https://devzone.nordicsemi.com/f/nordic-q-a/8992/is-program-verified-if-lock-entire-chip-from-readback-is-checkedWe have a factory in Hong Kong building and programming nRF51822 modules for us. We may go to a fancier solution in the future, but right now we are using nRFgo Studio and a bed of nails fixture to program the modules. They are programming them withen-USTelligent Community 13Tue, 01 Sep 2015 11:24:19 GMThttps://devzone.nordicsemi.com/thread/33108?ContentTypeID=1Tue, 01 Sep 2015 11:24:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a64a9567-779a-45e5-a1c1-429a7e3e2e16MartinBL<p>Hi</p> <p>nRFgo Studio will program your module and then verify the code. After verifying it will lock the entire chip from readback by writing to the UICR.RBPCONF register. You can find more info in chapter 8 and 9 in the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf51.v1.0.0/pdflinks/ref_manual.html?cp=2_2">Reference manual v3.0</a>.</p><div style="clear:both;"></div>