Method #1
Use Adhell 3 to block ads - no root required. (Ignore all the tutorials, literally just install the apk and make and use a SKL key (Samsung Knox License) key

Method #2
How to download and install Adhell 3.1+
In order to install Adhell 3.1, you will need to download the full source code, extract it, open the project in Android Studio, and compile it to install on Adhell 3 APK onto your Samsung Galaxy device. There is no direct APK available right now.

Step 1: Generate the Samsung Knox SDK license key

• Sign in here with your Samsung account.
• The Knox SDK can be downloaded here.
• Click on Generate License Key at the left option panel.
• Go to "Knox SDK" section.
• Give the key a name in "Add a key alias".
• Press "Generate license key".
• Copy the key. Note: The key generally starts with letters "KLM"
• Once generated, the Samsung Knox L:icense key can be obtained here.

Step 2: Download latest Adhell 3.1.1

• Official Adhell 3.1 from Github | Register > Login > Search "Adhell3"

Explore, study, take notes, track your progress and more. Now the world-class educational resources of Khan Academy are right in the palm of your hand. Combining the power of the revolutionary S-Pen™’s note-taking ability with Khan Academy’s award-winning video content, S Educate leverages your existing Khan Academy account to provide a uniquely interactive experience that elevates educational engagement for students, teachers, and all inquisitive minds

DOWNLOAD

Galaxy Gear & Samsung S3 GT-i9003,
Running the 4.3 firmware,
All features of the gear including side loading apps are working

THIS IS ONLY FOR USERS ON MF1 OR EARLIER BOOTLOADER WITH CUSTOM RECOVERY (cwm or twrp)

THIS WILL NOT AFFECT BOOTLOADER OR MODEM AS THEY ARE NOT INCLUDED.

GENERAL DISCLAIMER : YOU ARE RESPONSIBLE FOR WHAT YOU DO TO YOUR PHONE!

This is a stock, rooted TW 4.3 rom based off of the recent ML1 update. It does not contain a bootloader or modem. KNOX has been NIXED too. ThePagel was able to grab the .tar which made this possible. Go throw a huge thanks his way. Also send some thanks to decimalman for allowing me to use his kernel. As a few others have figured out, the stock kernel doesn't play well with the earlier .TZ firmware causing wifi to be borked. You can check out decimalman's work here. Remember to thank him while your there.

More about the firmware now. DON'T JACK WITH IT!!!!! I know in the past it was common practice to flash the newest firmware along with whatever rom base you were upgrading to but as Invisiblek "discretely" informed us here, that is no longer the case. You will brick your phone if you try! While your reading invisiblek's thread, go ahead and grab the new modem. You'll be glad you did.

Ok, back to the rom. I was doing this blindly as my S3 is on vacation with my son at the moment so I owe a huge thanks to jlyle and prdog1 for testing it out for me. Give them credit for the kernel find that fixed wifi.

Decimalman goes out of his way to support Trickster MOD which is available in the Play Store but states most other tuning apps work well. 


Features:

decimalman's TW4.3 dkp kernel
Pre-Rooted
Deodexed
Zipaligned
Busybox
init.d support

To Install:

Must be on MF1 or earlier bootloader
Place .zip on ext. sdcard
Wipe data, cache and dalvik cache (if you don't wipe, don't bring up any strange rom behavior or quirkiness here)
Install rom
Upon reboot, you will be asked if you want to fix recovery, always answer "NO".
When booting for the first time, it may take up to 5 minutes. DON'T PANIC!

Download:

VRUCML1_Stock_Root_Deodex_12_31_2013
md5: c1f62f09cc9172ded81b224f7fc16496

Mirrors:
I535VRUCML1_Stock_Root_Deodex_12_31_2013.zip - thanks zachf714

VRUCML1_Stock_Root_Deodex_12_31_2013 - thanks jlyle
md5: c1f62f09cc9172ded81b224f7fc16496

I535VRUCML1_Stock_Root_Deodex_12_31_2013.zip - thanks cammykool

Thanks:

