[Galaxy Note 10.1 Q&A, Help & Troubleshooting] JuniorGG:
Today I went to other 4 different stores, up to 20 km far from where I live (I live in Venice, Italy, and my Note is the version sold in Italy, with italian "ITV" firmware). (EDIT: Attached is a screenshot showing my model's data. The inscription on the back of it says Made in Korea by Samsung)

Well: ALL the notes on display in ALL the stores had EXACTLY the same issues as mine and yours. And by axactly I mean exactly: same position, same pattern, same light pressure, etc. BOTH the issues. Enough said....

And I'm referring to BOTH the isues: the one that is visible as a "jump" of the s-pen trace, and the one visible as a zaggy line when slowly drawing an oblique line with the finger.

Barry: I've seen your video, but you're not doing it right. You're drawing too fast.

See my video of the issue and how to make it appear (sorry for the bad quality and the upside-down frame due to a problem in youtube uploading):

[YOUTUBE]WaTm4CS0gEA[/YOUTUBE]

And also my video of the touchscreen issue:

[YOUTUBE]4rGQWeDO5UA[/YOUTUBE]

I repeat again: in my humble opinion, both issues, especially the one of the s-pen are clearly hardware issues (more precisely, they are

design flaws

), and as such they have nothing to do with firmware, drivers, or whatsoever. For the issue of the s-pen digitiser, this is especially true, see for example the fact that the vertical line pattern fades to the point of disappearing on the upper part of the screen, in an "analog" manner that can't be due to software.

It is also clear that at least quite a number of Notes are affected by this issue. At least all the notes sold in my area (see the result of my trip), plus yours and who knows how many others. And both N8000 and 8013 are affected (because they are practically identical inside, for what matters here). As for software remedies, and/or adjustment to the stylus, I can say that I've already tried almost everything in that concern myself, and got no improvement whatsoever.

The bottom line is that if you live in a country like mine, where the only option you get from samsung is a repair, you know that samsung will hardly admit the issue and quite probably after keeping it for a month, will return it to you untouched saying that they do not find that your unit is defective, either because the can'r repair an issue that is due to a design flaw without re-engineering the entire tablet, or because they know that the issue is so widespread that they do not want to start repairing so many faulty tablets, or simply bacause their technician fail to reproduce the issue.

Imagine in fact, if it's so difficult to make the owners reproduce the issue, how difficult it will be to find a samsung technician with enough good will to do it!

I also did not notice these issues the first couple of weeks. Instead they were and are definitely there from factory, since I have just checked that all the units on display in the stores near my living area are equally affected. For sure, this can explain why so few people complain, whereas all the rest swear that their units are not affected by these issues.

mmm... yes, of course mine is just a theory. I may be totally wrong, I'm the first to say. However I am not too sure that the battery cables run diagonally. Please watch carefully this video and in particular, watch it at position 40:32

http://www.youtube.com/watch?v=PUyI74c0DhE

As you can see, I'm guessing that the battery "wires" (or more likely flat copper strips) are running vertical underneath the white ribbon strip crossing the middle of the battery, Actually, the battery looks like it's a pack consisting ot two internal elements, left and right, with a vertical power "bus" in the middle...

Btw, could you post the picture you mantioned, or a link to that?