Reset RouterBoard SXT Series

This button has three functions. Hold the button, then apply power. Depending on when you release the button, it will do these things:

• release immediately (0-5 seconds) after starting the device to load backup bootloader
• release when user LED starts to flash to reset RouterOS (5-10 seconds)
• release after user LED stops flashing to start Etherboot (Netinstall) mode (10+ seconds)

Y no te vuelvas loco :P