Assuming version 1.255 is legitimate for your specific hardware, what improvements might it bring? Based on release patterns from similar version jumps, here are plausible changes:
Ubiquiti (Ubnt) firmware version appears to be a specific update for the UniFi Access G2 Touch or G2 Touch Max Go to product viewer dialog for this item. Upgrade Firmware Version 1.255 Ubnt -UPD- Download
___________________ Date: ___________________ Assuming version 1
Before starting, you must find the exact firmware binary for your specific hardware model (e.g., EdgeRouter, UniFi AP, or airMAX). Visit the official Ubiquiti Downloads Search for your device model Upgrade Firmware Version 1.255 Ubnt -UPD- Download