Database Users

[Q] Downgrade to older stock ROM N9005?

Hey all!
Is it possible to downgrade from a newer (NE3) firmware to an older (ND3) through Odin or it will brick my phone because of the bootloader?
The only things I know are that 1) Downgrade from 4.4.2 to 4.3 is not possible 2) It's possibile to install a custom older rom on new bootloader and vice versa BUT I don't know if it's possible with stock roms with Odin.
I looked for a solution but nothing found and no one answered me so I opened this thread to find out a solution.
Thanks in advance.

UP still interested because NE4 + custom kernel gives problems that others doesn't have
Sent from my SM-N9005 using XDA Premium 4 mobile app

Dan
I also wanted to do dawngrade because the because the 4.4.2 is **** battery does not hold as it should as was holding before the update

kylothow said:
Hey all!
Is it possible to downgrade from a newer (NE3) firmware to an older (ND3) through Odin or it will brick my phone because of the bootloader?
The only things I know are that 1) Downgrade from 4.4.2 to 4.3 is not possible 2) It's possibile to install a custom older rom on new bootloader and vice versa BUT I don't know if it's possible with stock roms with Odin.
I looked for a solution but nothing found and no one answered me so I opened this thread to find out a solution.
Thanks in advance.
Click to expand...
Click to collapse
I never actually tried going back to an older version but I really don't see why you shouldn't. As long as it's KitKat 4.4.2 just try it should work. I downgraded my Modem and haven't had any issue.
With the Bootloader worry...did you even change the bootloader? As well as the Modem you have to do that separate to the Rom, as flashing a Rom doesn't touch Modem an Bootloader!!! If you don't know how to do that please just leave it alone though unless you read, read, read a lot on how to do that.

4aces said:
I never actually tried going back to an older version but I really don't see why you shouldn't. As long as it's KitKat 4.4.2 just try it should work. I downgraded my Modem and haven't had any issue.
With the Bootloader worry...did you even change the bootloader? As well as the Modem you have to do that separate to the Rom, as flashing a Rom doesn't touch Modem an Bootloader!!! If you don't know how to do that please just leave it alone though unless you read, read, read a lot on how to do that.
Click to expand...
Click to collapse
Thanks for the reply, every time I install a new rom I make sure to update the bootloader and modem too, and from what I can read from the Synapse app I have the NE3 modem and NE4 bootloader.
I'm asking how to go back to older roms because going from 4.4.2 to 4.3 updating the bootloader with Odin you obtain only a fancy paper weight, and I didn't know if going from newer to older 4.4.2 bootloader it was the same story.
Sent from my SM-N9005 using XDA Premium 4 mobile app

kylothow said:
Thanks for the reply, every time I install a new rom I make sure to update the bootloader and modem too, and from what I can read from the Synapse app I have the NE3 modem and NE4 bootloader.
I'm asking how to go back to older roms because going from 4.4.2 to 4.3 updating the bootloader with Odin you obtain only a fancy paper weight, and I didn't know if going from newer to older 4.4.2 bootloader it was the same story.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm pretty sure there won't be an issue mate since I flash between custom roms almost daily which are most of the time different models. If you want to be 100% sure wait for someone to confirm as I'm rooted since I got the chance to do so.

Thanks to the developer Civato I read on his FlexKat thread he correctly downgraded his bootloader from NE6 to ND6 with Odin...
So problem solved, this is definitely possible.
Thank you everyone for your replies :good:

Downgrading bootloaders on the same version generally tends to work OK, mainly because on 4.3 Samsung patched the security flaw which stopped you going <MJ7
Kith Kitkat I never had any issues flipping back and forth.--- Until it's a BL upgrade with OS Number change (IE: 4.4.3 if it has new BL) then it shouldn't work.

hi. sorry,this is probably an old thread but I need some help,please and somehow,Google got me here. I want to downgrade (not really downgrade) my N9005 to 4.4.2.
I currently have a custom ROM(resurrection remix v5.6.9,in settings it says that I have android 6.0.1 marshmallow). Also,I have a custom recovery(TWRP). Well,I would like to install the KitKat stock ROM and really did a lot of research but I cannot find it anywhere :'( . Do you know any source? And also,can I flash it with mobile ODIN? When I opened Mobile Odin Pro it said that if I don't have the boot loader for the ROM I want to install then I will experience a soft brick. Isn't TWRP a good boot loader?
Also,does it matter what version of N9005 I own? mine is: XXUGBOJ1. Could I flash smth that is not for this ..base band is it called?...
pls help
I'm such a newbie and I don't wanna mess up

