Hello @solders-soul_0z from what I understand the GPS module only supports one antenna at the time connected to the connector labelled IPEX. It looks to me that currently the internal antenna is connected (gray cable). Have you tried to switch and connect the external antenna (black cable) instead? Thanks Felix

Makes not difference if indoors or outdoors. Since it is connected to portA and not to portC as it is supposed to, do I need to make any modifications? Eg like here: https://community.m5stack.com/topic/1312/gps-unit-with-m5stack-fire-not-working/5 Thx