Netgear Orbi Router (RBR750)

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multiple revisions of this device, use caution
abgn+ac+ax (AX4200)
Orbi Wi-Fi 6 Router AX4200
Support Support page
Wikipedia Netgear
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev Netgear Orbi Router
Model Part Number RBR750
FCC ID PY319400470
Type wireless system, wireless router
CPU1 checkY Qualcomm IPQ8074
CPU1 Type ARM Cortex-A53
CPU1 Speed 2.2 GHz ( 4 cores ) 64-bit
Flash1 Chip Winbond W29N04GZ
Flash1 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 /> (NAND)
RAM1 Size ? MiB (1 GiB)
RAM1 Chip Samsung Model?
ETH chip1 Qualcomm IPQ8074
Switch Qualcomm Atheros QCA8075
Ethernet Port Count 1-1GbE-WAN
3-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types none specified
Power 12 VDC, 2.5 A
Connector type barrel
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)

Flags:
Wi-Fi 6

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 Qualcomm QCN5024
Wireless interface OUI none specified
Antenna Connector Type MHF4
MIMO status 4x4:4
Wireless Standard IEEE 802.11b/g/n/ax
802.11ax up to 1148 Mbps
n-QAM up to 1000 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
Chip1 Qualcomm QCN5054
Wireless interface OUI none specified
Antenna Connector Type MHF4
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac/ax
802.11ax up to 2402 Mbps
AC-QAM up to 1201 Mbps
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
Radio 3
Chip1 Qualcomm QCN5054
Wireless interface OUI none specified
Antenna Connector Type MHF4
MIMO status 4x4:4
Wireless Standard IEEE 802.11a/n/ac/ax
AX-QAM up to 4804 Mbps
802.11ax up to 2402 Mbps
802.11ac up to 1733 Mbps
802.11n up to 600 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 FCC ID
Netgear Orbi Router (RBS750)PY319400470
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
Netgear Orbi Router (RBR10)QualcommQualcommQualcomm
Netgear Orbi Router (RBR20)QualcommQualcommQualcomm
Netgear Orbi Router (RBR350)QualcommQualcommQualcomm
Netgear Orbi Router (RBR40)QualcommQualcommQualcomm
Netgear Orbi Router (RBR50)QualcommQualcommQualcomm
Netgear Orbi Router (RBR50v2)QualcommQualcommQualcomm Atheros
Netgear Orbi Router (RBR750)QualcommQualcommQualcomm
Netgear Orbi Router (RBR850)QualcommQualcommQualcomm
Netgear Orbi Router (RBS750)QualcommQualcommQualcomm

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 Netgear devices with specifications, see Netgear.

2402 Mbps - 4SS 5GHz 802.11ax (80MHz chan.)
1201 Mbps - 2SS 5GHz 802.11ax (80MHz chan.)
574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan.) = AX4200 class

Flashing

Flashing OpenWrt

Target: qualcommax
Subtarget: ipq807x
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: unknown
Current supported version: snapshot
LAN Hardware: Qualcomm Atheros QCA8075
LAN Comment: 1x WAN, 3x LAN
WLAN Hardware: Qualcomm QCN5024 + 2x Qualcomm QCN5054
WLAN Comment: 2.4GHz: 2x2:2, 5GHz Low: 2x2:2, 5GHz High: 4x4:4
git • >>
qualcommax: ipq807x: add Netgear RBx750 support
Netgear RBx750 are tri band, 2.4GHz and 2x 5GHz, 8 stream 802.11ax mesh
devices from the Orbi series. The RBR750 is a router with a WAN and 3 LAN
ports. The RBS750 is a satellite without WAN port, only 2 LAN ports and
half the flash. The hardware is otherwise identical. They were sold in
kits as RBK752-RBK757, with one router and 1-6 satellites.

Hardware:
* SoC: Qualcomm IPQ8074
* RAM: 1GiB 1x Samsung
* Flash: 512MiB Winbond W29N04GZ or 256MiB Winbond W29N02GZ
* WLAN 2.4GHz: QCN5024 2x2:2 b/g/n/ax
* WLAN 5GHz Low Band: QCN5054 2x2:2 a/n/ac/ax 5180-5320MHz
* WLAN 5GHz High Band: QCN5054 4x4:4 a/n/ac/ax 5500-5700MHz
* Ethernet: QCA8075 switch with 1 WAN and 3 LAN ports or 2 LAN ports
* Serial Config: 3.3V TTL 115200-8-N-1, internal populated header
* Serial Layout: Bottom <- RX, TX, GND, 3.3V (don't connect) -> Top
* LEDs: green/red power, white/red/green/blue status
* Buttons: 1x Reset, 1x WPS

MAC addresses:
LAN1: base address on label
LAN2: base + 1
LAN3: base + 2
WAN: base + 1
2.4GHz: base + 2
5GHz-Low: base + 3
5GHz-High: base + 4

Flashing Notes:
The stock firmware images are signed. Both the bootloader and the stock
web interface check the signature and will fail to boot/flash.
The bootloader automatically does NMRP when a gigabit LAN connection is
present. The stock and factory images contain a U-Boot script that is
executed when flashing using NMRP. This is used to alter and persist the
U-Boot env with a boot command that works with unsigned firmware.

Install OpenWrt:
* Get the nmrpflash utility [0] and OpenWrt factory image
* Find network interface to use: nmrpflash -L
* Start nmrpflash: nmrpflash -i interface -f openwrt-...-factory.img
* Connect the device LAN port closest to the power jack to the same
  network using gigabit
* Plug the device in and wait for the bootloader to flash
* Unplug and replug the device once the power LED blinks amber

Revert to Stock:
The boot command needs to be reverted before flashing the stock firmware,
otherwise it will fail to boot and get stuck in recovery mode (red power
LED flashing).

* Run: fw_setenv bootcmd bootipq
* Restart the device
* Flash the stock firmware RBx750-Va.b.c.d.img using nmrpflash

[0]: https://github.com/jclehner/nmrpflash

Signed-off-by: Michael Lotz
Link: https://github.com/openwrt/openwrt/pull/21938
Signed-off-by: Robert Marko