ThePagel - for the ML1.tar
decimalman - for letting me borrow his awesome kernel
Dsixda - for the kitchen (that makes it so much easier on us noobs)
scrosler - for his great tutorial on building a rom from a .tar
ChainFire - for SuperSU
Invisiblek - for his general awesomeness and helping us to not make our phones explode
jrkruse - for the root method
jlyle and prdog1 - for trusting me and testing my work


12.30.13 - Initial Build (Oops, derped Wifi)

12.31.13 - New Build - Added back missing libs and fixed Wifi (Sorry!)MODS:

In case you do a little too much tinkering (or maybe you just don't like my mods ) specifically in SystemUI.apk, framework-res.apk and SecSettings.apk, here's a revert.zip
ML1_Revert.zip
ML1_Revert_SecSettings.zip

4-Way_Reboot_Menu_ML1.zip (Reboot / Hot Reboot / Download / Recovery) - me

Tether_Mod - Thanks prdog1

AOSP_Mms_for_ML1.zip - by me (if you don't like my theming you can push your preferred AOSP Mms.apk to /system/app/
(be sure to back up your messages, this will wipe them)

Blue Toggles - Thanks jlyle

Moar_Blue_&_Circle_Batt_ML1.zip - me (no torch toggle in this one)

S3 ML1 4.3 4x4 Launcher with Scroll Speed Hack - Thanks Prdog1

4x5 Launcher ML1.zip - Thanks Prdog1 & Jlyle

4x6 Launcher ML1.zip - Thanks Jlyle & Prdog1
                                          

                       Galaxy S3 Android 4.1.2 vs 4.3

Android 4.3 Jelly Bean Features:
- GALAXY GEAR Support
- TRIM Support (Makes the device much faster)
- ANT+ Support
- Core UI elements updated to the ones on the Galaxy S4 (Galaxy S4′s theme all over)
- New Samsung Keyboard
- GPU drivers have been updated (Higher GPU benchmark scores)
- New Lockscreen: Multiple Widgets, improved ripple effect than Android 4.1.2, ability to change clock size and set a personal message
- New Screen modes (From S4): Adapt Display and Professional Photo
- Daydream
- Driving mode
- Actionable notifications
- Move-to-SD-card feature
- New Camera mode : Sound and Shot
- New Additions in Notification Centre
- Completely revamped Settings UI (Tabbed interface -- Exactly like the Galaxy S4)
- Implementation of Voice controls (Let's you control various parts of the phone using voice commands -- Galaxy S4 feature)
- New Samsung Apps: Calculator, Clock, Contacts, Gallery, Music
- Full screen Samsung apps
- New S-Voice (from Galaxy S4)
XDA SOURCE
Credit goes to Old&Slow

Android 4.4 is here for the Galaxy S3 in the Form of CynogenMod.
Here is this video i will show you guys how to update to Android 4.4
It's a Stable Version so go for it and don't forget to hit that like button.

CWM (Latest):
http://forum.xda-developers.com/attac...

ROM:
http://d-h.st/dEX
Gapps (4.4):
http://temasek.hopto.org/Samsung%20Ga...

KitKat look any different from the last version 

 

Android cleaner and simpler than ever before. Google has dressed up the Android interface, with visual tweaks like finer support for full-screen mode and more flawlessness effects.

On the leaked pictures of Android 4.4 KitKat, they were pushing the transparent navigation and status bars and white icons, so we should not be surprised to see them in the final version on the Nexus 5.

The horizontal line separating the home screen the dock is gone in its place, you now have a multi-dot display showing which panel you're currently viewing, similar to what many OEMs had already employed in their own Android-based UIs.

One thing that Google really concentrated on in Android 4.4 was performance. One thing they really pushed was the ability for Android 4.4 to work efficiently on low-end devices; ones with as little as 512MB of RAM! 

(source : Techcrunch.com)

There's a new launcher, It's not nearly as glaring a change as iOS 7 was, and commonly speaking KitKat still airs a lot similar Jelly Bean, but the design directions feel very similar.

Google just released the latest version of the Hangouts App that integrates SMS and MMS.

Voice activation really an internal part

Not Fully. KitKat does introduce a new voice command -- "Okay, Google" -- that swiftly takes you to Android Voice Search. But the command doesn't wake the phone on demand, as it does with the Moto X; it works on passive way.

Dialer get smarter.

