[HELP] UPDATE 4.4.4 NK2 to 6.0.1 ? - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

Hello guys, hope you can help me out.
Im have an sm g900v S5 here in Argentina. It is not rooted but it is unlocked somehow (dont know exactly how because I bought it that way). Now, Id like to update to 6.0.1 if possible without losing this condition, I mean, Ill still need to use it in Argentina so I have to make sure it wont be re-locked to Verizon.
Should I first downgrade to ni2 and root, and once rooted update to 6.0.1? In that case which guide should I follow to update from NI2 rooted to 6.0.1?
Any help will be much appreciated!!!
Best regards
Ignacio

I would rooting first then check to see if your phone is bootloader unlocked by going to download mode on your phone by turning off your device then holding the home button and power and volume down button at the same time
once your phone has a screen that says odin mode look for a line that says mode developer if you don't see developer your bootloader is locked to get out of odin mode pull out your battery then put it back in
if it is unlocked go to this guide other wise if it isn't unlocked search XDA for s5 verizon bootloader unlock and follow that guide then proceed to the guide below
If you want offial software without losing root or bootloader unlock I would recommend a mm custom rom such as
http://forum.xda-developers.com/ver...pdate-to-g900voe1-5-0-keeproot-t3149784/page1
IF you want a custom rom cm13 is a popular mm ROM

Related

G900V from 4.4.4 to most current version with root?

Looked thru the other threads, and didnt see anything that pertained directly perhaps someone can point me in the right direction.
Have my stock S5 from verizon, on 4.4.4 NK2 firmware. Looking to update to whatever is the most current stock firmware with root. I'm coming to this from years of rooting Sprint devices, this is my first Verizon and I've been putting it off forever. Been getting the nag screen everyday now for a software update and I figured it was the time to update this and get myself root.
Thanks in advance for any help in where to look. Please forgive me in advance if this is a duplicate, I searched...I really did, but since its all new to me I wanted to ask.
Looks like the process is to flash 4.4.2, root, check if bootloader can be unlocked, and then proceed 2 different ways if it can be dev bootloader unlocked. If it can, unlock bootloader, flash twrp, and then flash whatever rom you want. If you can't unlock the bootloader, folow the guides to upgrade keeping root with safestrap and use roms that are TW for locked bootloaders. Someone correct me if I'm wrong. I just got a 4.4.4 g900v myself in a trade and I'm figuring out how to proceed as well.
Ok, slight difference. You can root & check the bootloader from 4.4.4...
Root here (Using NCG stock kernel...
http://forum.xda-developers.com/ver.../safely-upgrade-root-4-4-4-nha-volte-t2879348
If you're having trouble finding the NI2 kernel like I did it's here...
http://forum.xda-developers.com/showthread.php?t=2784880
Then use the method bootloader unlock from method 3 here...
http://forum.xda-developers.com/ver...t/rd-unlocking-galaxys-s5-bootloader-t3337909
If you can unlock your bootloader (I could), then flash the bootloader of choice from that link above to correspond to the rom you want. I'll be trying out Phoenix with pd4 (installed from above link) from here...
http://forum.xda-developers.com/verizon-galaxy-s5/development/port-phoenix-rom-v12-0-t3400292

[I9500] Downgrade 6.0.1 to 4.4.2

Hello all, quick question
I have an S4 I9500 running GearCM13 (6.0.1) and I want to go back to stock 4.4.2, would following this guide do the trick or is it no longer possible to downgrade?
If this has already been discussed, a link is appreciated as I've searched and found nothing conclusive.
Thanks
It depends on your bootloader. If you never upgraded the bootloader from 4.4.2 you should be able to go back to stock rather easily. You may be able to go back even with an upgraded bootloader, since both the 5.0.1 bootloader and 4.4.2 bootloaders have Knox. You'll just have to try the guide.
Strephon Alkhalikoi said:
It depends on your bootloader. If you never upgraded the bootloader from 4.4.2 you should be able to go back to stock rather easily. You may be able to go back even with an upgraded bootloader, since both the 5.0.1 bootloader and 4.4.2 bootloaders have Knox. You'll just have to try the guide.
Click to expand...
Click to collapse
Thanks, that's the info I needed.
To summarize the whole situation which led me to want to downgrade: I was on GEARCM13 and battery drain was too much to handle so I wanted to go back to a KK 4.4.2 rom (Ozcan) but then I read about Infernus Rom (Based 5.1.1 Ale95 Note Port) and went that way. Strephon's info helped me notice I didnt have to downgrade anything since I have a 5.0.1 bootloader.
Kinda convoluted response, if anyone wants further details, please pm.

