[Galaxy S III General] kamalmawa:
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://xdaforums.com/showthread.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

Install it in CWM as any other cwm flashable zip. Backup of your old RILs will create on your sdcard inside the folder "sdcard\OldRILs".

Note: If the MD5 (MD5 value of libsec-ril.so which getRIL app use) are the same that means Samsung packed those modems with same RILs

Please read all the FAQs in second post below before asking any questions. Any request for RILs ask in this thread and please don't PM me for requests as I'm very slow to reply them;)

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

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

Modem/RIL Info Archive

Hotfile Mirror

Thanks hawkerpaul for his original S2 RIL thread :)