Further to the last big discover for how to revive a dead SDM even the last method didn't work, I've seen this report lately which verifies that the new (escalated) method does work to bring back live again for a dead (stuck?) SDM! :-o
http://www.pentaxiani.it/forum/viewtopic.php?f=1&t=49524&start=15#p678566
(Google English Translation Here)
Nice! Should Pentax should include these two methods into their service manuals of all the SDM lenses such that they need not to provide expensive quotations to the SDM users anymore for total SDM replacements and at least Pentax should try these low-cost repair methods at the first place instead! ;-D
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Wednesday, November 16, 2011
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Comments by IntenseDebate
Hair Dry a Dead SDM Does Work (Again)!
2011-11-16T00:29:00+08:00
RiceHigh
Camera Hacking|Documentation|Issues|News|SDM|Service Quality|System Reliability|
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frank · 695 weeks ago
I guess when you heat up the contacts the metal expands enough to make it work.
RiceHigh 110p · 695 weeks ago
But anyway, I still think that all the affected SDM users are pathetic, and ditto for all we Pentax users, for the case to continue to develop in this way but yet Pentax has not ever responded and come up with a true solution on this disgusting SDM problem, neither with a debugged design nor providing better servicing and support.
Passer · 695 weeks ago
RiceHigh 110p · 695 weeks ago
Simon · 695 weeks ago
Stator and rotor are grinding against each other, leaving traces on the surface, the cheap sonic wave motor has a short life span, probably a quality problem. Had a Nikon kit lens with just the same issue.