Need HELP to update from MDC to MDL. - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

I am running FORCEROM v1.1 and would like to update to FORCEROM v2.3. I have been informed that there is a lengthy process to do this and the first step is to update from MDC to MDL. I have not been able to find any directions that are clear on how to do this for someone who has a GS4 that is ROOTED w/ a CUSTOM RECOVERY & CUSTOM ROM. PLEASE HELP!
Thank You!

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1) can I just download the appropriate CM release and flash it?
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[Q] Rooting a Stock NC1 based S4

Hello,
I'm trying to help a friend who has an S4. She just wants it rooted and debloated...not sure if there is an Odin tar for that specifically, but if there is I'd appreciate a link.
This phone was a warranty replacement and came with the 4.4.2 NC1 base.
I've looked over some instructions here and I just wanted to be sure I do this correctly.
Specifically under the "NC1 ROOTED WITH SAFESTRAP" instructions it says I should Odin back to NB1, then apply a zip to get it to Stock NC1...Since this phone is already at Stock NC1 are the first 2 steps even necessary? Unless I'm missing something why could I not just go direct to Step 3 "ROOT AND INSTALL RECOVERY"?
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Regards.
EDIT: Is this what I'm looking for http://forum.xda-developers.com/showthread.php?p=52167774#post52167774 ?? Is NC1 the latest OTA release or should I be looking for a root NI1 method?
EDIT 2: Or is the easiest path here where I have her take the OTA to NI1 and proceed from there? I'm assuming NI1 is the latest firmware, so she would want that all thing being equal? Thanks again
Just root with towelroot. Go to towelroot.com and download the latest apk.

[Q] Galaxy s4 unroot mf3

Hey guys I'm currently still on 4.2.2 with rooted mf3 running a gpe rom via safestrap. I've been trying to unroot, so I can finally upgrade to KitKat. Has anyone successfully unrooted and updated? If so, can you help me out? Thank you.

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I just purchased an unlocked stock I337 S4 from Ebay that I intend to send to the Phillipines for my fiancee. It currently has MK2 firmware. I would like to upgrade it to OC4 before I send it overseas. I tried using ODIN to flash it to OC4, but it fails.
I managed to root it using Saferoot, and that worked except now it has a lock icon and says CUSTOM on the boot screen, but it still boots fine.
Anyway, I have been reading through this forum for about 3 hours now, and have found no sensible way to update this phone. Even if I could just update it to 4.4.4 I would be happy. Do I have to upgrade it step by step through all the firmware updates? Do I really need to have Safestrap installed to do a stock upgrade from a stock ROM?
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You're so close. http://forum.xda-developers.com/showthread.php?t=2616221
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I have a Sprint L720 running a odexed stock MK2 rom from circa 2013. I followed all the steps back then flashed a custom recovery and the rom for the hotspot capability and am still extremely happy with how it turned out but... I want all those fancy new features lol. I don't really need anyone to hold my hand through the whole process but I did reformat a few times since then and have a couple questions before I start paperweightin' this.
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Have a look here http://forum.xda-developers.com/showthread.php?p=60675409
Sent from my Mobile Communication Device

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