PainCutter said:
hi. sorry,this is probably an old thread but I need some help,please and somehow,Google got me here. I want to downgrade (not really downgrade) my N9005 to 4.4.2.
I currently have a custom ROM(resurrection remix v5.6.9,in settings it says that I have android 6.0.1 marshmallow). Also,I have a custom recovery(TWRP). Well,I would like to install the KitKat stock ROM and really did a lot of research but I cannot find it anywhere :'( . Do you know any source? And also,can I flash it with mobile ODIN? When I opened Mobile Odin Pro it said that if I don't have the boot loader for the ROM I want to install then I will experience a soft brick. Isn't TWRP a good boot loader?
Also,does it matter what version of N9005 I own? mine is: XXUGBOJ1. Could I flash smth that is not for this ..base band is it called?...
pls help
I'm such a newbie and I don't wanna mess up
Click to expand...
Click to collapse
Get a 4.4.2 fw and flash with windows odin. Not really familiar with mobile odin. Find fw for you country csc. Flashing other csc fw sometimes requires pit file so better get the 1 for your country or originally came with the phone.
Sent from my SM-N920C

Rosli59564 said:
Get a 4.4.2 fw and flash with windows odin. Not really familiar with mobile odin. Find fw for you country csc. Flashing other csc fw sometimes requires pit file so better get the 1 for your country or originally came with the phone.
Sent from my SM-N920C
Click to expand...
Click to collapse
I'd do that..my csc is for Romania. But I cannot find anywhere on the Internet the fw. And I searched alot

PainCutter said:
I'd do that..my csc is for Romania. But I cannot find anywhere on the Internet the fw. And I searched alot
Click to expand...
Click to collapse
Samsung updates.com.
I can see a few for Romania with CNX, ORO, COA, ROM, HAT csc.
But they very old. Probably not downloadable.
Sent from my SM-G925F

(Help)(Q) Downgrade Lollipop To Kitkat

can we downgrade safely 5.0.1 Lollipop to Kitkat 4.4.2 ???
model - S4 I9506 LTA
if any1 know it then plz share it step by setp....
bcoz i m noob and as far as i know that downgrading is very risky ?

edit
cant be bothered

DSA said:
edit
cant be bothered
Click to expand...
Click to collapse
please give me solution ??

Take a 4.4.2 package unpack it and remove bootloaders, then repack and test.
You can opposedly to SGY firmwares (s5360) open S4 firmwares with Winrar / 7-Zip.

Killnolife said:
Take a 4.4.2 package unpack it and remove bootloaders, then repack and test.
You can opposedly to SGY firmwares (s5360) open S4 firmwares with Winrar / 7-Zip.
Click to expand...
Click to collapse
Thanks for reply.... but it is safe to repack the firmware? and flash after repack?
sorry for ask but some users said there is IMEI null or wifi problem after downgrading? ? is it right?
I m little bit confused. ... if anything goes wrong... my mom kill me ; )

C00l.vishu.ar0ra said:
Thanks for reply.... but it is safe to repack the firmware? and flash after repack?
sorry for ask but some users said there is IMEI null or wifi problem after downgrading? ? is it right?
I m little bit confused. ... if anything goes wrong... my mom kill me ; )
Click to expand...
Click to collapse
User who say that are user who don't even care about their country code nor their CSC
If your CSC is XEF then you have to flash a non-knox 4.4.2 XEF ROM, if wifi/IMEI is null it's most likely a MODEM mismatch.
Just reflash the modem by using Odin3's CP section :good:
EDIT :
Or you may just try Mobile Odin Pro, for a buck it downgrades the phone a simple way.

