diff --git a/manager/app/src/main/AndroidManifest.xml b/manager/app/src/main/AndroidManifest.xml
index a893ed23..59a93490 100644
--- a/manager/app/src/main/AndroidManifest.xml
+++ b/manager/app/src/main/AndroidManifest.xml
@@ -3,8 +3,10 @@
     xmlns:tools="http://schemas.android.com/tools">
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
 
 
     <application
diff --git a/manager/app/src/main/java/com/sukisu/ultra/flash/KernelFlash.kt b/manager/app/src/main/java/com/sukisu/ultra/flash/KernelFlash.kt
index 63088a99..48be9668 100644
--- a/manager/app/src/main/java/com/sukisu/ultra/flash/KernelFlash.kt
+++ b/manager/app/src/main/java/com/sukisu/ultra/flash/KernelFlash.kt
@@ -133,15 +133,13 @@ class HorizonKernelWorker(
             state.updateStep(context.getString(R.string.horizon_flashing))
             state.updateProgress(0.7f)
 
-            // 获取原始槽位信息
-            if (slot != null) {
+            val isAbDevice = isAbDevice()
+
+            if (isAbDevice && slot != null) {
                 state.updateStep(context.getString(R.string.horizon_getting_original_slot))
                 state.updateProgress(0.72f)
                 originalSlot = runCommandGetOutput(true, "getprop ro.boot.slot_suffix")
-            }
 
-            // 设置目标槽位
-            if (!slot.isNullOrEmpty()) {
                 state.updateStep(context.getString(R.string.horizon_setting_target_slot))
                 state.updateProgress(0.74f)
                 runCommand(true, "resetprop -n ro.boot.slot_suffix _$slot")
@@ -149,8 +147,7 @@ class HorizonKernelWorker(
 
             flash()
 
-            // 恢复原始槽位
-            if (!originalSlot.isNullOrEmpty()) {
+            if (isAbDevice && !originalSlot.isNullOrEmpty()) {
                 state.updateStep(context.getString(R.string.horizon_restoring_original_slot))
                 state.updateProgress(0.8f)
                 runCommand(true, "resetprop ro.boot.slot_suffix $originalSlot")
@@ -165,8 +162,7 @@ class HorizonKernelWorker(
         } catch (e: Exception) {
             state.setError(e.message ?: context.getString(R.string.horizon_unknown_error))
 
-            // 恢复原始槽位
-            if (!originalSlot.isNullOrEmpty()) {
+            if (isAbDevice() && !originalSlot.isNullOrEmpty()) {
                 state.updateStep(context.getString(R.string.horizon_restoring_original_slot))
                 state.updateProgress(0.8f)
                 runCommand(true, "resetprop ro.boot.slot_suffix $originalSlot")
@@ -174,6 +170,17 @@ class HorizonKernelWorker(
         }
     }
 
+    // 检查设备是否为AB分区设备
+    private fun isAbDevice(): Boolean {
+        val abUpdate = runCommandGetOutput(true, "getprop ro.build.ab_update")?.trim() ?: ""
+        if (abUpdate.equals("false", ignoreCase = true) || abUpdate.isEmpty()) {
+            return false
+        }
+
+        val slotSuffix = runCommandGetOutput(true, "getprop ro.boot.slot_suffix")
+        return !slotSuffix.isNullOrEmpty()
+    }
+
     private fun cleanup() {
         runCommand(false, "find ${context.filesDir.absolutePath} -type f ! -name '*.jpg' ! -name '*.png' -delete")
     }
@@ -198,10 +205,18 @@ class HorizonKernelWorker(
     private fun patch() {
         val kernelVersion = runCommandGetOutput(true, "cat /proc/version")
         val versionRegex = """\d+\.\d+\.\d+""".toRegex()
-        val version = versionRegex.find(kernelVersion)?.value ?: ""
-        val toolName = when {
-            version.startsWith("5.10.") -> "5_10"
-            else -> "5_15+"
+        val version = kernelVersion?.let { versionRegex.find(it) }?.value ?: ""
+        val toolName = if (version.isNotEmpty()) {
+            val parts = version.split('.')
+            if (parts.size >= 2) {
+                val major = parts[0].toIntOrNull() ?: 0
+                val minor = parts[1].toIntOrNull() ?: 0
+                if (major < 5 || (major == 5 && minor <= 10)) "5_10" else "5_15+"
+            } else {
+                "5_15+"
+            }
+        } else {
+            "5_15+"
         }
         val toolPath = "${context.filesDir.absolutePath}/mkbootfs"
         AssetsUtil.exportFiles(context, "$toolName-mkbootfs", toolPath)
@@ -283,7 +298,7 @@ class HorizonKernelWorker(
         }
     }
 
