Good afternoon I have a device HRM PRO PLUS, I’m writing an application in flutter, I connect to the tracker via bluetooth, everything is fine, I can get data on the heart in real time. But I need to get steps and calories which, as I understand it, are located in the service UUID "6A4E3200-667B-11E3-949A-0800200C9A66" . Having subscribed to it, it constantly gives only three readings, there is the name of the device, but there is no data from the tracker’s memory on activity. Maybe I need to send a command to receive data? Has anyone encountered this and solved this problem?