diff --git a/.changelog/lang_zh-Hans.json b/.changelog/lang_zh-Hans.json
index 5c8a70d7..7d46f1c8 100644
--- a/.changelog/lang_zh-Hans.json
+++ b/.changelog/lang_zh-Hans.json
@@ -3,7 +3,8 @@
     "v6.6.2": {
       "released_date": "2025/01/03",
       "fix": [
-        "notice 模块缺失 getBuilder 等扩展方法的问题 _[`issue #301`](http://issues.autojs6.com/301)_"
+        "notice 模块缺失 getBuilder 等扩展方法的问题 _[`issue #301`](http://issues.autojs6.com/301)_",
+        "dx 库在 Android 7.x 无法正常使用的问题 _[`issue #293`](http://issues.autojs6.com/293)_"
       ],
       "improvement": [
         "精简打包应用模板 APK 文件大小",
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 30dee12e..a843083d 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -149,6 +149,7 @@ dependencies /* Unclassified */ {
 
     // Dex
     implementation(files("$rootDir/libs/com.android.dx-1.14.jar"))
+    implementation(files("$rootDir/libs/com.legacy.android.dx-1.7.0.jar"))
 
     // OpenCV
     implementation(project(":libs:org.opencv-4.8.0"))
@@ -820,13 +821,6 @@ class Versions(filePath: String) {
     private val javaVersionMinRadical: Int = properties["JAVA_VERSION_MIN_RADICAL"].let { it as String }.toInt()
     private val javaVersionRaw = properties["JAVA_VERSION"] as String
     private var javaVersionInfoSuffix = ""
-    private val javaVersionCeilMap = mapOf(
-        "idea" to mapOf(
-            "2023.2" to javaVersionMinSuggested, /* Aug 17, 2023. */
-            "2023.1" to javaVersionMinSuggested, /* Aug 17, 2023. */
-            "2022.3" to javaVersionMinSuggested, /* Aug 17, 2023. */
-        ),
-    )
 
     val javaVersion: JavaVersion by lazy {
         var niceVersionInt = javaVersionRaw.toInt()
diff --git a/app/src/main/java/org/autojs/autojs/App.kt b/app/src/main/java/org/autojs/autojs/App.kt
index 17baab07..ed052a8f 100644
--- a/app/src/main/java/org/autojs/autojs/App.kt
+++ b/app/src/main/java/org/autojs/autojs/App.kt
@@ -1,7 +1,6 @@
 package org.autojs.autojs
 
 import android.annotation.SuppressLint
-import android.app.Application
 import android.content.Context
 import android.content.Intent
 import android.content.res.Configuration
@@ -29,7 +28,6 @@ import org.autojs.autojs.event.GlobalKeyObserver
 import org.autojs.autojs.external.receiver.DynamicBroadcastReceivers
 import org.autojs.autojs.leakcanary.LeakCanarySetup
 import org.autojs.autojs.pluginclient.DevPluginService
-import org.autojs.autojs.runtime.api.WrappedShizuku
 import org.autojs.autojs.timing.TimedTaskManager
 import org.autojs.autojs.timing.TimedTaskScheduler
 import org.autojs.autojs.tool.CrashHandler
@@ -94,7 +92,7 @@ class App : MultiDexApplication() {
         val crashHandler = CrashHandler(ErrorReportActivity::class.java)
 
         val strategy = CrashReport.UserStrategy(applicationContext)
-        strategy.setCrashHandleCallback(crashHandler)
+        strategy.crashHandleCallback = crashHandler
 
         CrashReport.initCrashReport(applicationContext, BUGLY_APP_ID, false, strategy)
 
@@ -239,7 +237,7 @@ class App : MultiDexApplication() {
             get() = instance.get()!!
 
         fun getProcessNameCompat(): String {
-            return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) Application.getProcessName() else {
+            return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) getProcessName() else {
                 try {
                     @SuppressLint("PrivateApi") val activityThread = Class.forName("android.app.ActivityThread")
                     @SuppressLint("DiscouragedPrivateApi") val method: Method = activityThread.getDeclaredMethod("currentProcessName")
diff --git a/app/src/main/java/org/autojs/autojs/rhino/AndroidClassLoader.kt b/app/src/main/java/org/autojs/autojs/rhino/AndroidClassLoader.kt
index 3afc46a6..fb1209b3 100644
--- a/app/src/main/java/org/autojs/autojs/rhino/AndroidClassLoader.kt
+++ b/app/src/main/java/org/autojs/autojs/rhino/AndroidClassLoader.kt
@@ -1,7 +1,9 @@
 package org.autojs.autojs.rhino
 
