https://devzone.nordicsemi.com/f/nordic-q-a/41200/phone-app-receives-remnants-of-previous-packet-sentHello, I&#39;m currently using nrf8001 to sent a 20-byte packet. It works fine and my phone application receives the right data. However, when I send another packet that has fewer bytes, that&#39;s when a problem occurs. Here is what it looks like: Headeren-USTelligent Community 13Thu, 06 Dec 2018 01:56:01 GMThttps://devzone.nordicsemi.com/thread/160484?ContentTypeID=1Thu, 06 Dec 2018 01:56:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00d9df25-985e-40d1-8c10-44802e7ca4b3JeffreyRyan<p>It was now ok. Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/160148?ContentTypeID=1Tue, 04 Dec 2018 09:41:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7d9c0e66-11a7-4fe2-b5be-5e4f187f5dcarun_ar<p>Hi,</p> <p>Can you make sure you did not check the &quot;Use fixed length&quot; option for the characteristic when you configured this.</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-a1cac7ebae874c80b8b7268c86b459f3/pastedimage1543916477291v1.png" alt=" " /></p><div style="clear:both;"></div>