“All Samsung Galaxy S5 are g900 and letters BLK just say it's black. I just want to know which model corresponds between the aforementioned models Options: SM-G900F, SM-G900H, SM-G900M, SM-G900R4, SM-G900A, SM-G900T, SM-G900P, SM-G900P, SM-G900W8, SM-G900FD, SM-G9006V”