@@ -1239,8 +1244,10 @@ int main(int argc, char **argv)
                 {
                     /* if unblock is for power interface: download patch and eventually register hci device */
                    INFO("BT power driver unblocked");
-                    free_hci();
-                    attach_hci();
+                   if (!hci_dev_registered) {
+                       free_hci();
+                       attach_hci();
+                   }
                     /* force to unblock also the bluetooth hci rfkill interface if hci device was registered */
                     if (hci_dev_registered)
                         rfkill_bluetooth_unblock();