Downgrade Firmware - AT&T Samsung Galaxy S6

Hey guys apparently there is no way to root a 5.1.1 device, but is there a way to downgrade the software to a version I can root? I desperately need to disable the recent tab button as all my phone does is flip between all my apps at random. The only thing I can use it for is to make a call and even that is difficult when the screen keeps flashing between different apps. I have done factory reset, I have un-installed every app I installed and AT&T and Samsung won't help me because my water mark is tripped do to taking the phone in the bathroom with me when I shower cause I have kids...Didn't know about that f-ing scam till I read about it, so now I don't have a phone that works. My only saving grace is I read you can disable the recent tab button if you root the device. Please help!! Oh sadly my phone is only 5 or 6 months old

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[Q] Kingo Root Question

I used the Kingo Root method to root my Note 3 that was running 4.3. When I decided that I was ready to go ahead with the AT&T 4.4.2 FOTA; I used it to un-root so my phone would accept the update. Both processes indicated that they were successful. However; my Note 3 will not accept the update under any circumstances. It downloads the FOTA - which takes close to an hour - and gets to the 25% install point after rebooting and fails with "Invalid Signature" appearing for a few seconds after the "Installation Failed!". It then unceremoniously does a factory restore and I'm left with, yet, another setup procedure and reinstallation of all of my apps, passwords, etc.
This has happened twice with two different phones - the other being my Samsung S4. Exactly the same sequence. I took the S4 to Best Buy, after AT&T forced an update to it, and it, too, failed. Samsung did a direct flash to the S4 and it indicated that it took the 4.4.2 successfully. However, when the phone rebooted, it was still 4.3. Samsung scratched their head and couldn't figure it out. I see no sense in try to do the same with the Note 3 since it will likely be the same experience.
Neither phone show the KNOX trigger having been tripped, and both show "Official" as though nothing had ever been done. I never did any modifications to either phone, other than the root / un-root to stall the FOTA, until I was sure that I was comfortable with the update.
I sent an email to the same effect as this post to Kingo, with no response.
Has anyone had the same experience?
I know that for a while, there was a great deal of concern over the Kingo Root method, but thought that it had been resolved and that any myths had been debunked.
Did I shoot myself in the foot?
Hey friend, this has been asked A LOT in this forum. All you had to do what look through the first page and you'd see this topic.
However you're scared and our phone are probably our more personal and needed device so I understand your impatience and panic.
How to fix: http://forum.xda-developers.com/showthread.php?t=2701062
Be well, relax, everything is going to be ok. You're not alone . We're with you my new friend.
Sent from my SM-P600 using Tapatalk
Sorry for posting in the wrong thread. I searched over the weekend, but didn't see what looked like an answer.
Thank you so much for posting the direct link! And, thanks for not mountain climbing me about the gaffe.
I'm still fairly new to this, so I genuinely beg everyone's pardon for the mis-post. I'm still trying to learn how to navigate through the different sub-forums. I'll try to be more courteous in the future.
Now, I'm in a REAL pickle! AT&T is trying to cram KK down my throat on my Note 3 and I have about 4 hours (according to their website) to respond before they force it. On the AT&T variant; there is no way that I know of to block the update; except temporarily. Then; it's back to the wash, rinse, repeat cycle of having to restore my phone and apps - EVERY time the update fails!
I still haven't done the downgrade; because after rooting and installing a custom 4.4.2 ROM on my kid's phone least night; I decided that I want to re-root my Note 3 and install KNOXRAID as a custom on my Note 3.
My dilemma is; if AT&T crams the update down my throat - as they did with my S4; it's going to fail again, and I'm going to have to start from scratch again, and again until I find a solution.
I tried re-rooting my Note 3 with Kingo, but it fails every time, now.
So; what should I do? My hunch is that I'm going to have to do the 4.3 fix and restore it back to factory, but then it would allow AT&T to actually force THEIR KK into the N3, and I'd be screwed, until a root method is obtained for KK.
PLEASE! Any suggestions? I suppose, for the short term; I could cut off my N3; install my SIM into my S4 and use it until I'm able to resolve the issue with the N3. I need Total Recall to work on my N3, and KK will definitely kill it.
*UPDATE* I turned the N3 off, removed the battery and SIM and installed the SIM in the S4, and am using it for the short term. Unfortunately; my S4 already has the AT&T KK update installed, and I need to resolve the issue with the N3 as quickly as I can. My hunch is; to avoid them doing it again; I'm going to have to turn off Wi-Fi and place the N3 in "Airplane" mode and leave the SIM card out of it until I'm comfortable - and have a clear method of installing KNOXRAID.
Still hoping for a solution. At this pint; I'm not that concerned about tripping the KNOX sensor on the N3, but would prefer to be able to flash back if I needed to enforce my warranty.
Thanks!

