PayfritBeacon/Provisioners/DXSmartProvisioner.swift

@@ -174,12 +174,9 @@ final class DXSmartProvisioner: NSObject, BeaconProvisioner {
             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.
-            // Use .withoutResponse so CoreBluetooth fires the bytes immediately into the
-            // BLE radio buffer without waiting for a GATT round-trip. With .withResponse,
-            // the beacon reboots before the ACK arrives, and CoreBluetooth may silently
-            // drop the write — leaving the config unsaved and the beacon still flashing.
+            // Fire the BLE write and return immediately; the disconnect is expected.
             if name == "SaveConfig" {
-                peripheral.writeValue(packet, for: writeChar, type: .withoutResponse)
+                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

PayfritBeacon/Services/APIClient.swift

@@ -220,7 +220,7 @@ actor APIClient {
         uuid: String,
         major: Int,
         minor: Int,
-        hardwareId: String,
+        macAddress: String?,
         beaconType: String,
         token: String
     ) async throws {
@@ -230,9 +230,9 @@ actor APIClient {
             "UUID": uuid,
             "Major": major,
             "Minor": minor,
-            "HardwareId": hardwareId,
             "BeaconType": beaconType
         ]
+        if let mac = macAddress { body["MacAddress"] = mac }
         let data = try await post(path: "/beacon-sharding/register_beacon_hardware.php", body: body, token: token, businessId: businessId)
         let resp = try JSONDecoder().decode(OKResponse.self, from: data)
         guard resp.OK else {
@@ -241,13 +241,12 @@ actor APIClient {
     }
 
     func verifyBeaconBroadcast(
-        hardwareId: String,
         uuid: String,
         major: Int,
         minor: Int,
         token: String
     ) async throws {
-        let body: [String: Any] = ["HardwareId": hardwareId, "UUID": uuid, "Major": major, "Minor": minor]
+        let body: [String: Any] = ["UUID": uuid, "Major": major, "Minor": minor]
         let data = try await post(path: "/beacon-sharding/verify_beacon_broadcast.php", body: body, token: token)
         let resp = try JSONDecoder().decode(OKResponse.self, from: data)
         guard resp.OK else {

PayfritBeacon/Views/ScanView.swift

@@ -706,7 +706,7 @@ struct ScanView: View {
                 uuid: ns.uuid,
                 major: ns.major,
                 minor: Int(config.minor),
-                hardwareId: selectedBeacon?.id.uuidString ?? "unknown-ios",
+                macAddress: nil,
                 beaconType: BeaconType.dxsmart.rawValue,
                 token: token
             )
@@ -739,7 +739,7 @@ struct ScanView: View {
                 uuid: ns.uuid,
                 major: ns.major,
                 minor: Int(config.minor),
-                hardwareId: selectedBeacon?.id.uuidString ?? "unknown-ios",
+                macAddress: nil,
                 beaconType: selectedBeacon?.type.rawValue ?? "Unknown",
                 token: token
             )