I have to agree the samsung s24 ultra phone signal is terrible, this phone never seams to have signal and in compassion to my old samsung note 20 ultra that phone had signal everywhere. I still think there's a defect with these phones as I've never had this problem until I got a s24 this always shows no signal or 1 or 2 bars even now it's showing no signal, and as I live a 5m walk from phone mast I blame this phone. And I can switch my old note 20 ultra on and find signal 2 or 3 bars straight away. So I blame this s24