + 28, "<16:9>");
+}
+
+void camera_menu_mode_exit_note() {
+    const char note_string[] = "LEFT MOVE THROTTLE TO EXIT CAMERA MENU";
+    strcpy(osd_buf[15] + 5, note_string);
+}
\ No newline at end of file
diff --git a/src/camera.h b/src/camera.h
index d4409ac..ba70b68 100644
--- a/src/camera.h
+++ b/src/camera.h
@@ -15,12 +15,14 @@
 #define CAMERA_SETTING_NUM 16
 #define CAMERA_PROFILE_NUM 3
 
-#define camera_button_enter WriteReg(0, 0x14, 0x32)
-#define camera_button_right WriteReg(0, 0x14, 0x58)
-#define camera_button_down  WriteReg(0, 0x14, 0x64)
-#define camera_button_left  WriteReg(0, 0x14, 0x3F)
-#define camera_button_up    WriteReg(0, 0x14, 0x4B)
-#define camera_button_mid   WriteReg(0, 0x14, 0x00)
+extern uint8_t camera_is_3v3;
+
+#define camera_button_enter WriteReg(0, 0x14, camera_is_3v3 ? 50 : 65)
+#define camera_button_right WriteReg(0, 0x14, camera_is_3v3 ? 88 : 89)
+#define camera_button_down  WriteReg(0, 0x14, camera_is_3v3 ? 100 : 100)
+#define camera_button_left  WriteReg(0, 0x14, camera_is_3v3 ? 63 : 72)
+#define camera_button_up    WriteReg(0, 0x14, camera_is_3v3 ? 75 : 80)
+#define camera_button_mid   WriteReg(0, 0x14, camera_is_3v3 ? 0 : 44)
 
 typedef enum {
     CAMERA_MFR_UNKNOW,
@@ -81,9 +83,21 @@ typedef enum {
     CAM_STATUS_END,
 } camera_status_e;
 
+typedef enum {
+    CAM_SELECT_RUNCAM_ECO = 0,
+    CAM_SELECT_RUNCAM_LUX,
+
+    CAM_SELECT_RATIO,
+    CAM_SELECT_EXIT,
+} camera_select_e;
+
 void camera_init();
 uint8_t camera_status_update(uint8_t op);
 void camera_menu_init(void);
+void camera_select_menu_init(void);
+void camera_select_menu_cursor_update(uint8_t index);
+void camera_select_menu_ratio_upate();
+void camera_menu_mode_exit_note();
 
 extern uint8_t camRatio;
 extern uint8_t video_format;
diff --git a/src/hardware.h b/src/hardware.h
index 30c8e7a..a17c44d 100644
--- a/src/hardware.h
+++ b/src/hardware.h
@@ -37,6 +37,7 @@ typedef enum {
 #define EEP_ADDR_BAUDRATE     0x8B
 #define EEP_ADDR_LOWBAND_LOCK 0x8C
 #define EEP_ADDR_SHORTCUT     0x8D
+#define EEP_ADDR_CAM_RATIO    0x8E
 #define EEP_ADDR_TAB3         0xA0 // 0xA0 - 0xBF
 #define EEP_ADDR_DCOC1        0xC0 // 0xC0 - 0xC4
 #define EEP_ADDR_DCOC_EN      0xC0
diff --git a/src/msp_displayport.c b/src/msp_displayport.c
index b8f7b12..23911f3 100644
--- a/src/msp_displayport.c
+++ b/src/msp_displayport.c
@@ -69,6 +69,10 @@ uint8_t mspVtxLock = 0;
 uint8_t init_table_done = 0;
 uint8_t init_table_unsupported = 0;
 
+#ifdef USE_TP9950
+uint16_t cam_menu_timeout_sec = 0;
+#endif
+
 uint8_t crc8tab[256] = {
     0x00, 0xD5, 0x7F, 0xAA, 0xFE, 0x2B, 0x81, 0x54, 0x29, 0xFC, 0x56, 0x83, 0xD7, 0x02, 0xA8, 0x7D,
     0x52, 0x87, 0x2D, 0xF8, 0xAC, 0x79, 0xD3, 0x06, 0x7B, 0xAE, 0x04, 0xD1, 0x85, 0x50, 0xFA, 0x2F,
@@ -1321,7 +1325,10 @@ void update_cms_menu(uint16_t roll, uint16_t pitch, uint16_t yaw, uint16_t throt
     static uint8_t last_mid = 1;
     static uint8_t cms_cnt;
 
