I have a ZTE V875. This model is sold by VIVO operator only here in Brazil. In Portugal, the same (i guess they are the same) model is sold by TMN, but the name is Smart A7. The difference between they is CPU and RAM: V875 has 600MHz and 160Mb RAM, and A7 have 800MHz and 512Mb RAM.
So, the question: HOW I can compare the hardware specs of A7 / V875, to verify if V875 have or not a RAM lock like the Blades??