there is no way to extract the firmware with TFTP?

THIS IS THE ROUTER OF MY NEIGHBOR

I made a backup of my neighbor's router and loaded it to my router but it does not work

apparently my operator gives me a modified firmware My ISP requires enabling the VLAN, but the default WR740N does not bring it, but my neighbor's firmware does. and we both have the same router and...

Hi everyone SOMEONE KNOWS HOW TO MAKE A BACKUP OF THE FIRMWARE TO USE IT IN ANOTHER ROUTER OF THE SAME? MY NEIGHBOR HAS A ROUTER WITH A MODIFIED FIRMWARE WITH MORE FUNCTIONS, (VLAN AND TR-069) AND I...