Question Change screen gamma? - Samsung Galaxy Tab A7 Lite

I've used xgamma on linux to make terrible screens usable.
Having searched around I believe I would need to root the device. I'm fairly new using android, and was quite happy debloating with adb - but the screen is just bad, I should have sent it back but it's too late now.
I read about Kcal, will this work on the a7 lite? Or would there be another software to adjust RGB gamma levels?
Obviously, there isn't much point in me rooting it, if there is little to no chance to fix the gamma.
Any advice would be much appreciated
J

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[Q] optimized Kernels

Hi, Everbody
First of all excuse me for my bad English. I was a Galaxy s user until my phone was stolen. I am thinking of buying a Atrix, but before i do this i would love to know some things.
On my galaxy s it was very easy to make modification by flash en that kind of stuff. I want to know if this will be available for the artix to ? Manly i want to know if KERNEL modification is possible for faster, compatible, stable, and good battery life. On my galaxys these kernel modification really made a lot of differences. Other points are :
Improving the display or video and sound quality by modification of kernels.
Universal lagfixes Like changing the file system or something like this.
Brightness tweaks
Adjusted kernel HZ value to increase smoothness.
On atrix, the bootloader hasnt been hacked into yet but it is in progress so no kernels as of now. The problems suchs as lag fix and HZ values I feel are not neccesary on this device but I am sure we will see custom kernels soon enough
Thank you very much. I dont remember anything about bootloader with the galaxy s. Must be the downlaod mode in wich you can flash kernels in to the phone ?
Motorola has locked the bootloader on this device(and many others) so right now custom kernels are not possible and nobody knows when...if ever.
If you want kernels I would not hold out on the Atrix, it has an encrypted bootloader. This will be very hard to hack, but if anyone could do it it's the devs on XDA. If you want something on ATT that will give you lots of development options go for the inspire or buy another captivate. I bought the inspire and i like it alot. But you don't get the dual core and some other features that the atrix has. I guess you gotta just know what you want, either development or better specs. For me I will always go for the development.
I love development , but i also like the atrix. I get the feeling that motorola is not so development friendly. I'll wait a little longer maybe somebody can change this development problem.

[Q] Disabling screen sharpening

Hi,
I'm kind new to SGS2, coming from a Milestone background with mostly CM roms (kabaldan is an amazing XDA member!)... it's a very different world indeed... =]
Right now, I got my SGS2 for 2 days, already rooted with CF and just returned to stock KE4 kernel to compare/test battery life and other stuff before choosing a kernel to stick... I'm liking the device a lot, it is powerful and compact, maybe it could replace my standalone music player too (O2)... but one thing really catch my eye in the device's screen and it is hard to ignore, the screen sharpening that happens in the, otherwise beautiful, samoled+ screen... is there any way to disable this "feature". I know many of you may like it, so I'm all for choices, but specially working with feature films and images/display background, this kind of effect (sharpen) really bothers me.
So, if anyone has any info about changing/disabling this effect, I would really appreciate.
Tks.

@Supercurio starting to crack screen tuning

I know theres been a lot of talk on SAM-OLED+ screen colors. It looks like supercurio is starting to figure this out and if you know his work with Voodoo then you should follow his new screen dev tools.
supercurio said:
Its very interesting to see there are mostly 2 screen revs on market.
In theory there's also a third one, named M2 instead of SM2 but nobody reported it yet.
I don't know if there is physically a lot of different between SM2 A1 and A2 lines but I can tell both have a different color profile (gamma table set) applied.
A1 profile is a bit more greenish, A2 more blue and a bit brighter globally.
I'll soon let you switch between gamma table sets and let you choose which one you prefer.
Click to expand...
Click to collapse
And also for the skyrocket guys (I don't really check that forum)
After more study, I now believe I can fix Tmo #GalaxySII screen rendering issues: would require writing an additional kernel driver.
Click to expand...
Click to collapse
Great to have him working on SGSII!

