I have had problems with Ypsopump. My phone is about a year old, Samsung S20, no other problems with Bluetooth, fine for phoning and playing podcasts in the car. The Aveo meter stopped communicating with the app just after I updated the app in March. A long (and helpful) talk with Ypsomed customer service ended with them deciding the meter was faulty and sending me a new one. It wasn't that, the new meter was exactly the same. Now the app often tells me it can't communicate with the Ypsopump, and often needs to be tried 3-4 times before it will. It also tells me that I already have a bolus running when I don't, I try again and that message goes.
My conclusion is that the update to the MyLife app was faulty and caused these problems. I now have to test on the meter, and then type the results in to the app, with the problems occurring as described above. This is as time-consuming as it used to be when working out my own dose using a pen for basal/bolus before I got a pump. I may ask for a different meter to try with the pump and app, but I am getting fed up with this.