None of those suggestions made a difference. I had been using the board without an SD card. I tried with two different ones also. I tried uploading v2.3 and v2.4 with no power loss protection. The upload fails except for v2.5. It ran great out of the box from you with v2.4 except it didn’t recognize the KX134. I didn’t have an SD card, but was just watching the logging and playing with the log settings. Everything fell apart when I updated the firmware to v2.5 using the gui uploader on my mac. I bought this for a project for next week as a quick tool to get some datalogging. At this point, I need to either get a new one that works or start working on an alternative. I don’t have high hopes for troubleshooting this board at this point.