diff --git a/lib/olt_lib/ir_rx/olt.py b/lib/olt_lib/ir_rx/olt.py
index 6066ad4..cc84459 100644
--- a/lib/olt_lib/ir_rx/olt.py
+++ b/lib/olt_lib/ir_rx/olt.py
@@ -31,7 +31,7 @@ class SONY_ABC(IR_RX):  # Abstract base class
             if nedges > 50:
                 raise RuntimeError(self.OVERRUN)
             bits = (nedges - 2) // 2
-            if nedges not in (26, 32, 42, 50) or bits > self._bits:
+            if nedges not in (58, 30, 50) or bits > self._bits:
                 raise RuntimeError(self.BADBLOCK)
             self.verbose and print("SIRC {}bit".format(bits))
             width = ticks_diff(self._times[1], self._times[0])
diff --git a/main.py b/main.py
index d901048..aa0fe72 100644
--- a/main.py
+++ b/main.py
@@ -2,7 +2,7 @@
 # OLT protocol.
 # Tomas Krejci [Njord]
 
-import machine, time
+import machine, time, re
 from sys import platform
 
 ESP32 = platform == "esp32"
@@ -14,10 +14,14 @@ else:
     from pyb import Pin, LED
 import uasyncio as asyncio
 
-device_id = ""
+#### Device ID ###
+device_id_str = ""
 for b in machine.unique_id():
-    device_id += "{:02X}".format(b)
-# device_id_hex = int(device_id)
+    device_id_str += "{:02X}".format(b)
+
+device_id_str = device_id_str[-4:]  # Keep last 8 char
+device_id = int(device_id_str, 16)  # Convert to int from hex in string
+# device_id_str = str(device_id, 16)  # Convert back to hex print(f"{device_id:0x}")
 
 #### BLE UART  ###
 import ble_uart
@@ -30,7 +34,7 @@ def print_handler():
 
 
 ble = bluetooth.BLE()
-uart = ble_uart.Ble_uart(ble, on_rx=print_handler, name=print("LaserTag"))
+uart = ble_uart.Ble_uart(ble, on_rx=print_handler, name="OpenLaserTag " + device_id_str)
 
 #### OLT IR RX imports ###
 import ustruct
@@ -155,7 +159,7 @@ async def cb(byte1, byte2, byte3, packet):
 async def main(proto):
     logger.debug("main start")
 
-    print(f"Device ID: {device_id}")
+    print(f"Device ID: {device_id_str}")
 
     ### alive check ###
     asyncio.create_task(alive_check())