https://devzone.nordicsemi.com/f/nordic-q-a/46293/i-can-not-add-new-characteristics-to-an-existing-sampleHello I am using Android and BLE communication with nRF52832 (BLENano2) now. I am using SDK 15.0.0 with keil uversion. Central is Android and peripheral is nRF52832. Use the SDK &quot;app_ble_blinky&quot; I want to make the value of the accelerometeren-USTelligent Community 13Thu, 18 Apr 2019 05:41:03 GMThttps://devzone.nordicsemi.com/thread/182704?ContentTypeID=1Thu, 18 Apr 2019 05:41:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60143694-0a65-4934-aac7-b9d6a450909dAndy<p>Happy to help!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/182689?ContentTypeID=1Thu, 18 Apr 2019 00:30:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:de40ca70-536f-4afb-bee4-56da2672fc44y001<p><span style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" title="">Thank you for your reply</span><br style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" /><span style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" title="">I was able to connect again after being in airplane mode.</span><br style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" /><span style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" title="">I did not think that it was such a rudimentary thing</span><br style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" /><span style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" title="">That was a really big help</span><br style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" /><span style="background-attachment:scroll;background-color:transparent;background-image:none;background-repeat:repeat;background-size:auto;color:rgba(0, 0, 0, 0.87);font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;" title="">Thank you!</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/182497?ContentTypeID=1Wed, 17 Apr 2019 05:50:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:76915f6c-8da3-4fd4-95bb-0f4a0984d026Andy<p>I just took a quick look over your code and it looks ok. I assume that all the function calls finish successfully (with NRF_SUCCESS), so I would take a look at your phone.</p> <p>Try enabling and disabling plane mode on your phone. Rebooting your phone can also do the trick. I have the feeling that your phone is caching the GATT table of your device and it&#39;s not seeing the new change. Plane mode/rebooting should delete the cache, otherwise Google it. If it doesn&#39;t work then you have a problem somewhere else.</p><div style="clear:both;"></div>