diff --git a/entry/src/main/ets/service/TrackpadGestureHandler.ets b/entry/src/main/ets/service/TrackpadGestureHandler.ets
index c5f43fd..f0574dc 100644
--- a/entry/src/main/ets/service/TrackpadGestureHandler.ets
+++ b/entry/src/main/ets/service/TrackpadGestureHandler.ets
@@ -258,7 +258,7 @@ export class TrackpadGestureHandler {
         state.lastX = touches[0].x;
         state.lastY = touches[0].y;
         if (Math.abs(dy) > 0) {
-          this.sink.sendMouseHighResScroll(Math.round(-dy * SCROLL_SPEED_FACTOR));
+          this.sink.sendMouseHighResScroll(Math.round(dy * SCROLL_SPEED_FACTOR));
         }
       }
       // 同步第二根手指
@@ -342,6 +342,7 @@ export class TrackpadGestureHandler {
       this.maxCountInGesture = 0;
       this.confirmedMove = false;
       this.confirmedDrag = false;
+      this.confirmedScroll = false;
       this.distanceMoved = 0;
     }
 
@@ -354,6 +355,7 @@ export class TrackpadGestureHandler {
   private resetGestureFlags(): void {
     this.confirmedMove = false;
     this.confirmedDrag = false;
+    this.confirmedScroll = false;
     this.distanceMoved = 0;
     this.isDoubleClickDrag = false;
     this.isPotentialDoubleClick = false;
diff --git a/nativelib/src/main/cpp/usb_ddk_poller.cpp b/nativelib/src/main/cpp/usb_ddk_poller.cpp
index bfa7dd0..f115a65 100644
--- a/nativelib/src/main/cpp/usb_ddk_poller.cpp
+++ b/nativelib/src/main/cpp/usb_ddk_poller.cpp
@@ -514,7 +514,8 @@ static void *ddkPollThread(void *arg) {
 
             if (ret == USB_DDK_IO_FAILED || ret == USB_DDK_INVALID_OP) {
                 // === 智能错误恢复 ===
-                // 瞬态错误保留最后输入状态（不归零），避免中断长按
+                // 错误打断了数据连续性，去重缓存失效：恢复后第一帧必须传递给 JS
+                ctx->lastInputValid = false;
                 if (consecutiveErrors == 3) {
                     OH_LOG_WARN(LOG_APP, "[%{public}s] id=%{public}d 连续 %d 次错误，尝试恢复", LOG_TAG, pollerId, consecutiveErrors);
                 }