diff --git a/MiniSim/Service/DeviceDiscoveryService.swift b/MiniSim/Service/DeviceDiscoveryService.swift
index e29b9b0..6e7a775 100644
--- a/MiniSim/Service/DeviceDiscoveryService.swift
+++ b/MiniSim/Service/DeviceDiscoveryService.swift
@@ -91,6 +91,14 @@ class IOSDeviceDiscovery: DeviceDiscoveryService {
   }
 
   func checkSetup() throws -> Bool {
-    FileManager.default.fileExists(atPath: DeviceConstants.ProcessPaths.xcrun.rawValue)
+    guard FileManager.default.fileExists(atPath: DeviceConstants.ProcessPaths.xcrun.rawValue) else {
+      return false
+    }
+
+    _ = try shell.execute(
+      command: DeviceConstants.ProcessPaths.xcrun.rawValue,
+      arguments: ["simctl", "list", "devices", "available", "-j"]
+    )
+    return true
   }
 }
diff --git a/MiniSim/Service/DeviceServiceFactory.swift b/MiniSim/Service/DeviceServiceFactory.swift
index c656dcb..21490c8 100644
--- a/MiniSim/Service/DeviceServiceFactory.swift
+++ b/MiniSim/Service/DeviceServiceFactory.swift
@@ -36,11 +36,19 @@ class DeviceServiceFactory {
         var devicesArray: [Device] = []
 
         if android {
-          try devicesArray.append(contentsOf: AndroidDeviceDiscovery().getDevices())
+          do {
+            try devicesArray.append(contentsOf: AndroidDeviceDiscovery().getDevices())
+          } catch {
+            // A broken Android installation must not prevent the iOS menu from opening.
+          }
         }
 
         if iOS {
-          try devicesArray.append(contentsOf: IOSDeviceDiscovery().getDevices())
+          do {
+            try devicesArray.append(contentsOf: IOSDeviceDiscovery().getDevices())
+          } catch {
+            // xcrun/simctl may be unavailable while the rest of MiniSim is usable.
+          }
         }
 
         completionQueue.async {