Hi,
Is it possible to downgrade the firmware back to BRJ6, where I can sideload the pie beta? Im currently on G960FXXU2BRK2/G960FOXM2BRJ5 but wanted to flash back to G960FXXS2BRJ6/G960FOXM2BRJ3.
Also does a downgrade to an official samsung firmware via odin trip knox?
thanks
Yes just flash normally with ODIN
And no, flashing stock images with ODIN will not trip knox
Related
How do I downgrade my S3 i747 from 4.3 to 4.2.1?
tmpro said:
How do I downgrade my S3 i747 from 4.3 to 4.2.1?
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Click to collapse
If your phone is running a stock 4.3 bootloader, you cannot downgrade the bootloader, only the OS.
audit13 said:
If your phone is running a stock 4.3 bootloader, you cannot downgrade the bootloader, only the OS.
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Click to collapse
Do i need to downgrade my bootloader to downgrade to 4.2.1? All I want to do is revert back to 4.2.1 OS.
Do you have access to the stock AT&T 4.2.1 ROM? I looked on sammobile and couldn't find it.
You may be able to downgrade to 4.2.1 using mobile Odin but you would need root access on your current ROM.
Do you have knox on your phone? If you do, knox may interfere with obtaining root. Also, tripping the Knox counter will void any warranty left on your phone.
audit13 said:
Do you have access to the stock AT&T 4.2.1 ROM? I looked on sammobile and couldn't find it.
You may be able to downgrade to 4.2.1 using mobile Odin but you would need root access on your current ROM.
Do you have knox on your phone? If you do, knox may interfere with obtaining root. Also, tripping the Knox counter will void any warranty left on your phone.
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No i do not have access to 4.2.1 ROM that why i was asking here to see what i could do. I thought with Odin you could flash stock firmware with out being rooted. No i do not have Knox on my phone.
tmpro said:
No i do not have access to 4.2.1 ROM that why i was asking here to see what i could do. I thought with Odin you could flash stock firmware with out being rooted. No i do not have Knox on my phone.
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Click to collapse
You don not need to be rooted to flash with Odin but you need a ROM that can be flashed via Odin. Unless AT&T released full a 4.2.1 ROM, it's unlikely you will find one on the Internet.
If you try to flash a stock ROM using desktop Odin that includes an older bootloader, you will probably brick your phone.
Hi guys can someone help to update my GT-N7100 which running on official 4.1.2 to official 4.4.2 N7100XXUFND3 Without Installing Knox By Trying Like This Method I Saw On Youtube : How to remove KNOX Bootloader on Samsung Galaxy S4 Mini firmware (with Linux)?
-On This Official Rom "N7100XXUFND3" (The Question Is Can I Delete The "sboot.bin" And/or "boot.img" From This Rom And It Will Not Update My Bootloader To Knox When I Flash It With Odin 3.07 Or It Will Hard Brick My Device).
Thanks In Advance,Any Help Or Info Is Really appreciated .
(And Excuse Me If There Is Any Mistakes In My Language).
Wifi with bootloader older than 4.3 not working at 4.3 or 4.4. OK now for this method first you need root and second you have to flash mj5 bootloader, it is writing Knox bit etc but is cosmetic and is possible to downgrade at everything you want. After you have to use mobile Odin to flash 4.4.2 official from your device (mobile Odin flashes everything except bootloader) and you will be ready but not rooted. If you need root you have to flash philz recovery 6.25... + and flash from recovery supersu update 1.94. After root also you can remove with a root file manager completely Knox apps from your device. If you want to restore warranty flash again original recovery with mobile Odin (if you don't want to extract the firmware put all firmware at mobile Odin at the place which is writing recovery) and after run triangle away 3.26. Links you can find at forum. If you own mobile Odin pro is good to know that ever root for the moment not working at 4.4.2 and you have to do the same procedure.
Sent from my GT-N7100 using Tapatalk 2
I've got a Lollipop 5.1 ROM installed but want to go back to the stock NK2 Touchwiz ROM. When I flash the ROM zip in CWM the phone isn't able to boot into the OS - it tries to, fails, and then automatically boots back into recovery.
You must do a factory reset and use odin to flash the full firmware NK2 in order to go back to kitkat.
Pp.
PanchoPlanet said:
You must do a factory reset and use odin to flash the full firmware NK2 in order to go back to kitkat.
Pp.
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I see. So in general, to downgrade you want to use Odin. To upgrade you can flash directly within CWM?
fuzzybabybunny said:
I see. So in general, to downgrade you want to use Odin. To upgrade you can flash directly within CWM?
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Downgrading involves full firmware thus needing odin to install the full firmware.
CWM basically flashes just a rom or update and doesnt install full firmware which would be needed to downgrade, upgrade or switch operating system.
Pp.
Wow, I think I'm officially done with third party unofficial ROMs.
Now I'm reading that its impossible to downgrade even with Odin due to KNOX?
http://forum.xda-developers.com/galaxy-s4-tmobile/general/firmwares-official-mdl-mk2-nb4-t2816508
"if i upgraded to NB4, is it possible to go back to MK2 or MDL via the same method with odin?
no you can no longer downgrade and will have the knox bootloader"
fuzzybabybunny said:
Wow, I think I'm officially done with third party unofficial ROMs.
Now I'm reading that its impossible to downgrade even with Odin due to KNOX?
http://forum.xda-developers.com/galaxy-s4-tmobile/general/firmwares-official-mdl-mk2-nb4-t2816508
"if i upgraded to NB4, is it possible to go back to MK2 or MDL via the same method with odin?
no you can no longer downgrade and will have the knox bootloader"
Click to expand...
