diff --git a/CYD-Klipper/src/core/data_setup.cpp b/CYD-Klipper/src/core/data_setup.cpp
index 49713aa..b02b986 100644
--- a/CYD-Klipper/src/core/data_setup.cpp
+++ b/CYD-Klipper/src/core/data_setup.cpp
@@ -4,6 +4,7 @@
 #include "../conf/global_config.h"
 #include <HTTPClient.h>
 #include <ArduinoJson.h>
+#include <esp_task_wdt.h>
 #include "macros_query.h"
 
 const char *printer_state_messages[] = {
@@ -64,7 +65,6 @@ void send_gcode(bool wait, const char *gcode)
 
 void fetch_printer_data()
 {
-    bool frozen = true;
     freeze_request_thread();
     char buff[256] = {};
     sprintf(buff, "http://%s:%d/printer/objects/query?extruder&heater_bed&toolhead&gcode_move&virtual_sdcard&print_stats&webhooks", global_config.klipperHost, global_config.klipperPort);
@@ -83,7 +83,6 @@ void fetch_printer_data()
         int printer_state = printer.state;
         delay(10);
         unfreeze_request_thread();
-        frozen = false;
         freeze_render_thread();
 
         if (status.containsKey("webhooks"))
@@ -196,10 +195,8 @@ void fetch_printer_data()
     {
         klipper_request_consecutive_fail_count++;
         Serial.printf("Failed to fetch printer data: %d\n", httpCode);
-    }
-
-    if (frozen)
         unfreeze_request_thread();
+    }
 }
 
 void data_loop()
@@ -211,6 +208,7 @@ void data_loop()
 }
 
 void data_loop_background(void * param){
+    esp_task_wdt_init(10, true);
     while (true){
         delay(data_update_interval);
         fetch_printer_data();
diff --git a/CYD-Klipper/src/core/screen_driver.cpp b/CYD-Klipper/src/core/screen_driver.cpp
index e419ab5..ae06f78 100644
--- a/CYD-Klipper/src/core/screen_driver.cpp
+++ b/CYD-Klipper/src/core/screen_driver.cpp
@@ -84,7 +84,11 @@ void touchscreen_calibrate(bool force)
 
 void screen_setBrightness(byte brightness)
 {
-    analogWrite(TFT_BL, brightness);
+    // calculate duty, 4095 from 2 ^ 12 - 1
+    uint32_t duty = (4095 / 255) * brightness;
+
+    // write duty to LEDC
+    ledcWrite(0, duty);
 }
 
 void set_screen_brightness()
@@ -213,6 +217,10 @@ void screen_setup()
     lv_init();
 
     tft.init();
+
+    ledcSetup(0, 5000, 12);
+    ledcAttachPin(21, 0);
+
     tft.setRotation(global_config.rotateScreen ? 3 : 1);
     tft.fillScreen(TFT_BLACK);
     set_screen_brightness();