I'm in a situation where I don't have working internal shift+ctrl+alt-keys and thusly unable to perform SMC-reset.
Related to others' issues with SMC-updates, there are instructions for re-flashing the firmware using rEFIt and utilities extracted from the official updater. One of the steps are:
SmcFlasher.efi -reset 1
With the description
First need to get the SMC into the right state. "SmcFlasher.efi -reset 1". Your MBP fans should now quiet down.
This is indicative of an SMC-reset.
Does anyone have experience with using this command? Does it in fact reset SMC, or is it a potentially destructive command?