Originally posted by kernos There is the possible temporary solution of blasting off 100 or so shots (at 5mb or so) by holding the button down. Worked for me with a repaired K50 that hopefully has the latest solenoid. Might work as replacing the solenoid is expensive through Precision. But, by all means look at the thread.
Don't recommend that. Some people have damaged the shutter mechanism doing this.
All sorts of people will come out of the woodwork claiming miracle cures for this problem.
Replacing the solenoid with a white donor one is the only long term solution. Everything else is a band-aid in my opinion.