Gradius2, THANK YOU VERY MUCH!!! I repaired my ST31000340AS SD15 by your tutorial. Circuit from http://forum.hddguru.com/tutorial-resolve-...ize-t11040.html was soldered and works fine. spellcasterbr I did power off ONLY before the last command: F3 T>m0,2,2,,,,,22 (This is my choice)