diff --git a/docs/som/cm/cm3/hardware-design/hardware-interface.md b/docs/som/cm/cm3/hardware-design/hardware-interface.md
index ea7fa8561..3471765f3 100644
--- a/docs/som/cm/cm3/hardware-design/hardware-interface.md
+++ b/docs/som/cm/cm3/hardware-design/hardware-interface.md
@@ -37,13 +37,6 @@ description: "详细介绍 CM3/CM3 IO 硬件信息"
 
 ### DIP_2.54MM_3PIN_180
 
-- U31
-
-  | Pin |  Name   | Pin | Name |
-  | :-: | :-----: | :-: | :--: |
-  |  1  | WL_nDis |  2  | GND  |
-  |  3  | BT_nDis |     |      |
-
 - U32
 
   | Pin |   Name    | Pin | Name |
diff --git a/i18n/en/docusaurus-plugin-content-docs/current/som/cm/cm3/hardware-design/hardware-interface.md b/i18n/en/docusaurus-plugin-content-docs/current/som/cm/cm3/hardware-design/hardware-interface.md
index 13f5e2ebf..5b87a4044 100644
--- a/i18n/en/docusaurus-plugin-content-docs/current/som/cm/cm3/hardware-design/hardware-interface.md
+++ b/i18n/en/docusaurus-plugin-content-docs/current/som/cm/cm3/hardware-design/hardware-interface.md
@@ -37,13 +37,6 @@ The following outlines the comprehensive interface details for the Radxa CM3 IO
 
 ### DIP_2.54MM_3PIN_180
 
-- U31
-
-  | Pin |  Name   | Pin | Name |
-  | :-: | :-----: | :-: | :--: |
-  |  1  | WL_nDis |  2  | GND  |
-  |  3  | BT_nDis |     |      |
-
 - U32
 
   | Pin |   Name    | Pin | Name |