https://devzone.nordicsemi.com/f/nordic-q-a/41290/sdk5-examples-led-button-service-always-appears-in-rf-connectHello everyone, I&#39;m new with Nordic devices. Actually wanted to get services correspondant to I2C slave addresses and registers. I was thinking about using the SDK template app/ or Blinky example.. but there is something strange. I can program anyen-USTelligent Community 13Fri, 07 Dec 2018 08:30:43 GMThttps://devzone.nordicsemi.com/thread/160676?ContentTypeID=1Fri, 07 Dec 2018 08:30:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33e388f3-a878-4a71-bf38-6c2dc4e28840Bj&#248;rn Kvaale<p>Most likely the issue was related to Bluetooth caching. When you restart the iPhone, the Bluetooth cache is erased. Next time this happens, you could try to turn off Bluetooth from the settings menu (not from the control center) for about 10 seconds &amp; then turn it back on. That way, the Bluetooth cache should also be removed. Good to hear that you figured it out!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/160633?ContentTypeID=1Thu, 06 Dec 2018 18:51:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c62e9888-3971-46fc-a106-f13854a03c90dplight<p>Found the problem.. using nRF connect on an Iphone7 ios12.. the app was always showing the Led button service.</p> <p>using an other iphone and the custom service was high here.</p> <p>Remove the nRF connect app and reinstalling, problem still there.</p> <p>But restarting the phone and the Led service disappeared and let the custom service appears.</p><div style="clear:both;"></div>