I just got a refurbished galaxy s5 on E-bay that advertised as UNLOCKED GSM which is what i wanted cuz I wanted to stay with Cricket. The phone turned out to be a Verizon phone which I I took to Cricket and they were able to set it up pretty easily for me with the sim card out of my s3. But now there are some things im wondering about. I keep having a notification that Sim card is not Verizon sim card. And there's still a lot of verizon stuff on the phone. I prefer the layout of Verizon messaging app that came on the phone but can't recieve or send pics mssgs with it. At the top of the phone it says AT&T. And instead of sayin 4G like my galaxy s3 always did, it says H or H+. Internet seems slower on the s5 too. Is there a way to fix this?