[Sprint Samsung Galaxy S III] mercado79:
Disclaimer:

(1) This is not my work. I've simply collected files from various people/threads in the hopes of saving everyone time and effort. See credits below.

(2) Flashing radios is among the most dangerous thing we can do to our devices. If you flash any of these on your AT&T, T-Mobile, etc., you're very likely to brick your phone. While I have tested all of these files, you flash at your own risk. Again, this is Sprint only.

Instructions

Right now, there are different ways to switch radios based on the version you're looking for. Only 1 file is needed for the MD4, MC3, MB1, LJ7, LI3, LG8, and LG2 radios. Two files for the LEN and LF9 radios.

There is no magic or perfect modem. Try them out. See how they work for your phone in your coverage area. YMMV.

If you run into any problems, you can always try flashing a different file; however, you should know that Freeza's script creates a backup whenever you flash a new modem. You can find this file (modem.backup) at the root of your internal SD card (aka /sdcard), not on your micro SD card. Use http://www.mediafire.com/file/qvt2e9gldl7f8b5/SprintGalaxyS3RestoreModem.zip to revert and make sure that it too resides on your internal SD card. md5: 52BFCACBC872A62FB4FA3AE72CB212C9

From newest to oldest:

Looking for the MD4 Radio?

Flash this file from recovery:

http://www.mediafire.com/download/3ql3txb4gfama1m/SprintGalaxyS3MD4Modem.zip

md5: d0d300d0bc73a1850a0a16b840306cfe

*****

Looking for the MC3 Radio?

Flash this file from recovery:

http://www.mediafire.com/download/yxc6kd2gt6553ju/SprintGalaxyS3MC3Modem.zip

md5: 4dc8164284226562d846014a1acf65dc

*****

Looking for the MB1 Radio?

Flash this file from recovery:

http://www.mediafire.com/download/8ab17885p527zsj/SprintGalaxyS3MB1Modem.zip

md5: 870951cf342ec75400b86e5bc49b5d27

*****

Looking for the LJ7 Radio?

Flash this file from recovery:

http://www.mediafire.com/file/fm7afhodhta9l8z/SprintGalaxyS3LJ7Modem.zip

md5: 2b2d330ff79934b3bd01e8b4663c3625

*****

Looking for the LI3 Radio?

Flash this file from recovery:

http://www.mediafire.com/file/8919cjo8su8jprc/SprintGalaxyS3LI3Modem.zip

md5: f8942c3b12a6fb856ac19acdaf8787e4

*****

Looking for the LG8 Radio?

Flash this file from recovery:

http://www.mediafire.com/file/u4793wlu5r97t3g/SprintGalaxyS3LG8Modem.zip

md5: 840e11a63d5b0e84d463b268f3218752

*****

Looking for the LG2 Radio?

Flash this file from recovery:

http://www.mediafire.com/file/ve8ed01rpfr328w/SprintGalaxyS3LG2Modem.zip

md5: EBFE67CCA6D2D415318CE490AA3ABA46

*****

Looking for the LF9 Radio?

Step 1:

Put this file at the root of the internal SD card (aka /sdcard), not on your micro SD card:

http://www.mediafire.com/file/s3tubbay374io4i/modem.backup

md5: E3407B99E022406C33DB82662B512A81

Step 2:

Flash this file from recovery:

Restore Modem Flashable Zip

http://www.mediafire.com/file/qvt2e9gldl7f8b5/SprintGalaxyS3RestoreModem.zip

md5: 52BFCACBC872A62FB4FA3AE72CB212C9

***Note: Though it doesn't have to be at the root of the card, this zip should be placed somewhere on your internal SD card (aka /sdcard) as well otherwise it may not see the modem.backup file.***

If everything works, you'll see a progress bar during the flashing process. Don't see a progress bar? Then the radio hasn't been flashed.

*****

Looking for the LEN Radio?

Step 1:

Put this file at the root of the internal SD card (aka /sdcard), not on your micro SD card:

http://www.mediafire.com/file/m6j3bfom2pmhqda/modem.backup

md5: 36A63A357D34DBD7A3B2B80F9AE4686E

Step 2:

Flash the "Restore Modem" flashable zip file from recovery (see above).

***Note: Though it doesn't have to be at the root of the card, this zip should be placed somewhere on your internal SD card (aka /sdcard) as well otherwise it may not see the modem.backup file.***

If everything works, you'll see a progress bar during the flashing process. Don't see a progress bar? Then the radio hasn't been flashed.

Alternate Method

Clark44...an amazing dev with a great TW ROM (check out FreeGS3 here) and all around nice guy has worked with Team Sonic to create the Modem Flasher for All tool. While I haven't tried it yet, I recommend you check it out. Especially if you have any problems with the zips posted in this thread.

Clarks' modem flasher thread can be found here (though it seems to not include any radios since LJ7):

http://xdaforums.com/showthread.php?t=1816530

--------------

Credit:

First and foremost, Freeza. He's done all the heavy lifting and deserves all the credit. The LG2, LG8, and LI3 flashable modems were originally posted here: http://xdaforums.com/showthread.php?t=1743923. You can also find all the modems as well as All-In-One baseband/firmware update files here: http://goo.im/devs/freeza/. I created the LJ7 modem flashable zip by pulling the modem out of the LJ7 All-In-One file.

klarthur posted the original "restore modem" zip here:

http://xdaforums.com/showthread.php?p=28816933#post28816933

Naddict posted his LEN backup here:

http://xdaforums.com/showpost.php?p=28872788&postcount=14

I used by own backup of the LF9 modem to share here, though I think the backup was made by Freeza's LG2 upgrade zip.

Thank you Freeza for giving me the "ok" to repost your files here.

XDA:DevDB Information

[Modem/Baseband] Sprint GS3 Flashable Radios LEN|LF9|LG2|LG8|LI3|LJ7|MB1|MC3|MD4, Tool/Utility for the Sprint Samsung Galaxy S III

Contributors

mercado79

Version Information

Status: Testing

Created 2014-11-05

Last Updated 2014-11-05