I noticed when I hook my quad up my Samsung tab E, the connection would get weak so to speak and cause a delay in the transmission to the digital guages, or cut out completely. This went one for about a month. One day it would work awesome then the next it would be a pile. So I started to use my Samsung note 9 and I haven't had one problem since. There must be that much of a difference between the 2 bluetooth. Both are 2018 models. That's just my experience