How to Write Without Response when transmitting from NUS Central Sample

How to Write Without Response when transmitting from NUS Central Samplehttps://devzone.nordicsemi.com/f/nordic-q-a/72458/how-to-write-without-response-when-transmitting-from-nus-central-sampleHi, Is it possible to use write without response when sending data from NUS Central app? I'm using NCS SDK v1.50 I replaced in nus_client.c: err = bt_gatt_write(nus_c->conn, &nus_c->rx_write_params); with err = bt_gatt_write_without_responseen-USTelligent Community 13Tue, 09 Mar 2021 16:09:52 GMTRE: How to Write Without Response when transmitting from NUS Central Samplehttps://devzone.nordicsemi.com/thread/298800?ContentTypeID=1Tue, 09 Mar 2021 16:09:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:47f7dc75-6a98-4780-8462-70f8bd11458cJørgen Holmefjord<p>Hi,</p> <p>Error -69 means "<a href="https://github.com/nrfconnect/sdk-zephyr/blob/master/lib/libc/minimal/include/errno.h#L109">Operation already in progress</a><span>". Have you called the function more than once?</span></p> <p><span>It is possible that the error comes from <a href="https://github.com/nrfconnect/sdk-nrf/blob/master/subsys/bluetooth/services/nus_client.c#L95-L97">this section</a>, if you get an error on the first call.</span></p> <p><span>Best regards,<br />Jørgen</span></p><div style="clear:both;"></div>