How to do the application switch to serial bootloaderhttps://devzone.nordicsemi.com/f/nordic-q-a/9390/how-to-do-the-application-switch-to-serial-bootloaderSoftdevice Version： 8.0.0 SDK： 9.0.0 IC： NRF51822 Rev 3 service： NUS ANCS When the application is not downloaded, the bootloader is working. After serial bootloader successfully download application, can not jump from application to serial bootloaderen-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT