diff --git a/device/bluetooth/bluetooth_l2cap_channel_mac.mm b/device/bluetooth/bluetooth_l2cap_channel_mac.mm
index f1c5b398d08a9..1792d66a3f4cc 100644
--- a/device/bluetooth/bluetooth_l2cap_channel_mac.mm
+++ b/device/bluetooth/bluetooth_l2cap_channel_mac.mm
@@ -120,7 +120,16 @@ BluetoothL2capChannelMac::~BluetoothL2capChannelMac() {
   // delegate's reference to this object so the delegate will not notify us
   // for events that occur after our destruction.
   [delegate_ resetOwner];
+  [channel_ setDelegate:nil];
   [channel_ closeChannel];
+  // `delegate_`'s self-retain (`_strongSelf`) is only armed after a successful
+  // open. If we are destroyed during a pending or failed open, keep the
+  // delegate alive across one main-run-loop turn so any already-enqueued
+  // IOBluetooth callbacks hit a live receiver. See FB13705522.
+  BluetoothL2capChannelDelegate* __strong delegate = delegate_;
+  dispatch_async(dispatch_get_main_queue(), ^{
+    (void)delegate;
+  });
 }
 
 // static
diff --git a/device/bluetooth/bluetooth_rfcomm_channel_mac.mm b/device/bluetooth/bluetooth_rfcomm_channel_mac.mm
index 635a30f4b7f22..a2411754cf4d0 100644
--- a/device/bluetooth/bluetooth_rfcomm_channel_mac.mm
+++ b/device/bluetooth/bluetooth_rfcomm_channel_mac.mm
@@ -120,7 +120,16 @@ BluetoothRfcommChannelMac::~BluetoothRfcommChannelMac() {
   // delegate's reference to this object so the delegate will not notify us
   // for events that occur after our destruction.
   [delegate_ resetOwner];
+  [channel_ setDelegate:nil];
   [channel_ closeChannel];
+  // `delegate_`'s self-retain (`_strongSelf`) is only armed after a successful
+  // open. If we are destroyed during a pending or failed open, keep the
+  // delegate alive across one main-run-loop turn so any already-enqueued
+  // IOBluetooth callbacks hit a live receiver. See FB13705522.
+  BluetoothRfcommChannelDelegate* __strong delegate = delegate_;
+  dispatch_async(dispatch_get_main_queue(), ^{
+    (void)delegate;
+  });
 }
 
 // static