diff --git a/SD_ROOT/wz_mini/lib/libcallback_t20.so b/SD_ROOT/wz_mini/lib/libcallback_t20.so
new file mode 100755
index 0000000..d91b61b
Binary files /dev/null and b/SD_ROOT/wz_mini/lib/libcallback_t20.so differ
diff --git a/SD_ROOT/wz_mini/usr/bin/iCamera b/SD_ROOT/wz_mini/usr/bin/iCamera
index 595aae1..ecd7220 100755
--- a/SD_ROOT/wz_mini/usr/bin/iCamera
+++ b/SD_ROOT/wz_mini/usr/bin/iCamera
@@ -6,4 +6,9 @@ echo "inject callback library and run"
 
 export LD_LIBRARY_PATH='/thirdlib:/system/lib:/opt/wz_mini/lib'
 
-LD_PRELOAD='libcallback.so:libtinyalsa.so.2.0.0' /system/bin/iCamera
+if [ -f /opt/wz_mini/tmp/.T20 ]; then
+	echo "libcallback for T20"
+	LD_PRELOAD='libcallback_t20.so:libtinyalsa.so.2.0.0' /system/bin/iCamera
+else
+	LD_PRELOAD='libcallback.so:libtinyalsa.so.2.0.0' /system/bin/iCamera
+fi