New ibeacons not detected in my app

I am developing a beacon detection application and at the moment works very well for kontakt brand beacons.

The client has sent me some new beacons that i have never seen and I have searched with google but i can't find what brand they can be.

The following information related to this beacon they gave me:

uuid: fda50693-a4e2-4fb1-afcf-c6eb07647825
pass: 000000
name: ion_beacon00021
major: 16789
minor: 24532

I have transformed my code to monitor both uuid without making it work

for (index, beaconID) in beaconsIds.enumerated() {

  let beaconUUID = UUID(uuidString: beaconID)!
  let identifier = "BLERegionBeacon \(index)"

  let beaconRegion = CLBeaconRegion(proximityUUID: beaconUUID, identifier: identifier)
  self.locationManager?.startMonitoring(for: beaconRegion)
  self.locationManager?.startRangingBeacons(in: beaconRegion)
}

func configureLocationManager() {
    self.locationManager = CLLocationManager()
    self.locationManager!.delegate = self
    self.locationManager!.desiredAccuracy = kCLLocationAccuracyBest
    self.locationManager!.distanceFilter = kCLDistanceFilterNone;
    self.locationManager!.activityType = CLActivityType.automotiveNavigation;

    for region in self.locationManager!.monitoredRegions {
      self.locationManager?.stopMonitoring(for: region)
    }

    if CLLocationManager.authorizationStatus() != CLAuthorizationStatus.authorizedAlways {
      self.locationManager?.requestAlwaysAuthorization()
    }

    self.locationManager!.startUpdatingLocation()

}

When not finding how to make this new ibeacon work I have resorted to third party applications (like MyBeacon, Detector, Beacon Demonstrator, Locate) to get validate if the information I have of this beacon is correct, but in no application I have been able to make it detect this ibeacon.

I bought a new battery to make sure it was not as simple as that, but neither. :'(

I had the idea to use any application that detects bluetooth devices and I found BLE Scanner. With this application i was lucky and could realize that at least the name that i have of the beacon is correct, but not found any related to major or minor or pass. I also thought that the long id seen there could be correct and that the I had was not... But I discarded it because when I connected the brand kontakt also gave me a different uuid.

ISCONNECTABLE Jumps between YES and NO.

When i use BLE Scanner to detect beacons Kontakt show me addional info called SERVICEDATA and ISCONNECTABLE still in YES.

- Is there anything else that needs to be done to detect these beacons?

- Anyone have any idea what may be going on?

Thank you very much

EDIT

Following the help of davidgyoung, I could realize that the Locate application if it works but only in its version for android. And in fact correctly returns the information I had been given from that beacon at first.

I found that these beacons with configurable using an application called BeaconFlyer and there I realized the reason for being that password that had sent me. I was able to change the uuid although strangely I just put numbers and no letters. I changed it by 32 zeros following the same pattern of 8-4-4-4-12. I still get no results in IOS but works on android, even after changing the uuid.

It is possible that some brands need to be certified to be detected by iOS devices and that the android do not have these restrictions.

EDIT 2

Considering all these details, it seems that the problem is IOS and not android, so it occurred to me that maybe if I created a simple android project just to test the functionality of the beacons, I should be able to detect it.

The test was done by registering this UUID f7826da6-4fa2-4e98-8024-bc5b71e0893e which is the one that has always works for me and with which I detect without any problem the beacons markkontakt.

To my surprise I detect it without problem even without registering the UUID that I have for this brand. It is very strange considering that only register 1 UUID that was the mark kontakt