If your phone not connect to your Phone Network (Airtel /GP/Robi/Banglalink/Taletalk) normally then u need to FLASH your Phone Modem or RADIO

Warning: All modems (radio / baseband) are for the International I9300 &I9300T variant only!!




If your phone not connect to your Phone Network (Airtel /GP/Robi/Banglalink/Taletalk) normally then u need to FLASH your Phone Modem or RADIO

1st Download the Phone Modem (GT-i9300) >>> http://goo.gl/LhHsOu

Then Flash in Recovery Mode








I9300 & I9300T running JB Samsung ROMs Only. Official CM uses open source RILs so these Samsung RILs won't be compatible

Samsung EFS changes related question with latest Modems incompatibility to older Modems here: http://forum.xda-developers.com/show....php?t=2393289
Original UpInTheAir's Modem thread with a huge archive of Modems: here So if you need RILs for any specific Modem just ask in this thread 
Do not flash these zips on leaked Android 4.2 Samsung ROMs unless you delete the System folder inside the zip using a tool such as WinRAR. Otherwise you will end up with no signal and you may have to re flash your ROM to get the 4.2 RILs back.
XXEMG4 and later Modems will modify your efs partition(where your phone IMEI info is) making older modems incompatible with your phone. In order to use older modems again you must restore an old backup of your efs partition. So make sure to backup your efs partition before you do anything.

RIL+modem package will install the Modem and following 4 system\lib files from the matching ROM :
libril.so
libsec-ril.so
libsecril-client.so (probably not important)
libreference-ril.so

Quote:

I9300 JB RILs+Modem

BVEMF1
Android:4.1.2
Date: 01/06/2013
Carrier-Country-Region: Orange - Austria - Europe
Download: Mediafire
RIL MD5: 0679D7898DDA1488DD672753616E3E33

XXEMB6
Android:4.1.2
Date: 28/03/2013
Carrier-Country-Region: Unbranded - Nordic - Northern Europe
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

BUEMC2
Android:4.1.2
Date: 27/03/2013
Carrier-Country-Region: Vodafone - Portugal, UK - Europe
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

JKEMC1
Android:4.1.2
Date: 22/03/2013
Carrier-Country-Region: Unbranded - Israel - Middle East
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

XXEMC2
Android:4.1.2
Date: 11/03/2013
Carrier-Country-Region: Unbranded - UK - Europe
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

BUEMC1
Android:4.1.2
Date: 06/03/2013
Carrier-Country-Region: Vodafone - Spain - Europe
Download: Mediafire
RIL MD5: 017DA4AC80A207325CBEA72370354064

XXEMB5
Android:4.1.2
Date: 25/02/2013
Carrier-Country-Region: Unbranded - UK - Europe
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

DXEMB1
Android:4.1.2
Date: 20/02/2013
Carrier-Country-Region: Unbranded - Singapore, Vietnam - South East Asia
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

DDEMB1
Android:4.1.2
Date: 20/02/2013
Carrier-Country-Region: Unbranded - India, Sri Lanka, Nepal - South Asia
Download: Mediafire
RIL MD5: 788BBF58812206981E4465966BA45BBD

POEMB1
Android:4.1.2
Date: 07/02/2013
Carrier-Country-Region: Bouygues - France - Europe
Download: Mediafire
RIL MD5: 1FA10DC495F14AF1C25176BAACC5578B

XXEMB1
Android:4.1.2
Date: 01/02/2013
Carrier-Country-Region: Unbranded - UK - Europe
Download: Mediafire
RIL MD5: C9DB58182B69674A86561B9F4459F13D

BUEMA1
Android:4.1.2
Date: 01/02/2013
Carrier-Country-Region: Vodafone - Germany - Europe
Download: Mediafire
RIL MD5: C0D88501A5051A44663D02B6D899B689

XXMA1
Android:4.1.2
Date: 22/01/2013
Carrier-Country-Region: O2 - Czech Republic - Europe
Download: Mediafire
RIL MD5: C9DB58182B69674A86561B9F4459F13D

