diff --git a/common/modules/mixly-modules/web/burn-upload.js b/common/modules/mixly-modules/web/burn-upload.js
index 74dc0d36..1b68670f 100644
--- a/common/modules/mixly-modules/web/burn-upload.js
+++ b/common/modules/mixly-modules/web/burn-upload.js
@@ -669,12 +669,6 @@ BU.uploadWithAmpy = (portName) => {
     const mainWorkspace = Workspace.getMain();
     const editor = mainWorkspace.getEditorsManager().getActive();
     const port = Serial.getPort(portName);
-    let useBuffer = true, dataLength = 256;
-    if (port.constructor.name === 'USBDevice') {
-        dataLength = 64;
-    } else if (port.constructor.name === 'HIDDevice') {
-        dataLength = 31;
-    }
     const layerNum = layer.open({
         type: 1,
         title: Msg.Lang['shell.uploading'] + '...',
@@ -685,7 +679,7 @@ BU.uploadWithAmpy = (portName) => {
         success: async function (layero, index) {
             $('#mixly-loader-btn').hide();
             const serial = new Serial(portName);
-            const ampy = new Ampy(serial, useBuffer, dataLength);
+            const ampy = new Ampy(serial);
             const code = editor.getCode();
             let closePromise = Promise.resolve();
             if (statusBarSerial) {
diff --git a/common/modules/mixly-modules/web/hid.js b/common/modules/mixly-modules/web/hid.js
index b07896df..b97bfced 100644
--- a/common/modules/mixly-modules/web/hid.js
+++ b/common/modules/mixly-modules/web/hid.js
@@ -103,6 +103,7 @@ class WebHID extends Serial {
     #reader_ = null;
     #writer_ = null;
     #stringTemp_ = '';
+    #dataLength_ = 31;
     constructor(port) {
         super(port);
     }
@@ -133,7 +134,7 @@ class WebHID extends Serial {
             const portsName = Serial.getCurrentPortsName();
             const currentPortName = this.getPortName();
             if (!portsName.includes(currentPortName)) {
-                reject('无可用设备');
+                reject('no device available');
                 return;
             }
             if (this.isOpened()) {
@@ -176,20 +177,20 @@ class WebHID extends Serial {
     }
 
     async sendBuffer(buffer) {
-        return new Promise((resolve, reject) => {
-            if (buffer instanceof Uint8Array) {
-                let temp = new Uint8Array(buffer.length + 1);
-                temp[0] = buffer.length;
-                temp.set(buffer, 1);
-                buffer = temp;
-            } else {
-                buffer.unshift(buffer.length);
-                buffer = new Uint8Array(buffer);
-            }
-            this.#device_.sendReport(0, buffer)
-                .then(resolve)
-                .catch(reject);
-        });
+        if (buffer.constructor.name !== 'Uint8Array') {
+            buffer = new Uint8Array(buffer);
+        }
+        const len = Math.ceil(buffer.length / this.#dataLength_);
+        for (let i = 0; i < len; i++) {
+            const start = i * this.#dataLength_;
+            const end = Math.min((i + 1) * this.#dataLength_, buffer.length);
+            const writeBuffer = buffer.slice(start, end);
+            let temp = new Uint8Array(end - start + 1);
+            temp[0] = writeBuffer.length;
+            temp.set(writeBuffer, 1);
+            await this.#device_.sendReport(0, temp);
+            await this.sleep(10);
+        }
     }
 
     async setDTRAndRTS(dtr, rts) {
diff --git a/common/modules/mixly-modules/web/serialport.js b/common/modules/mixly-modules/web/serialport.js
index 5bdf373c..c8c0fcb2 100644
--- a/common/modules/mixly-modules/web/serialport.js
+++ b/common/modules/mixly-modules/web/serialport.js
@@ -132,7 +132,7 @@ class WebSerialPort extends Serial {
             const portsName = Serial.getCurrentPortsName();
             const currentPortName = this.getPortName();
             if (!portsName.includes(currentPortName)) {
-                reject('无可用串口');
+                reject('no device available');
                 return;
             }
             if (this.isOpened()) {
@@ -200,22 +200,18 @@ class WebSerialPort extends Serial {
     }
 
