How can I change VDD to 3.3vhttps://devzone.nordicsemi.com/f/nordic-q-a/58530/how-can-i-change-vdd-to-3-3vI want to change vdd to 3.3v , but when I use the code showed in picture, it remain erroren-USTelligent Community 13Mon, 02 Mar 2020 13:59:27 GMTRE: How can I change VDD to 3.3vhttps://devzone.nordicsemi.com/thread/237476?ContentTypeID=1Mon, 02 Mar 2020 13:59:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b1b4ea2-8219-4fd4-8815-9b725a3b56e4Vidar Berg<p>Thanks for confirming. Unfortunately, it won&#39;t help to erase the chip as this is a build error. What is the error you get?</p> <p>NRF_NVMC-&gt;CONFIG should already be accessed in your startup file (system_nRFxx.c) to enable PINRESET.&nbsp;Are those routines being compiled without errors?</p><div style="clear:both;"></div>RE: How can I change VDD to 3.3vhttps://devzone.nordicsemi.com/thread/237469?ContentTypeID=1Mon, 02 Mar 2020 13:44:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:10747ae8-e48b-46f4-ab9c-2d94fbda7278Geass77<p>It fails to build , so I need to erase all the chip first?&nbsp;</p><div style="clear:both;"></div>RE: How can I change VDD to 3.3vhttps://devzone.nordicsemi.com/thread/237463?ContentTypeID=1Mon, 02 Mar 2020 13:34:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e7163bcd-4234-4db8-9a20-38a1e970535eVidar Berg<p>Hi,</p> <p>Is the chip fully erased before this code is run? Also, what is the problem you are experiencing? Is it that it fails to build or update the register setting?&nbsp;&nbsp;</p><div style="clear:both;"></div>