I modify the project :
two service : one is hid another is different hid_1
press button 2 init hid
presss button 3 init hid_1
connect the android phone , press button2 reset ,and ,init hid; press button3 reset ,and, init hid_1, reconnect the phone,
turn off and on the bluetooth(android phone),but I can‘t receive BLE_GATTS_EVT_WRITE(gcm_ble_evt_handler), I enable the NRF_SDH_BLE_SERVICE_CHANGED
I can’t know the reason, but SDK15.2 it succeed, why? How can i do?