diff --git a/build.gradle b/build.gradle
index 5bcef85..e5ec61c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,8 +10,8 @@ buildscript {
 }
 
 subprojects {
-    version '0.9.0-SNAPSHOT'
-
+//    version '0.9.0-SNAPSHOT'
+    version '0.9.1'
     apply plugin: 'java'
 
     sourceCompatibility = 1.7
@@ -36,6 +36,12 @@ subprojects {
         options.encoding = 'utf-8'
         //enable incremental compilation
     }
+    javadoc {
+        options {
+            locale = 'en_US'
+            encoding = 'UTF-8'
+        }
+    }
 }
 
 project(':device-api') {
@@ -59,10 +65,6 @@ project(':device-api') {
     group = "com.github.cosysoft"
     archivesBaseName = "device-api"
 
-    javadoc {
-        options.encoding = 'utf-8'
-    }
-
     task javadocJar(type: Jar, dependsOn: javadoc) {
         classifier = 'javadoc'
         from 'build/docs/javadoc'
diff --git a/device-api/src/main/java/com/github/cosysoft/device/android/xiaomi/MIDeviceUtility.java b/device-api/src/main/java/com/github/cosysoft/device/android/xiaomi/MIDeviceUtility.java
index 04dcfc8..446d02f 100644
--- a/device-api/src/main/java/com/github/cosysoft/device/android/xiaomi/MIDeviceUtility.java
+++ b/device-api/src/main/java/com/github/cosysoft/device/android/xiaomi/MIDeviceUtility.java
@@ -158,7 +158,7 @@ public Void call() throws Exception {
 				while ((System.currentTimeMillis() - start) < milliseconds) {
 					Thread.sleep(500);
 					if (miDevice.isConfirm() && count++ > 1) {
-						logger.debug("确定安装");
+						logger.debug("Confirm");
 						miDevice.crossConfirmView();
 						break;
 					} else {
@@ -167,9 +167,9 @@ public Void call() throws Exception {
 				}
 
 			} catch (Exception e) {
-				// logger.info("InstallHelperTask 超时后任务暂停", e);
+				// logger.info("InstallHelperTask Timeout", e);
 			} finally {
-				logger.debug("fishined");
+				logger.debug("finished");
 				finished = true;
 			}
 			return null;
diff --git a/device-api/src/main/java/com/github/cosysoft/device/exception/DeviceUnlockException.java b/device-api/src/main/java/com/github/cosysoft/device/exception/DeviceUnlockException.java
index 6495dfd..e5b0909 100644
--- a/device-api/src/main/java/com/github/cosysoft/device/exception/DeviceUnlockException.java
+++ b/device-api/src/main/java/com/github/cosysoft/device/exception/DeviceUnlockException.java
@@ -10,7 +10,6 @@ public class DeviceUnlockException extends NestedException {
 
 	public DeviceUnlockException(String msg) {
 		super(msg);
-		// TODO Auto-generated constructor stub
 	}
 
 	/**
diff --git a/device-api/src/test/java/com/github/cosysoft/device/android/test/XiaomiInstallerTest.java b/device-api/src/test/java/com/github/cosysoft/device/android/test/XiaomiInstallerTest.java
index 31620e1..c280360 100644
--- a/device-api/src/test/java/com/github/cosysoft/device/android/test/XiaomiInstallerTest.java
+++ b/device-api/src/test/java/com/github/cosysoft/device/android/test/XiaomiInstallerTest.java
@@ -30,7 +30,6 @@ public void testXiaomiInstall() {
 		for (AndroidDevice device : getDevices()) {
 			MIDeviceUtility.testInstall(device);
 			MIDeviceUtility.install(device, app);
-			// s
 			// device.install(app);
 		}
 	}