I bought a cmf pro watch to my son. I connected successfully when I got in my hand to my son’s phone. Which is Samsung buz2. But after first recharge, my sin told me that watch is not conneced. So I tried to reconnect with phone, but cmf app keeps failing connection in final step of connection. I tried so many times and tried with my phone which is samsung galaxy flip 5, but I could’t connect either. What do I have to do to connect?