lost operational code / firmware due to internal battery replacement ?

[Mike_F_]

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
100%

How is possible to load again the firmware to the unit on this status.

Thanks in Advance

[Alvaro_Prieto]

and it is connected here:
http://es.tinypic.com/view.php?pic=2yye715&s=9#.WUKRS1ElGUk

[Alvaro_Prieto]

http://es.tinypic.com/view.php?pic=bl7nt&s=9#.WUKQrlElGUk

this is the other side

[feldsam]

what about other side of that board? and is that board connected to another one?

[Alvaro_Prieto]

Thank you SO MUCH for your help.
But I have a problem. My switch model is different C2G124 and I can not see that chipset.

http://es.tinypic.com/view.php?pic=262m92e&s=9#.WUKKhVElGUk

T&R

[feldsam]

so it is pretty simple, jut conenct by wire GND - some point on case with that pin 28