how to read 128uuid of characteristic.https://devzone.nordicsemi.com/f/nordic-q-a/18048/how-to-read-128uuid-of-characteristicHi dear Engineers! How to read 128uuid of characteristic ? I try to use sd_ble_gattc_characteristics_discover(..) then wait BLE_GATTC_EVT_CHAR_DISC_RSP. But uuid always 0x0000 according to the Photo:en-USTelligent Community 13Wed, 30 Nov 2016 11:03:41 GMTRE: how to read 128uuid of characteristic.https://devzone.nordicsemi.com/thread/69572?ContentTypeID=1Wed, 30 Nov 2016 11:03:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8c01864d-1204-4d65-82eb-0b6798d084baOleg<p>I founf the answer. To discover the random 16 UUID of unknown characteristic I have to use</p> <ol> <li> <p>sd_ble_uuid_vs_add() if known 128 UUID vendor part</p> </li> <li> <p>sd_ble_gattc_attr_info_discover() with Unknown vendor UUID, if S132 + nRF52 uses</p> </li> </ol> <p>Thanks you.</p><div style="clear:both;"></div>RE: how to read 128uuid of characteristic.https://devzone.nordicsemi.com/thread/69571?ContentTypeID=1Wed, 30 Nov 2016 08:44:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:afc7fcb1-be08-450c-a236-7501dc252484Petter Myhre<p>What SDK and SoftDevice version are you using? Do you know which 128 bit UUID you are trying to discover? Maybe <a href="https://devzone.nordicsemi.com/question/69692/how-can-i-get-128bit-service-uuid-from-peripheral/">this</a> answers you question?</p><div style="clear:both;"></div>