MMS and Custom ROMing the LG Optimus S

For all who are thinking of rooting and putting a custom ROM on the LG Optimus S. There is something you should know:

After installing a custom ROM, you'll find that the MMS will "break." In other words, you won't be able to send and receive MMS anymore. Thankfully, there is a pretty simple solution to this.

Go into your phone's dialer and type: ##data#

Or: ##3282#

Afterwards, you'll be taken to a special screen. Scroll down to the icon labeled, "MMSC."

Click on "MMSC" and a dialog box will pop up and say "View" and "Edit."

Click on "Edit."

Then, you'll be prompted for some special number to enter in order to proceed. This number is called your MSL number. You'll need to call Ting and give them your phone number and ask them for what your MSL number is. Afterwards, come back and repeat these steps up to this point.

After entering your MSL number, you'll be allowed to modify the URL used for picture messaging. Delete the URL (which is most likely called):

http://mms.sprintpcs.com

And, enter the new URL that is associated with Ting:

http://mms.plspictures.com

After entering that URL, you are finished. You can now return to the home screen.

.....

....

.....Profit!

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Comments

17 comments
  • Sweet tech tip, thanks

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  • Also, the MSL acronym is short for "Master Subsidy Lock." It's what allows you to change around the data profile on your phone. You might ask: Why not simply update the Profile then? I tried doing this and thought it was a simple idea that should work....but it didn't. So, I posted the solution above to help out anyone who might be having the same problem.

    I'm not sure if this solution will work on any other phone, though, as I haven't tried.

    Welp, Happy ROMing!

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  • Exactly what I needed! Thank you! The flashing guides here in the forums don't mention the mms URL. So thanks again :-)

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  • Thanks so much, today is the first time i could receive picture messages since i had the phone six months

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  • I actually had to do this after doing a reset on my phone with the stock Android. Although it only allowed me to send. Ting is still working on getting my ability to receive working.

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  • Dialing ##3282# didn't do anything for me.

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  • Joshua: ## codes only works with the stock rom. It won't work with any other ROM than the stock version.

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  • I've got CM7 on my optimus and MMS isn't working, does the issue posted here affect it or is it something else?

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  • When I made up this guide, I forgot to mention that I was using CleanROM as my custom ROM for when inputting the phone dialer code. It's just a "cleaned up" version of the stock Froyo that comes on the Optimus. When it comes to CM7.....I'm not quite sure how to restore the MMS functionality on it. The reason why MMS is not working on it though is that the creators of the CM7 programmed in Sprint's MMS URL (mms.sprintpcs.com) since originally, the Optimus S was only available on Sprint.

    So, you would need to somehow change that URL to Ting's MMS URL, which is mms.plspictures.com

    I'll see what I can do and ask in the Android forums over at Android Central on how to get into CM7 and change that setting. I hope to report back soon.

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  • To change the setting:

    DIal ##DATA#

    Navigate to MMS, select Edit, Enter your MSL (obtained from Ting support), change the setting.

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  • Thanks, Cathy.  I saw your post on androidcentral and the response I got worked great, very easy.

    FYI: Open the Voice Dialer and say "Open APN", If the dialer got it right, click to open.  Click on Sprint (the only option for me) and scroll down to the MMS URL and change from sprintpcs to plspictures.

    Hit Menu, then Save and you're done.

    http://forums.androidcentral.com/lg-optimus-s-rooting-roms-hacks/190211-how-restore-mms-cm7-sprint-mvno-called-ting.html

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  • Also, I upgraded to CM9 and that's what I did this on, but it should be the same in CM7.

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  • I'm using CM9 too and I haven't really been able to get MMS to work on any of the AOSP ROMs that don't do a profile update.  I have edited the APN and put in the plspictures url but still doesn't work.  If anyone else has worked it out, let me know.  Thanks

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  • Is this the only thing that using a custom ROM breaks? Is there anything else Ting customers have to do that Sprint ones don't, or should I be golden now? :D

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  • @Megan

    Your question cannot be truly answered because each ROM is different. They have different features, offerings, etc. all done by individual developers. Also, ROMs that are actively being developed will fix things that are broken but other features could get broken. A very good reason to backup your ROM before trying others or upgrading to a newer version of the same ROM.

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  • I would also add that you need to make sure you have send pics and video messages enabled under your account dashboard. Yeah, I know, it is already...well, same for me but it still would not work. For some reason I could RECEIVE after using this fix but could not SEND.

    I checked under my dashboard, I disabled that option, saved, logged out, logged back in the ENABLED it, saved, then I tried again. BINGO! Everything was working perfectly.

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  • Cathy, thanks so much for the clear instructions! Worked like a charm on my LG Marquee! I was getting a lot of flak from my iphone friends and was generally bummed out that I couldn't open their photos. As others have mentioned, I had the MSL# in my original email from Ting which also contained the ESN and phone number. My first phone hack, I'm so proud of myself!

    Cheers!

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