diff --git a/app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduInterface.kt b/app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduInterface.kt
index f0b1909..f06e317 100644
--- a/app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduInterface.kt
+++ b/app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduInterface.kt
@@ -1,6 +1,7 @@
 package im.angry.openeuicc.core
 
-import android.telephony.IccOpenLogicalChannelResponse
+import android.telephony.IccOpenLogicalChannelResponse.STATUS_NO_ERROR
+import android.telephony.IccOpenLogicalChannelResponse.INVALID_CHANNEL
 import android.telephony.TelephonyManager
 import android.util.Log
 import im.angry.openeuicc.util.*
@@ -13,7 +14,7 @@ class TelephonyManagerApduInterface(
     private val port: UiccPortInfoCompat,
     private val tm: TelephonyManager,
     private val verboseLoggingFlow: Flow<Boolean>
-): ApduInterface {
+) : ApduInterface, ApduInterfaceAtrProvider {
     companion object {
         const val TAG = "TelephonyManagerApduInterface"
     }
@@ -31,11 +32,17 @@ class TelephonyManagerApduInterface(
         // Do nothing
     }
 
+    private val slotIndex: Int
+        get() = port.card.physicalSlotIndex
+
+    private val portIndex: Int
+        get() = port.portIndex
+
     override fun logicalChannelOpen(aid: ByteArray): Int {
         val hex = aid.encodeHex()
-        val channel = tm.iccOpenLogicalChannelByPortCompat(port.card.physicalSlotIndex, port.portIndex, hex, 0)
-        if (channel.status != IccOpenLogicalChannelResponse.STATUS_NO_ERROR || channel.channel == IccOpenLogicalChannelResponse.INVALID_CHANNEL) {
-            throw IllegalArgumentException("Cannot open logical channel $hex via TelephonyManager on slot ${port.card.physicalSlotIndex} port ${port.portIndex}")
+        val channel = tm.iccOpenLogicalChannelByPortCompat(slotIndex, portIndex, hex, 0)
+        require(channel.status == STATUS_NO_ERROR && channel.channel != INVALID_CHANNEL) {
+            "Cannot open logical channel $hex via TelephonyManager on slot $slotIndex port $portIndex"
         }
         channels.add(channel.channel)
         return channel.channel
@@ -45,7 +52,7 @@ class TelephonyManagerApduInterface(
         check(channels.contains(handle)) {
             "Invalid logical channel handle $handle"
         }
-        tm.iccCloseLogicalChannelByPortCompat(port.card.physicalSlotIndex, port.portIndex, handle)
+        tm.iccCloseLogicalChannelByPortCompat(slotIndex, portIndex, handle)
         channels.remove(handle)
     }
 
