https://devzone.nordicsemi.com/f/nordic-q-a/29473/passing-data-from-bootloader-to-app-via-gpregretProblem: I use a button with a pull-up to wake up the device (nrf52832) from power_off, but by the time the bootloader verifies the application and jumps, the button may have been already released, and the application can&#39;t detect that the button is whaten-USTelligent Community 13Tue, 16 Jan 2018 14:33:35 GMThttps://devzone.nordicsemi.com/thread/117175?ContentTypeID=1Tue, 16 Jan 2018 14:33:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2beb064e-4a7a-4b55-aae2-9e3a712b2bbdzolotiyeruki<p>My goodness, you&#39;re right--I completely missed that, and assumed it was a 32-bit register. Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117174?ContentTypeID=1Tue, 16 Jan 2018 01:24:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7fd823fd-0f35-4b16-9814-0c7d6d3f73f7RK<p>look at the documentation - GPREGRET2 is an 8-bit register.</p><div style="clear:both;"></div>