Hi, I'm now going to combine the proximity program with the ancs program, but I don't know how to make it. When I try to add the proximity program to the ancs (I add tps, bas, lls, ias and ias_client services to it.Do these services must be added in order to implement proximity? or just one or two necessary services can make it? ), but every time when I debug, it always enters the error handler, and calls the reset process. Then I cancel the ias and ias client services. Device can normally advertise, and can be successfully connected and paired to the iphone. However, when I use nrf toolbox to test the proximity functionality, it cannot discover any devices nearby. Then I try to add the ancs service to the proximity. It can normally work, but I just cannot pair it to the iphone, so the ancs part cannot work. How to solve this problem? Anyone can give some advice to me? If you can attach some codes here, I really appreciate it.