Click to collapse
Yes, but the knox thing is only an issue if your phone is under a year old and under Samsung warranty, in which case if Samsung gets your phone for some warranty related work they can technically refuse or charge you for repairs.
The newer knox firmwares are improved over the older version, better call quality, faster processing, better memory management, so it's not a bad thing to upgrade your firmware, it's actually beneficial.
I knoxed out 30 minutes after I had phone out of the box when I got my S4, made sure there where no issues everything worked the way it was supposed to and rooted and got rid of the bloatware.
And still have original phone, no returns or exchanges.
Pp.
I have a Note 3 and im trying to figure out the process of rooting without tripping the Knox Counter. I rooted my Note 2, years ago and has been awhile. Also like to know is there a "triangle away" method to reset the counter.
Model: SM-900T
Android: 5.0
Baseband: N900TUVUFOL1
Kernel: 3.4.0-6005498
Knox: 2.3
Thanks in advance
As far as I know, there is no way to root without tripping Knox.
If the phone is not under warranty, tripping knox should not be an issue. I have tripped Knox on a few phones and have never had an issue.
I asked the same question a while back, and only just 2 days ago rooted my SM-N900T knox 0x0. Asked: Here.
To achieve root on the note 3 without tripping knox you must downgrade from the Lollipop firmware OB6, or FOL1 to NE6 using PC Odin.
Once downgraded to NE6 download and use TowelRoot. This will unlock root without tripping knox, NE6 was the last vulnerable firmware for towelroot on the t-mobile note 3.
Make sure you are flashing official t-mobile firmwares only for kitkat/lollipop when using PC odin.
Flashing any custom recovery, kernal, rom, bootloader, or no longer supported android version (4.3 jellybean) will trip knox.
You can use sammobile to get official firmwares, or if you're risky there are likely download mirrors scattered through the internet.
Once you're rooted on kitkat NE6, to get back to Lollipop and keep root you'll need Mobile Odin Pro to flash FOL1 with the latest Super SU Zip v2.46. (instructions first page of this thread: Here.)
Rooting seems to require some gonads and research first.
When using PC Odin I left options default (Auto Reboot and F. Reset Time).
When using Mobile Odin Pro (or maybe flashfire) make sure to uncheck EverRoot!
Flashfire is the newer free mobile odin pro I think. You might be able to use it in place of Mobile Odin Pro and instead of the supersu zip in addition to flashing FOL1 it comes with an option to inject SuperSU.
I recommend sticking with mobile odin pro for confirmed results. MOP does not support Lollipop.
Note that once you're rooted and upgrade to Lollipop your android system status will change from normal to custom. This prevents future OTA updates.
Root survives factory reset, but flashing official firmware with pc odin will make your phone genuine again as long as you didn't trip knox.
Downgrading to kitkat will very likely require a factory restore. Possibly also when upgrading back to Lollipop.
Note that the XPosed framework on lollipop and samsung touchwiz stock roms does not seem supported.
It seems some people have flashed a Deodexed rom and unofficial xposed to have it working. I made a single attempt and was unable to have it working.
I assume you could stay on kitkat and manage to get xposed working easy.
If you decide to use xposed, do not try to flash the framework without mobile odin pro, or flashfire.
Using a custom recovery, or flashing anything custom with PC Odin will trip knox.
Look over the information around to get a comfortable understanding and good luck!
Proceed only with the understanding that you could always on accident trip knox, or brick your phone.
I believe there is no known way to reset knox flag to 0 on the SM-N900T.
For future readers using a newer firmware than FOL1 it may no longer be possible to pc odin downgrade to kitkat without tripping knox.
So there is no way of downgrading without tripping knox
You can downgrade to kitkat NE6 using PC odin from t-mobile lollipop firmware OB6/OL1. (OL1 being the latest lollipop firmware, OB6 a version older). Once on kitkat NE6 firmware u can use towelroot to gain root and you will not trip knox. Unless you manage to check an option somewhere during this process that would cause you to trip knox. .
As stated, I achieved downgrading/rooting without tripping knox just a couple days ago from the current latest t-mobile galaxy note 3 (SM-N900T) firmware FOL1.
I then upgraded back from KitKat NE6 to Lollipop FOL1 using mobile odin pro.
You can probably downgrade to any 4.4 kitkat firmware, NOT 4.3 jellybean, just fine without tripping knox if you have a kitkat, or lollipop firmware up to FOL1.
I'll try it later, I also want to know if custom roms are possible
From what I've read you can install a custom rom as long as it has a stock kernel, otherwise you trip knox. You would need to flash with flashfire, or mobile odin pro though...
I've only used the stock firmware on my note 3 so don't completely know about using a custom rom.
I don't think a custom ROM can be flash via Odin. A custom ROM requires a custom recovery and a custom recovery will trip Knox on a stock KK or LP AFAIK.
Ohh ok. This is all sorta new to me as well. I had just assumed mobile odin pro could because FlashFire is its "successor".
Samsung is [probably] rolling out Marshmallow for our SM-T705. How do we un-root and back to stock in order to get OTA by the time samsung actually release it? I've rooted my device with Odin and CF-Autoroot and also TWRP is installed. Thanks! :highfive:
+1
Just flash a the lollipop stock rom for your country with odin, it will remove twrp and root and you will get the ota update.
John.