diff --git a/nx/include/switch/services/btdrv.h b/nx/include/switch/services/btdrv.h
index 30669934..48bd71ca 100644
--- a/nx/include/switch/services/btdrv.h
+++ b/nx/include/switch/services/btdrv.h
@@ -1439,7 +1439,7 @@ Result btdrvGetAudioControlInputState(BtdrvAudioControlButtonState *states, s32
 
 /**
  * @brief AcquireAudioConnectionStateChangedEvent
- * @note Only available on [12.0.0+].
+ * @note Only available on [12.0.0-13.2.1].
  * @param[out] out_event Output Event.
  * @param[in] autoclear Event autoclear.
  */
@@ -1447,7 +1447,7 @@ Result btdrvAcquireAudioConnectionStateChangedEvent(Event* out_event, bool autoc
 
 /**
  * @brief GetConnectedAudioDevice
- * @note Only available on [12.0.0+].
+ * @note Only available on [12.0.0-13.2.1].
  * @param[out] addrs Output array of \ref BtdrvAddress.
  * @param[in] count Size of the addrs array in entries, the maximum is 0x8.
  * @param[out] total_out Total output entries.
diff --git a/nx/source/services/btdrv.c b/nx/source/services/btdrv.c
index 1c67a95a..a338007c 100644
--- a/nx/source/services/btdrv.c
+++ b/nx/source/services/btdrv.c
@@ -1391,14 +1391,14 @@ Result btdrvGetAudioControlInputState(BtdrvAudioControlButtonState *states, s32
 }
 
 Result btdrvAcquireAudioConnectionStateChangedEvent(Event* out_event, bool autoclear) {
-    if (hosversionBefore(12,0,0))
+    if (!hosversionBetween(12, 14))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
 
     return _btdrvCmdGetEvent(out_event, autoclear, 144);
 }
 
 Result btdrvGetConnectedAudioDevice(BtdrvAddress *addrs, s32 count, s32 *total_out) {
-    if (hosversionBefore(12,0,0))
+    if (!hosversionBetween(12, 14))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
 
     return _btdrvCmdOutU32OutBuf(addrs, count*sizeof(BtdrvAddress), (u32*)total_out, 145);