https://devzone.nordicsemi.com/f/nordic-q-a/89006/not-able-to-send-data-over-uart-from-nrf52840-ble-to-appHi, I am using nrf52840, SDK v17, SES v5.10 ble_app_uart example for the development. I am able to send data from the nrfConnect app to uart but not more 1 byte at a time and not able to send data from UART to the app. while i debug the code i amen-USTelligent Community 13Fri, 17 Jun 2022 08:16:44 GMThttps://devzone.nordicsemi.com/thread/372950?ContentTypeID=1Fri, 17 Jun 2022 08:16:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dd085763-fcf3-4859-ac3f-497c82fc918fovrebekk<p>Hi Shafi</p> <p>Are you testing this on a standard nRF52840DK, or on custom hardware?</p> <p>Have you made any significant changes to the example?&nbsp;<br />I see there are some changes in the main file you shared, but they don&#39;t look very dramatic. Have you tested the example out of the box, without any changes made, to see if the issue is the same?</p> <p>What kind of phone are you using for the testing?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>