https://devzone.nordicsemi.com/f/nordic-q-a/12010/add-servicesHi, Everyone, I am using ble_app_uart project to start with . I added tps service by checking BLE_Services-&gt;ble_tps in Manage run time environments. And changing some line of codes using ble_app_proximity code. But, I found out that I can noten-USTelligent Community 13Tue, 23 Feb 2016 07:08:49 GMThttps://devzone.nordicsemi.com/thread/45465?ContentTypeID=1Tue, 23 Feb 2016 07:08:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9643b469-f39a-4afa-bbe1-44f72f51c591Einar Thorsrud<p>Then I don&#39;t see how it can be locked. Can you upload a picture of the error message, a long with the file as it is shown in the list of files in the Project window?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45464?ContentTypeID=1Mon, 22 Feb 2016 14:15:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc9e6b00-c0a6-45a9-bcfe-e24144552447nirmal@nordic<p>Hi, Einar</p> <p>Thank you.</p> <p>but I am not using pack version. I downloaded archive version and un-archieve it as explained in ble_app_uart example given on nordic website(<a href="https://devzone.nordicsemi.com/tutorials/2/)">devzone.nordicsemi.com/.../)</a></p> <p>For more I downloaded zipped SDK(nRF51_SDK_10.0.0_dc26b5e.zip) from <a href="https://developer.nordicsemi.com/nRF5_SDK/nRF51_SDK_v10.x.x/">developer.nordicsemi.com/.../</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45463?ContentTypeID=1Mon, 22 Feb 2016 12:14:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d768a4d-9248-4a6e-8707-380b85bcc674Einar Thorsrud<p>It seems you are using the pack version of the SDK. In order to freely modify any source file, and for a number of other good reasons, you should not use pack but rather use the archive (no-pack) version of the SDK instead. You can download it from <a href="https://developer.nordicsemi.com/">developer.nordicsemi.com</a>.</p><div style="clear:both;"></div>