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BLE HID Keyboard Sample Issue with BLE_ERROR_GATTS_SYS_ATTR_MISSING error(0x00003401)

HI, I am currently working on a project to develop firmware for S110 nRF51822 softdevice .

Currently I have a device with the following details: Ic Version - 2, Variant - CE AA , Build Code - D0, Hardware Id - 004d

I am using the softdevice s110_nrf51822_7.0.0_softdevice.hex , nRF SDK 6.1

I am able to connect to the device with my IPAD(ios8 only working) I am trying test the sample ble keyboard application for 6310 board.

but I am receiving BLE_ERROR_GATTS_SYS_ATTR_MISSING error(0x00003401)

in the method

    err_code = ble_hids_inp_rep_send(p_hids, 
                                                 INPUT_REPORT_KEYS_INDEX,
                                                 INPUT_REPORT_KEYS_MAX_LEN,
                                                 data);
   which interns calls sd_ble_gatts_hvx

when i try to send "hello"

Please help me in solving this issue.

Kind Regards, Ven

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