diff --git a/README.md b/README.md
index d05c6d4..f54c0ec 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,10 @@ allprojects {
 }
 
 dependencies {
-        implementation 'com.licheedev:android-serialport:2.1.3'
+        // 传统4KB内存页面版本
+        implementation 'com.licheedev:android-serialport:2.1.4'
+        // 适配16KB页面版本，https://developer.android.google.cn/guide/practices/page-sizes?hl=zh-cn
+        implementation 'com.licheedev:android-serialport:2.1.5'
 }
 ```
 
diff --git a/build.gradle b/build.gradle
index 68e717a..a47094e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:4.2.2'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
         classpath 'org.jetbrains.dokka:dokka-gradle-plugin:1.4.32'
@@ -32,6 +32,6 @@ ext {
     minSdkVersion = 8
     targetSdkVersion = 29
 
-    versionCode = 2
-    versionName = "2.1.3"
+    versionCode = 3
+    versionName = "2.1.5"
 }
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index e95cacb..3ed5e54 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Aug 26 17:00:59 CST 2020
+#Fri Sep 06 10:04:58 CST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/sample/build.gradle b/sample/build.gradle
index f2834ca..00bc09a 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -27,6 +27,6 @@ dependencies {
     })
     implementation 'androidx.appcompat:appcompat:1.2.0'
     testImplementation 'junit:junit:4.13'
-    implementation project(':serialport')
-    //implementation 'com.licheedev:android-serialport:2.1.3'
+    //implementation project(':serialport')
+    implementation 'com.licheedev:android-serialport:2.1.5'
 }
diff --git a/serialport/CMakeLists.txt b/serialport/CMakeLists.txt
index f16cb32..80def00 100644
--- a/serialport/CMakeLists.txt
+++ b/serialport/CMakeLists.txt
@@ -2,7 +2,7 @@
 # This ensures that a certain set of CMake features is available to
 # your build.
 
-cmake_minimum_required(VERSION 3.4.1)
+cmake_minimum_required(VERSION 3.18.1)
 
 # Specifies a library name, specifies whether the library is STATIC or
 # SHARED, and provides relative paths to the source code. You can
@@ -35,4 +35,10 @@ target_link_libraries( # Specifies the target library.
 
                        # Links the target library to the log library
                        # included in the NDK.
-                       ${log-lib} )
\ No newline at end of file
+                       ${log-lib} )
+
+target_link_options(
+        serial_port
+        PRIVATE
+        "-Wl,-z,max-page-size=16384"
+)
\ No newline at end of file
diff --git a/serialport/build.gradle b/serialport/build.gradle
index f9f8f28..b5a36b4 100644
--- a/serialport/build.gradle
+++ b/serialport/build.gradle
@@ -21,6 +21,12 @@ android {
     externalNativeBuild {
         cmake {
             path 'CMakeLists.txt'
+            version "3.18.1"
+        }
+    }
+    packagingOptions {
+        jniLibs {
+            useLegacyPackaging true
         }
     }
 }
diff --git a/serialport/src/main/java/android/serialport/SerialPort.java b/serialport/src/main/java/android/serialport/SerialPort.java
index 8d4b53d..a07b705 100644
--- a/serialport/src/main/java/android/serialport/SerialPort.java
+++ b/serialport/src/main/java/android/serialport/SerialPort.java
@@ -82,8 +82,10 @@ public static String getSuPath() {
      * @throws SecurityException
      * @throws IOException
      */
-    public SerialPort(@NonNull File device, int baudrate, int dataBits, int parity, int stopBits,
-        int flags) throws SecurityException, IOException {
+    public SerialPort(
+        @NonNull File device, int baudrate, int dataBits, int parity, int stopBits,
+        int flags
+    ) throws SecurityException, IOException {
 
         this.device = device;
         this.baudrate = baudrate;
@@ -92,6 +94,10 @@ public SerialPort(@NonNull File device, int baudrate, int dataBits, int parity,
         this.stopBits = stopBits;
         this.flags = flags;
 
+        if (!device.exists()) {
+            throw new IOException("SerialPort(" + device.getAbsolutePath() + ") not exists");
+        }
+
         /* Check access permission */
         if (!device.canRead() || !device.canWrite()) {
             try {
@@ -112,7 +118,9 @@ public SerialPort(@NonNull File device, int baudrate, int dataBits, int parity,
         mFd = open(device.getAbsolutePath(), baudrate, dataBits, parity, stopBits, flags);
         if (mFd == null) {
             Log.e(TAG, "native open returns null");
-            throw new IOException();
+            throw new IOException("native open" +
+                "SerialPort(" + device.getAbsolutePath()
+                + ") returns null");
         }
         mFileInputStream = new FileInputStream(mFd);
         mFileOutputStream = new FileOutputStream(mFd);
@@ -188,8 +196,10 @@ public int getFlags() {
     }
 
     // JNI
-    private native FileDescriptor open(String absolutePath, int baudrate, int dataBits, int parity,
-        int stopBits, int flags);
+    private native FileDescriptor open(
+        String absolutePath, int baudrate, int dataBits, int parity,
+        int stopBits, int flags
+    );
 
     public native void close();