diff --git a/zephcore/adapters/ota/wifi_ota.c b/zephcore/adapters/ota/wifi_ota.c
index 0d547b2..9dbf61f 100644
--- a/zephcore/adapters/ota/wifi_ota.c
+++ b/zephcore/adapters/ota/wifi_ota.c
@@ -286,7 +286,7 @@ static int upload_handler(struct http_client_ctx *client,
 static struct net_mgmt_event_callback wifi_mgmt_cb;
 
 static void wifi_mgmt_event_handler(struct net_mgmt_event_callback *cb,
-				     uint32_t mgmt_event,
+				     uint64_t mgmt_event,
 				     struct net_if *iface)
 {
 	switch (mgmt_event) {
@@ -303,7 +303,7 @@ static void wifi_mgmt_event_handler(struct net_mgmt_event_callback *cb,
 		LOG_INF("WiFi client DISCONNECTED from AP");
 		break;
 	default:
-		LOG_DBG("WiFi mgmt event: 0x%08x", mgmt_event);
+		LOG_DBG("WiFi mgmt event: 0x%016llx", mgmt_event);
 		break;
 	}
 }
diff --git a/zephcore/boards/example_board/README.md b/zephcore/boards/example_board/README.md
index a8256c5..28fd4ca 100644
--- a/zephcore/boards/example_board/README.md
+++ b/zephcore/boards/example_board/README.md
@@ -23,15 +23,26 @@ SWD flash: `west flash` (requires J-Link, pyocd, or nrfjprog connected).
 
 ### ESP32
 
-| Board               | Build string                                | Flash           |
-|----------------------|---------------------------------------------|-----------------|
-| XIAO ESP32-C3        | `west build -b xiao_esp32c3 zephcore`      | `west flash`    |
-| XIAO ESP32-C6        | `west build -b xiao_esp32c6 zephcore`      | `west flash`    |
-| LilyGo TLoRa C6      | `west build -b lilygo_tlora_c6 zephcore`  | `west flash`    |
-| Station G2           | `west build -b station_g2 zephcore`         | `west flash`    |
+| Board               | Build string                                              | Flash           |
+|----------------------|-----------------------------------------------------------|-----------------|
+| XIAO ESP32-C3        | `west build -b xiao_esp32c3 zephcore`                   | `west flash`    |
+| XIAO ESP32-C6        | `west build -b xiao_esp32c6 zephcore`                   | `west flash`    |
+| LilyGo TLoRa C6      | `west build -b lilygo_tlora_c6 zephcore`                | `west flash`    |
+| Station G2           | `west build -b station_g2/esp32s3/procpu zephcore`       | `west flash`    |
 
 ESP32 flash uses esptool over USB. Hold BOOT button if device doesn't enter download mode.
 
+**First-time setup required (all ESP32 boards):**
+
+```
+# Download Espressif BLE controller blobs (closed-source, required for BLE)
+west blobs fetch hal_espressif
+```
+
+Run this once after `west init`/`west update`. Without it, CMake will abort with
+a blob validation error during configure. Re-run after any `west update` that
+bumps the `hal_espressif` revision.
+
 ### nRF54L15
 
 | Board               | Build string                                                           | Flash           |