If you dig through the pprune thread on the Lion Air crash you'll find some schematics. The stabilizer trim switches cut power, but the circuits and switches a

If you dig through the pprune thread on the Lion Air crash you'll find some schematics. The stabilizer trim switches cut power, but the circuits and switches are different between the NG and MAX generations. Assuming there was no damage from the near constant adjustment, disconnecting electrical power from the stabilizer trim motors almost certainly would've resulted in an improvement.