imei null after downgrading to kitkat on GT-I9500
C00l.vishu.ar0ra said:
can we downgrade safely 5.0.1 Lollipop to Kitkat 4.4.2 ???
model - S4 I9506 LTA
if any1 know it then plz share it step by setp....
bcoz i m noob and as far as i know that downgrading is very risky ?
Click to expand...
Click to collapse
I first rooted and installed SUPERSU on my device with lollipop 5.0.1 to get x mode games. Since xmodgames doesn't support lollipop currently I decided to downgrade my Samsung GT-I9500 from lollipop 5.0.1 to Kit Kat via ODIN after doing a complete wipe via philz_touch_6.12.8-i9500.tar but after the install My mobile had null imei. I was able to successfully root the device and install SUPERSU and Xmodgames also worked fine but without any mobile network due to NULL Imei.
I tried all forums some had software to remove the null state and some had service code etc, but nothing worked and a techie told me that this can now be restored only through some box available only with professionals and asked me a very high fee almost 30% cost of the device.
I finally figured it out and restored my phone back to lollipop 5.0.1 after doing a wipe by PHILZ (without root selected) and my phone was back to its original state.
Hope this helps.

rschauhan said:
I first rooted and installed SUPERSU on my device with lollipop 5.0.1 to get x mode games. Since xmodgames doesn't support lollipop currently I decided to downgrade my Samsung GT-I9500 from lollipop 5.0.1 to Kit Kat via ODIN after doing a complete wipe via philz_touch_6.12.8-i9500.tar but after the install My mobile had null imei. I was able to successfully root the device and install SUPERSU and Xmodgames also worked fine but without any mobile network due to NULL Imei.
I tried all forums some had software to remove the null state and some had service code etc, but nothing worked and a techie told me that this can now be restored only through some box available only with professionals and asked me a very high fee almost 30% cost of the device.
I finally figured it out and restored my phone back to lollipop 5.0.1 after doing a wipe by PHILZ (without root selected) and my phone was back to its original state.
Hope this helps.
Click to expand...
Click to collapse
thnx for reply but as i said about downgrading lollipop to kitkat
i want kitkat back on my phone .. lollipop sucks... worst battery backup , working slow , no silent mode, no fully root , no xposed , no greenfy ( rooted) and many more :crying:
and plz some1 make a new thread for guide downgrading LP to KK step by step ....

The easy way:
1. Flash custom recovery
2. Flash custom 4.4.2
3. Amazing it works.

Killnolife said:
User who say that are user who don't even care about their country code nor their CSC
If your CSC is XEF then you have to flash a non-knox 4.4.2 XEF ROM, if wifi/IMEI is null it's most likely a MODEM mismatch.
Just reflash the modem by using Odin3's CP section :good:
EDIT :
Or you may just try Mobile Odin Pro, for a buck it downgrades the phone a simple way.
Click to expand...
Click to collapse
where to find MODEM and how to check that which modem file work for my device?

Lennyz1988 said:
The easy way:
1. Flash custom recovery
2. Flash custom 4.4.2
3. Amazing it works.
Click to expand...
Click to collapse
thnks .. is it safe ? i mean IMEI null or Wifi or any other issues comes after custom rom?
i am scare

C00l.vishu.ar0ra said:
thnks .. is it safe ? i mean IMEI null or Wifi or any other issues comes after custom rom?
i am scare
Click to expand...
Click to collapse
It's safe.

Lennyz1988 said:
It's safe.
Click to expand...
Click to collapse
ok let me try ... and i will tell u after this...

[Q] N9100 China Dual Sim ROOT for 5.1.1

I just updated my phone to OK1 firmware running on 5.1.1. This si the China variant and not hong kong. I was wondering if there is a working root for this firmware? I've tried the CF auto root of the 4.4.4 version but it sends me into a bootloop. I've searched everywhere but can't find anything. Any help will be appreciated.

I can't root N9100 android 5.1.1 (N9100ZCU1COK1) by root file CF-Auto-Root-trltechn-trlteduoszc-smn9100.zip for android 4.4.4.

Then is there no way to root for that firmware?

anyone? desperately need Gapps on my phone right now...

Hi. I have installed an aurora rom with version 5.1.1 N9100ZCU1COK1 and I'm rooted. But I just kept the root that I had before updating so I didn't use CF-Auto-Root or anything else this time... have you tried kingroot?

