Once you've [written the image file onto the SD card](https://github.com/evilsocket/pwnagotchi/blob/master/docs/install.md#flashing-an-image), there're a few steps you'll have to follow in order to configure your new Pwnagotchi properly.
The default password is `raspberry`; you should change it as soon as you log in for the first time by issuing the `passwd` command and selecting a new and more complex passphrase.
Create the `/root/custom.yml` file (either via SSH or by directly editing the SD card contents from a computer) that will override the [default configuration](https://github.com/evilsocket/pwnagotchi/blob/master/sdcard/rootfs/root/pwnagotchi/config.yml) with your custom values.
Pwnagotchi displays its UI in English by default, but it can speak several other languages! If you're fine with English, you don't need to do anything special.
But if you want, you can change `main.lang` to one of the supported languages:
**You can configure the refresh interval of the display via `ui.fps`.** We recommend using a slow refresh rate to avoid shortening the lifetime of your e-ink display. The default value is `0`, which will *only* refresh when changes are made to the screen.