I’ve purchased a number of PR54-7 boards for a customer product. To reduce power consumption I’ve desoldered the J1 jumper to connect the I2C power controller to A3. (Note: the boards I review had the I2C power controller pin soldered to the 3.3.v pad of J1. This is in contrast to the boards documentation). When I enable A3, the Boron LTE resets. I suspect that the A3 pin cannot source enough current to support the I2C power controller.
Does anyone have any insight into this issue? Or, are others seeing the same issue.
Thanks in advance for the help.