[Q] Galaxy S2 ICS ability

Hi,
Anyone out there with experience of Android updates to older phones and how well they handled it.
I ask because I want to know about the Galaxy S2 and how well we expect Android 4.0 (ICS) to be implemented.
Of course, it will come out at some point, but my primary concerns are whether it will add to the battery power needed burden to make things run smoothly as it will retrofit the S2 hardware.
I also want to know how easy it is likely to be to replace the on screen buttons with the S2 hardware buttons, as this will be a waste of screen space on the S2 if it is still to pop up there above the hardware buttons.
Any help and other thoughts on the matter will be much appreciated.
wyase9 said:
Hi,
Anyone out there with experience of Android updates to older phones and how well they handled it.
I ask because I want to know about the Galaxy S2 and how well we expect Android 4.0 (ICS) to be implemented.
Of course, it will come out at some point, but my primary concerns are whether it will add to the battery power needed burden to make things run smoothly as it will retrofit the S2 hardware.
I also want to know how easy it is likely to be to replace the on screen buttons with the S2 hardware buttons, as this will be a waste of screen space on the S2 if it is still to pop up there above the hardware buttons.
Any help and other thoughts on the matter will be much appreciated.
Click to expand...
Click to collapse
To say anything on how it will be implemented on the S2 would be pure conjecture. No one knows yet.
Its still in the middle of being ported/hacked over to our device, with no official Samsung ICS Roms released/leaked yet.
Regarding the 'on screen button' query, it would seem that ICS would detect capacitative buttons, and thus hide the on-screen buttons.
Hi,
First of all i wouldnt class a Galaxy S2 as an older phone, samsung have made a point of holding back on the Galaxy Nexus hardware so it doesnt outdo there own flagship model.
Yesterday, I compared a Galaxy Nexus to my Galaxy S2 running the ICS alpha and was slightly disappointed that the Galaxy Nexus screen didnt look any different to my GS2 both in screen real estate and screen clarity.
I doubt very much ICS will reduce battery life as the hardware acceleration should help matters as there will be less reliance on the phone CPU to draw things the GPU can draw easily.
The onscreen buttons can be easily disabled and dont offer anything that the GS2 hardware buttons dont. If anything the GS2 has the advantage of a menu button which you dont get on the Nexus and until the majority of apps put a software menu button on their apps it's going to cause issues, i thought that the software buttons would be more intellegent and add a menu button for legacy apps but they just seem to stay the same buttons all the time. I know paul o'brian has done a custom mod for this so hopefully google with do the same.
I personnally am happy with my GS2 hardware, the issue for me is software and whether i can wait for 4.0 either official or unofficial.
graemefaulkner said:
i thought that the software buttons would be more intellegent and add a menu button for legacy apps but they just seem to stay the same buttons all the time.
Click to expand...
Click to collapse
There actually IS a "virtual menu button" for those apps who use the menu.
But it's rather small and easy to miss.
It's on the far right, looks like three dots above each other, I could use all "old" apps I tried so far with it and effectively not using the "real" buttons at all.
I hope if ROM cooks tend to remove the on-screen buttons, they keep an option to re-enable them, 'cause I really like them
(and they are NOT showing up in the SDK emulator, so it does seem to have some kind of detection.)
ICS does not show the Virtual Buttons on devices with HW Keys.
Thats an absolute, 100% given, please stop discussing about it.
The Galaxy S II has a better GPU and a CPU I'd call Equal with the one of the Galaxy Nexus, also the screen has a way lower resolution, so it might even run smoother than on the Galaxy Nexus,
But what about future apps.....if they are built to a standard 720p resolution, then will the Samsung galaxy S2 suffer then compared to the Nexus which has similar spec - ie do you think we will get new apps that will run better on a 720p screen which looks likely to be more standard in all future high spec phones ?
In my opinion, Galaxy S2 will perform much better on ICS than Gingerbread, considering ICS will actually utilize DUAL-CORE efficiently, rather than just burning battery on two-cores just to work one-core...
It's like XP before & after SP2
wyase9 said:
But what about future apps.....if they are built to a standard 720p resolution, then will the Samsung galaxy S2 suffer then compared to the Nexus which has similar spec - ie do you think we will get new apps that will run better on a 720p screen which looks likely to be more standard in all future high spec phones ?
Click to expand...
Click to collapse
You are trying to find a future-proof a device. Well - it ain't gonna work. Technology moves at a quick pace. At most - I can say GSII may work super well with all apps (and games) until a point when it has become the standard for all screen resolutions to be 720p or 1080p or 9040p. This may be in 2 or 3 years.
Besides, an app developer would make their app compatible with all devices UNLESS they intended it to run purely on a certain resolution.
Nexus phone isn't better than the GSII by the way. It just has ICS on it. =/
Thanks for all of you inputs guys.
Sounds like the GS2 will work as well with ICS if not better.
It also comes across that although the screen size if the GS2 is smaller than the GNex, it is more or less cancelled out seeing as the GNex has to use some screen for the virtual buttons at the bottom, wheras the GS2 will not have to use any screen on this.......therefore negating the screen real-estate difference.......right ?
Then it only comes down to resolution between the two.
For a much lower resolution, the GS2 still looks amazing to the eye, which makes me wonder what the real worls advantages will be of the higher resolution screen on the GNex.
Could it be the web page layout or looks when they load up ?
Could it be noticed when playing media ?
I am not sure anymore.
Ideally the resolution advantage comes into play during
1. Browsing, especially while reading small text as very small letters can be drawn accurately.
2. Pictures will be more clearer, especially some wallpapers do ask for more resolution.
3. Video playback
Altogether everything will appear more smooth and clear. So a welcome thing this resolution is. But nexus has pentile display and there are chances this might offset the resolution advantage mainly during text diaplays
Sent from my GT-I9100 using XDA App
I agree with the last comment to an extent. But we are talking about a phone screen with hundreds of pixels already.
To the normal user in the real world, do you still think that applies ? Ie the text might be a little clearer, but is it not darn clear already on the lower GS2 resolution ?
And wallpapers - even if it was origianlly a 720p picture and the GS2 resizes it, would the average guy out there be able to distingush ?
wyase9 said:
Hi,
Anyone out there with experience of Android updates to older phones and how well they handled it.
I ask because I want to know about the Galaxy S2 and how well we expect Android 4.0 (ICS) to be implemented.
Of course, it will come out at some point, but my primary concerns are whether it will add to the battery power needed burden to make things run smoothly as it will retrofit the S2 hardware.
I also want to know how easy it is likely to be to replace the on screen buttons with the S2 hardware buttons, as this will be a waste of screen space on the S2 if it is still to pop up there above the hardware buttons.
Any help and other thoughts on the matter will be much appreciated.
Click to expand...
Click to collapse
Here http://t.co/RzNWJWcQ , Have a look how stock ICS looks and works on GSII. And all this is done without any driver source code. Imagine how quick it would be when samsung does ICS with proper drivers.
At least Samsung confirmed they will release ICS to S2. When? That's a different story... Probably late next year.
Please use the Q&A Forum for questions Thanks
Moving to Q&A

