Straight to the point.
How to pull OTA links on any Android version. via ADB on PC. [No Root necessary]
This works on any Android version without root.
[NOTE: if you are on Android 4.2.2 and PC can't see file like on NEXUS Devices with 4.2.2 do this: open file explorer on device and look for logcat.txt and compress it to a .zip file. That way PC will see it and you will be able to pass it to PC and open it to search for the link inside logcat.txt.]
What you need:
Instructions and Tips:
1. Setting up ADB Tools on Windows 7/8 environment variable:
A. Extract ADB Tools folder to "C:\"
B. Click "Start", right click on "Computer" and select "Properties" in the right pane select "Advance System Settings" then "System Properties" will open, select the "Advance" tab if its not selected by default and click on "Environment Variables".
Under "System variables" look for "Path" on the list, select it and click on "Edit..." then on "variable value:" (be careful not to delete anything there) look for the end and add the patch where you extracted the "ADB Tools" folder, if you extracted to "C:\" then the path should be: ";C:\ADB-Tools\" without colons of course. click OK then OK and OK again. Now the Environment Variable for the ADB Tools is added to system.
To test it open CMD and type: "adb devices", it should show your device ID if its connected via USB, if not it show the strings "daemon not running. blah blah starting it now on port xxxx" and "daemon started blah blah" and list of devices attached empty. (Congrats you set ADB successfully).
2. Install Samsung Drivers.
3. Enable Developer options and USB debugging on device.
4. Plug device via USB to PC (if windows start installing drivers wait for it to finish) and open CMD and type the following ADB commands to create the logcat.txt file on internal sdcard.
adb logcat -d -f /sdcard/logcat.txt *:V
5. Exit CMD and unplug and plug device again to be able to see logcat.txt on sdcard. Move to PC and search for link inside logcat.txt. Profit.
Tip: to find the link faster open it on notepad press crtl+F and search for http: until you find something like this "http://android.clients.google.com/packages/ota/xxxx.zip"
and all XDA Members.