[Q]Downgrade from 5.0 - AT&T Samsung Galaxy S 5

so, hello im from argentina, i have an us s5 g900a, i updated to lollipop, and i have a cool idea, flash directly 4.4.2 again, so i killed mi phone, now i dont know what to do, i tried using oc4 ng3 and nce kernel, the downgrade to nce file, i cant wake him up. any ideas?
SOLVED: flash with odin g900a stock partitions! but still in lollipop, and samsung account problem!

So you was unrooted upgraded then downgraded?
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Related

[Q] How to unroot/restore stock so I can upgrade to 4.4

Hey all. I had my phone rooted for a long time and I have safe strap. Haven't been here in a while and would like to upgrade to 4.4. Now my stock slot is on android 4.0, baseband N900AUCUBNB4. When I try to update it says my software is up to date or says downloading then hangs. How do I return to full stock to update? Thanks.
http://forum.xda-developers.com/showthread.php?t=2838117
That thread says there is no need to remove root. If I want to use the ota updates do I have to remove root or will the otas still work? Thanks
Using the odin file/files will install the latest stock nc2 Rom and remove root at the same time. If you then want root use towelroot.
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app

at&t note 3 rooted with towelroot want to go back to 4.4.2 completely stock

i want to update to the new update, it errors out at 27%, i think its because i rooted with towelroot, i unrooted it with su. When it reboots it still shows the open padlock and it says custom under the lock. Im familiar with odin and flashing stock roms, but the thing im confused on is can i flash a stock bootloader and 4.4.2. And if i can where can i find the image? I found a site called sammobile or somthing like that. I was directed there from samsungs website. Thanks for the help
http://forum.xda-developers.com/showthread.php?t=2703006
I use the 4 file ones. Works great
tonyo50138 said:
i want to update to the new update, it errors out at 27%, i think its because i rooted with towelroot, i unrooted it with su. When it reboots it still shows the open padlock and it says custom under the lock. Im familiar with odin and flashing stock roms, but the thing im confused on is can i flash a stock bootloader and 4.4.2. And if i can where can i find the image? I found a site called sammobile or somthing like that. I was directed there from samsungs website. Thanks for the help
Click to expand...
Click to collapse
Are you sure you want to take that dive? There is no turning back once you take the true OTA. No more root and no more custom ROMS...for a long while
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I recently Ota to android 4.4.4 and I not only lost root ,but I can't even write to exsd card anymore, because the kit kat update.Towelroot doesn't work anymore . I'm pretty much stuck on stock til I upgrad my phone.
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[Q] Unlocked AT&T device. Will it get the Lollipop Update?

