Olympus E-P5 dial malfunction and warranty questions

Thanks Guy, wolfychi, traveller_101, and Allen for your replies. It gave me good material to ponder about over the last few days.

I have tried to rotate the dial fast forward and backwards, and that did improve it much. I conclude that the problem is dirt on the contacts of the rotary dial. I decided to get some more experience with the E-P5 and then figure out what to do.

From your replies I conclude that Olympus has figured out how to repair the defect effectively, and some blogs in Japan appear to confirm that. However, Olympus will charge me at least 12,000 Yen (more than US$100) for the repair, so if I decide to repair, I will first try to disassemble my E-P5 and clean its contacts. There are some Youtube videos on disassembling other but similar Olympus cameras, so I can figure out how to do this, and it will be much fun anyway.

From your replies I understand that you applied some fluid to the dial without disassembling, but I wonder how I can get a drop in. WD40, for example, comes in spray cans, and I am reluctant to spray it in the opening next to the dial. Did you use some kind of pipette to apply fluid? I figure whatever fluid I use, it is best to open the camera in order to apply it.

Finally, I noticed that my E-P5 is less snappy in its operation than my OMD M10 Mark II. This extends to AF operation, and reaction time to any button press. Is this your experience too? It looks to me that technology advanced a lot in the few years between the launches of the E-P5 and the M10 II. Any experiences to share?