Deviatorz said:
anyone? desperately need Gapps on my phone right now...
Click to expand...
Click to collapse
If your n4 is sm-n9100, bought from China, you can directly flash TGY n9100 rom, I got my n4 couple days before(SM-N9100, trlteduoszh), original rom is China version: N9100CHC1COK1-5.1.1, then just download TGY rom, N9100ZZH1BOF2, which is the latest TGY rom, android version: 5.0.1. After odin flash, do doubble wipe, then everythings just fine. like the orignial hongkong N9100, of casuse you get the stock google apps.
I got ota information yesterday, tgy rom got update to N9100ZHU1COL2-5.1.1, I'm not sure to do update, cos I'd heard 5.1.1 won't get root for the new "reactivation lock" issue, anyone have experience of root your tgy 5.1.1?

Chainfire has a new autoroot for N9100 5.1.1. You can download it HERE

ryanxiao said:
If your n4 is sm-n9100, bought from China, you can directly flash TGY n9100 rom, I got my n4 couple days before(SM-N9100, trlteduoszh), original rom is China version: N9100CHC1COK1-5.1.1, then just download TGY rom, N9100ZZH1BOF2, which is the latest TGY rom, android version: 5.0.1. After odin flash, do doubble wipe, then everythings just fine. like the orignial hongkong N9100, of casuse you get the stock google apps.
I got ota information yesterday, tgy rom got update to N9100ZHU1COL2-5.1.1, I'm not sure to do update, cos I'd heard 5.1.1 won't get root for the new "reactivation lock" issue, anyone have experience of root your tgy 5.1.1?
Click to expand...
Click to collapse
hey thanks for your reply. i actually installed and tried aurora Rom and its been working well. however, my signal is not that great (rogers) and im sure its because of the baseband. ill try that rom and see how well its works.
my ROM is using 5.1.1. i dont have the reactivation lock issue

rjma said:
Chainfire has a new autoroot for N9100 5.1.1. You can download it HERE
Click to expand...
Click to collapse
Could you help me add link download file recovery TWRP or CWM for 5.1.1 after rooted ?

mabu_210 said:
Could you help me add link download file recovery TWRP or CWM for 5.1.1 after rooted ?
Click to expand...
Click to collapse
Check post #60 in THIS thread.

SM-N9100 runing Adroid 5.1.1 rooted successfully.
I followed the following link and successfully rooted mine without any problems.
(sorry. I'm not allowed to post an outside link. Google "How to root Samsung Galaxy Note 4 SM-N9100 Android Lollipop 5.1.1" and you should be able to find the article on recovery-mode.com)
Good luck!

I recently bought N9100 in china and then I flashed my new phone with the latest stock rom N9100ZHS1CPE1 (Hongkong) android 5.1.1 via odin. Worked perfectly. No issues.

rjma said:
Chainfire has a new autoroot for N9100 5.1.1. You can download it HERE
Click to expand...
Click to collapse
Hi, I used the CF-Auto-Root downloaded from this link but it didn't work, I had to reflash the stock ROM to be able to boot the phone. Pls help, I need root badly.

seunskills said:
Hi, I used the CF-Auto-Root downloaded from this link but it didn't work, I had to reflash the stock ROM to be able to boot the phone. Pls help, I need root badly.
Click to expand...
Click to collapse
If you now have 6.0.1 rom, try THIS CF-Auto-Root for 6.0.1

rjma said:
If you now have 6.0.1 rom, try THIS CF-Auto-Root for 6.0.1
Click to expand...
Click to collapse
Thanks for your reply rjma, I had 6.0.1 and I used CF-Auto-Root for 6.0.1 to root but it didn't work, it got stuck on boot screen with some errors. That's why I downgraded to 5.1.1 because 6.0.1 doesn't have google appps.

seunskills said:
Thanks for your reply rjma, I had 6.0.1 and I used CF-Auto-Root for 6.0.1 to root but it didn't work, it got stuck on boot screen with some errors. That's why I downgraded to 5.1.1 because 6.0.1 doesn't have google appps.
Click to expand...
Click to collapse
THIS tutorial is for oneplus 2 but you can use it to Note4. This is what I followed and worked for me.

rjma said:
THIS tutorial is for oneplus 2 but you can use it to Note4. This is what I followed and worked for me.
Click to expand...
Click to collapse
I eventually rooted the phone and it's too easy to be true. I downloaded it's specific twrp, flashed it via Odin without the battery so it won't boot up after flashing, then boot into twrp recovery and flashed SuperSU.

seunskills said:
I eventually rooted the phone and it's too easy to be true. I downloaded it's specific twrp, flashed it via Odin without the battery so it won't boot up after flashing, then boot into twrp recovery and flashed SuperSU.
Click to expand...
Click to collapse
I have the exact same problem
what version of supersu did you flash?

