diff --git a/miniprogram/services/ble/commands.js b/miniprogram/services/ble/commands.js
index 79c947d..3a41d25 100644
--- a/miniprogram/services/ble/commands.js
+++ b/miniprogram/services/ble/commands.js
@@ -72,6 +72,7 @@ function writeRawCommand(bytes) {
       reject({ error_code: 0xFF, error_msg: 'command characteristic not found' })
       return
     }
+    console.log('[BLE] FFE1 发送', bytes.length + '字节', '| hex:', protocol.bytesToHex(bytes))
     wx.writeBLECharacteristicValue({
       deviceId: connection.getDeviceId(),
       serviceId: chars.command.serviceId,
@@ -80,7 +81,8 @@ function writeRawCommand(bytes) {
       success: function () {
         resolve({ message: 'success', bytes: bytes })
       },
-      fail: function () {
+      fail: function (err) {
+        console.error('[BLE] FFE1 发送失败', err)
         reject({ error_code: 0x0C, error_msg: 'ERR_BLE_DISCONNECTED' })
       }
     })