-    private fun runCommandGetOutput(su: Boolean, cmd: String): String {
+    private fun runCommandGetOutput(su: Boolean, cmd: String): String? {
         val process = ProcessBuilder(if (su) "su" else "sh")
             .redirectErrorStream(true)
             .start()
@@ -428,4 +443,4 @@ fun HorizonKernelFlashProgress(state: FlashState) {
             }
         }
     }
-}
+}
\ No newline at end of file
diff --git a/manager/app/src/main/java/com/sukisu/ultra/ui/screen/Install.kt b/manager/app/src/main/java/com/sukisu/ultra/ui/screen/Install.kt
index 8dbfadd3..3b32dbee 100644
--- a/manager/app/src/main/java/com/sukisu/ultra/ui/screen/Install.kt
+++ b/manager/app/src/main/java/com/sukisu/ultra/ui/screen/Install.kt
@@ -115,6 +115,7 @@ fun InstallScreen(navigator: DestinationsNavigator) {
     val summary = stringResource(R.string.horizon_kernel_summary)
     val kernelVersion = getKernelVersion()
     val isGKI = kernelVersion.isGKI()
+    val isAbDevice = isAbDevice()
 
     val onFlashComplete = {
         showRebootDialog = true
@@ -169,7 +170,7 @@ fun InstallScreen(navigator: DestinationsNavigator) {
 
     // 槽位选择
     SlotSelectionDialog(
-        show = showSlotSelectionDialog,
+        show = showSlotSelectionDialog && isAbDevice,
         onDismiss = { showSlotSelectionDialog = false },
         onSlotSelected = { slot ->
             showSlotSelectionDialog = false
@@ -240,10 +241,15 @@ fun InstallScreen(navigator: DestinationsNavigator) {
         ) {
             SelectInstallMethod(
                 isGKI = isGKI,
+                isAbDevice = isAbDevice,
                 onSelected = { method ->
-                    if (method is InstallMethod.HorizonKernel && method.uri != null && method.slot == null) {
-                        tempKernelUri = method.uri
-                        showSlotSelectionDialog = true
+                    if (method is InstallMethod.HorizonKernel && method.uri != null) {
+                        if (isAbDevice) {
+                            tempKernelUri = method.uri
+                            showSlotSelectionDialog = true
+                        } else {
+                            installMethod = method
+                        }
                     } else {
                         installMethod = method
                     }
@@ -395,6 +401,7 @@ sealed class InstallMethod {
 @Composable
 private fun SelectInstallMethod(
     isGKI: Boolean = false,
+    isAbDevice: Boolean = false,
     onSelected: (InstallMethod) -> Unit = {}
 ) {
     val rootAvailable = rootAvailable()
@@ -488,7 +495,7 @@ private fun SelectInstallMethod(
         modifier = Modifier.padding(horizontal = 16.dp)
     ) {
         // LKM 安装/修补
-        if (isGKI && rootAvailable) {
+        if (isGKI) {
             ElevatedCard(
                 colors = getCardColors(MaterialTheme.colorScheme.surfaceVariant),
                 elevation = CardDefaults.cardElevation(defaultElevation = cardElevation),
@@ -698,43 +705,6 @@ private fun SelectInstallMethod(
                 }
             }
         }
-
-        // 没有root
-        if (!rootAvailable) {
-            ElevatedCard(
-                colors = getCardColors(MaterialTheme.colorScheme.errorContainer),
-                elevation = CardDefaults.cardElevation(defaultElevation = cardElevation),
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(bottom = 12.dp)
-                    .clip(MaterialTheme.shapes.large)
-                    .shadow(
-                        elevation = cardElevation,
-                        shape = MaterialTheme.shapes.large,
-                        spotColor = MaterialTheme.colorScheme.error.copy(alpha = 0.1f)
-                    )
-            ) {
-                Row(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(24.dp),
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Icon(
-                        imageVector = Icons.Filled.AutoFixHigh,
-                        contentDescription = null,
-                        tint = MaterialTheme.colorScheme.onErrorContainer,
-                        modifier = Modifier
-                            .padding(end = 16.dp)
-                    )
-                    Text(
-                        text = stringResource(R.string.root_require_for_install),
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onErrorContainer
-                    )
-                }
-            }
-        }
     }
 }