Hello. I have a Galaxy S5 from AT&T, but it's unlocked and I'm using it with another carrier (I'm in Argentina). Will I get the update? I didn't get it so far and when I try to manually update from System Update and Kies. I'm worried that I won't get it because it's an unlocked phone.
Do I just have to wait or there is a different procedure for unlocked devices? Thanks in advance!
Same here I have carrier unlocked s5 active g870a at&t and no at&t support here in India .....still on 4.4.2 Stock and didn't get OTA update 4.4.4 and I am sure will not get 5.0 lollipop either. ..kies is not updating my device.....so where can I download 5.0 official at&t update flashable ZIP folder....wherever it's available. .....because I couldn't find 4.4.4 official at&t flashable ZIP folder update till now....thanks in advance
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Either way, the 5.0 update is not out yet for the S5 Active....we're still waiting.
I don't know what is S5 Active. My phone is SM-G900A and I've read that it got the update this week (sorry, I can't add a link because I'm a new user).
If I won't get the update because I'm not using AT&T, what can I do? I don't want to root and flash a rom.
bump
Using an unlocked AT&T S5 in Canada.
Can't get 4.4.4 or 5.0 OTA (says no update available). Been using stock firmware ever since I got it.
Any Odin useable firmware I can use?
(is the firmware here safe to use with Odin? : http://forum.xda-developers.com/att-galaxy-s5/general/ota-update-5-0-t3076449)
Edit: Also, why doesn't SAMMOBILE have the 4.4.4 update? : http://www.sammobile.com/firmwares/database/SM-G900A/
Attached proof that Kies is complete BS.
(screenshot taken today... two official firmwares after the "latest" one in Kies)
Search for OA1 & OC4 stock zips, there are both on a thread. You can flash them via stock recovery.
where can i download official 4.4.4. Updated (zip and flashable) for samsung s5 active g870a ....it's not available on sammobile.....no at&t OTA Support here in India. ...because before getting 5.0 I should be on 4.4.4 . please help...
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Does anyone knows if you keep "the sim unlocked" thing after you have updated? because in this link (reddit dot com) /galaxys5/comments/3qgvom/android_511_lollipop_g900aucu4coi5_firmware/ this guy provides the update file for 5.1.1 to install it from the SD via the recovery, but I haven't done it because I don't know if I will keep my "sim unlock" status... (docs dot google dot com) /uc?id=0B11_scgy1qonMW45T0lRbXQ3ZHM&export=download
Hey guys!
I'm in Russia, have an unlocked G900A, I was on 5.0 OC4 and now I'm on 5.1.1. Just flashed ZIP-files through stock recovery. But after update it was factory reset, but it doesn't matter for me. And, I'm unlocked! It doesn't lock to AT&T again!
Just flash zip files from here
RENAME FILE TO UPDATE.ZIP AND PLACE IT TO EXTERNAL STORAGE!
bender19911 said:
Hey guys!
I'm in Russia, have an unlocked G900A, I was on 5.0 OC4 and now I'm on 5.1.1. Just flashed ZIP-files through stock recovery. But after update it was factory reset, but it doesn't matter for me. And, I'm unlocked! It doesn't lock to AT&T again!
Just flash zip files from here
RENAME FILE TO UPDATE.ZIP AND PLACE IT TO EXTERNAL STORAGE!
Click to expand...
Click to collapse
Thanks for the info!!! I'm going to try out then, and let you know.
:good:
bender19911 said:
Hey guys!
I'm in Russia, have an unlocked G900A, I was on 5.0 OC4 and now I'm on 5.1.1. Just flashed ZIP-files through stock recovery. But after update it was factory reset, but it doesn't matter for me. And, I'm unlocked! It doesn't lock to AT&T again!
Just flash zip files from here
RENAME FILE TO UPDATE.ZIP AND PLACE IT TO EXTERNAL STORAGE!
Click to expand...
Click to collapse
Do you know if the same happens if you downgrade to KitKat (4.4.2 or 4.4.4) because I've found a tutorial to downgrade (mine is in 5.0) to get better battery life and root capabilities.
thanks in advance:good:
No, you can't downgrade anyway. I'm afraid, you can get a brick. So, I highly don't recommend you to try downgrade. Or wait for the guide, how-to downgrade.
I'm on 5.1.1 and I don't like it, because it works slower then 5.0. But I don't want to get a brick if I try to downgrade.

Downgrade to NCE

I have a Galaxy S5 (G900A), rooted on Lollipop 5.0 (0F3) using prerooted firmwares to upgrade from rooted kitkat. My bootloader version is still OA1. I want to downgrade now to kitkat so i can use safestrap. I was wondering if i could downgrade using the G900A_Downgrade_to_NCE.tar mentioned here and here, since i still have to OA1 bootloader, to downgrade without bricking my phone.
treyboyd98 said:
I have a Galaxy S5 (G900A), rooted on Lollipop 5.0 (0F3) using prerooted firmwares to upgrade from rooted kitkat. My bootloader version is still OA1. I want to downgrade now to kitkat so i can use safestrap. I was wondering if i could downgrade using the G900A_Downgrade_to_NCE.tar mentioned here and here, since i still have to OA1 bootloader, to downgrade without bricking my phone.
Click to expand...
Click to collapse
Yes you can use that downgrade file. I have used it many times. Your phone might run real laggy though after you downgrade. There is a thread somewhere that shows how to fix that issue. I'll see if i can find it for you.

Can it unroot straight to MM?

I rooted when the phone first came out and have been on Clean Rom ever since. I want to unroot, and move on the the latest MM update since development has stopped. My question is, do it have to Odin back to an original lollipop firmware, or can it just Odin straight to the latest MM firmware. Will I lose all my data and settings?
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