diff --git a/app-common/src/main/java/im/angry/openeuicc/ui/SettingsFragment.kt b/app-common/src/main/java/im/angry/openeuicc/ui/SettingsFragment.kt
index fab680f..c54d6a1 100644
--- a/app-common/src/main/java/im/angry/openeuicc/ui/SettingsFragment.kt
+++ b/app-common/src/main/java/im/angry/openeuicc/ui/SettingsFragment.kt
@@ -122,7 +122,7 @@ open class SettingsFragment: PreferenceFragmentCompat() {
         return true
     }
 
-    private fun CheckBoxPreference.bindBooleanFlow(flow: PreferenceFlowWrapper<Boolean>) {
+    protected fun CheckBoxPreference.bindBooleanFlow(flow: PreferenceFlowWrapper<Boolean>) {
         lifecycleScope.launch {
             flow.collect { isChecked = it }
         }
diff --git a/app-common/src/main/java/im/angry/openeuicc/util/PreferenceUtils.kt b/app-common/src/main/java/im/angry/openeuicc/util/PreferenceUtils.kt
index f5e3ca2..cfa3d80 100644
--- a/app-common/src/main/java/im/angry/openeuicc/util/PreferenceUtils.kt
+++ b/app-common/src/main/java/im/angry/openeuicc/util/PreferenceUtils.kt
@@ -31,6 +31,7 @@ internal object PreferenceKeys {
 
     // ---- Developer Options ----
     val DEVELOPER_OPTIONS_ENABLED = booleanPreferencesKey("developer_options_enabled")
+    val REMOVABLE_TMAPI = booleanPreferencesKey("removable_tmapi")
     val UNFILTERED_PROFILE_LIST = booleanPreferencesKey("unfiltered_profile_list")
     val IGNORE_TLS_CERTIFICATE = booleanPreferencesKey("ignore_tls_certificate")
 }
@@ -48,6 +49,7 @@ class PreferenceRepository(private val context: Context) {
 
     // ---- Developer Options ----
     val developerOptionsEnabledFlow = bindFlow(PreferenceKeys.DEVELOPER_OPTIONS_ENABLED, false)
+    val removableTMAPIFlow = bindFlow(PreferenceKeys.REMOVABLE_TMAPI, false)
     val unfilteredProfileListFlow = bindFlow(PreferenceKeys.UNFILTERED_PROFILE_LIST, false)
     val ignoreTLSCertificateFlow = bindFlow(PreferenceKeys.IGNORE_TLS_CERTIFICATE, false)
 
diff --git a/app-common/src/main/res/xml/pref_settings.xml b/app-common/src/main/res/xml/pref_settings.xml
index bb5bd50..944bd27 100644
--- a/app-common/src/main/res/xml/pref_settings.xml
+++ b/app-common/src/main/res/xml/pref_settings.xml
@@ -52,7 +52,7 @@
 
     </PreferenceCategory>
 
-    <PreferenceCategory
+    <im.angry.openeuicc.ui.preference.LongSummaryPreferenceCategory
         app:key="pref_developer"
         app:title="@string/pref_developer"
         app:iconSpaceReserved="false">
@@ -69,7 +69,7 @@
             app:summary="@string/pref_developer_ignore_tls_certificate_desc"
             app:title="@string/pref_developer_ignore_tls_certificate" />
 
-    </PreferenceCategory>
+    </im.angry.openeuicc.ui.preference.LongSummaryPreferenceCategory>
 
     <PreferenceCategory
         app:key="pref_info"
diff --git a/app/src/main/java/im/angry/openeuicc/core/PrivilegedEuiccChannelFactory.kt b/app/src/main/java/im/angry/openeuicc/core/PrivilegedEuiccChannelFactory.kt
index b690c79..fddc2bd 100644
--- a/app/src/main/java/im/angry/openeuicc/core/PrivilegedEuiccChannelFactory.kt
+++ b/app/src/main/java/im/angry/openeuicc/core/PrivilegedEuiccChannelFactory.kt
@@ -5,6 +5,7 @@ import android.util.Log
 import im.angry.openeuicc.OpenEuiccApplication
 import im.angry.openeuicc.R
 import im.angry.openeuicc.util.*
+import kotlinx.coroutines.flow.first
 import java.lang.IllegalArgumentException
 
 class PrivilegedEuiccChannelFactory(context: Context) : DefaultEuiccChannelFactory(context) {
@@ -21,7 +22,7 @@ class PrivilegedEuiccChannelFactory(context: Context) : DefaultEuiccChannelFacto
             super.tryOpenEuiccChannel(port)?.let { return it }
         }
 
