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

[feldsam]

https://postimg.org/image/3vh13g7cl/

[feldsam]

there is nothing to google  just open case and look for Intel chip marked U19. Dot marks pin number 1, so you have to count to 28, but you dont have, because this chip has 28pins on each side, so 28pin is on other end that pin 1. https://www.usbid.com/assets/partphotos/6B/JS28F128J3D75.jpg

[Alvaro_Prieto]

Thank you so much for your assistance. I will replace the battery and google for some information about short cutting that chip.
Thanks!

[feldsam]

did you open unit? how your problem happens? If you did not open unit and never try to replace battery them your battery is probably dead. So you need new battery, open unit, replace battery, localte that Intel chip. Conenct serial cable, connect power and short cut ground with U19 chip pin 28. Them you should see something about flash format, unit reboots and boot menu should show. you probably need to short cut circuit more times to get boot menu. them flash via xmodem firware version 06.61.05.0009, boot, save config and reboot. unit should be ok.

[Alvaro_Prieto]

I did read that, but I don´t understand it. 😄