diff --git a/README.md b/README.md
index 3ac7fbba26f32f612bde353ba98029f527fde91f..c599905f3ddcfeba968016613cd90845acaaa1d0 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 
 ### 效果预览
-![image](screenshots/device/DataBaseUpgrade.gif)
+![image](screenshots/device/DataBaseUpgrade.png)
 
 使用说明
 
diff --git a/README_EN.md b/README_EN.md
index c68493f6b7311deb3587837f1ed119c9d8c4ad36..14cfc40cca809ccf45f7e10d98bfcaac10b5ecf6 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -8,7 +8,7 @@ For details, see RDB store.
 
 
 ### Preview
-![image](screenshots/device/DataBaseUpgrade_en.gif)
+![image](screenshots/device/DataBaseUpgrade_en.png)
 
 ### How to Use
 
@@ -59,7 +59,7 @@ N/A
 
 ### Constraints
 
-1. The sample app is supported only on Huawei phones running the standard system.
+1. The sample app is supported only on Huawei phones, tablets, and 2in1 devices running the standard system.
 
 2. The HarmonyOS version must be HarmonyOS 5.0.0 Release or later.
 
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