Lagging/Keyboard/Notification issues after Towelroot

Actually, Towelroot may not be related, but oddly enough my phone did a couple of app updates and then Tmobile could tell my phone was rooted. Then it started acting really weird. I got a green LED notification but had none in any apps. The stock keyboard gets really laggy. (1 press per 4 seconds), if you try to long press to move a widget/button or anything, the phone hangs up.
I am almost convinced it is something Tmo is doing. The phone shows in Tmo My Accounts that the phone is rooted.
I tried to unroot (SuperUser is a no-go), I tried downgrading using downgrade methods but I get an error and it shuts down. I don't know where to start now. My phone will be kicked back from Tmo if I try to send it in. I knew one day Root Exploits would catch up with me.
If anyone has a bright idea other than wait till there is a fix, I am all ears.
Brutal-Force said:
Actually, Towelroot may not be related, but oddly enough my phone did a couple of app updates and then Tmobile could tell my phone was rooted. Then it started acting really weird. I got a green LED notification but had none in any apps. The stock keyboard gets really laggy. (1 press per 4 seconds), if you try to long press to move a widget/button or anything, the phone hangs up.
I am almost convinced it is something Tmo is doing. The phone shows in Tmo My Accounts that the phone is rooted.
I tried to unroot (SuperUser is a no-go), I tried downgrading using downgrade methods but I get an error and it shuts down. I don't know where to start now. My phone will be kicked back from Tmo if I try to send it in. I knew one day Root Exploits would catch up with me.
If anyone has a bright idea other than wait till there is a fix, I am all ears.
Click to expand...
Click to collapse
Has nothing to do with rooting your phone. I wasn't rooted for 2 months and it was doing that switch to the g3 keyboard in the g2 thread use the apk installer
D-FUSE said:
Has nothing to do with rooting your phone. I wasn't rooted for 2 months and it was doing that switch to the g3 keyboard in the g2 thread use the apk installer
Click to expand...
Click to collapse
The new android L keyboard in the playstore is really smooth too. No lag, good feel, has emojis if that matters to you. There's a thread in the apps section for the 5.0 keyboard you can manually install and it'll have more skins but the easiest way is to install from the playstore.
Edit: T-mobile keeps track of rooting somehow? How have I never heard that!? Seems like something a Dev or someone would have figured out how to block or what app they're using to spy. That sucks especially in regards to warranty etcetera being denied.
Its not just the Keyboard. I too switched the thumb keyboard which resolves the lagging key-input, but there is also a blinking green led notification that won't go out and I can't answer the phone because touch input (drags and long presses) are buggered.
I have installed TWRP, gonna Try to install a rom and fix it

[Q] Power-On Lag/Freezeing

So i've been experiencing this issue for months now. I've had the issue since i've gotten the phone but its the past few months that its really gotten bad. So before anyone jumps the gun, i've done quite a bit of research on this and cannot find anything worthwhile, more on that soon.
So as usual, i'll pickup my phone and press the power button or the home button to turn on the screen, but at completely random times the screen will not come on at all. Sometimes the capacitive buttons will light up (maybe 15-20% of the time), but not always.
In my searches I found the following solutions to this problem:
Get a new sim card
Dont use an SD card
Get a new battery
Check the leads on the battery and phone for cleanliness
Factory reset
Remove 1 app at a time and test until it stops happening
Dont freeze any apps
Restore stock firmware
Dont use SetCPU
Turn off animations
Get rid of the lock screen
Remove custom message from lock screen
Clear cache through Recovery
Dont restore data with Titanium Backup when restoring apps
Turn off WiFi and/or Bluetooth and/or GPS
Dont use GreenPower or Greenify
Avoid stock launcher
I have tried all of the above except for removing 1 app at a time (and those that dont apply). I'm deep into that one and only have a few apps left to try. This is something that happens at least once a day, but typically 3-5 times in a day. I used to think i could make it happen by pressing the power button to turn on the screen and immediately hit it again to turn it off. It would sometimes work but that doesnt trigger it anymore.
My phone used to be rooted, but being on AT&T there was no "normal" way to flash a good recovery like CWM or TWRP and install roms, you have to use some other thing which i dont use. So i've always had stock recovery, im fully updated to the newest stock rom that is out, update came OTA which was after i removed root and used odin to flash an older stock rom back. My wife's Note 3 also has the same issue and it has never been rooted, we have gone through all of the above and still it continues to happen.
Also on a side note, my phone was swapped out because of an issue it had 3 months after i purchased the phone. I was able to get a brand new one, not refurbished. The issue had occured once or twice before the swap and an incredibly frustrating amount of times since then.
Reading through most of the other threads, everyone seems to have to remove their battery and re-insert it to get back into their phone. The ones that dont have to do that have found that removing their SD Card, getting a new one, sending the phone in, or one of the other options have worked. However for me, nothing has worked.
Does anyone have any other ideas? Is this common on the Note 3 (I've had it since release)? 70% of the time i can hold the power button for a few seconds to try and bring up the power menu and it works, but not always.. I usually just have to wait up to a minute or two (never actually counted, i use my phone for that stuff...which.. isnt..working...)
I've had wake lock lag on a few android phones. Even iPhones.
I would highly recommend rooting it on att and flash a mod that reduces it on the note 3. I talked about it here.
http://forum.xda-developers.com/showthread.php?t=2628716
Rebooting the phone always helps.
wudien said:
I've had wake lock lag on a few android phones. Even iPhones.
I would highly recommend rooting it on att and flash a mod that reduces it on the note 3. I talked about it here.
http://forum.xda-developers.com/showthread.php?t=2628716
Rebooting the phone always helps.
Click to expand...
Click to collapse
Unfortunately I cannot root my phone. I have to have my company email on my phone, and for Android devices they use Air Watch. I tried for weeks to get it working while rooted, and even used Root Cloak or something like that (with Wanam Xposed) to hide root from specific apps. Air Watch was specifically tested to work with that app but it still for some reason didn't work (new version of Air Watch perhaps with no update to Root Cloak? Just my guess). I had to remove root, factory reset and re-flash stock from Odin (that was a dual purpose flash) to remove all traces of Root so I could use Air Watch for my company email/calendar/contacts/etc again, even after unrooting and using all the cleanup tools, triangle away, and everything, it still detected my phone as rooted...
However, I don't think that's really a viable solution to the problem, that's more of a band aid. Looking at that thread and looking around, it seems to work well but I still haven't found anyone with my same issue where they used it and it worked. I would like to narrow this down to what the issue is exactly, the root cause. I think its a problem with KitKat, or at least all of 4.4.x (not sure about 4.4.4 yet).

