https://devzone.nordicsemi.com/f/nordic-q-a/66191/nrf52805-softwareHi, NordicTeam Nrf52805 as slave and mobile phone as master to connect slave. NRF_SDH_BLE_GATT_MAX_MTU_SIZE = 247, MTU = 23, the master sends the Prepare Write Request to the slave, then the slave replies to the ERROR Response.Do I need to handle theen-USTelligent Community 13Wed, 23 Sep 2020 09:25:58 GMThttps://devzone.nordicsemi.com/thread/271017?ContentTypeID=1Wed, 23 Sep 2020 09:25:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b62748f8-4857-4bb0-8964-8bcbac356640Jing Luo<p>Hi，</p> <p>I have solved the problem，thank you.</p> <p>Best regards，</p> <p>Jing</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/270807?ContentTypeID=1Tue, 22 Sep 2020 11:14:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b1d2bdd8-2ad4-40cf-8fff-fb19c8990986Vidar Berg<p>Hi,</p> <p>Yes, prepared writes is something the app should handle. You can use the <span><a title="Queued Writes" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_ble_queued_write.html?cp=7_1_3_2_8">Queued Writes</a></span> implementation for this.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>