diff --git a/.gitmodules b/.gitmodules
index fed11d3..b6d89c3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,5 @@
 [submodule "open-x4-sdk"]
 	path = open-x4-sdk
-	url = https://github.com/open-x4-epaper/community-sdk.git
+	url = https://code.cottongin.xyz/cottongin/community-sdk.git
+	branch = crosspoint-ef
 	ignore = dirty
diff --git a/open-x4-sdk b/open-x4-sdk
index bd4e670..dede090 160000
--- a/open-x4-sdk
+++ b/open-x4-sdk
@@ -1 +1 @@
-Subproject commit bd4e6707503ab9c97d13ee0d8f8c69e9ff03cd12
+Subproject commit dede09001c4c7bc96bd3616716cdf80913f57658