ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/f/nordic-q-a/22850/rom-around-0x2000xxxx-range-still-has-data-after-nrfjprog---recover-and---eraseallHello, after downloading my user app using keil, I can&#39;t seem to erase the whole chip. This is what I&#39;m trying to do: erase the whole chip (nrf52840). program S140 to chip using nrfjprog program my user app into the chip using keil&#39;s downloaden-USTelligent Community 13Fri, 16 Jun 2017 09:05:37 GMTRE: ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/thread/89835?ContentTypeID=1Fri, 16 Jun 2017 09:05:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dfaa3749-9abd-45d6-8cd2-bd1f35e82942Sigurd<p>If you do <code>nrfjprog --eraseall &amp;&amp; nrfjprog -f nrf52 --program s140_nrf52840_5.0.0-2.alpha_softdevice.hex --verify</code>, are you then getting <code>&quot;Verified OK&quot;</code> ?</p><div style="clear:both;"></div>RE: ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/thread/89838?ContentTypeID=1Fri, 16 Jun 2017 05:15:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:58ad90f6-5f3d-43fc-850c-ed349d6fdac7Mitch996<p>Hey, no problem, thanks all the way and thanks all the same!</p><div style="clear:both;"></div>RE: ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/thread/89837?ContentTypeID=1Fri, 16 Jun 2017 04:12:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7fb99852-e570-4fcd-bd83-de35ef04dc76RK<p>regrettably not (which I why I posted a comment not an answer so someone else will see the question and may have some ideas.)</p><div style="clear:both;"></div>RE: ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/thread/89836?ContentTypeID=1Fri, 16 Jun 2017 04:08:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7ad7425c-73e4-405b-8535-fb35b7c6f2e6Mitch996<p>LOL Thanks. That&#39;s incredibly embarrassing...</p> <p>So... any idea on how do deal with the verification fails? I have no idea what it actually means.</p><div style="clear:both;"></div>RE: ROM around 0x2000xxxx range still has data after nrfjprog --recover and --eraseallhttps://devzone.nordicsemi.com/thread/89834?ContentTypeID=1Fri, 16 Jun 2017 03:42:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c97ac7e-809f-4474-a536-b954d36c67e4RK<p>0x2000xxxx isn&#39;t ROM it&#39;s RAM. Erasing the chip erases the flash and UICR, doesn&#39;t touch the RAM.</p><div style="clear:both;"></div>