AVM FRITZ!Box 7520

abgn+ac (AC1300)
wireless router
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Partial Support
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	AVM FRITZ!Box 7520
FCC ID	none specified
Type	wireless router
CPU1 Y	Qualcomm IPQ4019
CPU1 Type	ARMv7 Cortex-A7
CPU1 Speed	716 MHz ( 4 cores )
Flash1 Chip	Brand? Model?
Flash1 Size	128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (NAND)
RAM1 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 />
RAM1 Chip	Brand? Model?
ETH chip1	Qualcomm IPQ4019
Switch	Qualcomm Atheros QCA8075
RJ11 Ports (VOIP/POTS)	1
Ethernet Port Count	4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	USB 3.0
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 1.5 A
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Flags: xDSL
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	Qualcomm IPQ4019
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n
n-QAM	up to 400 Mbps
802.11n	up to 300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	Qualcomm IPQ4019
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/n/ac
802.11ac	up to 867 Mbps
802.11n	up to 300 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz

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 AVM devices with specifications, see AVM.

• 400 Mbps - 2SS 2.4GHz 802.11n (40MHz chan., 256-QAM),

• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1300 class

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki

Target: ipq40xx
Subtarget: generic
Package architecture: arm_cortex-a7_neon-vfpv4
Supported Since Commit
Support started version: 22.03.0
Current supported version: snapshot

Unsupported Functions:
DECT
LAN Hardware: Qualcomm Atheros QCA8075
WLAN Hardware: Qualcomm Atheros IPQ4019
WLAN Comment: AC1300, 2.4GHz @ 867Mbps 2-stream 802.11ac device (433Mbps per stream)
Installation method(s):
EVA FTP, see git-commit
Install Comment:
same as Fritzbox 7530
Comment:
Identical to Fritzbox 7530. See also https://boxmatrix.info/wiki/FRITZ!Box_7520

AVM FRITZ!Box 7520 / 7530

git • >>
ipq40xx: add support for FRITZ!Box 7520 This model, also know as "1&1 HomeServer", shares the same features as 7530. The vendor firmware has artificial software limitations: only 2 of the 4 LAN-Ports are GBit, and the USB-Host is only v2.0. With OpenWrt, USB is already working at v3.0. Signed-off-by: Andre Heider (updated commit message to reflect current state) Signed-off-by: Christian Lamparter