Samsung Galaxy S4 SCH-R970 Firmware Downgrade - Galaxy S 4 Q&A, Help & Troubleshooting

I have a problem everyone. I need to downgrade my s4 from lollipop to jellybean and i dont really know much about downgrades. I need a firmware link for the downgrade and i dont know if i should use ODIN.
Sent from my SCH-R970 using Tapatalk

Hello and thank you for using Q&A,
I don't think you can downgrade from Lollipop to JellyBean, because you have the new bootloader. It don't allowes you to flash any Stock ROMs before 4.3.
Kind regards
Trafalgar Square

There is a downgrade guide in the general section. But it only goes back to KitKat. Going further than that might be harder or impossible.

Related

Stock Rom for att galaxy s4?

Hello everyone!
I have a Galaxy with Android 4.3 with Att im trying to unlock it and found a guide to do so but the process don't work because of the new update im looking for a stock rom on a lower andoid im doing this for a friend and I been on iPhone for a while now so I wouldnt know which rom will work with this device, I want to do this right and not brick this galaxy im not new to rooting or flashing roms.
I would appreciate any help!!
Sansung SGH I337
Android: 4.3
Build: UCUEMK2
Hope you guys can direct me in the right rom. thank you
http://forum.xda-developers.com/showthread.php?t=2595457
This will help you with SIM unlock, if that is what you are attempting.
If it is a bootloader unlock for installing custom ROMS, that is currently not possible with the latest MK2 firmware.

Bootloader question

First of all Hi everyone!
I bought an S4 for my girlfriend and have a question regarding this Knox bullsh*t. When I bought it out was running 4.2.2 i9505xxubmga firmware. I rooted and installed aosp rom on it. But she doesn't like aosp apparently..
So i wanted to know if it is possible to flash 4.4.2 Samsung rom without upgrading the bootloader to Knox enabled one?
Sent from my LG-D802 using Tapatalk
Hey,
sorry, this is not possible with stock Samsung rom. When you upgrade to 4.4.2 knox bootloader will be activated. But it is possible to go back to 4.2.2 mga, this firmware uses the old knoxfree bootloader.
Edit: i think you can install a Samsung based custom rom like imperium rom, this is also knox free and compatible to the old bootloader but I'm quite not sure whether this will enable knox. I think it won't...
Send from my Galaxy S4 using Tapatalk
You can flash any custom rom you want. 4.4.2, 4.2.2, 4.3 etc. It doesn't matter.
You need the correct modem though if you have the old bootloader and anything above 4.3+ rom. You have to do some searching on the correct modem I can't remember which one it was.

Questing about downgrading Kitkat 4.4.2 to JellyBean 4.3

Hi everyone,
I have a Galaxy S4 that is a Canadian version (SGH-i337m).
It is currently running Android Kitkat 4.4.2 (Latest Update) - Stock Android.
As I do not like it, has so many buys and seems a battery killer, I was wondering am I able to downgrade to JellyBean 4.3?
Things you need to know about my device;
It is currently KNOX void 0x1
I have downloaded an official Android JellyBean 4.3 that is the stock to this phone
Is it possible to downgrade at this point? I do not want to install a cusom rom, I want to install the official JellyBean 4.3 that I have
If it is possible, can someone please tell me how?
Thank you
No its not possible, you'll brick ur phone
AlQassam said:
Hi everyone,
I have a Galaxy S4 that is a Canadian version (SGH-i337m).
It is currently running Android Kitkat 4.4.2 (Latest Update) - Stock Android.
As I do not like it, has so many buys and seems a battery killer, I was wondering am I able to downgrade to JellyBean 4.3?
Things you need to know about my device;
It is currently KNOX void 0x1
I have downloaded an official Android JellyBean 4.3 that is the stock to this phone
Is it possible to downgrade at this point? I do not want to install a cusom rom, I want to install the official JellyBean 4.3 that I have
If it is possible, can someone please tell me how?
Thank you
Click to expand...
Click to collapse
Not possible at all...and please dont even try..
The BL wont allow you to...
Knox is one BIG HEADACHE...
Press Thanks if I helped
Sent from my Samsung Galaxy S4 via XDA app.

[Q] 4.4.2 -> 4.4.5 -> Lollipop? (No OTA) [G900A]

Hello,
I just got a Galaxy S5 ATNT (SM-G900A) version with firmware 4.4.2 and build number KOT49H.G900AUCU2AND3
I want to upgrade it to Lollipop, but from what I had seen, I need to upgrade it to 4.4.4 first, How can I achieve that?
I'm not on the ATNT Network(in result, OTA is not working), As i'm living abroad. My phone is factory unlocked.
I had also found an OTA .zip but it's a NG3 one, so I'm not sure if it's compatible with my device.
Thanks guys! (I'm hoping I could do this via the stock recovery way)
*I mean 4.4.4 at the title
I believe theres some ota zips but im not certain theres a way available thats been posted to do this, most of them use odin to get to stock and then using ota to update, or updating to get root, i havent seen one about just manually updating to 5.0, go give the att s5 general section a peek. Otherwise i'd ask the mods to move this over to the att q&a section, im sure one of the devs in the att s5 section would be happy to help.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Oh, i was incorrect, yes there is a lollipop OTA dump, check the att s5 general section, should be able to sideload.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Hey! Thank you for the reply,
I tried one of the lollipop ota .zips
Named
ATTS5Lollipop.zip
It doesn't install though, when I restart the device it's still on KitKat
Plus the manual ota .zips are for NG3s only,
Are those compatible with my device? (ND3)
NVM,
Downgraded to NCE,
Then upgraded to NG3
Then upgraded to OA1
Then to Lollipop.

[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.

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