IN APP DFU flash writes/erases timing outhttps://devzone.nordicsemi.com/f/nordic-q-a/90843/in-app-dfu-flash-writes-erases-timing-outProduct info: NRF52840 nRF5_SDK_17.1.0_ddde560 s140_nrf52_7.3.0_softdevice I am working on a product with a NRF52840 and SDK 17.1.0 and a cell modem. This product needs the ability to update firmware over-the-air (using cell) or over BLE.en-USTelligent Community 13Fri, 12 Aug 2022 08:45:43 GMTRE: IN APP DFU flash writes/erases timing outhttps://devzone.nordicsemi.com/thread/381300?ContentTypeID=1Fri, 12 Aug 2022 08:45:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:01fbbc5c-a1a4-4ed9-9d98-8613d3704ed4Sigurd<p>Hi,</p> <p>This is something that can happen if there is a lot of BLE activity, and&nbsp;the&nbsp;<span>DFU protocol could perhaps have handled this in another way.&nbsp;</span><span>The flash memory accesses are scheduled to not disturb radio events. See the SoftDevice&nbsp;</span>documentation on this here:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/flash_mem_api/flash_mem_api.html">https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/flash_mem_api/flash_mem_api.html</a></p> <p>You could try to double NRF_FSTORAGE_SD_MAX_RETRIES</p><div style="clear:both;"></div>