Reifam I was referring to the Kyocera E4810 and E4610 it works on those in my experience.
Which phone did u try it on?

    moshe1
    as Reifam mentioned that you can not install any app on it

          hk675 Which phone? Does it have a filter?
          I used it on the E4610 and E4810 that was filtered only by adb

              9 days later
              4 days later

              Reifam I just need a way to access adb on it*. Does anybody know of any way to jailbreak it?

              *I just realized that you're right in that regard; my whole idea is to find a way to enable adb, and now moshe1 posted this app that enables and, even though you can't install the app without adb. Whatever. I made a mistake.

                    2 months later

                    Does anybody know how to enable debugging on the ZTE Z320? Build number doesn't do anything. It has a similar interface to coolpad, so I tried keej123's method, and when I try installing the app it says, "blocked from unknown sources." There's a button to the security settings, but there's no option to enable apps from unknown sources. Any ideas? Maybe [Login to see the link] (as the name suggests)?

                        FliphoneBochur Has anybody gotten anywhere? (By the way, I have the MetroPCS version. Power + Volume Down enters this weird mode called FTM. I did a drop of research on what it is, and I'm left confused. When I plug it in when it's on FTM mode and I run adb devices, it shows up as ? ‎ ‎ ‎ ‎ ‎ ‎ ‎ device, and when I try any pm commands, it says, Error: Could not access the Package Manager. Is the system running? If I try any other commands, I get similar errors. I have no clue what to do. Could somebody please help?