https://devzone.nordicsemi.com/f/nordic-q-a/25314/error-flash-is-not-erasedHi everyone, I&#39;m trying to compile my own bootloader. I had this error when trying to flash it into my module: Here is my linker script for the bootloader: SEARCH_DIR(.) GROUP(-lgcc -lc -lnosys) MEMORY { FLASH (rx) : ORIGIN = 0x0003c000en-USTelligent Community 13Wed, 20 Sep 2017 10:49:58 GMThttps://devzone.nordicsemi.com/thread/99765?ContentTypeID=1Wed, 20 Sep 2017 10:49:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c854e71-d206-4c33-b388-573877c417e9Bj&#248;rn Kvaale<p>Check this <a href="https://devzone.nordicsemi.com/question/30622/what-is-role-of-bootloader/">case</a>, this <a href="https://devzone.nordicsemi.com/question/22056/combining-sd-dfu-and-application-hex-and-programming/?answer=22246#post-id-22246">one</a> and look at this <a href="http://developer.nordicsemi.com/nRF51_SDK/nRF51_SDK_v7.x.x/doc/7.2.0/s110/html/a00069.html">flash layout</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/99764?ContentTypeID=1Wed, 20 Sep 2017 08:46:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:27edeffc-87fa-4d35-b6ba-dc803e714a3eHamza<p>Of course, I have even tried without the softdevice programmed.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/99763?ContentTypeID=1Wed, 20 Sep 2017 08:43:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:de35337b-d539-4899-8f6d-0ffaec88208eBj&#248;rn Kvaale<p>Did you remember to press the erase all button before you flashed your own bootloader?</p><div style="clear:both;"></div>