diff --git a/win/setup/scanner/Readme.txt b/win/setup/scanner/Readme.txt
index 9d1d412..5d006f1 100644
--- a/win/setup/scanner/Readme.txt
+++ b/win/setup/scanner/Readme.txt
@@ -1,6 +1,7 @@
 V4.52.24005
 1、多流、黑白、颜色自动识别开启时开放锐化与模糊功能；
 2、CIS原图检测时关闭脏污检测功能；
+3、解决多个文件同时拖拽到app，如果包含不支持打开的文件，不会提示错误的问题；
 
 V4.52.24004
 1、解决保留双张后继续扫描后异常错误全都报扫描完成，安卓设备不提示双张错误的问题；BUG-876
diff --git a/win/x86/Release/production-tool/华高+G300+60ppm.json b/win/x86/Release/production-tool/华高+G300+60ppm.json
index 2126478..4663a26 100644
--- a/win/x86/Release/production-tool/华高+G300+60ppm.json
+++ b/win/x86/Release/production-tool/华高+G300+60ppm.json
@@ -5,7 +5,7 @@
 		"vid-to": 12402,
 		"pid-to": 768,
 		"sleep-time": 0,
-		"speed-mode": 70,
+		"speed-mode": 60,
 		"device-model": "",
 		"cpu-size": 3,
 		"disk-size": 5
diff --git a/win/x86/Release/production-tool/华高+G400+60ppm.json b/win/x86/Release/production-tool/华高+G400+60ppm.json
index 920b82f..8a4092d 100644
--- a/win/x86/Release/production-tool/华高+G400+60ppm.json
+++ b/win/x86/Release/production-tool/华高+G400+60ppm.json
@@ -5,7 +5,7 @@
 		"vid-to": 12402,
 		"pid-to": 1081,
 		"sleep-time": 0,
-		"speed-mode": 70,
+		"speed-mode": 60,
 		"device-model": "",
 		"cpu-size": 3,
 		"disk-size": 24