[Sprint Samsung Galaxy S III] kingy9000:
After Lots of Research

This is an issue that could be caused by may different things so I'll list some steps and see if that fixes them! Hope it does :D [Also it would be helpful if you let me know what app you were using to Message or if you have flashed a new mod or

CHANGED

something else recently that could be causing the issue]

#1 Just Reboot your phone and wipe caches and see if that fixes the issue. It could be possible that Sprint may be having signal issues that could cause this. Possibly check with others in your area who also have Sprint or message/call Sprint to check with them.

#2 Reboot into recovery, wipe the caches and system (wipe data IF you want) and then reinstall ROM. That can possibly fix the issue since the messaging app is part of the system. But remember to flash Google Apps if you wipe system and any other mods you may have or custom kernels.

#3 If that doesn't work then you could possibly flash a different kernel and see if that helps. Sometimes kernels may kill processes or something, though I am not entirely sure about this. KT747 Kernel I use

#4 You could try updating your phone's baseband and see if that works. Since Sprint/Samsung released a new baseband literally in the past few days for the Samsung Galaxy S3 and that could possibly fix your issue. The MD4 version is the newest release. Though you could get an older release and see if that helps IF you already use the MD4 version. Freeza's Thread to Download MD4 Firmware/Baseband/Modem Mercado79's Thread to Download older Basebands

#5 You could try switching Network Modes in Settings>More...>Mobile Network>Network Mode I am currently using CDMA/EvDo auto but you could try LTE/CDMA/EvDo or whichever you can switch to and see if that helps. I have read on other forums after some googling that LTE would prevent Text Messages from going through sometimes or phone calls even.

#6 You could try these apps and see if they help: Free Network Signal Repair (Play Store Link) or Fast Reboot (Play Store Link) This just resets all the services on your phone and might be quicker than calling or switching to Airplane mode or Restart Connections (Play Store Link) or 3G Connection Fix Free (Play Store Link)

#7 If that doesn't work then maybe you could see if turning off Airplane Mode on then off gets you your text messages instead of a call. I know really annoying but from the Changelog of this ROM in the next version itsmikeramsay is updating RILs (Radio Interface Layer) which is what is responsible for communicating with the phone's cellular radio base-band firmware and that could possibly fix the issue for you.

#8 If that doesn't work then I would recommend wiping everything off your phone, doing an internal data wipe on TWRP Recovery. And then reflashing the ROM and see if that fixes the issue.

#9 If none of the steps above work I would recommend switching to a TouchWiz ROM or any other ROM and see if text messaging works on that. If it does then switch back to this ROM and see if that possibly fixes the issue.

#10 IF text messaging doesn't work on TouchWiz ROMs even after you updated the PRL and everything else you can on TouchWiz based ROMs then I would recommend going into Stock (I hope you don't need to but if you do please PM me and I'll send you a detailed guide on how to do this easily) and then seeing if it works. If it still doesn't then you will have to visit the Sprint Store for help. But I hope the steps above help.

I gave you the best help possible I could, if you want I would recommend getting a Logcat and submit it someone with more knowledge than me and see if they can help you out! :cowboy: But I will keep searching and see if I find a method that works and edit the post accordingly. Please let me know if your issue gets fixed!!! :highfive: And please press that Thanks button there ;)