Device: Mi 5s 3/64 Version: 6.12.1 Description: I've got my phone connected to my carkit (original Seat, year 2014, newest software) and have a problem calling with it. Everything looks to be in working order (steering controls, recent calls, phone book) but when making a call (from car or from phone) the sound is muted. In the caller app (tried xiaomi.eu and default google) there is a list with audio devices. Same list as where you can select the handsfree mode from the phone. This list is set to bluetooth but no sound. If I switch this list to headphones or speaker phone and back to bluetooth sound is coming from my carkit and everything works. Next call, same problem... The phone is connected to the system ofcourse and spotify is playing before so the connectivity is made and appears to be in working order.