Deviatorz said:
hey thanks for your reply. i actually installed and tried aurora Rom and its been working well. however, my signal is not that great (rogers) and im sure its because of the baseband. ill try that rom and see how well its works.
my ROM is using 5.1.1. i dont have the reactivation lock issue
Click to expand...
Click to collapse
N9100 only supports B7, it does not support B2 and B4. And this is the reason why you get a weak signal (B7 is high frequency with poor coverage).

Using the custom recovery posted above I managed to get root. just boot in download mode and remove the battery after that, flash twrp recovery from above link with odin (you can make a flashable .tar.md5 yourself or just use this one:
https://mega.nz/#!xNslVYLa!zDQdqxVyam7H2Q8xzvZnyQ7DyhPqy2jgs1TE1fLEJjo
. put the battery back in and boot into recovery, copy the supersu.zip (I used the latest one from this link: https://download.chainfire.eu/1012/SuperSU/SR3-SuperSU-v2.78-SR3-20161103171345.zip?retrieve_file=1 , but you can use the latest one). Flash it and reboot normally. Don't let twrp root your phone (it will ask you to root when you select "reboot system" from recovery, just select don't install root, or something like this).
Note that the above rooting method worked for the latest 5.1.1 firmware (from 10 October 2016) for Hong-Kong, PDA N9100ZHU1CPI3, CSC N9100ZZH1CPI3.
You can download the firmware from here: http://www.sammobile.com/firmwares/download/102145/N9100ZHU1CPI3_N9100ZZH1CPI3_TGY/
Also, that firmware fixed some rotation issues I had with the previous one.

Downgrading bootloader 5.1.1 on COJ5

I have a Samsung Note 4 (N910C) on 5.1.1 (COJ5) firmware. I have rooted the phone and put a RunningLite custom rom. There is a custom rom that I really like which runs only on 4.4.4 or 5.0.1 bootloader and not 5.1.1. Is there any way to downgrade the bootloader? I read somewhere that the COJ5 bootloader is locked by Samsung and cannot be downgraded? Is there any way to unlock the bootloader? Pls advice. Thanks!

You're not the first one to ask this. I have an SM-N910F (SnapDragon), and these have no problems downgrading. But looking around XDA, I've seen numerous posts saying the N910C (Exynos) can't be downgraded due to the bootloader. Since I don't own one, I can't really verify, but looking at the sheer number of people reporting the same thing... You know
-RFB

No we cant downgrade
Everytime Odin says falid....

Welcome to the club bro ??
Envoyé de mon X98 Air 3G en utilisant Tapatalk

Me too...

Varun172 said:
I have a Samsung Note 4 (N910C) on 5.1.1 (COJ5) firmware. I have rooted the phone and put a RunningLite custom rom. There is a custom rom that I really like which runs only on 4.4.4 or 5.0.1 bootloader and not 5.1.1. Is there any way to downgrade the bootloader? I read somewhere that the COJ5 bootloader is locked by Samsung and cannot be downgraded? Is there any way to unlock the bootloader? Pls advice. Thanks!
Click to expand...
Click to collapse
the new security patch update of march in note 4 locks the bootloader completely and prevents downgrading while before the update, the bootloader was unlocked and it was easily downgradable, I've seceded in that too..
now, after the update, the bootloader updates to COJ5 and above depending on areas and countries..
so its simple, any bootloader above that means you cant downgrade and any bootloader below that means its downgradable..
heres the solution,
firstly, you'll have to downgrade your bootloader
heres the link http://forum.xda-developers.com/show...37&postcount=3
download any bootloader below COJ5 of your current android version and model, that is 5.1.1 i guess..
exctract it and flast with ODIN in "BL" box..
you'll now have an unlocked bootloader..
than factory reset/ wipe data, wipe cache..
next, flash 5.0.1 via ODIN, factory rest again,
than finally flash 4.4.4 for your model and factory reset once more..
boom!!! you're good to go..
hope this helps
P.S: I'm not responsible for any damage, do it on your own risk..
and spread love

