Are you using the same coordinates on PC and Android?

Also, please attach the url of the requests you have on PC and Android. I will check it.
These urls do not need to contain the coordinates that you will be using in production.
But, it must be the urls you are having this problem with.

This is the function call

OnlineMapsOpenRouteServiceDirections.Find(
                  new double[]
                  {
                       // Coordinates
                       lng, lat,
                      // Result.features[0].geometry.coordinates[0], Result.features[0].geometry.coordinates[1]
                      targetLng,targetLat
                  },
                  new OnlineMapsOpenRouteServiceDirections.Params
                  {
                      // Extra params
                      language = "en",
                      profile = OnlineMapsOpenRouteServiceDirections.Profile.drivingCar,
                      units = "mi"
                  }).OnComplete += OnRequestComplete;
        if (targetMarker == null)
        {
            targetMarker = OnlineMapsMarker3DManager.CreateItem(Result.features[0].geometry.coordinates[1], Result.features[0].geometry.coordinates[0], targetPrefab);
            targetMarker.scale = targetScale;
        }
        else targetMarker.SetPosition(targetLng, targetLat);

    }

private void OnRequestComplete(string response)
    {
response =  "HTTP/1.1 400 Bad Request."  (on Android)

response = {"routes":[{"summary":{"distance":30.137,"duration":2435.5},"segments":[{"distance":30.137...... (on PC:)
     

...
...
...
    }