+    static uint8_t camera_selected = 0;
+
     uint8_t VirtualBtn = BTN_INVALID;
+    static uint8_t VirtualBtn_last = BTN_INVALID;
 
     uint8_t IS_HI_yaw = IS_HI(yaw);
     uint8_t IS_LO_yaw = IS_LO(yaw);
@@ -1681,8 +1688,59 @@ void update_cms_menu(uint16_t roll, uint16_t pitch, uint16_t yaw, uint16_t throt
             cms_cnt = 0;
             disp_mode = DISPLAY_CMS;
             clear_screen();
-            camera_menu_init();
-            cms_state = CMS_CAM;
+            if (camera_type == CAMERA_TYPE_UNKNOW ||
+                camera_type == CAMERA_TYPE_OUTDATED) {
+                camera_select_menu_init();
+                camera_selected = 0;
+                cms_state = CMS_SELECT_CAM;
+            } else {
+                camera_menu_init();
+                cms_state = CMS_CAM;
+            }
+        }
+        break;
+    }
+
+    case CMS_SELECT_CAM: {
+        if (last_mid) {
+            if (VirtualBtn == BTN_UP) {
+                camera_selected--;
+                if (camera_selected > CAM_SELECT_EXIT)
+                    camera_selected = CAM_SELECT_EXIT;
+                camera_select_menu_cursor_update(camera_selected);
+            } else if (VirtualBtn == BTN_DOWN) {
+                camera_selected++;
+                if (camera_selected > CAM_SELECT_EXIT)
+                    camera_selected = CAM_SELECT_RUNCAM_ECO;
+                camera_select_menu_cursor_update(camera_selected);
+            } else if (VirtualBtn == BTN_LEFT) {
+                if (camera_selected == CAM_SELECT_RATIO) {
+                    camRatio = 1 - camRatio;
+                    camera_select_menu_ratio_upate();
+                    I2C_Write8_Wait(10, ADDR_EEPROM, EEP_ADDR_CAM_RATIO, camRatio);
+                }
+            } else if (VirtualBtn == BTN_RIGHT) {
+                if (camera_selected == CAM_SELECT_RATIO) {
+                    camRatio = 1 - camRatio;
+                    camera_select_menu_ratio_upate();
+                    I2C_Write8_Wait(10, ADDR_EEPROM, EEP_ADDR_CAM_RATIO, camRatio);
+                } else {
+                    camera_is_3v3 = (camera_selected == CAM_SELECT_RUNCAM_ECO);
+                    clear_screen();
+                    if (camera_selected == CAM_SELECT_EXIT) {
+                        disp_mode = DISPLAY_OSD;
+                        cms_state = CMS_OSD;
+                        msp_tx_cnt = 0;
+                    } else {
+                        camera_button_enter;
+                        camera_menu_mode_exit_note();
+#ifdef USE_TP9950
+                        cam_menu_timeout_sec = seconds;
+#endif
+                        cms_state = CMS_CAM;
+                    }
+                }
+            }
         }
         break;
     }
@@ -1710,7 +1768,25 @@ void update_cms_menu(uint16_t roll, uint16_t pitch, uint16_t yaw, uint16_t throt
         break;
     }
     } // switch
+
     last_mid = mid;
+
+#ifdef USE_TP9950
+    if (cms_state == CMS_CAM && (camera_type == CAMERA_TYPE_UNKNOW || camera_type == CAMERA_TYPE_OUTDATED)) {
+        if (VirtualBtn_last == VirtualBtn) {
+            if (seconds - cam_menu_timeout_sec >= 60) {
+                // exit cam menu
+                disp_mode = DISPLAY_OSD;
+                cms_state = CMS_OSD;
+                fc_init();
+                msp_tx_cnt = 0;
+            }
+        } else {
+            cam_menu_timeout_sec = seconds;
+        }
+    }
+    VirtualBtn_last = VirtualBtn;
+#endif
 }
 
 void vtx_menu_init() {
diff --git a/src/msp_displayport.h b/src/msp_displayport.h
index 1a40bf3..cf79f8d 100644
--- a/src/msp_displayport.h
+++ b/src/msp_displayport.h
@@ -96,7 +96,8 @@ typedef enum {
     CMS_CONFIG_NORMAL_POWER,
     CMS_ENTER_CAM,
     CMS_VTX_MENU,
-    CMS_CAM
+    CMS_CAM,
+    CMS_SELECT_CAM,
 } cms_state_e;
 
 typedef enum {