Write Protection, Wireless, and Bluetooth Switch

You are able to turn off wireless, Bluetooth and enable the bootloader write protection
The following pins are:

1 - Write Protection (left - disabled)

2 - Wi-Fi (left - enabled)

3 - Bluetooth (left - enabled)

Switch only when the Blade is off

To activate write protection, you also need to flash the bootloader. Just follow the steps in the official documentation. Link