We are sorry, and surprised to hear your comments. FishSpy performs well for the vast majority of users, with a range of up to 100 yards with Android phones regularly reported. We tested your returned FishSpy, and found it to function as it should. Perhaps It could be an issue with your mobile device? In any event, FishSpy offers a 30 day ‘no quibble guarantee’ which we honoured promptly. We hope to be of service to you in future.