No Indication when Exchange MTU Response not received
在我们祝福peripheral using DA14581, upon connection the peripheral sends an Exchange MTU Request and typically receives an Exchange MTU Response. We have run across iOS devices which following the DA14581 sending the Exchange MTU Request, the iOS device sends an Exchange MTU Request and the DA14581 sends an Exchange MTU Response. At this point the iOS device sends a Write Request to a DA14581 characteristic. The DA14581 sends a Write Response and would typically then send an Indication.