Using an S4 as emergency phone, and I need slight guidance for rooting & recovery

Hello
My LG V10 came across the famous bootloop issue, and I shipped it to LG. In the meantime, I am using an old S4 that was saved for emergencies like this one. It is running 4.4.4, I337UCUFNJ4, and I rooted it with Kingoroot.
I understand that it should OTA to 5.1 in pronably a day or 2 if I check for a software update; it sat turned off since 2014, so it did not receive anything.
1. Do I OTA and reroot?
2. Can I manually jump to 5.1?
Ultimately, I would like to install TWRP and the Blissrom or some other ROM, but I don't want to take an OTA that may screw me up for later. I read that there's a loki thing that will prevent future installations of recovery or something like that. I realize that I will be using a short time (2-3 weeks), but I would like to leave it rooted and with a good ROM.
Thank you
The bootloader is locked so that means TWRP cannot be flashed to the phone and the phone will only run custom ROMs based off a stock Samsung ROM.
OTA updates will not work if the phone is rooted.
audit13 said:
The bootloader is locked so that means TWRP cannot be flashed to the phone and the phone will only run custom ROMs based off a stock Samsung ROM.
OTA updates will not work if the phone is rooted.
Click to expand...
Click to collapse
I'm confused or perhaps you are misinformed. I have seen a lot of ROMs for this device including Blissrom and many others. All od them get flashed through twrp or Safeway or aome name like that.
You mean safestrap?
Maybe you are thinking of the non-AT&T models of the s4 that work with custom ROMs such as Lineage and Validus. Only the AT&T version of the s4 has a locked bootloader, starting with Android 4.3 and up.
There has never been an sgh-i337 s4 with a locked bootloader than can run TWRP. Same goes for the AT&T sm-n900a note 3 with a locked bootloader.
audit13 said:
You mean safestrap?
Maybe you are thinking of the non-AT&T models of the s4 that work with custom ROMs such as Lineage and Validus. Only the AT&T version of the s4 has a locked bootloader, starting with Android 4.3 and up.
There has never been an sgh-i337 s4 with a locked bootloader than can run TWRP. Same goes for the AT&T sm-n900a note 3 with a locked bootloader.
Click to expand...
Click to collapse
But there's a forum dedicated to AT&T development full of roms here on xda.
Yes, there is a full section but you need to look at the ROM requirements. Some of these ROMs were developed before AT&T pushed out an OTA update that locked the bootloader. Other ROMs are made for the non-AT&T s4 such as the sgh-i337m and gt-i9505.
You will not see any ROM that is not based off a stock Samsung ROM that can be installed onto an AT&T s4 that has a locked bootloader. Also, you will not see any version of TWRP/CWM/Philz that can be installed onto an AT&T s4 that has a locked bootloader. Same goes for the AT&T sm-n900a.
I understand your skepticism and appreciate your posts as we are all here to learn from each other.
https://forum.xda-developers.com/showthread.php?t=2785166
https://forum.xda-developers.com/galaxy-s4-att/help/ez-unlock-bricked-phone-galaxy-att-s4-t3703235
https://forum.xda-developers.com/galaxy-s4-att/help/help-installed-chainfire3d-phone-doesnt-t3700830
https://forum.xda-developers.com/galaxy-s4-att/help/samsung-galaxy-s4-sgh-i337-ok2-locked-t3458353
Thanks for the clarification. So how do I know if my bootloader is locked? If I took that ota update that messed things up?
The bootloader becomes locked when the phone is updated to Android 4.3 or newer. I think it needs to be on the MDL bootloader to be unlocked. Anything beginning with an "N" or "O" means that the bootloader is locked.
Thanks audit. And I assume that there's no way to go backwards to a pre-4.3 rom and unlock that bootloader.
So. I'm on 4.44 rooted. Do i remove root and take any ota and reroot? I guess that I'll settle for going as high as possible with the stock rom but rooted with the ability to disable some of the bloatware.
How can I proceed?
In those links that you mentioned, it states that we can flash debloated TouchWiz roms that might be better than stock. Is that right? So can I do that?
You will need to install safestrap to flash a custom ROM. The debloated ROMs must be based off a ROM that is designed for the AT&T s4.
I recommend reading through this thread: https://forum.xda-developers.com/showthread.php?t=2616221
Audit... I odined back to nb1, rooted, and used flashify to get to rooted stock oc3.
How can I get to ok3? And should I leave ota services frozen so as to not ruin and loose root?
OTA will not work with a rooted phone.
Maybe this will help: https://forum.xda-developers.com/showpost.php?p=56453108&postcount=2
I don't have an sgh-i337 so I can't tell you how to get back to a completely stock ROM to get OTA updates. I have the sgh-i337m which is the Canadian version of the s4 without a locked bootloader.
I wrote a guide and FAQ revolving around the MDL bootloader here (if anyone cares to read it):
https://forum.xda-developers.com/galaxy-s4-att/general/how-to-one-guide-to-mdl-bootloader-t3584122

