diff --git a/app/AppConfig.cs b/app/AppConfig.cs
index 3759dea35..7fcc9f028 100644
--- a/app/AppConfig.cs
+++ b/app/AppConfig.cs
@@ -411,7 +411,7 @@ public static bool IsInvertedFNLock()
 
     public static bool IsOLED()
     {
-        return ContainsModel("OLED") || IsSlash() || ContainsModel("M7600") || ContainsModel("UX64") || ContainsModel("UX34") || ContainsModel("UX53") || ContainsModel("K360") || ContainsModel("X150") || ContainsModel("M350") || ContainsModel("K650") || ContainsModel("UM53") || ContainsModel("K660") || ContainsModel("UX84") || ContainsModel("M650") || ContainsModel("K340") || ContainsModel("K350") || ContainsModel("M140") || ContainsModel("UM340");
+        return ContainsModel("OLED") || IsSlash() || ContainsModel("M7600") || ContainsModel("UX64") || ContainsModel("UX34") || ContainsModel("UX53") || ContainsModel("K360") || ContainsModel("X150") || ContainsModel("M350") || ContainsModel("K650") || ContainsModel("UM53") || ContainsModel("K660") || ContainsModel("UX84") || ContainsModel("M650") || ContainsModel("K340") || ContainsModel("K350") || ContainsModel("M140") || ContainsModel("UM340") || ContainsModel("S540");
     }
 
     public static bool IsNoOverdrive()