write responsehttps://devzone.nordicsemi.com/f/nordic-q-a/54614/write-responseHi, My unit based on NRF52832 with SDK11 and works as pheripheral. I started my project from nordics NUS (Nordic uart service) example. My IOS software developer wants to make writes to my unit with &quot;WRITE RESPONSE&quot; via the NUS and not use the en-USTelligent Community 13Wed, 20 Nov 2019 13:53:04 GMTRE: write responsehttps://devzone.nordicsemi.com/thread/221105?ContentTypeID=1Wed, 20 Nov 2019 13:53:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ef68cccb-159e-4a30-b328-b4592e21cae5Amanda Hsieh<p>Hi Yuval,&nbsp;</p> <p></p> <p><span>iOS has Bluetooth cache that was storing old information about characteristics. Could you try Cycling Bluetooth on/off to erase the cache?&nbsp;</span></p> <p>If this still cannot help, please kindly provide the <a href="https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE">nRF Sniff</a> log.&nbsp;</p> <p></p> <p>-Amanda H.</p><div style="clear:both;"></div>