It's great that you're being cautious! From the images you provided, it seems like the connectors on the replacement part are stack connectors, which typically indicate they're plugged in rather than soldered. To confirm, you can gently try to disconnect the connectors from the old part. If they come off easily without resistance, they're likely plugged in. If they seem firmly attached or you encounter resistance, they might be soldered. If you're unsure, it might be wise to consult a technician or refer to the device's manual for guidance.
