diff --git a/bgs.md b/bgs.md
index c84b733..c1a9417 100644
--- a/bgs.md
+++ b/bgs.md
@@ -1,7 +1,17 @@
-- updated: 2025/12/3
+- updated: 2025/12/10
+
+## downgrade bgs
+
+issue: d49b454196351c988ceb5ce1f5e21b689487b5ab , 3b6d7f3e6708b5f4343fe80c4c6b958f6b6617fc
+
+```sh
+git reset d49b454196351c988ceb5ce1f5e21b689487b5ab
+```
 
 ## 1080-indigo-fedmgr-reconnect-pds-cmd
 
+- updated: 2025/12/3
+
 There was an error in the consistency of the bgs data, so it was reset.
 Therefore, the following steps are required.