*#546368#*125#
works on a classic

    12345 um that code just calls customer service of my phone service, can u tell me what it does for you?

        3 months later

        you can access developer options on the coolpad with the following steps:

        a) Download this app: [Login to see the link]

        b) Place it in the downloads folder << important, it won't work otherwise

        c) Launch the app from the download app under tools, NOT from file manager.

        d) use the arrows to launch developer options.

        From there, it is plain old android. You can install whatever you'd like, even replacing the entire app launcher with another.

        The only limitations I've encountered was 1) the RAM of this phone is very little. 2) I didn't have a good app launcher to make launching my installed apps feasible or worthwhile.

          14 days later

          Does anyone have the code for debugging for the orbic ?

            6 days later

            For the Nuu F4L try *#666# to unlock APK installation. It works for the Aspera F42 which is essentially the same phone in Australia.

            a month later

            Does anyone know why ##228378 isn't working on my LG classic flip L125DL?

              pprobely disabled by filter

              ahashemlover probly blocked nothing there is to do unless you remove your filter

                11 days later

                Chaver

                Chaver just go to settings, About phone, click the build number seven times

                    19 days later

                    TheName5623 Go to, settings, system, about phone, software info. click on build number 7 times. This will unlock developer options.
                    to access developer options, go back to system.