Security Notice

Hello and good day to every one.
I did a search and cannot find anything related to this issue for the S6 only the previous versions (S5,S4 ect..)
Every ten minutes the phone gives me a notification saying unauthorized actions have been detected restart to undo any unauthorized changes...I know its KNOX is there a fix for this?? or should i just install a custom rom with KNOX removed?
ant0321 said:
Hello and good day to every one.
I did a search and cannot find anything related to this issue for the S6 only the previous versions (S5,S4 ect..)
Every ten minutes the phone gives me a notification saying unauthorized actions have been detected restart to undo any unauthorized changes...I know its KNOX is there a fix for this?? or should i just install a custom rom with KNOX removed?
Click to expand...
Click to collapse
Hello,
I had the same issue appeared as soon as I got my phone. During activation the same message kept popping up and wouldn't go away after I restarted the phone. I tried everything and eventually had to call Samsung and they acknowledge there was an issue with some of their phones. She told me to return it and exchanged it for another one. This new one has no issues at all, except the home button is recessed towards the front of the button. By the way I am not rooted since I just got my phone a couple of days ago.
Damon13 said:
Hello,
I had the same issue appeared as soon as I got my phone. During activation the same message kept popping up and wouldn't go away after I restarted the phone. I tried everything and eventually had to call Samsung and they acknowledge there was an issue with some of their phones. She told me to return it and exchanged it for another one. This new one has no issues at all, except the home button is recessed towards the front of the button. By the way I am not rooted since I just got my phone a couple of days ago.
Click to expand...
Click to collapse
ohh okay thanks i may just put a rom on it, I dont really want to go through the entire process of getting another phone especially since this one was shipped to me as an upgrade.
ant0321 said:
ohh okay thanks i may just put a rom on it, I dont really want to go through the entire process of getting another phone especially since this one was shipped to me as an upgrade.
Click to expand...
Click to collapse
Check this link, post #64
http://forum.xda-developers.com/gal...horized-actions-detected-error-t3121228/page7
heyy that helped a bunch i didnt understand what they meant by using smartswitch and running the update that way but i used flashfire anf flashed the OTA and the OTA is updating as i type this thanks man!!!
hi
i have the same issue..i am new so dont know what ROM is...I just got the phone today..really dont wanna go through replacing the phone

Need help in rooting samsung galaxy s5 for at&t

Hi Everyone,
I wanted to reach out to this group to seek urgent help. I have the samsung galaxy s5 from at&t and it has the latest update of 6.0.1 in installed in september. After that started the issues. My phone got extremely..i mean literally hot while charging and a complete charge never lasted more than a few hours with battery draining like crazy. I thought it could be apps and i disabled location, bluetooth, removed apps that i dont use, stopped some apps that i felt not needed, yet the battery drain and heating persisted. I did a factory reset multiple times and it did not help. I did the wipe cache partition too yet even that did not help. Few days ago another issues started. My NFC enabled automatically and the option to disable it was greyed out and i was not sure on how to switch it off. the last straw was Wi-Fi which got switched off and the option was greyed out with me having no chance to enable it and connect it to Wi-Fi. I was totally flumoxed on what was happening. I reached out to samsung and also at&t and essentially they disowned me saying the phone is out of warranty and they can not help. I still owe 3 more EMI to at&t and i hold a $650 brick technically.
I tried rooting it through "towelroot" but the app said its not compatible with this phone. i tried Odin and run the stock rom but the process was always stuck at connection even though the driver was all identified. I wanted to install the CM13 or CM14 to see if i can get my phone back but without the phone being rooted, i was in no position to run the custom ROM or install the recovery. I have been searching google for the last 2 days to see if there is any method which will help me but i was not able to get any. I knew XDA Developers was a group of members who are experts in helping android users realize the true potential of the smart phones.
Can anyone please help me in resolving the issue. My phone model is SM-G900A and it has the knox and android 6.0.1 update.
Thanks &regards
KC
Email - [email protected] / [email protected]

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