I can't search 128bits UUID service

[Songplus]

I use the S110-6.0.0 to find the iphone ANCS service,return attr missing. The 16bits UUID is xF431.I have added the long UUID ble_uuid128_t ans_base_uuid = {0xD0, 0x00, 0x2D, 0x12, 0x1E, 0x4B, 0x0F, 0xA4, 0x99, 0x4E, 0xCE, 0xB5, 0x31, 0xf4, 0x05, 0x79} ,using sd_ble_uuid_vs_add(ble_uuid128_t const * const p_vs_uuid, uint8_t * const p_uuid_type)) function before sending service search requset. I found that p_vs_uuid pointe to a 16-octet (128-bit) little endian Vendor Specific UUID disregarding bytes 12 and 13.So how the SD know the short UUID 0xF4310 is the ANSC's short UUID ?My confusion come from follow the example of the ble_ans_c.c

BLE_UUID_BLE_ASSIGN(ans_uuid,BLE_ANCS_SERVICE_UUID ); err_code = sd_ble_gattc_primary_services_discover(p_ans->conn_handle, handle, &ans_uuid);

Here BLE_UUID_BLE_ASSIGN use 16bits UUID. the sd_ble_gattc_primary_services_discover() descript as : /* If any of the discovered services have 128-bit UUIDs which are not present in the table provided to ble_vs_uuids_assign, a UUID structure with type BLE_UUID_TYPE_UNKNOWN will be received in the corresponding event.*/ I can't find where the "ble_vs_uuids_assign" defined,it means that the function using 128bits UUID?

Furthermore I change UUID to 0x1800 service,the GATTC run correct ,I don't know why? I have tried to debug the S110-8.0.0 ANSC example,unfortunately,the device go to HardFault after sending security request.

[Songplus]

Hi Kristin ,thank you for your answer.I have a Dongle ,but it can only capture the peripheral advertising datas.After the cental bonding the peripheral ,they work under encrypted link ,so Dongle can't trace what they are doing. My production are developed base on S110 V.6.0.0,Now I want to add GATTC module to get the iphone message throught Apple's ANCS protocol. The ANCS runs as a GATT server, my production runs as a GATT client. The ANCS service UUID is :7905F431-B5CE-4E99-A40F-4B1E122D00D0 .After I adding 128bits service UUID by using sd_ble_uuid_vs_add() ,I call the sd_ble_gattc_primary_services_discover() function used short UUID 0xF431,the SD return Gatt_status==BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND.Does it mean that the service isn't found by this short UUID? If I search the 0x1800 service ,there is not problem.So I don't know which step I miss. Could you debug this base on S110 V.6.0.0 ? I had try the ANCS example in SDK 8.1 with S110 v.8.0.0,but it can't work correctly.After Sending_security_request() , the device goes to restart.I want to develop base on S110 V.6.0.0 not S110 v.8.0.0,beacause my production are being saled.Thanks.

Could you analyse the problem for me ?The Control Opcode:LL_VErSION_IND means that the cental have bonded peripheral ? I sniffed another device,which can access the ANCS successfully.The sniff result as follow

They look the same :-(

[Songplus]

Hi,I have snipffed the link,as showing in my answer.