PayfritBeacon/BeaconProvisioner.swift

@@ -365,10 +365,8 @@ class BeaconProvisioner: NSObject, ObservableObject {
         isTerminating = true
         DebugLog.shared.log("BLE: Provisioning success!")
         state = .success
-        // Signal completion BEFORE disconnecting — the disconnect delegate fires
-        // synchronously and ScanView needs writesCompleted=true before it sees it
-        completion?(.success(macAddress: nil))
         disconnectPeripheral()
+        completion?(.success(macAddress: nil))
         cleanup()
     }
 

PayfritBeacon/Provisioners/DXSmartProvisioner.swift

@@ -173,15 +173,6 @@ final class DXSmartProvisioner: NSObject, BeaconProvisioner {
         for (index, (name, packet)) in commands.enumerated() {
             await diagnosticLog?.log("write", "[\(index + 1)/\(commands.count)] \(name) (\(packet.count) bytes)")
 
-            // SaveConfig (last command) causes beacon MCU to reboot — it never sends an ACK.
-            // Fire the BLE write and return immediately; the disconnect is expected.
-            if name == "SaveConfig" {
-                peripheral.writeValue(packet, for: writeChar, type: .withResponse)
-                await diagnosticLog?.log("write", "✅ [\(index + 1)/\(commands.count)] SaveConfig sent — beacon will reboot")
-                await diagnosticLog?.log("write", "✅ All commands written successfully")
-                return
-            }
-
             // Retry each command up to 2 times — beacon BLE stack can be flaky
             var lastError: Error?
             for writeAttempt in 1...2 {
@@ -202,8 +193,8 @@ final class DXSmartProvisioner: NSObject, BeaconProvisioner {
                 throw lastError
             }
 
-            // 150ms between commands — aggressive speedup (was 300ms, originally 500ms)
-            try await Task.sleep(nanoseconds: 150_000_000)
+            // 500ms between commands — beacon needs time to process
+            try await Task.sleep(nanoseconds: 500_000_000)
         }
     }
 

PayfritBeacon/Views/ScanView.swift

@@ -698,7 +698,7 @@ struct ScanView: View {
 
             try await provisioner.writeConfig(config)
             writesCompleted = true
-            // No explicit disconnect needed — succeed() already disconnects
+            provisioner.disconnect()
 
             try await APIClient.shared.registerBeaconHardware(
                 businessId: business.id,