[Galaxy S III General] nguyentuanhoang:
In 2015, Galaxy S3 is a quite old device. It was introduced in 2012, with a lot of supporters around the world. I think it is the best smartphone of Samsung ever. And in 2015, it is still a good phone with latest software update from other developers

These are my combinations of roms, kernels, mods and tweaks of my Galaxy S3 (i9300). I think it is the best combination ever, with good performance and experience. Remember that this is my own opinion, so maybe it won't appropriate with somebody. Anyway, let's get start!!!

ROM

Cyanogenmod is undoubtedly the most popular and best-performance rom ever. It is based on Stock Android, so it runs very smooth and has brilliant performance, especially in Benchmark Test. Android 5.0 Lollipop is released, then our S3 has a very good CM12 rom with latest software version. I have used this rom for 4 months, and I do not expect anything more about my phone because it runs PERFECTLY.

Link for Cyanogenmod 12 rom: http://xdaforums.com/galaxy-s3/development/wip-cyanogenmod-12-t2936990

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KERNEL

Since Siyah kernel is end-of-development, Boeffla Kernel is a perfect alternative. This kernel brings us a lot of things : change CPU governers, overclock CPU (up to 1600 Mhz) and GPU (640 Mhz), sound tweaks, undervolt CPU and GPU, etc. It lets us to control our devices freely and effectively. It also gives us brilliant battery performance.

Links for Boeffla Kernel i9300: http://xdaforums.com/galaxy-s3/development/kernel-boeffla-kernel-2-2-stable-27-03-t2449408

MODS

When I bought my Galaxy S3, I soon realized that is had a poor sound experience. So I looked for a sound mods that it improves my phone speaker. And fortunately, I have found a thread that had an amazing work: ACID Audio Engine. It gives me many positive improvements with i9300 sounds, and I have the best sound experience ever.

Link for ACID Audio Engine mod: http://xdaforums.com/galaxy-s3/development/mod-acid-audio-engine-v5-0-samsung-t2002197

APPS & GAMES

I am a student, so I do not have much working or business apps. These app below are mostly entertaining apps : music, games,…

Google Camera: easy, simple and functional interface

https://play.google.com/store/apps/details?id=com.google.android.GoogleCamera

Inbox by Google: a beautiful Material Design email app, and officially published by Google

https://play.google.com/store/apps/details?id=com.google.android.apps.inbox

Google Keep: easy for taking notes with texts, images and many cute symbols…

https://play.google.com/store/apps/details?id=com.google.android.keep

Zedge: up-to-date beautiful wallpapers, ringtones and other stuffs.

https://play.google.com/store/apps/details?id=net.zedge.android

Wolfram Alpha: as a student, I have to do a lot of calculating exercises. This app is my perfect assistant at school, especially in Maths lessons.

https://play.google.com/store/apps/details?id=com.wolfram.android.alpha

Fenix: my daily Twitter app

https://play.google.com/store/apps/details?id=it.mvilla.android.fenix

Seeder: it is undeniable that many Android devices become slower and slower after long time using them. Seeder helps us to prevent this problem. It gives us a smooth experience with no lags and FC’s.

http://xdaforums.com/showthread.php?t=1987032

Xposed Installer + Gravity Box(LP) : best apps for interface editing, mods, and tweaks

http://xdaforums.com/showthread.php?t=3034811

Ram Manager Pro: a lot of RAM options, swap RAM (up to 2GB), friendly interface.

https://play.google.com/store/apps/details?id=com.smartprojects.RAMOptimizationFree

FIFA 15: Since FIFA 16, in my opinion, is not as good as FIFA 15 (graphics problems, worse user interface,…), I am still playing with my own Ultimate Team. Best Sport app ever.

https://play.google.com/store/apps/details?id=com.ea.game.fifa15_row

Asphalt 8: Racing games with a lot of cars, roads and game modes, brilliant graphics.

https://play.google.com/store/apps/details?id=com.gameloft.android.ANMP.GloftA8HM

Leo’s Fortune: This is the best graphics games ever…

https://play.google.com/store/apps/details?id=com.leosfortune

TWEAKS & SELF-EXPERIENCE

CPU governer: ondemand

I/O Scheduler: deadline

Max freq: 1400 Mhz

Min freg: 200 Mhz

Undervolt CPU: -75mV
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GPU freq: 160/266/350/440/533

GPU undervolt: -75mV
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Build.prop tweaks:

Fast Reboot

persist.sys.purgeable_assets=1

Render UI with GPU

debug.sf.hw=1
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Increasing It Will Make Mobile Smoother

windowsmgr.maxevents_per_sec=150
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Video Acceleration Enabled

video.accelerate.hw=1
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Increase Performance

debug.performance.tuning=1
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Disable Sending Usage Data

ro.config.nocheckin=1
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Deeper Sleep / Better Battery Life

ro.ril.disable.power.collapse=1

pm.sleep_mode=1
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Disable BootAnimation

debug.sf.nobootanimation=1
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Faster Scrolling

ro.max.flingvelocity=12000
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ro.min.fling_velocity=8000
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