Yup, sure did. I had the nRF9160 up and running with the AGPS sample for a bit. I was experiencing some issues with nRF connect for Cloud getting any response from the feather after not being used for a few weeks. When I was reinstalling the battery, I started to smell that all too familiar smell. I quickly removed the battery and realized I installed it backwards. U7 had a noticeable bubble on it. After installing battery correctly the Green and Blue LED’s were powered on. I plugged in the micro USB to see if I could get any communication serially, more smoke. Probably going to at least attempt to replace U7. Figured I would at least mention it here as a reminder to double check polarity before installing your battery.