Ubiquiti Networks UniFi AP AC HD

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multiple revisions of this device, use caution
abgn+ac (AC2600)
802.11ac Wave 2 Enterprise Wi-Fi Access Point (UAP-AC-HD-US)
Wikipedia Ubiquiti Networks
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev Ubiquiti Networks UniFi AP ACHD
Model Part Number UAP-AC-HD-US
FCC ID (fcc.io) SWX-UAPACHD
FCC ID (fcc.report) SWX-UAPACHD
Type access point
CPU1 checkY Qualcomm IPQ8064
CPU1 Type ARMv7-A Cortex-A15
CPU1 Speed 1.4 GHz ( 2 cores )
Flash1 Chip Micron MT29F2G08ABBEAH4
Flash1 Size 256 MiB 268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (NAND)
Flash2 Chip Macronix MX25U25635F
Flash2 Size 32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> (SPI NOR)
RAM1 Size 512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (DDR3)
RAM1 Chip Brand? Model?
ETH chip1 Qualcomm IPQ8064
ETH chip2 Atheros AR8033
ETH chip3 Atheros AR8033
Ethernet Port Count 2-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Stock FW OS ‎UBNT System
Expansion IF types Mini PCIe, USB 3.0
Mini PCIe slots 2
USB ports 1
USB Hub Compatible Untested
PoE 802.3at, standard
Power ? VDC, ? A
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)

Flags:
WAVE2, PoE+

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Retail
(Est.) release date 01 January 2017
ASIN B01N15FSAG
Country of manuf China
Physical
Dimensions 8.66 x 8.66 x 1.89 inches
Weight 1.83 pounds
Radio 1
Radio1 module unknown
Radio1 module IF Mini PCIe
Chip1 Qualcomm Atheros QCA9994
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 4x4:4
Wireless Standard IEEE 802.11b/g/n
N-QAM up to 800 Mbps
802.11n up to 600 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Radio2 module unknown
Radio2 module IF Mini PCIe
Chip1 Qualcomm Atheros QCA9994
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 4x4:4
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 1733 Mbps
802.11n up to 600 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
Ubiquiti Networks UniFi AC MeshQualcomm AtherosQualcomm AtherosQualcomm Atheros
Ubiquiti Networks UniFi AC Mesh ProQualcomm AtherosQualcomm AtherosQualcomm Atheros
Ubiquiti Networks UniFi AP AC HDQualcommQualcomm AtherosQualcomm Atheros
Ubiquiti Networks UniFi AP AC LRQualcomm AtherosQualcomm AtherosQualcomm Atheros
Ubiquiti Networks UniFi AP AC LiteQualcomm AtherosQualcomm AtherosQualcomm Atheros
Ubiquiti Networks UniFi AP AC Pro (UAP-AC- PRO)Qualcomm AtherosQualcomm AtherosQualcomm Atheros

For a list of all currently documented Atheros (QCA) chipsets with specifications, see Atheros.
For a list of all currently documented Qualcomm chipsets with specifications, see Qualcomm.
For a list of all currently documented Qualcomm Atheros (QCA) chipsets with specifications, see Qualcomm Atheros.

For a list of all currently documented Ubiquiti Networks devices with specifications, see Ubiquiti Networks.

800 Mbps - 4SS 2.4GHz 802.11n (40MHz chan., 256-QAM),
1733 Mbps - 4SS 5GHz 802.11ac (80MHz chan.) = AC2600 class

Flashing

Flashing OpenWrt

Target: ipq806x
Subtarget: generic
Package architecture: arm_cortex-a15_neon-vfpv4
Support started version: 21.02.0
Current supported version: 25.12.2
LAN Comment: Atheros AR8033
WLAN Hardware: 2x Qualcomm Atheros QCA9994
WLAN Comment: 4x4 MU-MIMO Wave 2
Installation method(s):
CLI generic, see git-commit
Recovery method(s):
Ubiquiti TFTP
Comment:
Since OpenWRT version 24.10, CPU ipq806x has switched to DSA architecture. Hence upgrading from earlier versions to 24.10.x or later requires *complete reset* of router configuration.
git • >>
ipq806x: add support for Ubiquiti UniFi AC HD
Hardware
--------

SoC:   Qualcomm IPQ8064
RAM:   512MB DDR3
Flash: 256MB NAND (Micron MT29F2G08ABBEAH4)
       32MB SPI-NOR (Macronix MX25U25635F)
WLAN:  Qualcomm Atheros QCA9994 4T4R b/g/n
       Qualcomm Atheros QCA9994 4T4R a/n/ac
ETH:   eth0 - SECONDARY (Atheros AR8033)
       eth1 - MAIN (Atheros AR8033)
USB:   USB-C
LED:   Dome (white / blue)
BTN:   Reset

Installation
------------

Copy the OpenWrt sysupgrade image to the /tmp directory of the device
using scp. Default IP address is 192.168.1.20 and default username and
password are "ubnt".

SSH to the device and write the bootselect flag to ensure it is booting
from the mtd partition the OpenWrt image will be written to. Verify the
output device below matches mtd partition "bootselect" using /proc/mtd.

> dd if=/dev/zero bs=1 count=1 seek=7 conv=notrunc of=/dev/mtd11

Write the OpenWrt sysupgrade image to the mtd partition labeled
"kernel0". Also verify the used partition device using /proc/mtd.

> dd if=/tmp/sysupgrade.bin of=/dev/mtdblock12

Reboot the device.

Back to stock
-------------

Use the TFTP recovery procedure with the Ubiquiti firmware image to
restore the vendor firmware.