My phone keeps going out of network , it ok one min then loses service, i cant make or recieve call or texts . Samgung S4 19505 not a new sim card.
Did it ever work for you?
You may need a replacement SIM - for some reason some SIMs seem to "go bad" for no obvious reason.
Doesn't make sense to me but seems to happen.
You can get a replacement SIM here:
Hope this helps.