diff --git a/common/modules/mixly-modules/common/statusbar-serial.js b/common/modules/mixly-modules/common/statusbar-serial.js
index 5ad5458b..79a35b4a 100644
--- a/common/modules/mixly-modules/common/statusbar-serial.js
+++ b/common/modules/mixly-modules/common/statusbar-serial.js
@@ -455,11 +455,15 @@ class StatusBarSerial extends PageBase {
     async open() {
         await this.#serial_.open(this.#config_.baud);
         await this.#serial_.sleep(200);
-        await this.#serial_.setDTRAndRTS(this.#config_.dtr, this.#config_.rts);
+        try {
+            await this.#serial_.setDTRAndRTS(this.#config_.dtr, this.#config_.rts);
+        } catch (error) {
+            Debug.error(error);
+        }
         if (SELECTED_BOARD?.serial?.ctrlCBtn) {
             await this.#serial_.sleep(500);
             await this.#serial_.interrupt();
-            await this.#serial_.sleep(1000);
+            await this.#serial_.sleep(500);
             this.#valueTemp_ = '';
             this.empty();
             this.startRead();
@@ -479,7 +483,11 @@ class StatusBarSerial extends PageBase {
         } else {
             await this.#serial_.open();
             await this.#serial_.sleep(200);
-            await this.#serial_.setDTRAndRTS(this.#config_.dtr, this.#config_.rts);
+            try {
+                await this.#serial_.setDTRAndRTS(this.#config_.dtr, this.#config_.rts);
+            } catch (error) {
+                Debug.error(error);
+            }
             this.startRead();
         }
     }