@@ -53,15 +60,21 @@ class TelephonyManagerApduInterface(
         check(channels.contains(handle)) {
             "Invalid logical channel handle $handle"
         }
-        if (runBlocking { verboseLoggingFlow.first() }) {
-            Log.d(TAG, "TelephonyManager APDU: ${tx.encodeHex()}")
-        }
-        val result = tm.iccTransmitApduLogicalChannelByPortCompat(
-            port.card.physicalSlotIndex, port.portIndex, handle,
-            tx,
-        )
-        if (runBlocking { verboseLoggingFlow.first() })
-            Log.d(TAG, "TelephonyManager APDU response: $result")
+        val verbose = runBlocking { verboseLoggingFlow.first() }
+        if (verbose) Log.d(TAG, "TelephonyManager APDU: ${tx.encodeHex()}")
+        val result = tm.iccTransmitApduLogicalChannelByPortCompat(slotIndex, portIndex, handle, tx)
+        if (verbose) Log.d(TAG, "TelephonyManager APDU response: $result")
         return result?.decodeHex() ?: byteArrayOf()
     }
+
+    override val atr: ByteArray?
+        get() = try {
+            tm.iccGetAtr(slotIndex)?.decodeHex()
+        } catch (e: NoSuchMethodException) {
+            try {
+                tm.getAtrUsingSlotId(slotIndex)
+            } catch (e: Exception) {
+                null
+            }
+        }
 }
\ No newline at end of file
diff --git a/libs/hidden-apis-shim/src/main/java/im/angry/openeuicc/util/TelephonyManagerHiddenApi.kt b/libs/hidden-apis-shim/src/main/java/im/angry/openeuicc/util/TelephonyManagerHiddenApi.kt
index 0d42354..0d5d463 100644
--- a/libs/hidden-apis-shim/src/main/java/im/angry/openeuicc/util/TelephonyManagerHiddenApi.kt
+++ b/libs/hidden-apis-shim/src/main/java/im/angry/openeuicc/util/TelephonyManagerHiddenApi.kt
@@ -58,6 +58,23 @@ private val setSimSlotMapping: Method by lazy {
         Collection::class.java
     )
 }
+private val getITelephony: Method by lazy {
+    TelephonyManager::class.java.getMethod("getITelephony").apply {
+        isAccessible = true
+    }
+}
+
+fun TelephonyManager.getAtrUsingSlotId(slotId: Int): ByteArray? {
+    val telephony = getITelephony.invoke(this)
+    val getAtrUsingSlotId = telephony.javaClass.getMethod("getAtrUsingSlotId", Int::class.java)
+    return getAtrUsingSlotId.invoke(telephony, slotId) as ByteArray?
+}
+
+fun TelephonyManager.iccGetAtr(slotId: Int): String? {
+    val telephony = getITelephony.invoke(this)
+    val iccGetAtr = telephony.javaClass.getMethod("iccGetAtr", Int::class.java)
+    return iccGetAtr.invoke(telephony, slotId) as String?
+}
 
 fun TelephonyManager.iccOpenLogicalChannelBySlot(
     slotId: Int, appletId: String?, p2: Int
@@ -67,7 +84,8 @@ fun TelephonyManager.iccOpenLogicalChannelBySlot(
 fun TelephonyManager.iccOpenLogicalChannelByPort(
     slotId: Int, portId: Int, appletId: String?, p2: Int
 ): IccOpenLogicalChannelResponse =
-    iccOpenLogicalChannelByPort.invoke(this, slotId, portId, appletId, p2) as IccOpenLogicalChannelResponse
+    iccOpenLogicalChannelByPort.invoke(this, slotId, portId, appletId, p2)
+            as IccOpenLogicalChannelResponse
 
 fun TelephonyManager.iccCloseLogicalChannelBySlot(slotId: Int, channel: Int) {
     iccCloseLogicalChannelBySlot.invoke(this, slotId, channel)
@@ -95,12 +113,17 @@ fun TelephonyManager.iccTransmitApduLogicalChannelByPort(
 
 var TelephonyManager.simSlotMapping: Collection<UiccSlotMapping>
     get() = getSimSlotMapping.invoke(this) as Collection<UiccSlotMapping>
-    set(new) { setSimSlotMapping.invoke(this, new) }
+    set(new) {
+        setSimSlotMapping.invoke(this, new)
+    }
 
 private val requestEmbeddedSubscriptionInfoListRefresh: Method by lazy {
-    SubscriptionManager::class.java.getMethod("requestEmbeddedSubscriptionInfoListRefresh", Int::class.java)
+    SubscriptionManager::class.java.getMethod(
+        "requestEmbeddedSubscriptionInfoListRefresh",
+        Int::class.java
+    )
 }
 
-fun SubscriptionManager.requestEmbeddedSubscriptionInfoListRefresh(cardId: Int): Unit {
+fun SubscriptionManager.requestEmbeddedSubscriptionInfoListRefresh(cardId: Int) {
     requestEmbeddedSubscriptionInfoListRefresh.invoke(this, cardId)
 }
\ No newline at end of file