I'm perfectly calm... You're the one that's shouting "NO NEVER" "STOP"
Who's talking about proof of bugs??? People only post bugs to see if others have had the same problem, for advice on workarounds, or to highlight a potential issue to support staff (who can easily recreate and investigate locally).
My only issue is with your first replies... You could have replied once, stating just said you'd visited the factory, you'd seen this model, and know it was a Rockchip-based version... I would have accepted this.
But no, you had to say "we all are sure of this" and "it's rockchip simply because we know it"... Like you're part of some elite group of experts and somehow better than the rest of us
Even now the so-called experts still can't agree on what versions of the T39 were sold where and when!
I'm just pointing out that you're "more likely" to present a biased view... I'll leave it to other people to read your posts and decide. However, it is common courtesy to highlight in your signature that you are affiliated to particular brands/resellers/products.
It's kind of ironic that this forum is now called "MP4 Users", when it's dominated by a few people who have an interest in selling/reselling these products. If you all just sit around praising Teclast products to the skies then the firmware won't improve and we won't get better products.