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Please help -- I would be most appreciative of any feedback or suggestions. I had some strange issues with my A7II which has NOT been dropped, spilled on, stored in hot or cold environments, or tossed about: * first the shutter speed changed randomly in Manual (and all other modes) without me changing it * after updating firmware, and initializing the camera, the camera behaved normally for one day * on the next outing the ISO constantly changed on its own, without me touching it, in Manual (and all other modes) -- and I could not set it As a result, I sent the camera in for service. Diagnosis: bad "Mounted C Board" (??? I think that is the name of the part the tech named in her phone conversation with me) which they replaced. I'm concerned as I've only owned the camera for 3 months and have taken excellent care of it. I have 2 questions: 1. Does anyone know what the "Mounted C Board" is? 2. ..and if the Mounted C Board was bad, is that an indication that I may have a lemon-- that other parts will also go bad as well without reason? Thank you.