diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/SimHelper.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/SimHelper.kt
index bf4a914..7002f8c 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/SimHelper.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/SimHelper.kt
@@ -45,7 +45,7 @@ object SimHelper {
     private fun watchSimRssi(context: Context) {
         val tm = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
         //获取指定卡槽的信号强度
-        val info = getNewerSlotSubscriptionInfo(context, 1)
+        val info = getNewerSlotSubscriptionInfo(context, 0)
         info?.let {
             val mTelephonyManagerForSubscriptionId =
                 tm.createForSubscriptionId(info!!.subscriptionId)