When reading other people’s posts online, they said they asked XIAO to check if the startup mode configuration was incorrect. However, there was no follow-up to that post. The following are the pins and voltages I measured. I don’t know if they will be helpful for my situation. GPIO_2:1.8 V, GPIO_8:1.8 V, GPIO_9:3.27 V.C HIP_EN: 3.27 V