Bootloader exchage defaul passwd fritzbox 7530 PI

[gobi2000]

Hello, I have a fritz 7530 pi to which I changed the nand flash, the bootloader was deleted, I rewrote the nand from another fritz 7530, at this moment the label no longer coincides with the passwd wifi and serial number data, with those on the label, I have the data from fitz donor on it, my question is can these passwd wifi and serial parameters be modified in the bootloader so that they are the correct ones that are on the label?