     async sendBuffer(buffer) {
-        return new Promise((resolve, reject) => {
-            const { writable } = this.#serialport_;
-            const writer = writable.getWriter();
-            if (!(buffer instanceof Uint8Array)) {
-                buffer = new Uint8Array(buffer);
-            }
-            writer.write(buffer)
-                .then(() => {
-                    writer.releaseLock();
-                    resolve();
-                })
-                .catch(() => {
-                    writer.releaseLock();
-                    reject();
-                });
-        });
+        const { writable } = this.#serialport_;
+        const writer = writable.getWriter();
+        if (buffer.constructor.name !== 'Uint8Array') {
+            buffer = new Uint8Array(buffer);
+        }
+        try {
+            await writer.write(buffer);
+            writer.releaseLock();
+        } catch (error) {
+            writer.releaseLock();
+            throw Error(error);
+        }
     }
 
     async setDTRAndRTS(dtr, rts) {
diff --git a/common/modules/mixly-modules/web/usb-mini.js b/common/modules/mixly-modules/web/usb-mini.js
index 2df0c679..429c1a60 100644
--- a/common/modules/mixly-modules/web/usb-mini.js
+++ b/common/modules/mixly-modules/web/usb-mini.js
@@ -109,6 +109,7 @@ class USBMini extends Serial {
     #endpointIn_ = null;
     #endpointOut_ = null;
     #interfaceNumber_ = 0;
+    #dataLength_ = 64;
     constructor(port) {
         super(port);
     }
@@ -178,7 +179,7 @@ class USBMini extends Serial {
         const portsName = Serial.getCurrentPortsName();
         const currentPortName = this.getPortName();
         if (!portsName.includes(currentPortName)) {
-            throw new Error('无可用串口');
+            throw new Error('no device available');
         }
         if (this.isOpened()) {
             return;
@@ -237,11 +238,17 @@ class USBMini extends Serial {
     }
 
     async sendBuffer(buffer) {
-        if (typeof buffer.unshift === 'function') {
-            // buffer.unshift(buffer.length);
-            buffer = new Uint8Array(buffer).buffer;
+        if (buffer.constructor.name !== 'Uint8Array') {
+            buffer = new Uint8Array(buffer);
+        }
+        const len = Math.ceil(buffer.length / this.#dataLength_);
+        for (let i = 0; i < len; i++) {
+            const start = i * this.#dataLength_;
+            const end = Math.min((i + 1) * this.#dataLength_, buffer.length);
+            const writeBuffer = buffer.slice(start, end);
+            await this.#write_(writeBuffer)
+            await this.sleep(5);
         }
-        return this.#write_(buffer);
     }
 
     async setDTRAndRTS(dtr, rts) {
diff --git a/common/modules/mixly-modules/web/usb.js b/common/modules/mixly-modules/web/usb.js
index 5bc13e0b..85f0faef 100644
--- a/common/modules/mixly-modules/web/usb.js
+++ b/common/modules/mixly-modules/web/usb.js
@@ -145,7 +145,7 @@ class USB extends Serial {
         const portsName = Serial.getCurrentPortsName();
         const currentPortName = this.getPortName();
         if (!portsName.includes(currentPortName)) {
-            throw new Error('无可用串口');
+            throw new Error('no device available');
         }
         if (this.isOpened()) {
             return;
@@ -192,11 +192,11 @@ class USB extends Serial {
     }
 
     async sendBuffer(buffer) {
-        if (typeof buffer.unshift === 'function') {
+        if (buffer.constructor.name !== 'Uint8Array') {
             buffer.unshift(buffer.length);
-            buffer = new Uint8Array(buffer).buffer;
+            buffer = new Uint8Array(buffer);
         }
-        return this.#dapLink_.send(132, buffer);
+        await this.#dapLink_.send(132, buffer);
     }
 
     async setDTRAndRTS(dtr, rts) {