Hello.
The power supply switch of our product is hold by nRF9160.
The whole product will lost power if nrf1960 being reset or the power control pin is released by nRF9160.
The flash will be erased first when program a hex file with nRF programmer, so an extern button is designed in our product to help to hold the power control pin.
And the button need to be pressed during the whole program process to avoid power lose because of the reset during program process.
Here comes the question:
When use FOTA, will the nRF9160 be reset DURING FOTA process? You know that there is no person to hold the button during FOTA process.
If reset accur during FOTA process, The system will lost power and FOTA will be interrupted.
Reset after FOTA done is acceptable.