How to downgrade Galaxy S3 i9300 from android 4.3 to 4.1.2

After many months Samsung finally released the Galaxy S3's 4.3 update, it was an unfinished update, users reporting home button Lag, animation lags and a lot more! the device went insane! now in this tutorial I am going to tell you, how you can downgrade your samsung galaxy s3.

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Things we need!
1. Samsung Galaxy S3 I9300
2. USB Cable,
3. Firmware
4. Odin
5. A laptop/desktop/mac with Samsung USB drivers installed!
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Lets begin!

First of all go to download mode on your phone ; you can do this by pressing the (POWER+ HOME+ VOLUME DOWN) together! this way you will reach to the download mode.
Now the screen should look like this!



Now press the Volume UP to continue!


It should look like this!
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Now connect your device to the USB Cable and computer, open Odin and put the downloaded file there!
*P.S- This is a Jelly Bean firmware, and it comes with 1 file. 
So beware which files to put where!
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In Odin put these files in this way!

PUT THE TAR.MD5 FILE IN PDA

After you've carefully put the files, you'll get a yellow or blue(in new odin versions) box in the ID:COM box!

and then hit the start button! this way your flashing will continue and after a few minutes it would complete!, the first boot usually takes a lot of time, don't panic at all!

TIP:
Do a clean format of data, this will cause less problems!


NOTE
___ If you face any issues and to be sure use XDA-developers! they can provide you the best tips, my s3 did work but all you to is by yourself, I do not take any responsibility!



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Thanks for reading!

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