EM160 FOTA FIrmware over the air upgrade

Is it possible, via AT commands, to upgrade from version 05 to 07 with routerboarb RBM11G ?

Hi,
Thanks for your query in Quectel forums.
FOTA does not currently support full package upgrades, but can support DFOTA differential package upgrades.
Thanks.

hi, what is it, how to do it, I would like to update the firmware from v05 to v07