AVM FRITZ!WLAN Repeater 1750E

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Generic Router

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  • Please include only model specific information, omit bla,bla and put everything generic into separate articles
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  • base-system should lead the way, do not explain this again
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ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
FRITZ!WLAN Repeater 1750EQualcomm Atheros QCA95567201664Qualcomm Atheros QCA9556, Qualcomm Atheros QCA9880b/g/na/n/ac-1--

Initial installation is done via FTP. You will need the following components to get started:

  • A computer with ftp command line utility and Ethernet port.
  • 1–2 Ethernet cable/s
  • (recommended) Ethernet switch
  • OpenWrt firmware image, e.g. openwrt-21.02.0-rc1-ath79-generic-avm_fritz1750e-squashfs-sysupgrade.bin

Please read through all steps before beginning the process and make sure you understand the procedure.

  1. Connect your computer and the repeater to the Ethernet switch
    • If you have no switch at your disposal you can try a direct connection. It might be tricky though to persuade your computer into assigning the IP address in time to establish the FTP connection within the available time frame.
  2. Configure your computer with a static IP address in the 192.168.178.0/24 subnet, e.g. 192.168.178.10
  3. Plug the repeater into the power outlet and continue as soon as you see LEDs glowing on the device.
  4. Connect to the repeater using the ftp command with its IP address 192.168.178.1.
    • On Debian (and many other Linux distributions) you can e.g. use ftp -pnvd 192.168.178.1. This will automatically activate debug and passive modes.
  5. Execute the following commands within the FTP session:
    • Replace openwrt-21.02.0-rc1-ath79-generic-avm_fritz1750e-squashfs-sysupgrade.bin with the path to your upgrade image.
    • Make sure your OpenWrt image is in your working directory or, e.g., use the absolute path.
quote USER adam2
quote PASS adam2
binary
debug
passive
quote MEDIA FLSH
put openwrt-21.02.0-rc1-ath79-generic-avm_fritz1750e-squashfs-sysupgrade.bin mtd1

After you read 226 Transfer complete you can disconnect the repeater from the power outlet.

FIXME Find out flash layout, then add the flash layout table here (copy, paste, modify the example).

Please check out the article Flash layout. It contains examples and explanations that describe how to document the flash layout.

FIXME The instructions below are for Broadcom devices and only serve as an example.
Remove / modify them if they do not apply to this particular device!

This section deals with

  • How you install OpenWrt from a device freshly opened
  • The steps required such as reset to factory defaults if the device has already been configured

Note: Reset router to factory defaults if it has been previously configured.

  • Browse to http://192.168.1.1/Upgrade.asp
  • Upload .bin file to router
  • Wait for it to reboot
  • Telnet to 192.168.1.1 and set a root password, or browse to http://192.168.1.1 if LuCI is installed.

Specific values needed for tftp

FIXME Enter values for “FILL-IN” below

Bootloader tftp server IPv4 address FILL-IN
Bootloader MAC address (special) FILL-IN
Firmware tftp image Latest OpenWrt release (NOTE: Name must contain “tftp”)
TFTP transfer window FILL-IN seconds
TFTP window start approximately FILL-IN seconds after power on
TFTP client required IP address FILL-IN

generic.sysupgrade

FIXME These are generic instructions. Update with your router's specifics.

  • Browse to http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/ LuCI Upgrade URL
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot

If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line. There are two command line methods for upgrading:

  • sysupgrade
  • mtd

Note: It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

sysupgrade

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc

mtd

If sysupgrade does not support this router, use mtd.

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
mtd write /tmp/xxx.abc linux && reboot

This section explains how to restore original OEM firmware if the device is flashed with OpenWRT or the firmware is bricked.

