I've been in the wireless industry for over 10 years now and just this last year i decided to open up a cell phone shop.
I did plenty of research in different devices that would work best for my unlocking/repair needs.
After trying several different devices, i came across the z3x machine. By far hands down the best and first device i turn to for my unlocking/repair needs. Best device with the most updates with additional devices. Easy to use, very accurate! Definitely a device to have!!!!