System software not authorized by ATT has been found on your phone

Here are my phone specs
Samsung Galaxy S4 AT&T Android Version 4.4.4,
Baseband ver. i337UCUFNJ4,
Build # KTU84p.i337UCUFNJ4
So far, I have successfully rooted my S4 device using this guide
Link: https://forum.xda-developers.com/ga...to-root-i337ucufnj4-4-4-4-11-13-2014-t2939553
So far, this guide worked out well. I wanted to install Lineage OS and TWRP. I downloaded the TWRP app and flashed to recovery. Everytime I reboot my phone, there is a samsung logo and underneath the logo is a unlocked padlock. When I boot the device in recovery mode (Home + Volume up + Power button), I am prompted an error saying "System software not authorized by ATT has been found on your phone". The phone boots perfectly normal if I don't go in recovery mode.
Need help on flashing my phone back to normal to its factory stock to retry this again.
The phone has a locked bootloader. It cannot run twrp and cannot run a custom ROM unless that ROM is based on a custom ROM.
Useful information can be found here: https://forum.xda-developers.com/showthread.php?t=2616221
audit13 said:
The phone has a locked bootloader. It cannot run twrp and cannot run a custom ROM unless that ROM is based on a custom ROM.
Useful information can be found here: https://forum.xda-developers.com/showthread.php?t=2616221
Click to expand...
Click to collapse
If the bootloader is locked, how was I able to root the device?
Rooting affects the ROM, not the bootloader.
There are several phones with a locked bootloader that can be rooted.
Root information: https://www.xda-developers.com/how-to-root/
Bootloader information: https://forum.xda-developers.com/wiki/Bootloader
audit13 said:
Rooting affects the ROM, not the bootloader.
There are several phones with a locked bootloader that can be rooted.
Root information: https://www.xda-developers.com/how-to-root/
Bootloader information: https://forum.xda-developers.com/wiki/Bootloader
Click to expand...
Click to collapse
Can I downgrade the software from Android 4.4.4 to 4.4.2?
I'm not sure if you can downgrade from 4.4.4 to 4.4.2 as I've never had an sgh-i337.
Was in a similar situation as you, so what I did was use safestrap to run Thor Rom, you can't downgrade to fix the bootloader nor install roms apart from those Touchwiz ones. Heads up about the Thor rom one: clear the data from the download manager before trying to download stuff from the play store. If you got any other issues with the rom feel free to ask (My S4 broke a while back though)
safwanz1 said:
Was in a similar situation as you, so what I did was use safestrap to run Thor Rom, you can't downgrade to fix the bootloader nor install roms apart from those Touchwiz ones. Heads up about the Thor rom one: clear the data from the download manager before trying to download stuff from the play store. If you got any other issues with the rom feel free to ask (My S4 broke a while back though)
Click to expand...
Click to collapse
Hi
I want to downgrade my Android 4.4.4 to Android 4.4.2 because there are more ROM options for 4.4.2 touchwiz. Is this possible on the att s4?
https://i.imgur.com/PtBz9Gd.jpg
On step #4, how do you install the ATT Kernel Modules?
s4androiduser said:
Hi
I want to downgrade my Android 4.4.4 to Android 4.4.2 because there are more ROM options for 4.4.2 touchwiz. Is this possible on the att s4?
https://i.imgur.com/PtBz9Gd.jpg
On step #4, how do you install the ATT Kernel Modules?
Click to expand...
Click to collapse
It should be, 4.4.2 is the lowest you can downgrade to. I'm not sure exactly but it might be done through Odin

[Q] Can I use Lineage OS 15.1?

I have a question since I watched the youtube video on how to upgrade my phone samsung s4 at&t to Oreo, but I read that I need a bootloader. Then when I read articles here in xda, mostly says that this phone can't be unlock? so How do I deal with this? Please explain simply because I am new in this.
If the phone is running an MDL bootloader, it may be possible to flash Oreo. If the phone is running a newer bootloader, the phone can only run TWRP and will not run Nougat or Oreo.
hjayc24 said:
I have a question since I watched the youtube video on how to upgrade my phone samsung s4 at&t to Oreo, but I read that I need a bootloader. Then when I read articles here in xda, mostly says that this phone can't be unlock? so How do I deal with this? Please explain simply because I am new in this.
Click to expand...
Click to collapse
You cannot unlock the bootloader. However, if you're on the MDL bootloader then you can use an exploit called loki doki to install a custom recovery and a custom ROM. If you're on a newer bootloader other than MDL, then you are stuck with only booting custom touch wiz based ROMs and must use safe strap if on kit kat or flash fire if on lollipop.
Can you oden back to mdl if you are running NJ4.
does it matter id i upgraded to Kittkatt with a custon rom vs ota update on if the bootloader got locked? does goldeneye kittkatt 4.4.4 lock the bootloader?
cousindan said:
Can you oden back to mdl if you are running NJ4.
does it matter id i upgraded to Kittkatt with a custon rom vs ota update on if the bootloader got locked? does goldeneye kittkatt 4.4.4 lock the bootloader?
Click to expand...
Click to collapse
No you cannot odin back to MDL, if you try you will brick your phone. It doesn't really matter how you update given your bootloader is locked (unless you're on the MDL firmware). Golden eye ROM does not lock the bootloader, no custom ROMS lock the bootloader.

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