AVM FRITZ!Box 7530

The FRITZ!Box 7530 is a AC1200 Dual-Band WiFi Router (up to 1.2Gbps)

It has 4x 1G LAN ports, DSL/VDSL port up to 300Mb, a USB 3.0 for NAS, Media

AVM FritzBox 7530

AVM FritzBox 7530

Product Page (English): https://en.avm.de/products/fritzbox/fritzbox-7530/technical-data/

Source Code: http://osp.avm.de/fritzbox/fritzbox-7530/

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
FRITZ!Box 7530Qualcomm IPQ4019716128NAND256Qualcomm IPQ4019b/g/na/n/ac-4xDSL1x 3.0
root@fritzbox:~# cat /proc/cpuinfo

model name      : ARMv7 Processor rev 5 (v7l) - Quad Core CPU
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm

Hardware        : Generic DT based system
Revision        : 0000
Serial          : 0000000000000000
  1. Grab the uboot for the Device from the u-boot-fritz7530 subdirectory. Place it in the same directory as the eva_ramboot.py script.
  2. Assign yourself the IP address Connect your Computer to one of the boxes LAN ports.
  3. Connect Power to the Box. As soon as the LAN port of your computer shows link, load the U-Boot to the box using following command.
    > ./eva_ramboot.py --offset 0x85000000 uboot-fritz7530.bin
  4. The U-Boot will now start. Now assign yourself the IP address Copy the OpenWrt initramfs (!) image to a installed TFTP server root directory on our Computer and rename it to FRITZ7530.bin.
  5. The Box will now put the file (a pull request every 5 seconds) and boot OpenWrt into RAM. This can take up to two minutes.
  6. Copy the U-Boot and the OpenWrt sysupgrade (!) image to the Box using scp, like
scp /tmp/uboot-fritz7530.bin root@
scp /tmp/avm_fritzbox-7530-squashfs-sysupgrade.bin  root@

SSH into the Box and first write the Bootloader to both previous kernel partitions.

mtd write /tmp/uboot-fritz7530.bin uboot0
mtd write /tmp/uboot-fritz7530.bin uboot1
  1. Remove the AVM filesystem partitions to make room for our kernel + rootfs + overlayfs.
    ubirmvol /dev/ubi0 --name=avm_filesys_0
    ubirmvol /dev/ubi0 --name=avm_filesys_1
  2. Flash OpenWrt peristently using sysupgrade.
    sysupgrade -n /tmp/avm_fritzbox-7530-squashfs-sysupgrade.bin
dev:    size   erasesize  name
mtd0: 00080000 00020000 "SBL1"
mtd1: 00080000 00020000 "MIBIB"
mtd2: 00080000 00020000 "QSEE"
mtd3: 00040000 00020000 "CDT"
mtd4: 00080000 00020000 "QSEE_B"
mtd5: 00040000 00020000 "urlader0"
mtd6: 00040000 00020000 "urlader1"
mtd7: 00840000 00020000 "nand-tffs"
mtd8: 00400000 00020000 "uboot0"
mtd9: 00400000 00020000 "uboot1"
mtd10: 06d00000 00020000 "ubi"

See Installation

  • Browse to LuCI Upgrade URL
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot


  • Login as root via SSH on, then enter the following commands:
cd /tmp
wget https://downloads.openwrt.org/releases/21.02.0-rc2/targets/ipq40xx/generic/openwrt-21.02.0-rc2-ipq40xx-generic-avm_fritzbox-7530-squashfs-sysupgrade.bin
sysupgrade /tmp/openwrt-21.02.0-rc2-ipq40xx-generic-avm_fritzbox-7530-squashfs-sysupgrade.bin


If no Internet or WAN configured use WinScp''. and upload the file to /tmp

  • 1st Login as root via WinScp on, then browse to /tmp and upload the openwrt-21.XX.XX-ipq40xx-generic-avm_fritzbox-7530-squashfs-sysupgrade.bin file
  • 2nd Login as root via SSH on, then enter the following commands:
cd /tmp
sysupgrade /tmp/openwrt-21.02.0-rc2-ipq40xx-generic-avm_fritzbox-7530-squashfs-sysupgrade.bin

For debrick and / or factory image recovery use the AVM Recovery Tool.

