https://devzone.nordicsemi.com/f/nordic-q-a/40459/ppk-v1-1-0-with-nrf-connect-v2-6-0-issueHi I installed nRFConnect v2.6 and command line v9.8.1 and want to use PPK to measure current. When first connect, it will update FW into PPK and works well to measure. But when I adjust &quot;Voltage regulator&quot; after swtich SW2 (External) and SW4 (Regen-USTelligent Community 13Fri, 16 Nov 2018 09:24:26 GMThttps://devzone.nordicsemi.com/thread/157672?ContentTypeID=1Fri, 16 Nov 2018 09:24:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8183c34e-f053-4616-b527-3a2cb10723dbHung Bui<p>You meant the issue of setting voltage ? Or the issue that nRFConnect can&#39;t open the board ? Please try to erase firmware and let nRFConnect flash it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/157582?ContentTypeID=1Thu, 15 Nov 2018 16:40:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1daae1a7-ba8a-46de-841e-9bc7f3bffe0emraposo1<p>I also have the same issue after updating to V.2.6.1.<br />Updated the firmware but still gives me the same issue.<br />Any clues?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/157314?ContentTypeID=1Wed, 14 Nov 2018 13:42:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1d1f239f-8d5f-48b9-a007-dd2cdff4ee3bHung Bui<p>Hi Atlas,</p> <p></p> <p>Could you try to erase the chip (on the PPK) using nrfjprog&nbsp; ? Then open the board again with nRF Connect v2.6?&nbsp;</p> <p>I have seen the same issue here when the Voltage Regulator slide failed (stuck at 2.2V) especially when there was no load on the External DUT and I need to restart the PPK board. But most of the time it worked fine. I also found if I dragged the slider it worked better than click to select the voltage.&nbsp;<br /><br /><br /></p><div style="clear:both;"></div>