I am developing a new custom board using thingy53 as a reference design. The way I programm my thingy53 now is to use the SWD debug interface with a nRF5340 DK. I understand thingy53 also supports MCUboot loader mode so that I can flash my firmware directly onto the board. To enter bootloader mode on a thingy53, I need to press button 2 while power on the device. Now, in my own design, I do not intent to include any switch but rather just put the SoC into deep sleep mode. In this case, how can I let my device to enter the bootloader mode so that I can flash my firmware via a USB-C connector?
