[T-Mobile Samsung Galaxy S II SGH-T989] supercurio:
Hi everyone!

First thing: be sure I read each message of everyone here in this thread.

I understand there are expectations from everyone, who donated or not. Expectations resulting of Samsung and the press selling Super AMOLED screen as something incredible and never mentioning any kind of flaw to begin with, despite some are documented since day one of Galaxy S first gen.

Before answering this message I took a quick look in my research documents and code, noticed I was working on it since more than 1 year now.

Still I didn't released yet the app I'm planning and working on since a long time. Its been a long journey, with a lot of skills + research and development to learn and complete in the process.

As described before, I hoped for an obvious flaw in color profiles like I seen obvious flaws with hardware configuration in Samsung US devices before. Analysis showed that the color profile should be just fine. But the result is not.

So, what does take time now:

A "quick fix" (concretely: porting color profile from Galaxy S II I9100) not existing, I'm back in the long-term − some would say slow − development schedule.

It also means I have to work on other projects concurrently. Remember, I'm working on this since more than a year, so it's not a matter of a couple of days. And I can't afford working only on T989 until I get satisfying results and is in the state a final release is ready. Experience taught me it's far too unpredictable anyway.

What I'm working on is a comprehensive correction engine. By studying feedback its clear everyone has a different screen.

Its not that hard to modify the response curve of a Super AMOLED screen.

However it's a lot easier to make it worse than bringing any kind of improvement, which is the point.

Galaxy S II T989 display issue being hardware, my recommendation still is to get an exchange if you're disappointed with it. Only Samsung can fix it.

What I will bring is workarounds to the color rendering issue only (and not for lines/blobs/viewing angles color shifting)

Some noticed I talked on twitter about Galaxy Note and that I got satisfying results in a matter of days.

To explain why: Galaxy Note uses a new kind of screen controller and totally rewritten color profile driver, including the algorithms for correction that I'm working on for the older controller+display+driver, which uses static hardcoded gamma profiles values for each brightness level instead.

To say this differently:

- Galaxy Note: 1 color profile that scales through the whole brightness range. Making one fixes the whole thing

- Previous generations: 25 independent color profiles (one by brightness level)

Anyway I'm sure those who noticed I got results with Galaxy Note also noticed that I didn't released anything yet, for 3 reasons:

- Required code to distribute a mod is not written yet.

- Screen app (same for every device) is not finished yet.

- Accumulating more feedback showed once again unexpected variance between sample.

Consequence, I calibrated My Galaxy Note and it seems It won't give useful results on other devices despite what I hoped initially.

Be sure I'm working on as portable as possible code for the Super AMOLED display work. So when I talk about that on twitter, even if it's about another device it means I progress for T989 as well (even if it doesn't bring immediate useful results for this device).

Be sure giving up is not in my plans and that if the initial quality goals I set are unreachable I'll release something more basic, less user-friendly but still giving you some control.

Now, I perfectly understand some are impatient and also appreciate those who trust enough not to worry.

I am impatient myself and work hard on the pile of work I'm sitting on.