I bought the above mod from Fasttech. The screen gets scrambled often, and sometimes ends up reading backwards (looks as if reading the screen in a mirror). I usually loosen or tighten the battery until the screen gets back to normal. Anyone else experience this? Is this a common issue with a fix? Or do I just have a defective unit? Definitely seems like some kind of loose connection somewhere. If it is defective, I don't think I'll bother dealing with Fasttech on that, shipping costs will probably make it not worthwhile. Anyone have experience dealing with a return on Fasttech? Time is not an issue, I have other devices to use in the meantime. Your feedback is appreciated. I did a google search on "zmax scrambled screen" and didn't find much results.