We have a Switch model S4048-ON that after an attempt to update the Firmware the equipment does not 
can no longer boot the system. From a console cable connection it is possible to see the following 
screen:

In some forums we found other users with similar problems, who managed to solve
the problem changing the boot priority order in the BIOS menu, but on our equipment there are the following options:

In the screen above we try to select other boot options and disable the other boot priority orders

We would like a method to restore the functioning of the system, as this is a 
equipment that will have great importance in our network topology. Furthermore, the guarantee 
support period for our equipment expired in March 2023 so we were unable to contact support
by DEll