https://devzone.nordicsemi.com/f/nordic-q-a/11936/customized-advertising-packet-information-in-response-not-in-advHi, I have a TinyShield Nordic module and I am having some troubles trying to customize the advertising packet. I have downloaded NRFGO Studio and I have enabled service data (I want to make the advertising dynamic). Now when I call open the advertisingen-USTelligent Community 13Thu, 18 Feb 2016 09:16:24 GMThttps://devzone.nordicsemi.com/thread/45209?ContentTypeID=1Thu, 18 Feb 2016 09:16:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c59dbd95-02c0-46ba-96ca-bb5a61e2141crun_ar<p>ah, yes. I see now that you had a broadcast &quot;service&quot; using 16bit UUIDs (I thought you used the UART service). Yes, you have a limit of 31 bytes in the advertisement packet. Since you have added service data to both the advertisement packet and scan response packet, the service data will be moved to the scan response packet in case the advertisement packet overflows. This is probably why it helps to reduce the broadcast characteristic. Note that the 16 bit UUID you are using is reserved by the bluetooth sig.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45208?ContentTypeID=1Thu, 18 Feb 2016 08:22:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:73a4af45-2bf7-4826-862a-35e2e3f6a216jeejoyi<p>It seems I may have solved the problem. I was not able to utilize the service data using my broadcast characteristic because I had it at 20 bytes but the service data had only 18 usable bytes. So once I reduced the broadcast characteristic down to 18 bytes I was able to customize my advertising packets with the data I set it using the library functions.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45207?ContentTypeID=1Thu, 18 Feb 2016 08:18:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c6d97200-0818-441e-b397-6bbd36433042jeejoyi<p>I was just trying to advertise dynamic data. For example I have an accelerometer hooked up to it and I wanted it to broadcast data from the accelerometer as advertising packets. Is there no way to do this?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45206?ContentTypeID=1Thu, 18 Feb 2016 08:11:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f8b74ff0-f02f-493a-bacf-de155e5cb1e0run_ar<p>Unfortunately it&#39;s not possible to advertise service data for custom services with the nRF8001, that is services using 128 bit UUID. What kind of data do you want to advertise? Consider using a 16 bit UUID for this instead.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45205?ContentTypeID=1Wed, 17 Feb 2016 18:52:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ff0e397c-0579-461c-a14c-586835f83a1fjeejoyi<p>Sure, here is the xml file that I have. <a href="https://www.dropbox.com/s/yitp4hmdai5l7d2/profile.xml?dl=0">XML Here</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45204?ContentTypeID=1Wed, 17 Feb 2016 09:06:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:15654020-9299-4d12-8829-7ada1ded143frun_ar<p>Can you upload the xml file you are using so I can take a look?</p><div style="clear:both;"></div>