--- Upgrade Firmware Version 1-255 Ubnt Download Guide
If you want, tell me the exact UBNT model and current firmware version and I’ll provide the precise download link and step‑by‑step commands for that device.
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This article is designed to address network administrators, home lab enthusiasts, and professional installers who encounter this specific firmware naming convention on Ubiquiti (UBNT) devices. --- Upgrade Firmware Version 1-255 Ubnt Download
The 1-255 firmware for an XM (AR7240) device is named:
XM.v1.255.140929.1650.bin (example date code)
For XW (AR934x) devices, it may be:
XW.v1.255.141210.1902.bin If you want, tell me the exact UBNT
Do not download a file that just says "firmware.bin" – legitimate builds have version numbers in the filename.
Ubiquiti Inc. produces equipment (airMAX, UniFi, EdgeMax) that often distinguishes between: The 1-255 firmware for an XM (AR7240) device is named: XM
The term Ubnt (a common shorthand for Ubiquiti) and Upgrade Firmware strongly suggest this relates to updating a PtMP (Point-to-Multi-Point) base station—specifically, an airMAX sector antenna managing up to 255 client stations.
Only download UBNT firmware from Ubiquiti’s official community portal or direct CDN links. Ubiquiti does not host old firmware indefinitely, but archived versions are available via the Ubiquiti Firmware Archive (requires an account) or through trusted mirror sites that checksum files against official SHA256 hashes.

