https://devzone.nordicsemi.com/f/nordic-q-a/85492/creating-custom-serviceHi , SDK 17.1.0 SD132 SoC - nrf52832 I am following the below given link to create custom service. https://github.com/bjornspockeli/custom_ble_service_example My default section placements macros are as given below. FLASH_PH_START=0x0en-USTelligent Community 13Mon, 07 Mar 2022 05:35:10 GMThttps://devzone.nordicsemi.com/thread/356464?ContentTypeID=1Mon, 07 Mar 2022 05:35:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:53a29cb7-3dd3-4b95-9335-52396bb08689RAM_MS<p>Hello ,</p> <p>buja</p> <p><span>Error code 0x04 means&nbsp;</span><a href="https://www.nordicsemi.com/DocLib/Content/SoftDevice_API_Doc/S132/v6-1-0/group__nrf__error#ga7ef4d466b79b31c6325f8b7af5d4f75f">NRF_ERROR_NO_MEM</a><span>, and is returned from call to&nbsp;</span><a href="https://www.nordicsemi.com/DocLib/Content/SoftDevice_API_Doc/S132/v6-1-0/group_ble_common_functions#ga8a92420df90945526d4c89d09486508d">sd_ble_enable</a><span>() in&nbsp;nrf_sdh_ble_enable().</span></p> <p><span>It may also suggest about memory adjustment.(enable log with backend rtt ).It will suggest in the time of debug.</span></p> <p><span>Otherwise try with more <strong>ram_size and also ram_start .</strong></span></p> <p>You should try to modify the RAM configuration for your application, please see&nbsp;<a href="https://devzone.nordicsemi.com/tutorials/b/getting-started/posts/adjustment-of-ram-and-flash-memory">this tutorial</a>.</p> <p>Thanks,</p> <p>ram</p><div style="clear:both;"></div>