I purchased a used Easyshare as part of a lot at an estate sale. It has issues. The lens says it is a 30x zoom. It has no identifiable marks other than Kodak easyshare (no model/serial numbers) and the picture properties on my PC say it is a z981. BUT - a z981 has a 26x zoom, not 30x! Now, it has defects like the LCD flickers, particularly if you try Manual Focus, the settings knob is off by 1 degree and the colors seem out of sorts. Is it possible someone tried to repair a z981 with z990 lens, COMS or other parts? If so, how do I know? I thought of reinstalling the firmware, but WHICH ONE?? Hmmm??