diff --git a/package/netease/submodules b/package/netease/submodules
index fc1ebae96..bec7c508d 160000
--- a/package/netease/submodules
+++ b/package/netease/submodules
@@ -1 +1 @@
-Subproject commit fc1ebae96d18b06d78ac51a4304e361c964be745
+Subproject commit bec7c508da32ca77f052c9f04e5b3828ed4d459a
diff --git a/prebuilt/r311/mcu_ota b/prebuilt/r311/mcu_ota
deleted file mode 100755
index 23fe2b7b1..000000000
Binary files a/prebuilt/r311/mcu_ota and /dev/null differ