[I337M] Upgrading from 4.4.2 to 5.0/Custom ROM - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hey guys,
Was wondering if some one could point me in the right direction, I would greatly appreciate it!
I have a modified Rogers Samsung Galaxy s4 with the following attributes and I want to upgrade to lollipop 5.0:
1)Ni2 BaseBand
2)Sim Unlocked
3)AWS Enabled (Currently on WIND network)
4)Running Stock 4.4.2 firmware, however has clockwork mod recovery.
5)Rooted with Odin r
I want to do a factory wipe as the phone is getting quite laggy an d then install a clean version of lollipop with one of those new roms on it (Goldeneye). My question are:
1)If I do a factory reset will I have to enable AWS again in order to work on WIND? Is it possible on that updated modem?
2)Can some one point me to the proper thread, I tried looking with no success of anything that aligns with my specific situation .
Thanks for your help

First first you néd to upgrade to stock lollipop via odin late root+recovery (twrp work fine) ●●●●

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AT&T S4 I337 (MDL) newb flashing questions

Months ago I flashed my phone (AT&T S4 I337 running MLD baseband) to stock 4.3 ROM (JWR66V). I have TWRP installed as a custom recovery and the phone is working fine. However, I don't have root access when the OS is running. No sure why.
Anyway, I'm bored and there are a few nagging bugs, so want to give Cyanogenmod a shot. My questions for you are.
1) can I just download the appropriate CM release and flash it?
2) Do I need to reroot? If so, whats the best method for me?
If its really risky, I'm not interested. But if it's a matter of just flashing the rom, I'd like to give it a try. Any advice is appreciated. Thanks.

Flashing stock recovery I9505G for OTA updates

Hey guys,
Can you help out with a newbie question.
Im running android 4.4.2 on a rooted I9505 flashed with GPE edition rom. Im currently running I9505XXUEMKF baseband on a I9505 recognised as I9505G. On meteor network in Ireland.
My problem is Id like to get OTA updates, but these fail as I have TWRP installed. As I understand it this can be overcome by reflashing the stock recovery. Is this correct?
So my question then is how to know which stock recovery to flash? & can I do a backup of the current one I have installed in case something goes wrong?
Looking at this thread in development subform. & several are listed.
http://forum.xda-developers.com/showthread.php?t=2452046&nocache=1
Thanks
Paddy

HELP PLEASE ! want to upgrade from 4.2.2 to Lollipop

Hey Everyone!!
Thank you for looking at this thread.
In a nutshell, I got my i9505 galaxy s4 since June 2013, rooted it straight away when i got it, its got twrp recovery, and im on omega v9 4.2.2. Havent touched it since to date
It does not have knox.
Is there a way I can simply upgrade to something like cm 12.1 with 5.1.1 with everything working, by simply flashing latest cm with gapps using twrp, or will I have to upgrade bootloader, radio, get knox, or even just start over, flash stock samsung lollipop firmware with knox using odin, in order to do so?
I already a while back tried updating twrp to latest, and tried flashing cm with lollipop 5.0 when it first first came out, but only 2g was working, and signal would cut if i lock my phone. Im guessing this is due to bootloader/radio incompatibility, or maybe because it was early builds? Apparently i cant flash lollipop bootloader and radio over old 4.2.2 stuff without consequently installing knox? Is knox that bad? I heard its better to not have knox but if its the only thing stopping from lollipop then so be it.
Any help and advice much appreciated.
Hope to hear soon,
DJ
You can try upgrading just the modem to be able to flash an Android 5.x ROM, but it likely will not work and thus you will have to flash an updated bootloader as well. The good news is that since your S4 is out of warranty, whether you trip the Knox flag or not will not matter.
You should be able to flash the updated bootloader and radio without having to install an entire ROM, though you might want to download the latest ROM for your S4 anyway. There is a thread in I9505 General that has a list of bootloaders and modems that can be downloaded and flashed through Odin. From there, you should have no problem flashing the custom ROM of your choice through recovery.

Updating a L720 from 4.3 to 5.0

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.
Everything on here is MK2. Software, Baseband & Build. If i wished to flash a newer lolipop rom to my L720 would I need to apply any updates first? Can I flash the new rom from the custom recovery? I attempted to upgrade the firmware through Kies but keep running into a device not recognized error that I suspect is because I'm rooted. Anyway thanks in advance for your time!
Have a look here http://forum.xda-developers.com/showthread.php?p=60675409
Sent from my Mobile Communication Device

Install Custom Recovery Samsung Galaxy AT&T S4 SGH-I337 Ver 5.0.1 Non-Rooted. OK2

Install Custom Recovery Samsung Galaxy AT&T S4 SGH-I337 Ver 5.0.1 Non-Rooted. OK2
Hello, I Want to do some modifications to my Samsung Galaxy S4 and Have so many questions that I am not sure were to start? Yes I'm a noob but learning. I have a SGH-I337 phone that is unlocked so I use it for T-mobile. The phone came with KitKat 4.4.2 NB1 firmware but I managed to update it manually to the latest firmware OK2.
What I would like to do is install a custom recovery and install a clean non bloated Rom. Maybe a custom such as CyanogenMod? Questions: Is there any recovery software that will work on my present upgraded phone such as Safestrap, TWARP,PhilZ or CWM and in doing so I am guessing I need to root my phone first? When you root a phone does that unlock the boot loader? I have read articles saying you can only install custom recovery on the older firmware such as kitkat 4.4.2. or unless a update comes out. I also have read articles that I cannot downgrade and am not sure what that means as I have read articles that I can use Odin and reinstall my stock firmware NB1 is that true? Is there a way to downgrade your upgrades?
I see a lot of articles how to install recovery software but they do not always say what firmware version they are installing it to so I wont even try it. I am guessing-it is the older firmware 4.4.2.
I have read I can flash my kernel to an older Kernel such as NB1 then root it install a custom recovery then upgrade the kernel again? Not sure it I can upgrade or downgrade kernels that are for my phone?
I did manage to root my phone awhile back when it had kitkat 4.4.2 NB1 but had problems later on with my touch screen going crazy as if someone was in my phone so I brought it back to stock by using Odin and reinstalling NB1 firmware hoping to fix the problem. After installing stock firmware I decided to upgrade to lollipop 5.0.1 OB2 and that is were I am now. About my touch screen going crazy I have been reading it may be due to cheap USB chargers which I am using but that is another story.
Well any-help or leads would be appreciated.
Maybe if I wait long enough someone will come up with a custom ROM for my latest firmware as well as rooting it?
Steve

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