[Q] Downgrade from nae to mk2 possible? - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Just curious if it possible to downgrade from an nae ROM to say an mk2 ROM. I'm currently running slim kat and want to try some different 4.3 based ROMs. Thanks...

With custom Roms yes. But not with Odin.
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[Q] How to go back to stock Rom

I wanted to know how do i go back to the sprint stock rom after i flashed a 4.4.2 Rom?
Are you saying that you updated to NAE, rooted, and now trying to unroot? If so I don't know of any way to do it since there is no tar for NAE yet.
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daniel4653 said:
Are you saying that you updated to NAE, rooted, and now trying to unroot? If so I don't know of any way to do it since there is no tar for NAE yet.
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Im not sure what NAE is but the rom I have is Octo-Kat from this thread http://forum.xda-developers.com/showthread.php?t=2493128 any info is greatly appreicated.
NAE is the new 4.4.2 TOUCHWIZ update that just came out for the phone. That's what I thought you meant. To go back to stock, if you mean stock unroofed. It would depend on what version of touchwiz you were on before. If you were on 4.2 then Odin a 4.2 tar. If you were on 4.3 with Knox then Odin MK2 kernel.
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daniel4653 said:
NAE is the new 4.4.2 TOUCHWIZ update that just came out for the phone. That's what I thought you meant. To go back to stock, if you mean stock unroofed. It would depend on what version of touchwiz you were on before. If you were on 4.2 then Odin a 4.2 tar. If you were on 4.3 with Knox then Odin MK2 kernel.
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Well before I rooted and flash a custom rom I was on 4.3. However I did flash a 4.4.2 so would that mean im out of out or should I go ahead flash a 4.3 tar
hotbutcoldbacon said:
Well before I rooted and flash a custom rom I was on 4.3. However I did flash a 4.4.2 so would that mean im out of out or should I go ahead flash a 4.3 tar
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If you were on 4.3 touchwiz previously then yes you are okay to odin the MK2 tar.
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daniel4653 said:
If you were on 4.3 touchwiz previously then yes you are okay to odin the MK2 tar.
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Thank you I will try it out.

Is it safe to upgrade S4 to latest and greatest?

As the title suggests, is it safe to upgrade my rooted S4 from CM10, to say CM11 AND upgrade the baseband and bootloader and all other firmware to NAE (or whatever the latest is)?
Edit: In short I am trying to get off of MJA because of the deep sleep issue that drains my battery.
If you want TW interface upgrade to the mk2 4.3 jelly bean or to nae 4.4 kitkat.
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anees02 said:
If you want TW interface upgrade to the mk2 4.3 jelly bean or to nae 4.4 kitkat.
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And if I don't want the TW interface? I plan on upgrading to CM11 or another AOSP ROM, but want to get off of MJA too.
yarmock said:
And if I don't want the TW interface? I plan on upgrading to CM11 or another AOSP ROM, but want to get off of MJA too.
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Than just update your modem and flash cm11?
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daniel4653 said:
Than just update your modem and flash cm11?
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So upgrading the modem will resolve the deep sleep issue? I was before it wouldn't.
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yarmock said:
So upgrading the modem will resolve the deep sleep issue? I was before it wouldn't.
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Nope you will need MK2 or NAE bootlaoder.
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daniel4653 said:
Nope you will need MK2 or NAE bootloader.
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Excuse the noob question, but will i Need to install a TW ROM that has that baked in? Or is there a place to get the bootloader? I see a Spring S4 firmware thread, but no bootloader for MK2 or NAE.
Thanks in advance.
You will have to odin the NAE tar file, then reroot your phone, install custom recovery, and then install cm11 or whatever rom you want. This will bring your phone up to the latest firmware and will hopefully solve your deep sleep issue.
Contact this guy and just flash the modem and bootloader via Odin. The download links containing the bootloader too are not on the page but it mentions that he will provide you with them if requested.
http://forum.xda-developers.com/showthread.php?t=2338919
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---------- Post added at 02:19 PM ---------- Previous post was at 02:17 PM ----------
And yes, then you can just go ahead and flash CM11. It's what I'm running on mine. Works very well, no complaints.
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Kitkat over jelly bean

Hi guys
I have s4 running 4.3 rooted and I want to update it to kitkat can I flash castm rom with flash stock rom 4.4.2 ......?
Thanks
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Yes you can flash any custom rom on KitKay but of course you will need a custom recovery

Knox question

Just to clarify for myself...
I am currently running stock rooted 4.4.2 NAE rom and am wanting to move to a custom one.
To keep from bricking my phone I must install another NAE 4.4.2 rom correct?
Cuz you can't downgrade with Knox right?
What about this JFLTE I'm seeing?
Does it have to be 4.4.2 or have to be NAE or both?
I'm sure these questions are out there somewhere. But I don't see it (please don't flame me for asking)
Thanks!
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Reverend Gonzo said:
Just to clarify for myself...
I am currently running stock rooted 4.4.2 NAE rom and am wanting to move to a custom one.
To keep from bricking my phone I must install another NAE 4.4.2 rom correct?
Cuz you can't downgrade with Knox right?
What about this JFLTE I'm seeing?
Does it have to be 4.4.2 or have to be NAE or both?
I'm sure these questions are out there somewhere. But I don't see it (please don't flame me for asking)
Thanks!
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With CUSTOM Roms you can downgrade. Its only with official Samsung tars that you cannot. And JFLTE is the codename for the Samsung Galaxy s4. And usually only used with AOSP roms.
Reverend Gonzo said:
Just to clarify for myself...
I am currently running stock rooted 4.4.2 NAE rom and am wanting to move to a custom one.
To keep from bricking my phone I must install another NAE 4.4.2 rom correct?
Cuz you can't downgrade with Knox right?
What about this JFLTE I'm seeing?
Does it have to be 4.4.2 or have to be NAE or both?
I'm sure these questions are out there somewhere. But I don't see it (please don't flame me for asking)
Thanks!
Sent from my SPH-L720 using XDA Free mobile app
Click to expand...
Click to collapse
With CUSTOM Roms you can downgrade. Its only with official Samsung tars that you cannot. And JFLTE is the codename for the Samsung Galaxy s4. And usually only used with AOSP roms.

[Q&A] Flashing recoveries and roms

Just got a Verizon S5. Downgraded it from lollipop to the nk2 version of kitkat 4.4.4, rooted, busyboxed & safestrapped. I was wondering if it is now possible for me to flash twrp or clockwork recovery. Also is it safe to flash vzw based roms via safestrap on my nk2 kitkat build?
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