ASUS ZenPad S3 10 or Samsung Tab S3?

Hej,
I know that ASUS ZenPad 3S 10 is a new tablet but maybe thre is anyone here that have tested it or know more about it?
I have a Samsung Tab S3(813/2016 version) and from what I read there will probably never be any custom roms for this tablet mainly becouse of the CPU. How about the Asus ZenPad 3S? It is more likely that there will be a custom rom for this tablet?
How does these tablets compare more then what the space says?
About the zenpad
I've had my Zenpad 3S for about three weeks now and I'm actually quite pleased with it. It's fast and very responsive. The screen is awesome, with settings to adjust color temp etc. Nice feel with the unibody aluminium chassi, a bit slippery but nowhere near an iPhone. Camera is sub-par of course, the rear does ok in good lighting. Speakers are loud with surprisingly good sound for a tablet, but it's still a tablet... Battery life is excellent, I manage to go by several days with light use and at least 2-2.5 days with normal use like youtube and facebook. I mostly use mine for reading sheet music though. ZenUI is mostly bad. It's loaded with bloatware, some you can uninstall but others you can only disable. Notification tray has stupidly big icons, very clunky and ugly. Settings are pretty extensive but confusing sometimes. For example, instead of putting Home Screen settings in the settings app under Display or even as a standalone option there (There's one for the lock screen), you have to access a different "preferences" menu from the home screen in order to change something like grid size. Wallpaper options on the other hand is located both there and in the normal settings. So there's definitely stuff to improve, but at least they're working on it with pretty frequent updates.
As for rooting, I have no idea. If enough people root for it (pun intended), maybe.
Let me know if you want to know something more specific about it
Leosen said:
I've had my Zenpad 3S for about three weeks now and I'm actually quite pleased with it. It's fast and very responsive. The screen is awesome, with settings to adjust color temp etc. Nice feel with the unibody aluminium chassi, a bit slippery but nowhere near an iPhone. Camera is sub-par of course, the rear does ok in good lighting. Speakers are loud with surprisingly good sound for a tablet, but it's still a tablet... Battery life is excellent, I manage to go by several days with light use and at least 2-2.5 days with normal use like youtube and facebook. I mostly use mine for reading sheet music though. ZenUI is mostly bad. It's loaded with bloatware, some you can uninstall but others you can only disable. Notification tray has stupidly big icons, very clunky and ugly. Settings are pretty extensive but confusing sometimes. For example, instead of putting Home Screen settings in the settings app under Display or even as a standalone option there (There's one for the lock screen), you have to access a different "preferences" menu from the home screen in order to change something like grid size. Wallpaper options on the other hand is located both there and in the normal settings. So there's definitely stuff to improve, but at least they're working on it with pretty frequent updates.
As for rooting, I have no idea. If enough people root for it (pun intended), maybe.
Let me know if you want to know something more specific about it
Click to expand...
Click to collapse
Hello there!
I have this tablet from few days. I like it a lot, but asus rom really sucks
I can't find any news about custom roms. Do you know something?
The Zenpad 3S 10 finally made it to the US market. Spec wise it's a very attractive unit, especially for the price compared to the Samsung S2's. But I suspect there isn't going to be a lot of love from the XDA dev's due to the MediaTek processor.
radon222 said:
...But I suspect there isn't going to be a lot of love from the XDA dev's due to the MediaTek processor.
Click to expand...
Click to collapse
What's the problem with the processor?
Quick googling found me a couple of guides on how to root the ASUS Zenpad 3S 10 Z500M. Just the root feature should make it possible to get places in terms of removing bloat.
I'll hold on to my v1 nVidia Shield Tablet for now and wait for further development in ROMs and rooting for the Zenpad S3 10.
gubbe said:
What's the problem with the processor?
