Can i use Nano(old bootload) burn new bootload to another Nano(old bootload) ?

[This is my very first topic]

I burned bootloader from Arduino Nano (old bootloader) to another Arduino Nano(old bootloader)

After burning I got message "Done burning bootloader." from Arduino IDE

but it's not changed it still was old bootloader I consider why? or it can't?

thanks

When you do a Burn Bootloader, the bootloader for the board you have selected from the Tools > Board menu is burned to the target board. So if you want to burn the “new bootloader” to the target, then you need to select Tools > Processor > ATmega328P before doing Tools > Burn Bootloader.