The default network configuration as of 21.02.0-rc2

Interface Name Description Default configuration
br-lan LAN & WiFi
eth0 Unknown port Unknown port
eth1 LAN 1-4 LAN 1-4
wlan0 2.4GHz WiFi Disabled
wlan1 5 GHz WiFi Disabled
DSL Unsupported Unsupported

This device has one ethernet interface with 4 LAN ports. It does not have a fifth eth port for WAN like FB4040

eth0 is connected to the 4 LAN ports as well as the CPU. VLANs can be configured the standard OpenWrt way. The table below shows how they are displayed and numbered in LUCI.

Switch Ports

Port Switch port
CPU (eth0) 0
LAN 1 1
LAN 2 2
LAN 3 3
LAN 4 4

A working VLAN setup is shown in the image below. This uses LAN 1 as a trunk port that receives tagged VLAN traffic from the network. LAN 2 and LAN 3 are members of VLAN 42 (used for the “Internal” network), LAN 4 is connected to VLAN 99 (used for a “Guest” network)

When configuring the VLANs it is very important to bind the LUCI network interfaces to the correct physical interfaces before applying the settings. Otherwise you will be locked out of the device and need to reflash it!

Go to LUCI→Network→Interfaces and check the “Physical Settings” for each one. Following the example above “Internal” would be connected to eth0.42 and “Guest” to eth0.99. When everything works as expected, corresponding WIFI networks can be added as a bridge here later on.

It has been mentioned in the forums that with this SoC, VLAN IDs 1 and 2 are treated specially by the hardware driver (https://forum.openwrt.org/t/vlans-on-ipq40xx-alternative-config-for-fritzbox-4040/41832/6) so it is probably best to avoid VLAN ID 1 and 2 if possible. This may change with updated hardware drivers.

hardware.button on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.

FIXME Please fill in real values for this device, then remove the EXAMPLEs

The AVM FRITZ!Box 7530 has the following buttons:

EXAMPLE Reset reset
EXAMPLE Secure Easy Setup ses
EXAMPLE No buttons at all. -
Brand AVM
Model FRITZ!Box 7530
Device Type WiFi Router
Availability Available 2019
Comments - general See also https://boxmatrix.info/wiki/FRITZ!Box_7530
OpenWrt Support
Supported Since Commit https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=95b0c07a618fe5fd93a26931152ced483bba143b
Supported Since Release 19.07.0
Supported Current Release 21.02.0
Bootloader U-Boot
Target ipq40xx
CPU MHz 716
Flash MB 128NAND
RAM MB 256
Ethernet 100M ports -
Ethernet Gbit ports 4
Switch Qualcomm Atheros QCA8075
Modem xDSL
Comments - network ports
WLAN 2.4GHz b/g/n
WLAN 5.0GHz a/n/ac
WLAN Hardware Qualcomm IPQ4019
Detachable Antennas -
Comments - WLAN
USB ports 1x 3.0
SATA ports -
Serial Yes
Comments - USB & SATA ports
LED count 6
Button count 3
Power supply 12 VDC, 1.5 A
Forum Topic URL
WikiDevi URL https://wikidevi.wi-cat.ru/AVM_FRITZ!Box_7530
OEM device homepage URL https://avm.de/produkte/fritzbox/fritzbox-7530/
Firmware OEM Stock URL https://avm.de/service/downloads/?product=fritzbox-7530
Firmware OpenWrt Install URL http://downloads.openwrt.org/releases/21.02.0/targets/ipq40xx/generic/openwrt-21.02.0-ipq40xx-generic-avm_fritzbox-7530-initramfs-fit-uImage.itb
Firmware OpenWrt Upgrade URL http://downloads.openwrt.org/releases/21.02.0/targets/ipq40xx/generic/openwrt-21.02.0-ipq40xx-generic-avm_fritzbox-7530-squashfs-sysupgrade.bin
Edit the underlying data View/Edit data

Insert photo of front of the casing

Insert photo of back of the casing

Backside label:
Insert photo of backside label

Note: This will void your warranty!

FIXME Describe what needs to be done to open the device, e.g. remove rubber feet, adhesive labels, screws, …

  • To remove the cover and open the device, do a/b/c

Main PCB:
Insert photo of PCB

port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

Serial connection parameters
for AVM FRITZ!Box 7530
115200, 8N1

port.jtag general information about the JTAG port, JTAG cable, etc.

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port



Space for additional notes, links to forum threads or other resources.

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  • Last modified: 2021/09/07 08:27
  • by wutje