+import android.os.Build
 import android.util.Log
 import com.android.dx.command.dexer.Main
+import com.legacy.android.dx.command.dexer.Main as LegacyMain
 import dalvik.system.DexClassLoader
 import net.lingala.zip4j.ZipFile
 import net.lingala.zip4j.exception.ZipException
@@ -156,11 +158,19 @@ class AndroidClassLoader(private val parent: ClassLoader, private val cacheDir:
     @Throws(IOException::class)
     private fun dexJar(classFile: File, dexFile: File?): DexClassLoader {
         val niceDexFile = dexFile ?: generateTempFile("dex-" + classFile.path, true)
-        Main.Arguments().apply {
-            fileNames = arrayOf(classFile.path)
-            outName = niceDexFile.path
-            jarOutput = true
-            Main.run(this)
+        when (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            true -> Main.Arguments().apply {
+                fileNames = arrayOf(classFile.path)
+                outName = niceDexFile.path
+                jarOutput = true
+                Main.run(this)
+            }
+            else -> LegacyMain.Arguments().apply {
+                fileNames = arrayOf(classFile.path)
+                outName = niceDexFile.path
+                jarOutput = true
+                LegacyMain.run(this)
+            }
         }
         val loader = loadDex(niceDexFile)
         if (dexFile == null) /* is temporary file generated */ {
diff --git a/app/src/main/java/org/autojs/autojs/util/RhinoUtils.kt b/app/src/main/java/org/autojs/autojs/util/RhinoUtils.kt
index 908d51b9..64317f84 100644
--- a/app/src/main/java/org/autojs/autojs/util/RhinoUtils.kt
+++ b/app/src/main/java/org/autojs/autojs/util/RhinoUtils.kt
@@ -883,7 +883,7 @@ object RhinoUtils {
         override fun toString(): String = "function ${funcName ?: ""}() { ... }"
 
         override fun getDefaultValue(typeHint: Class<*>?) = when (typeHint) {
-            org.mozilla.javascript.ScriptRuntime.StringClass -> toString()
+            RhinoScriptRuntime.StringClass -> toString()
             else -> this
         }
 
diff --git a/jieba-analysis/src/main/java/com/huaban/analysis/jieba/viterbi/FinalSeg.kt b/jieba-analysis/src/main/java/com/huaban/analysis/jieba/viterbi/FinalSeg.kt
index 9c68150c..4192a027 100644
--- a/jieba-analysis/src/main/java/com/huaban/analysis/jieba/viterbi/FinalSeg.kt
+++ b/jieba-analysis/src/main/java/com/huaban/analysis/jieba/viterbi/FinalSeg.kt
@@ -60,12 +60,12 @@ class FinalSeg private constructor() {
                     values!![tokens[0][0]] = tokens[1].toDouble()
                 }
             }
-        } catch (e: IOException) {
+        } catch (_: IOException) {
             Log.error(String.format(Locale.getDefault(), "%s: load model failure!", PROB_EMIT))
         } finally {
             try {
                 `is`.close()
-            } catch (e: IOException) {
+            } catch (_: IOException) {
                 Log.error(String.format(Locale.getDefault(), "%s: close failure!", PROB_EMIT))
             }
         }
diff --git a/libs/com.legacy.android.dx-1.7.0.jar b/libs/com.legacy.android.dx-1.7.0.jar
new file mode 100644
index 00000000..238a2fb8
Binary files /dev/null and b/libs/com.legacy.android.dx-1.7.0.jar differ
diff --git a/version.properties b/version.properties
index 23afb7c7..52d8ea1f 100644
--- a/version.properties
+++ b/version.properties
@@ -1,5 +1,5 @@
-#Sat Jan 11 19:18:51 CST 2025
-BUILD_TIME=1736594331756
+#Sun Jan 12 12:30:28 CST 2025
+BUILD_TIME=1736656228596
 COMPILE_SDK_VERSION=34
 JAVA_VERSION=23
 JAVA_VERSION_MIN_RADICAL=0
@@ -17,6 +17,6 @@ RAPID_OCR_OPENCV_MOBILE_LABEL_VERSION=13
 RAPID_OCR_OPENCV_MOBILE_VERSION=4.5.3
 TARGET_SDK_VERSION=34
 TARGET_SDK_VERSION_INRT=29
-VERSION_BUILD=2960
+VERSION_BUILD=2964
 VERSION_NAME=6.6.2 Alpha
 VSCODE_EXT_REQUIRED_VERSION=1.0.8