diff --git a/lstMobile/src/hooks/useDeviceCheck.tsx b/lstMobile/src/hooks/useDeviceCheck.tsx
index 457e1c5..92b8cbe 100644
--- a/lstMobile/src/hooks/useDeviceCheck.tsx
+++ b/lstMobile/src/hooks/useDeviceCheck.tsx
@@ -19,7 +19,11 @@ export default function useDeviceLock() {
 				nextAppState === "background" || nextAppState === "inactive";
 
 			if (wasActive && isNowInactive) {
-				useMobileAuthStore.getState().lock();
+				const auth = useMobileAuthStore.getState();
+
+				if (auth.shouldLockForIdle()) {
+					auth.lock();
+				}
 			}
 
 			appStateRef.current = nextAppState;
diff --git a/lstMobile/src/lib/versionValidation.ts b/lstMobile/src/lib/versionValidation.ts
index 294bd49..7e2ae57 100644
--- a/lstMobile/src/lib/versionValidation.ts
+++ b/lstMobile/src/lib/versionValidation.ts
@@ -1,43 +1,73 @@
-
+import axios from "axios";
+import { useAppStore } from "../hooks/useAppStore";
+import { useServerStore } from "../hooks/useServerCheck";
 
 export type ServerVersionInfo = {
-  packageName: string;
-  versionName: string;
-  versionCode: number;
-  minSupportedVersionCode: number;
-  fileName: string;
+	packageName: string;
+	versionName: string;
+	versionCode: number;
+	minSupportedVersionCode: number;
+	fileName: string;
 };
 
 export type StartupStatus =
-  | { state: "checking" }
-  | { state: "needs-config" }
-  | { state: "offline" }
-  | { state: "blocked"; reason: string; server: ServerVersionInfo }
-  | { state: "warning"; message: string; server: ServerVersionInfo }
-  | { state: "ready"; server: ServerVersionInfo | null };
+	| { state: "checking" }
+	| { state: "needs-config" }
+	| { state: "offline" }
+	| { state: "blocked"; reason: string; server: ServerVersionInfo }
+	| { state: "warning"; message: string; server: ServerVersionInfo }
+	| { state: "ready"; server: ServerVersionInfo | null };
 
 export function evaluateVersion(
-  appBuildCode: number,
-  server: ServerVersionInfo
+	appBuildCode: number,
+	server: ServerVersionInfo,
 ): StartupStatus {
-  if (appBuildCode < server.minSupportedVersionCode) {
-    return {
-      state: "blocked",
-      reason: "This scanner app is too old and must be updated before use.",
-      server,
-    };
-  }
+	if (appBuildCode < server.minSupportedVersionCode) {
+		return {
+			state: "blocked",
+			reason: "This scanner app is too old and must be updated before use.",
+			server,
+		};
+	}
 
-  if (appBuildCode !== server.versionCode) {
-    return {
-      state: "warning",
-      message: `A newer version is available. Installed build: ${appBuildCode}, latest build: ${server.versionCode}.`,
-      server,
-    };
-  }
+	if (appBuildCode !== server.versionCode) {
+		return {
+			state: "warning",
+			message: `A newer version is available. Installed build: ${appBuildCode}, latest build: ${server.versionCode}.`,
+			server,
+		};
+	}
 
-  return {
-    state: "ready",
-    server,
-  };
-}
\ No newline at end of file
+	return {
+		state: "ready",
+		server,
+	};
+}
+
+export const versionCheck = async () => {
+	const { setServerVersion } = useServerStore.getState();
+	const { serverPort, serverIp } = useAppStore.getState();
+
+	const port = parseInt(serverPort || "0", 10) >= 50000 ? "3000" : serverPort;
+
+	try {
+		const res = await axios.get(
+			`http://${serverIp}:${port}/lst/api/mobile/version`,
+			{ timeout: 5000 },
+		);
+
+		if (res.status === 200) {
+			setServerVersion(res.data);
+		}
+
+		// const build = Constants.expoConfig?.android?.versionCode ?? 1;
+
+		// if (build < res.data.minSupportedVersionCode) {
+		// 	setStartupRoute("/updateScreen");
+		// 	setReady(true);
+		// 	return;
+		// }
+	} catch (error) {
+		console.log("Version check error:", error);
+	}
+};