[Samsung Galaxy S9  Themes, Apps, and Mods] TMCThomas:
Hello everyone, you might all remember the samsung app called Game tuner which was for me really a game changer. Especially the resolution option it offered. As you might know samsung caps all the games on their devices to 75% resolution, so your never getting that 1440P image probably to save power. Now with most games this isn't an issue, I honestly don't even notice it. However games which include "pixel art" do suffer issues. For example rollercoaster tycoon classic. Which honestly does not look good because it's not 1:1, it's especially noticeable when you zoom out, everything becomes a pixelated mess. Here's an example, the first image is from my s5 which does still have a working game tuner (put to 100% of course otherwise it's the same mess as the s9), as you can see things are nice and sharp, the second image is from my s9.

[IMG="Galaxy s5 with gametuner 1080P"]https://i.postimg.cc/j5c0vbFv/Screenshot-2019-09-21-21-52-15.png[/IMG]

[IMG="Galaxy s9 without gametuner "1440P""]https://i.postimg.cc/mkrx5nx4/Screenshot-20190921-215325-RCT-Classic.jpg[/IMG]

So naturally I would love to get game tuner back, so that's what I tried. Now the main cullprit seems to be the Samsung Game optimizing service. Because Game tuner has worked on android pie for me, it stopped working after a certain update from the optimizing service, with that update game tuner stopped working and now display's something along the lines of please update the game optimizing service. So my first idea was to to revert to an older version of the service, unfortunately it wasn't quite as easy as it sounds. I'm trying to do this all on an unrooted s9 btw. Since it's a system app I couldn't just remove and reinstall it, so I tried to uninstall updates which didn't quite work. Than I tried to edit the apk of an older version of the service so it had a higher version code than my current installed version with APK Easy tools (decompiling it, chancing apktool.yml and recompiling). Which unfortunately didn't work, it spit out the following error on ADB: INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package signatures do not match the previously installed version; Now i'm definitely not an expert on this topic and didn't know how to fix this it's different from the normal upgrade error though which is: INSTALL_FAILED_VERSION_DOWNGRADE so i kinda felt like I made progress but since I didn't know how to fix this new issue I left it as a Dead end (if anyone knows how to maybe fix this, please let me know). So I went with a differente route I tried to uninstall it completely with ADB so I used this guide on XDA: https://www.xda-developers.com/uninstall-carrier-oem-bloatware-without-root-access/ (which uses the following command to "remove" and app/package: pm uninstall -k --user 0 <name of package>) And it indeed disappeared from the phones app list, but when I tried to install the older version It still didn't work, on the phone the installation failed again, and on pc I got the same error messages didn't matter if I used the edited APK or the normal (old) one. I did some more research but I couldn't really find a solution, it's a rather unique problem I guess. My rather limited knowledge about android development and ADB didn't really help either. So now my question is, does anyone know a way to make it work? I pretty much just want to change the resolution from 75% to 100% on games, so It doesn't necessarily have to be Game tools, any other tool which could do the same thing would also be perfect. As long as I'm able to remove that pixilated mess from the game.

TL;DR:

Need Game tuner or something else to change the default game resolution from 75% to 100%, tried a lot of things to get it working again by downgrading the Samsung game optimizing service, but couldn't get that downgraded. Does anyone know a solution?

Greetings Thomas Mulder

EDIT: hah while proof reading this post I noticed the aspect ratio of the second image wasn't right which reminded me of something else, the s9 forces an aspect ration of 21:9 on the game. RCT classic does not like this which causes the mess. So that kinda fixes my RCT problem, still not as sharp as could be but way better now. If anyone still has the answer to a fix for game tuner I would stil gladly receive it though!