Have been struggling for quite a while with our BOSS GT6. I was then playing a 50th anniversary edition Strat and a LINE6 amp through my BOSS. I was using it for two years or so when it started to make some annoying problems...I mean, very annoying. Imagine yourself in the middle of a gig- burried in the emotion with the song..suddenly my patch parameters change by itself. Basically changes and ruins the moment. Right in the middle of a riff ( a heavy riff) with gain to near feedback and then the sound dops immidiately down to.....a just a little bit of CRUNCH. For a while I thought it could be due to an almost dead back-up battery so I tried changing it...didn't solved the problem. Desperate enough, I went to a local music store and asked if they can fix it. Apparently, they don't have the expertise and the answer to my problem, and by the way...they are selling BOSS line of equipments. Isn't that weird-selling products and don't have post- purchase customer support? Anyway, I was forced to consider buying another set of guitar EFX-hoping that I'd be able get back on track. Finally,Long story-short...we got the SKB PS55 and a couple of stomps> a BUD-Wah peadl> Ibanez TS> L6 echo park > Dunlop VIBE> Boss TU2 and a FS volume pedal. Seemed pretty good playing with some basic EFX but then I still needed the ease of having the desired effect with just a simple tweak-like the GT6. I revisited the past and once again build hope-to use my GT6 again.It's been like 5 years now. I began digging for solution in the net, and guess what? a dozen or so have problems with their GT6 like mine, no one was able to fix them technically. Some said a new chip would fix it (just a guess) some said buy a new one!! or a couple of factory reset might work. I came across a forum and someone said he had same problem with everyone else and all he did to fix it is,tah duh!CLEAN IT! That's ridiculous, I responded-but who knows, I thought. So I unscrewed basically everything, disconnected every connectors. I've always been fascinated with circuits and boards,yet, I don't have a formal training nor a degree with it. I started cleaning the board surface with a paint brush and discovered how thick dust can be in ten years. No joke, it was the first time ever as far as I can remember. After a few more brushing and un-flaking the rust build up between circuit poles, I assembled back the whole thing. I turned it on-with doubt yet anticipating...and my GT6 is back to normal! It's now working great just like brand new!! Who would have thought that a simple brush and of course a dose of patience, can bring the whole thing back on track? I used it last Sunday's worship and never had the problem, never again. Thanks to a simple tip! I bet you'd agree that CLEANLINESS is PLAYLINESS is GODLINESS!