You will need the following items:

  • A computer with Wine (wine32) installed (tested w/ version 4.0) and an Ethernet port.
  • Ethernet cable
  • AVM recovery utility (Download), e.g. FRITZ.Repeater_1750E-07.21-recover.exe

The following steps are necessary to restore your repeater:

  1. Prepare your NetworkManager with a static Ethernet connection
    • Use a static IP address in the 192.168.178.0/24 subnet, e.g. 192.168.178.10
  2. Keep the repeater off the power socket and connect the Ethernet cable with your computer
  3. Run the recovery utility, e.g. by executing wine FRITZ.Repeater_1750E-07.21-recover.exe
  4. Click “weiter” until a window pops up
  5. Select your Ethernet adapter in the pop-up window (“übernehmen”) and continue with “ok”
  6. The utility will now wait for the repeater to become available
  7. Connect the repeater to the power outlet and as soon as possible select the prepared static IP profile with NetworkManager
    • The utility should log the process of deleting this and flashing that
    • After some minutes the repeater is restored and you can close the utility
    • (If the connection fails you can use an Ethernet switch as described in the OpenWrt install procedure above to get a steady connection)
  8. The repeater can be unplugged from the power outlet and will boot OEM Fritz!OS next time it is connected

generic.debrick

Use the OpenWRT FTP install process or OEM Restore described above to restore the repeater if the firmware is bricked.

Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

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

The default network configuration is:

Interface Name Description Default configuration
br-lan EXAMPLE LAN & WiFi EXAMPLE 192.168.1.1/24
vlan0 (eth0.0) EXAMPLE LAN ports (1 to 4) EXAMPLE None
vlan1 (eth0.1) EXAMPLE WAN port EXAMPLE DHCP
wl0 EXAMPLE WiFi EXAMPLE Disabled

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

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

Port Switch port
Internet (WAN) EXAMPLE 4
LAN 1 EXAMPLE 3
LAN 2 EXAMPLE 2
LAN 3 EXAMPLE 1
LAN 4 EXAMPLE 0

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!WLAN Repeater 1750E has the following buttons:

BUTTON Event
EXAMPLE Reset reset
EXAMPLE Secure Easy Setup ses
EXAMPLE No buttons at all. -
General
Brand AVM
Model FRITZ!WLAN Repeater 1750E
Versions
Device Type Range Extender
Availability Available 2020
Comments - general See also https://boxmatrix.info/wiki/FRITZ!WLAN_Repeater_1750E
OpenWrt Support
Supported Since Commit https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=8918c038f330a1bb5a898d80c170caf9f42cac89
Supported Since Release
Supported Current Release 21.02.0
Unsupported
Hardware
Bootloader EVA
Target ath79
System-On-Chip
CPU MHz 720
Flash MB 16
RAM MB 64
Network
Ethernet 100M ports -
Ethernet Gbit ports 1
Switch -
Modem -
VLAN ¿
Comments - network ports
Wireless
WLAN 2.4GHz b/g/n
WLAN 5.0GHz a/n/ac
WLAN Hardware Qualcomm Atheros QCA9556, Qualcomm Atheros QCA9880
Detachable Antennas -
Comments - WLAN
Interfaces
USB ports -
SATA ports -
Serial Yes
JTAG ¿
Comments - USB & SATA ports
Misc
LED count 4
Button count 1
Power supply 230 VAC, 50 Hz
Links
Forum Topic URL
WikiDevi URL
OEM device homepage URL https://avm.de/produkte/fritzwlan/fritzwlan-repeater-1750e/
Firmware OEM Stock URL https://avm.de/service/downloads/?product=fritzwlan-repeater-1750e
Firmware OpenWrt Install URL
Firmware OpenWrt Upgrade URL https://downloads.openwrt.org/releases/21.02.0/targets/ath79/generic/openwrt-21.02.0-ath79-generic-avm_fritz1750e-squashfs-sysupgrade.bin
Edit the underlying data View/Edit data

Front:
Front of the case

Back:
Back of the case

Bottom:
Bottom of the case

Backside label:
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!WLAN Repeater 1750E
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

None so far.

COPY HERE THE BOOTLOG WITH THE ORIGINAL FIRMWARE


COPY HERE THE BOOTLOG ONCE OPENWRT IS INSTALLED AND RUNNING


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

FIXME Add tags below, then remove this fixme.

How to add tags

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  • Last modified: 2021/06/13 15:14
  • by tinx