diff --git a/common/modules/mixly-modules/web/usb-mini.js b/common/modules/mixly-modules/web/usb-mini.js
index a1ff2be5..ef3ee28e 100644
--- a/common/modules/mixly-modules/web/usb-mini.js
+++ b/common/modules/mixly-modules/web/usb-mini.js
@@ -212,9 +212,10 @@ class USBMini extends Serial {
                 this.#endpointOut_ = endpoint.endpointNumber;
             }
         }
+        await this.#device_.claimInterface(0);
         await this.#device_.claimInterface(this.#interfaceNumber_);
-        await this.setBaudRate(baud);
         super.open(baud);
+        await this.setBaudRate(baud);
         this.onOpen();
         this.#addEventsListener_();
     }
@@ -237,6 +238,28 @@ class USBMini extends Serial {
         if (!this.isOpened() || this.getRawBaudRate() === baud) {
             return;
         }
+        const dwDTERate = new Uint8Array([
+            baud & 0xFF,
+            (baud >> 8) & 0xFF,
+            (baud >> 16) & 0xFF,
+            (baud >> 24) & 0xFF
+        ]);
+        const bCharFormat = 0x00;
+        const bParityType = 0x00;
+        const bDataBits = 0x08;
+        const lineCoding = new Uint8Array([
+            ...dwDTERate,
+            bCharFormat,
+            bParityType,
+            bDataBits
+        ]);
+        await this.#device_.controlTransferOut({
+            requestType: 'class',
+            recipient: 'interface',
+            request: 0x20,
+            value: 0x0000,
+            index: 0
+        }, lineCoding);
         await super.setBaudRate(baud);
     }