VIEMA1
Android:4.1.2
Date: 15/01/2013
Carrier-Country-Region: VIVO - Brazil - South America
Download: Mediafire
RIL MD5: A23827986EE7036B43EC1C9AB2913631

XXELKB
Android:4.1.2
Date: 15/01/2013
Carrier-Country-Region: Unbranded - France - Europe
Download: Mediafire
RIL MD5: C9DB58182B69674A86561B9F4459F13D

UBELL1
Android:4.1.2
Date: 31/12/2012
Carrier-Country-Region: Unbranded - Dominican Republic, Brazil - South America
Download: Mediafire
RIL MD5: A23827986EE7036B43EC1C9AB2913631

DXELK1
Android:4.1.2
Date: 28/12/2012
Carrier-Country-Region: Unbranded - Vietnam, Singapore - Asia
Download: Mediafire
RIL MD5: C9DB58182B69674A86561B9F4459F13D

XXELJ2
Android:4.1.2
Date: 28/12/2012
Carrier-Country-Region: Unbranded - Hong Kong, Taiwan - Asia
Download: Mediafire
RIL MD5: 30635CA3385E4B6A8722DC6AE93F5ED4

XXELLA
Android:4.1.2
Date: 24/12/2012
Carrier-Country-Region: Unbranded - United Kingdom - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

BOLK3
Android:4.1.2
Date: 22/12/2012
Carrier-Country-Region: T Mobile - Germany - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

NELK2
Android:4.1.2
Date: 15/12/2012
Carrier-Country-Region: Three - United Kingdom, Italy - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

BUELL1
Android:4.1.2
Date: 26/12/2012
Carrier-Country-Region: Vodafone - Italy, Romania, Germany - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

CEELL1
Android:4.1.2
Date: 12/12/2012
Carrier-Country-Region: PHN - Netherlands - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

BUELK1
Android:4.1.2
Date: 10/12/2012
Carrier-Country-Region: Vodafone - Germany - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

XXELL4
Android:4.1.2
Date: 10/12/2012
Carrier-Country-Region: Unbranded - United Kingdom - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

JKELK4
Android:4.1.2
Date: 09/11/2012
Carrier-Country-Region: Unbranded, ILO - Israel - Middle East
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

BWELK1
Android:4.1.2
Date: 13/12/2012
Carrier-Country-Region: O2 - UK - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

BVELK1
Android:4.1.2
Date: 05/12/2012
Carrier-Country-Region: Orange - Romania, Spain - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

XXELKC
Android:4.1.2
Date: 30/11/2012
Carrier-Country-Region: Unbranded - Poland - Europe
Download: Mediafire
RIL MD5: DE218981253D753ECCA09BA5E9A5B4A3

Quote:

I9300T JB RILs+Modem T modems are optimized for 850 band

TDUEMB1
Android:4.1.2
Date: 14/02/2013
Carrier-Country-Region: Vodafone,Telstra - Australia,Thailand - Asia 
Download: Mediafire
RIL MD5: E867D1AF7F4EA7A7EC1ED8BB4088EC6F

TDUELL2
Android:4.1.2
Date: 26/12/2012
Carrier-Country-Region: Vodafone,Telstra - Australia,Thailand - Asia 
Download: Mediafire
RIL MD5: 9C923D74A0F29C20DC3AFA0508E6CE80

TDUDLJ2
Android:4.1.1
Date: 26/11/2012
Carrier-Country-Region: Vodafone,Telstra - Australia,Thailand - Asia 
Download: Mediafire
RIL MD5: 5E2C97E6C09CEA3C72DB5772D04F7D57

How to root the Samsung Galaxy S III I9300, I9305

ODIN >>> 3.9 >>> http://goo.gl/od5Y26
                                               or
ODIN >>> 3.4 >>> http://goo.gl/QQBVRu

CF-Auto RooT >>> http://goo.gl/XJll3Z


Mirror Download link >>>>  http://goo.gl/9rZKLH



Details Description about Root......

Preparations Before Rooting:

In the following tutorial, we’ll install a the ClockworkMod recovery that will replace the stock recovery on your Galaxy S4, and then we’ll install the SuperUser app via it. But before we do that, let’s take care of the following things first.