Quick googling found me a couple of guides on how to root the ASUS Zenpad 3S 10 Z500M. Just the root feature should make it possible to get places in terms of removing bloat.
I'll hold on to my v1 nVidia Shield Tablet for now and wait for further development in ROMs and rooting for the Zenpad S3 10.
Click to expand...
Click to collapse
I hope I'm wrong. But based on the paucity of discussions about this tablet here on XDA while trying to just general info, likes, dislikes etc. I'm not getting my hopes up. If I do go this route I'm going to purchase it for what it is now.
gubbe said:
What's the problem with the processor?
Quick googling found me a couple of guides on how to root the ASUS Zenpad 3S 10 Z500M. Just the root feature should make it possible to get places in terms of removing bloat.
I'll hold on to my v1 nVidia Shield Tablet for now and wait for further development in ROMs and rooting for the Zenpad S3 10.
Click to expand...
Click to collapse
Those quick google results of rooting Asus Zenpad 3S 10 are fake. I did the same when I got my tablet and those articles seem very generic or want you to use an untrusted app from the KitKat or even Gingerbread days.
Leosen said:
I've had my Zenpad 3S for about three weeks now and I'm actually quite pleased with it. It's fast and very responsive. The screen is awesome, with settings to adjust color temp etc. Nice feel with the unibody aluminium chassi, a bit slippery but nowhere near an iPhone. Camera is sub-par of course, the rear does ok in good lighting. Speakers are loud with surprisingly good sound for a tablet, but it's still a tablet... Battery life is excellent, I manage to go by several days with light use and at least 2-2.5 days with normal use like youtube and facebook. I mostly use mine for reading sheet music though. ZenUI is mostly bad. It's loaded with bloatware, some you can uninstall but others you can only disable. Notification tray has stupidly big icons, very clunky and ugly. Settings are pretty extensive but confusing sometimes. For example, instead of putting Home Screen settings in the settings app under Display or even as a standalone option there (There's one for the lock screen), you have to access a different "preferences" menu from the home screen in order to change something like grid size. Wallpaper options on the other hand is located both there and in the normal settings. So there's definitely stuff to improve, but at least they're working on it with pretty frequent updates.
As for rooting, I have no idea. If enough people root for it (pun intended), maybe.
Let me know if you want to know something more specific about it
Click to expand...
Click to collapse
Have you had any luck rooting yet or finding additional hacks for the 3S 10? How about a way to keep the backlight on longer for the back and recents buttons?
I also want to root my brand new ZenPad 3s 10 but I can't find any instructional guide that actually works :S
Can somebody help us???
I think it's dead to root this model. It's a pity because this is a great android tablet with the best sound i experimented.
Cool loud dual speaker but especially the great 3.5mm audio quality. The DAC is realy good.
Root for ASUS Zenpad Z500M
Still no root or roms for the zenpad 3s 10??? Bummer. This tablet has great specs all except for the mediatek processor. I'll have to look for another device then...
I'm still hopeful that this device will eventually get root.
It's a really great tablet, even more so because of it's price point.
Yes, the only reason too root this tablet 4 me is to install adaway and any root features of apps.
I hope in future too, it gaves a guide to root these tablet
I got one for Christmas...Still adjusting to the ZenUi after years near vanilla Android on Nexus and Motorola devices.
@radon222 you can download Google now launcher.
https://play.google.com/store/apps/details?id=com.google.android.launcher
Google launcher was one of the first things I downloaded. But that still doesn't change the pull down/settings menus.
C'mon is possible that nobody else use this fantastic tablet and find a root? I would like to contact some developers....do you know how to do?
Regarding to this post, kernel source was released in mid of december.
Anything new here? I would love to use lineageos on the Asus.
Lineage would be awesome on this tablet.
Hope a developer start working. It's still fun to take out my old TF300 and flash the latest 7.1.1 ROM.
Developers are great.

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