I had problems running the auto update - first time through, my S37 'bricked' - when powered on, all LEDS lit, no response from the synth. Then I recalled reading in another thread that the S37 should have a direct USB connection, not via hub.
It was easier to plug direct into a different PC than direct into the one I had previously tried via hub (both PCs running Win 7). This time, the update ran smoothly.
Time for Amos to have a well earned break, but not too long, as I am waiting for the PC editor

Peter