According to Checklist:
3.3. Supported elements All important media (images, videos, slideshows, and other content that is relevant to the article) that exists in the source must be shown horizontally centered on IV page.

Here the image (with SIM-cards) at the article wasn't shown.

Text is missing

Related articles are missing, but they should be represented. These articles are about privacy / security / GPS / etc, which makes them thematically related to the main article. These articles are not "week-topics" since some of them were written several months ago.
See the Checklist, paragraph 6.3.2 "Related articles" ("It is obligatory to format “Related articles” links using the new <related> tag, provided they are identifiable in the source.").

Those videos doesn't work on your template. I think IV doesn't fully support YouTube IFrame Player API. It's not YouTube bug, here is simple example of working iframe with the first "Sleep as Android" video: https://codepen.io/anon/pen/jdZvgX, which doesn't work in IV.
So, IV doesn't fully support this videos. According to the Checklist, paragraph 3.3: "Check that pages that feature unsupported content do not generate IV pages.". That's why this page shouldn't generate IV.

Page doesn't render

I am not sure about it, but I think these "catalog_rating" should be removed. On the initial page they are a part of the image, but on IV page they make no sense. I hardly believe that user would understand what these floating-point numbers stand for. Moreover they might be dynamic - if a user adds a review on an object its rating may change.

In the original window a brief description of product is displayed as 1 list, not 2. Again, not sure how important that is.

Missed related news headline

App name is not a headline

I'm not sure but looks like anchors are missed

Looks like anchors are missed

Looks like anchors are missed

The image is too small and it is technically possible to obtain the higher resolution version of it. It is fixed in my template. See 6.2.1 from Checklist:

6.2.1 Image quality
When several image resolutions are available, the IV page should use better quality images (within reason). The optimal resolution range is 1280px-2560px, using larger images is pointless. Note that images that are too large (>5 MB) will fail to load.

If for some reason it is only technically possible to obtain low-resolution versions of images (lower than 320px) for a page, on which high-resolution images are available on the web, the page should not generate an IV.

Links to related articles are partly missing, but they should be represented. These articles are about privacy / security, which makes them thematically related to the main article. These articles are also identifiable (see template #31). Furthermore they are static enough - if you update the page, they won't change. So these articles are definitely related articles. According to Checklist, paragraph 6.3.2, they must me represented in IV: "It is obligatory to format “Related articles” <...>".
Even if you perceive these articles as not related, links to them must be in IV since they are not ad or something like this; see checklist, paragraph 3.3: "Anchor links must work properly on IV page if anchor links exist in the source."

Answer to https://instantview.telegram.org/contest/svetandroida.cz/template30/issue1
I've checked the source code and didn't find any <noscript> tag inside / outside them. I have these links in the <article class="post-link"> tag.
What do you mean by "In fact IV shows noscript contents, but not these links."? As I said, I haven't any <noscript> tags in / out of them and I see those links in the "original" & "preview" windows.
Yes, IV shows images from <noscript> tag and I avoid duplicating images only because source page doesn't duplicate any (even if you turn off JS), not because they are in the noscript tag.
If a user can see them on the page without accessing html code, they are not absent.

Missing related articles

This is not a headline

Original images have links to other pages.

No Instant View available

Trivial nested element issue. No usnupported elements, should be generated.

Header is missed, text is not indentet properly. Also, this is an aside, not a blockquote.

Pull quotes are short excerpts from the presented text. They are used to pull a text passage out of the reader’s flow and give it a more dominant position in the post or the article. The pulled out passage should be mentioned somewhere in the text as this pulled out passage refers to the current text, it's a kind of internal quote. Here highlighted blocks are independent blocks of text, not a quotations at all. Therefore it's inappropriate to use <aside> for ".box-note" blocks here.
Here is pretty simillar case: https://instantview.telegram.org/contest/informer.rs/template33/issue2/