diff --git a/platformio.ini b/platformio.ini
index 70c6e580..80cf2c8b 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -26,7 +26,7 @@ build_flags =
 ;****************************************************************************************
 [debug]
 build_flags =
-    -DDEBUG_EINK
+    ; -DDEBUG_EINK
     ; -DDEBUG_NEOPIXEL
     ; -DDEBUG_PREFERENCES       ; Print preferences to serial on load and save
     ; -DDEBUG_WIFI_EVENTS
@@ -73,7 +73,7 @@ build_flags =
     '-DWIFI_PW_CREDENTIALS=""'
     -D MQTT_BROKER_SERVER="\"192.168.1.145"\"
     -D CO2_GADGET_VERSION="\"0.12."\"
-    -D CO2_GADGET_REV="\"036"\"
+    -D CO2_GADGET_REV="\"050"\"
     -DCACHE_DIR=".pio/build"
     -DBUZZER_PIN=2          ; ESP32 pin GPIO13 connected to piezo buzzer
     -DNEOPIXEL_PIN=26		; Pinnumber for button for down/next and back / exit actions
@@ -395,9 +395,9 @@ build_flags =
 platform = espressif32
 board = esp32dev
 framework = ${common_env_data.framework}
-upload_port = COM4
+upload_port = COM3
 upload_speed = 2000000
-monitor_port = COM4
+monitor_port = COM3
 monitor_speed = 115200
 monitor_filters = ${common_env_data.monitor_filters}
 board_build.partitions = ${common_env_data.board_build.partitions}