Hello,
I'm new in the Nordic sphere and I'm starting in embedded programming. I was confronted with the following problem and I will try to give as many details as possible. I would like your help to understand the problem.
When I received the thingy I updated the FW and ran the asset tracking demo that was in the file: img_fota_dfu_hex, as explained in the video getting star with thingy. I installed the sdk and ran basic samples via my JLink (blinky, button) and also on the BLE modem. I wanted to go further and noticed that I couldn't see the printk so I started by looking at how to do it. The simplest and most common way is to open a terminator and connect it to the COM port.
So I decided to connect my thingy to a USB port to see the prints. That's when I noticed that my thingy is no longer detected by window. After a lot of searching, looking at the forum I learned that the nrf9160 is not connected to USB so I have to flash the nrf52840 with the hex connectivity bridge file. Except that when I tried to flash I didn't get any error but it didn't solve my problem. So I searched for other tracks. Then I figured I'd take it all from the beginning and the same demo didn't work anymore. I was trying to flash the hex files in the folder: img_fota_dfu_hex. Then I tried to flash the img_app_bl file and now everything works. My thingy is detected again. Can you explain me the difference between these two folders and their contents?
Thank you in advance for your answer.
