Samsung Blackjack SGH-I607 Smartphone "phone insurance mobile screen doesnt" Questions

...Mobile phone went dead on me a few weeks ago, ordered and installed a new battery. The phone worked for just about a week but now it will not run at all. It will turn on but will only show the T ...

...insurance), this second time they gave me a new battery in hopes that it wouldn't freeze a third time. Tech support admitted I had two faulty phones and has happened to others, as well. Battery was ...