Can't write to SRAM

[elcarajos6]

Hello, I can't write to SRAM, after selecting option 5 and a file, it just either appears some dots and a inifinte loop of blank spaces or it just gets a loop on no, I have tried to inject my own dumped save file but I still get the same error, I can't write to SRAM at all.
Everything else seems to work fine, any idea why I can't write to SRAM at all? thanks
I'm using an arduino uno if that helps, I have checked many times my inputs and it's okay