After some years of use we stop and clean C3G124-48 and also replace internal bateries after doing that never more the switch boot up to operational code.
We think the system lost the firmware due to replacement of this battery (is this possible??)
The system goes only to this line and stops.
Enterasys C3-Series Boot Code...
SDRAM Circuit Test of 255MB
How is possible to load again the firmware to the unit on this status.
Thanks in Advance