diff --git a/build b/build
index ee977b5..4699eb3 100644
--- a/build
+++ b/build
@@ -1 +1 @@
-115
+116
diff --git a/hdlcio.c b/hdlcio.c
index 08c14f0..4c3d9d5 100644
--- a/hdlcio.c
+++ b/hdlcio.c
@@ -356,7 +356,7 @@ if (!SetCommState(hSerial, &dcbSerialParams))
 }
 
 CommTimeouts.ReadIntervalTimeout = 5;
-CommTimeouts.ReadTotalTimeoutConstant = 7000;
+CommTimeouts.ReadTotalTimeoutConstant = 30000;
 CommTimeouts.ReadTotalTimeoutMultiplier = 0;
 CommTimeouts.WriteTotalTimeoutConstant = 0;
 CommTimeouts.WriteTotalTimeoutMultiplier = 0;
diff --git a/winbuild/Release/balong_flash.exe b/winbuild/Release/balong_flash.exe
index 34606e2..b336c69 100644
Binary files a/winbuild/Release/balong_flash.exe and b/winbuild/Release/balong_flash.exe differ