https://devzone.nordicsemi.com/f/nordic-q-a/19043/re-gatt-profile-value-updationHi, We are working with the nrf51822 on mBed platform We have created the following profile under deviceinformationservices in main.c uint8_t DataCounter = 100; in void bleInitComplete(BLE::InitializationCompleteCallbackContext *paramsen-USTelligent Community 13Tue, 17 Jan 2017 13:19:06 GMThttps://devzone.nordicsemi.com/thread/73616?ContentTypeID=1Tue, 17 Jan 2017 13:19:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:006a9d24-88a7-4549-ad32-d63f76bdfc3bHung Bui<p>Hi Siddharth, For mbed question, it&#39;s better that you ask on the mbed forum where there are more people using mbed.</p> <p>You may want to share the whole project, or the example you are following. I actually don&#39;t understand why mbed has a write() function for a gattServer.</p><div style="clear:both;"></div>