We are trying to do a firmware upgrade via UART to the N6 from another MCU, and having trouble getting it working. We do not have a USB host stack on that MCU so we're unable to use USB DFU.
I've successfully been able to transfer and start the FSBL to the N6, but am unable to transfer the app image. Another detail is that our app image is ~540KB, so a bit too big to fit in the RAM buffer. Even a smaller sample image isn't able to work.
Before I try a different bootloader or custom option, I just wanted to see if anyone else has had success doing this or if there is something I'm missing. Thanks.
