diff --git a/wyoming_satellite/xvf_usb.py b/wyoming_satellite/xvf_usb.py
index 9542d21..47ad352 100644
--- a/wyoming_satellite/xvf_usb.py
+++ b/wyoming_satellite/xvf_usb.py
@@ -38,6 +38,7 @@ USB_VENDOR_ID = 0x2886
 USB_PRODUCT_IDS = [0x0018, 0x001A]
 
 # GPO_SERVICER_RESID LED commands
+# resid=20 (GPO service), cmdid=12-19 (LED commands)
 GPO_RESID = 20
 LED_EFFECT_CMD = 12
 LED_BRIGHTNESS_CMD = 13
@@ -160,6 +161,11 @@ class XVF3800Controller:
                     "✅ XVF3800 found (USB %04x:%04x, bus %d, addr %d)",
                     self._vendor_id, pid, dev.bus, dev.address
                 )
+                
+                # Ждём 500ms после подключения для стабилизации устройства
+                import time
+                time.sleep(0.5)
+                
                 return
             else:
                 _LOGGER.debug("Device %04x:%04x not found", self._vendor_id, pid)