-        if (port.card.isEuicc) {
+        if (port.card.isEuicc || context.preferenceRepository.removableTMAPIFlow.first()) {
             Log.i(
                 DefaultEuiccChannelManager.TAG,
                 "Trying TelephonyManager for slot ${port.card.physicalSlotIndex} port ${port.portIndex}"
diff --git a/app/src/main/java/im/angry/openeuicc/ui/PrivilegedSettingsFragment.kt b/app/src/main/java/im/angry/openeuicc/ui/PrivilegedSettingsFragment.kt
index 3306c73..6c75b3c 100644
--- a/app/src/main/java/im/angry/openeuicc/ui/PrivilegedSettingsFragment.kt
+++ b/app/src/main/java/im/angry/openeuicc/ui/PrivilegedSettingsFragment.kt
@@ -1,11 +1,17 @@
 package im.angry.openeuicc.ui
 
 import android.os.Bundle
+import androidx.preference.CheckBoxPreference
 import androidx.preference.Preference
+import im.angry.openeuicc.R
+import im.angry.openeuicc.util.preferenceRepository
 
 class PrivilegedSettingsFragment : SettingsFragment() {
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         super.onCreatePreferences(savedInstanceState, rootKey)
+        addPreferencesFromResource(R.xml.pref_privileged_settings)
+        mergePreferenceOverlay("pref_developer_overlay", "pref_developer")
+
         // It's stupid to _disable_ things for privileged, but for now, the per-app locale picker
         // is not usable for apps signed with the platform key.
         // ref: <https://android.googlesource.com/platform/packages/apps/Settings/+/refs/tags/android-15.0.0_r6/src/com/android/settings/applications/AppLocaleUtil.java#60>
@@ -13,5 +19,9 @@ class PrivilegedSettingsFragment : SettingsFragment() {
         // eventually work for platform-signed apps. Or, at some point we might introduce our own
         // locale picker, which hopefully works whether privileged or not.
         requirePreference<Preference>("pref_advanced_language").isVisible = false
+
+        // Force use TelephonyManager API
+        requirePreference<CheckBoxPreference>("pref_developer_tmapi_removable")
+            .bindBooleanFlow(preferenceRepository.removableTMAPIFlow)
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 47c88bd..36e584a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -22,4 +22,8 @@
     <string name="lui_desc">Your device supports eSIMs. To connect to mobile network, download your eSIM issued by a carrier, or insert a physical SIM.</string>
     <string name="lui_skip">Skip</string>
     <string name="lui_download">Download eSIM</string>
+
+    <!-- Preference -->
+    <string name="pref_developer_tmapi_removable">Using TMAPI for removable</string>
+    <string name="pref_developer_tmapi_removable_desc">TMAPI (TelephonyManager API) will not be enabled in non-euicc mode and some removable eSIM cards may not work.\nEnable this option to skip detection and force TMAPI to be enabled.</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/pref_privileged_settings.xml b/app/src/main/res/xml/pref_privileged_settings.xml
new file mode 100644
index 0000000..4411d42
--- /dev/null
+++ b/app/src/main/res/xml/pref_privileged_settings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto">
+    <PreferenceCategory
+        app:isPreferenceVisible="false"
+        app:key="pref_developer_overlay">
+        <CheckBoxPreference
+            app:iconSpaceReserved="false"
+            app:key="pref_developer_tmapi_removable"
+            app:summary="@string/pref_developer_tmapi_removable_desc"
+            app:title="@string/pref_developer_tmapi_removable" />
+    </PreferenceCategory>
+</PreferenceScreen>
\ No newline at end of file