​The Brain Dead procedure performs a hard reset of the Smart-Ups microprocessor. It does not however reset saved preferences.
Resolution:
Brain Dead:
If you have an SUA or SUM unit, you can use this procedure to switch between Serial and USB communications. It forces a ""reboot"" of the internal microprocessor, but it will not erase any stored settings.
Useful for basic troubleshooting as it resets the internal intelligence of the UPS.

For SU, SUA, SUM, or SURT Units:
1) Turn off and unplug UPS from wall
2) Press and hold the OFF button again
3) You may see a quick flash of the LED's and you should hear an audible ""click"" from the UPS.
4) Plug UPS back into the wall and turn UPS back on

For SMC, SMT and SMX Units:
1) Turn off and unplug UPS from wall
2) Disconnect Battery
3) You may hear an audible ""click"" from the UPS.
4) Reconnect battery, plug unit back in the wall, and turn UPS back on

Released for: Schneider Electric Thailand