diff --git a/firmware/Meshtastic/README.MD b/firmware/Meshtastic/README.MD
index 06ac67f..d922f29 100644
--- a/firmware/Meshtastic/README.MD
+++ b/firmware/Meshtastic/README.MD
@@ -1,6 +1,9 @@
 1. Tool download  [flash_download_tool](https://www.espressif.com/en/support/download/other-tools)
 
 2. Set according to the picture 
+    In 0x10000 Address file selection  
+    If your board is 'T22_0.7'. You should select TBEAM_V07_ALLFUNCTION.......  
+    If your board is 'T22_1.1'. You should select TBEAM_V10_V11_ALLFUNCTION.......  
 
     ![](./SETTING.png)