• Download Odin3 1.85 to install the CF Auto Root: Odin 3.9.zip or Odin 3.4.zip
• OR,If you want to install CWM Touch Recovery with enhanced options modded by PhilZ, download the following file: Philz_touch_5.06.0-I9500.Tar.Md5
• Download the CF-Auto-Root by Chainfire (extract the zip): CF-Auto-Root-Ja3g-Ja3gxx-Gti9300.Zip
• Download and install Samsung USB Drivers on your PC. If you have already installed Samsung Kies, you can skip installing the drivers but make sure that Kies is closed while you use Odin.
• Make sure your S4 has at least 60% battery left on it. If not, plug the charger now.
• Turn on USB Debugging from your phone’s Settings> Developer options. 

Rooting Galaxy S3 GT-I9300:

Now here are the easy steps to install the root package to your Galaxy S3-

1. Turn off your device and boot it into Download/Odin mode. To do this, press and hold the Volume Down + Home + Power keys simultaneously for about 3-4 seconds till the screen turns up and you see a warning screen. Press Volume Up to continue to the Download mode.
2. Launch Odin3 1.85 and connect device to PC.
3. When Odin detects the device,  the ID:COM port will turn Yellow and you’ll see “Added!!” at the message box on Odin.
4. Make sure that only“Auto Reboot” option is ticked on Odin (see below).
5. Now click on PDA button and  select “CF-Auto-Root-ja3g-ja3gxx-gti9500.tar.md5″.
6. Finally click the Start button on Odin and let the installation finish followed by PASS! message.
7. Now disconnect the USB cable and pull out the back cover of your Galaxy S3. Remove the battery and put it back after 30-40 seconds.

You device will now reboot and it might take a couple of minutes before it boots up normally. Now you can see a new app called SuperUser in your phone’s app drawer. To verify if the root access is working fine, you can install and run the Root Checker app from the Play Store.

Install CWM Recovery on Galaxy S3GT-I9300:

Your Galaxy S3 already has root access now. If you also want a custom recovery to be installed on your phone,  follow the the same steps as you did above while rooting the device.

1. Boot Galaxy S4 into Download Mode (Volume Down+Home+Power).
2. Launch Odin3 v3.04 and connect the device to PC using USB cable.
3. Or, in case you have downloaded PhilZ CWM Touch recovery, select: “philz_touch_5.06.0-i9500.tar.md5″
4. Make sure that only “Auto Reboot” and “F Reset Time” are selected on Odin.
5. Finally, hit Start button and wait till CWM is installed followed by a PASS! message. Your device will now reboot automatically.
6. To enter the ClockworkMod recovery mode anytime, turn off your phone and hold down Volume Up+Home+Power buttons for 3-5 seconds till the screen turns up, your see “Samsung Galaxy S III” logo. Now release the Power key and wait till you see a screen like shown below:
7. PhilZ Touch CWM recovery will look like this: 
8. If at any point of time you see a screen with following prompt in CWM, select “Yes- disable recovery flash” or you device will automatically replace CWM with Android System Recovery.

   ROM may flash stock recovery on boot. Fix?
   THIS CAN NOT BE UNDONE.

   - NO
   - YES - Disable recovery flash

MIUI v5 For Galaxy S III - GT-I9300

Phone & SMS
Better Call & SMS experience

Find contacts using the dial pad, full screen avatar displays during incoming calls, information such as location of caller and spam calls are clearly shown, efficiently blocks out unnecessary calls and just an overall refined phone experience.

Personalized Themes

Choose from thousands of themes from our online store. 

Gain access to numerous themes carefully designed by renowned theme designers.

Network Assistant Don't worry about exceeding your data plan as MIUI constantly updates data usage from carrier feedback. Network Assistant also gives you absolute control. Don't worry about exceeding your data plan as MIUI constantly updates data usage from carrier feedback. Easily adjust which application uses WLAN or carrier data network and the added data traffic control measures ensures optimal usage of your data plan.

ROM DOWNLOAD >>>> http://goo.gl/NHXpI4