Insert the flat end of a spudger under the right edge of the battery press connector and pry straight up to disconnect it.

To reconnect a press connector, align it over the socket and gently press down on one side until it clicks into place, then press down on the other side. It might take a few tries to align the connector.

To prevent damaging the surface mounted components around the battery and 5G mmWave connectors, only pry where instructed.