Installing OpenWRT on a Fritz!Box 3370 (FTP)

[Ndbruss]

Hello, I'm having problems installing OpenWRT on a Fritz!Box 3370 Subrevision 5, when I try to ftp 192.168.178.1 during boot i receive the error message:

ftp: Can't connect to `192.168.178.1:21': No route to host
ftp: Can't connect to `192.168.178.1:ftp'
ftp> quit

and the same happens if I use lftp with the file in the installation guide (site2).
I execute ftp as soon as I have connection and my IP address on the network tab is 192.168.178.20 /24 and I tried using all 4 LAN ports.
I'm using Linux Mint with Cinnamon and following the guides in these sites:
site1:https://blog.michael.kuron-germany.de/2018/12/openwrt-on-avm-fritzbox-3370/
site2:https://openwrt.org/toh/avm/fritz.box.wlan.3370

What am I doing wrong?
Thanks in advance and Happy Holidays

[acoul]

you need to use lftp according to the wiki guide

make sure your linux box has a static ip 192.168.178.10/24 and your fritz box is powered off while connected to a hub

on your linux box issue the following:

lftp
set net:timeout 1;
set net:max-retries 80;
set net:reconnect-interval-multiplier 1;
set net:reconnect-interval-base 1;
open 192.168.178.1
user adam2 adam2
debug

now you can enter the following command and power on your fritz box as soon as possible:

quote SETENV linux_fs_start 0

upon succession of the above command, you may enter the rest of the commands:

quote MEDIA FLSH
put mtd1
put mtd0
quote REBOOT

make sure you have created the mtd1 & mtd0 according to the wiki guide on the same directory you executed lftp

[Ndbruss]

Thank you very much!
The instructions were clearer than the ones on the wiki and it worked like a charm.