Originally posted by chhayanat GX20 came back from Samsung-authorised repair shop. They found nothing wrong with it and said that it was not being shaken enough for the OIS mechanism to activate (this seems a bit of a stretch). I tried to replicate the conditions in which the OIS did not operate in the past and found that it does function now.
One supposes a further period of observation is needed to see if recurs.
After returning from the workshop, the OIS gradually deteriorated and in April 2011 gave up altogether: it did not activate irrespective of the OIS switch position, the type of lens fitted, or the capture mode selected.
After writing to Samsung Romania they agreed to have their authorised repair shop look at it again. Extracts from their reply explain themselves: " The defect wasn't the switch itself, but it was mechanically misaligned and lever was not action on switch's button...the switch was put in correct position... Regarding yours last year complain, I am sure (and service is) that this defect was there at that time but the switch was probably not so much displaced."
The OIS works properly now. Samsung Romania have shown rare sensitivity to a genuine complaint which is why I am reviving this old thread, to let forum members know.
Chhayanat