From 5f11313fae903f41db3169dd4d2c0efe43150105 Mon Sep 17 00:00:00 2001
From: Petr Kracik <petrkr@petrkr.net>
Date: Wed, 15 Apr 2026 19:43:30 +0200
Subject: [PATCH] SDK3.3: Fix enforce PIN

---
 src/helpers/esp32/SerialBLEInterface.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/helpers/esp32/SerialBLEInterface.cpp b/src/helpers/esp32/SerialBLEInterface.cpp
index 535ea0dda..89e064d1f 100644
--- a/src/helpers/esp32/SerialBLEInterface.cpp
+++ b/src/helpers/esp32/SerialBLEInterface.cpp
@@ -29,8 +29,10 @@ void SerialBLEInterface::begin(const char* prefix, char* name, uint32_t pin_code
   BLEDevice::setMTU(MAX_FRAME_SIZE);
 
   BLESecurity  sec;
-  #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 0)
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 0)
   sec.setPassKey(true, pin_code);
+  sec.setCapability(ESP_IO_CAP_OUT);
+  sec.setInitEncryptionKey(ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK);
 #else
   sec.setStaticPIN(pin_code);
 #endif