diff --git a/Config.h b/Config.h
index b9341dd..79902fd 100644
--- a/Config.h
+++ b/Config.h
@@ -24,9 +24,7 @@
 // #define PI_HAT_7021_REV_02
 // 2) ZUM-Spot USB and ZUM-Spot Pi HAT:
 // #define PI_HAT_7021_REV_03
-// 3) ZUM-Spot Libre Kit
-// #define ZUMSPOT_LIBRE
-// 4) board with modified RF7021SE and Blue Pill STM32F103
+// 3) ZUM-Spot Libre Kit or board with modified RF7021SE and Blue Pill STM32F103
 #define ADF7021_CARRIER_BOARD
 
 // Enable ADF7021 support:
@@ -60,8 +58,10 @@
 // Send RSSI value:
 // #define SEND_RSSI_DATA
 
-// Enable Nextion LCD serial port repeater:
+// Enable Nextion LCD serial port repeater on USART2:
 // #define SERIAL_REPEATER
+// Enable Nextion LCD serial port repeater on USART1 (not compatible with ZUM-Spot Libre or STM32_USART1_HOST):
+// #define SERIAL_REPEATER_USART1
 
 // Enable P25 Wide modulation
 // #define ENABLE_P25_WIDE