Google's essentially built the Yellow Pages into its dialer app. When someone calls you and they are not one of your contacts, the phone will automatically check for the number against local listings using Google Maps and will let you know if it is a local business.

Photography  smarter.

A new feature called HDR+ will take a flurry of photos, then use high-dynamic range technology to combine them, allowing for better images in tricky lighting situations and less motion blur.

Wireless printing

Android 4.4 KitKat will bring wireless printing support to Android users. As we have already seen in leaked images, users will have the opportunity to print documents and pictures directly from their handsets, and customize the print jobs from the phone and/or tablet.

HP ePRINT

Wi-Fi TDLS Support

TDLS, for those that don't know, stands for Tunneled DIrect Link Setup.

One more KitKat feature , it's Wi-Fi TDLS., Wi-Fi TDLS, as Google describes it, is 

"a seamless way to stream media and other data faster between devices already on the same Wi-Fi network."

According to the Wi-Fi Alliance:

“Two TDLS devices automatically use their highest common performance and security features, regardless of the feature level supported by the network. TVs, smartphones, cameras, printers, PCs, projectors, and gaming devices, for example, can connect directly to each other to transfer content and share applications quickly and easily.”

Google Wallet

Kit Kat brings support for Host Card Emulation (HCE), which means any Android NFC device could be used for mobile payments without needing access to a secure element. With HCE any app can emulate an ISO/IEC 7816 smart card that use the contactless ISO/IEC 14443-4 (ISO-DEP) protocol for transmission.

Emoji everywhere

 

 

Until now, using emoji in parts of Android besides Hangouts could be a little tricky. Thankfully, Google has spread "Emoji everywhere" with Android 4.4 KitKat, integrating the set of awesome emoji with Google Keyboard for easier access. Users can now spice up their text messages, emails, and other announcements with fun Japanese-inspired characters and mood icons.

Step Detector and Step Counter

Google really worked on this new operating system to make it lean and fast. They also included many new features that will allow app developers use these new features as easy as possible.

The Step Detector examines accelerometer input to identify if the user takes a step and triggers a follow up event for each subsequent step the user takes.

The Step Counter will track the total numeral of steps taken until you restart the device; then it will start over keeping count.

(Source :appeared first on AndroidHeadlines.com)

 

Audio Tunneling to Save More Battery

In KitKat, Google has introduced audio tunneling into DSP. Instead of using the application processor to decode audio or respond to audio output requests, this responsibility is offloaded to the onboard DSP. The DSP is now much more efficient at such tasks than the CPU, and now Google is estimating that the amount of power used playing back audio on your phone could decrease by about 50%.

(Source:appeared first on AndroidHeadlines.com)

when will KitKit actually come to my phone?

Google has said on their announcement post that “KitKat will soon be available on the Nexus 4, 7, 10, the Samsung Galaxy S4 and HTC One Google Play Editions.”

In an interview with Engadget, HTC's Jason Mackenzie revealed that they aren't beating around the bush with Android 4.4 KitKat. The goal is to first push the update to the HTC One Google Play Edition within the next 15 days. After that, the unlocked and developer editions of the HTC One should see an update within 30 days. As for U.S. Carrier variants of the One? While delays can obviously happen, the goal is to push out the update to all carriers within 90 days or less.(Source :appeared first on androidauthority.com)

Sorry about the volume level, also I was really tired but wanted to get this to you guys as soon as possible!

Download: http://goo.gl/EeaP46

Xposed installer: http://goo.gl/kI9lv7

How to setup and install the Android SDk (ADB and Fastboot):http://youtu.be/gdeIol1m6A0

Phone not recognized by the computer? Install the drivers for your device: 
HTC: http://goo.gl/xx2wS
Samsung: http://goo.gl/hmN5w
Sony: http://goo.gl/UCJ1t
Motorola: Ha!

Music for intro: Here We Are by n1tex
Link: http://goo.gl/w4yQX

Need help? Contact me

Twitter: http://goo.gl/T6dpt
Facebook: http://goo.gl/YaFBA
Google+: http://goo.gl/xwYry

My second channel: http://goo.gl/F3LZ5
My gaming channel: http://goo.gl/oa4PU

Feeling generous? Donate
http://goo.gl/SyXKz