Twrp 3.0.2-0 Zip Download [best] Info

Only use 3.0.2-0 if your device or ROM specifically requires it. For modern development, use the latest official build.

: Executes command-line scripts directly on the device. Prerequisites for Installation

To replace it with a newer version:

Your device's bootloader must be completely unlocked.

If you do not have a custom recovery installed, you will need to use other methods that involve connecting your device to a computer.