If you own the ZTE Axon 7 Mini and can't wait for an official bootloader unlock method, then XDA Senior Member tdm has a tool just for you. It's called Tuliptool and it's made to help you unlock the bootloader and flash a custom recovery like TWRP. With unofficial tools like this, users should always be aware that there's a chance something could go wrong and, if so, you aren't likely to receive official support from ZTE.

If you are able to follow the instructions and get it working on your PC, the tool offers the following features:

  • Check status of your boot loader
  • Unlock your boot loader
  • Lock your boot loader
  • Install a custom recovery
  • Install a custom boot image

Check out Tuliptool in our ZTE Axon 7 Mini forum