Can't copy uSD to emmc

Some month ago, I’ve made a backup of a emmc to an sd, with dd.
Now I’ve restored the .img to a new uSD.
If I put the uSD in the BBB the system start and I can login in it and everything seems fine… but I cannot move the system from uSD to emmc.

I’ve tried to ssh and dd the image to emmc, but system don’t start, 3 led are fixed on and nothing happen.

I’ve tried to hold S2 button and power up but system keeps starting from usd not copying it to emmc.

What should I do to copy the uSD to emmc?

Thanks, BR