mnanabhai21 said:
the new security patch update of march in note 4 locks the bootloader completely and prevents downgrading while before the update, the bootloader was unlocked and it was easily downgradable, I've seceded in that too..
now, after the update, the bootloader updates to COJ5 and above depending on areas and countries..
so its simple, any bootloader above that means you cant downgrade and any bootloader below that means its downgradable..
heres the solution,
firstly, you'll have to downgrade your bootloader
heres the link http://forum.xda-developers.com/show...37&postcount=3
download any bootloader below COJ5 of your current android version and model, that is 5.1.1 i guess..
exctract it and flast with ODIN in "BL" box..
you'll now have an unlocked bootloader..
than factory reset/ wipe data, wipe cache..
next, flash 5.0.1 via ODIN, factory rest again,
than finally flash 4.4.4 for your model and factory reset once more..
boom!!! you're good to go..
hope this helps
P.S: I'm not responsible for any damage, do it on your own risk..
and spread love
Click to expand...
Click to collapse
the link doesn't work

tareqjordan said:
the link doesn't work
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=58867937&postcount=3

mnanabhai21 said:
http://forum.xda-developers.com/showpost.php?p=58867937&postcount=3
Click to expand...
Click to collapse
hello to be sure you have note 4 with coj5 bootloader and you flashed older bootloader via ODIN with no problems? or just you suggest this method?

my bootloader was not COJ5, it was COK1 with XSG firmware,
i managed to downgrade it to COH4 and downgrade the firmware to 4.4.4 XSG
you can give it a shot..
might work..

mnanabhai21 said:
my bootloader was not COJ5, it was COK1 with XSG firmware,
i managed to downgrade it to COH4 and downgrade the firmware to 4.4.4 XSG
you can give it a shot..
might work..
Click to expand...
Click to collapse
i have tried but failed ODIN error

Hi mates, could anyone help me?
Do I have that famous COJ5?why it doesnt appear like COJ5?
Version of Bootloader: CPC1
PDA: CPC1
CSC: COI1
Baseband: COK1
I would like to go back to kitkat and I don't know how can I do it now..
Thanks, Im apreciated.
Enviado desde mi SM-N910F mediante Tapatalk

BRIPAC17 said:
Hi mates, could anyone help me?
Do I have that famous COJ5?why it doesnt appear like COJ5?
Version of Bootloader: CPC1
PDA: CPC1
CSC: COI1
Baseband: COK1
I would like to go back to kitkat and I don't know how can I do it now..
Thanks, Im apreciated.
Enviado desde mi SM-N910F mediante Tapatalk
Click to expand...
Click to collapse
just wondering, how's the battery life on COK1? When at full charge, how long does the phone say it will last?

imeem said:
just wondering, how's the battery life on COK1? When at full charge, how long does the phone say it will last?
Click to expand...
Click to collapse
I've been trying it since the update left and it's not as good as before, I will tell you how long does the phone say in my next full charge but I don't recommend it..

BRIPAC17 said:
I've been trying it since the update left and it's not as good as before, I will tell you how long does the phone say in my next full charge but I don't recommend it..
Click to expand...
Click to collapse
dam I updated to COK1 before you posted. i'll do some battery impressions too.
As to answer your previous post, I have SM-n910c XSG and I updated to COK1 from COJ5. So you shouldn't have COJ5. what was ur update before that?

imeem said:
dam I updated to COK1 before you posted. i'll do some battery impressions too.
As to answer your previous post, I have SM-n910c XSG and I updated to COK1 from COJ5. So you shouldn't have COJ5. what was ur update before that?
Click to expand...
Click to collapse
I don't remember because I didn't see it before I updated..:crying:
So, now, could you go back if you want to?Have you tried it?I mean, go back to KK or to another version of LL like 5.0.1

mnanabhai21 said:
the new security patch update of march in note 4 locks the bootloader completely and prevents downgrading while before the update, the bootloader was unlocked and it was easily downgradable, I've seceded in that too..
now, after the update, the bootloader updates to COJ5 and above depending on areas and countries..
so its simple, any bootloader above that means you cant downgrade and any bootloader below that means its downgradable..
heres the solution,
firstly, you'll have to downgrade your bootloader
heres the link http://forum.xda-developers.com/show...37&postcount=3
download any bootloader below COJ5 of your current android version and model, that is 5.1.1 i guess..
exctract it and flast with ODIN in "BL" box..
you'll now have an unlocked bootloader..
than factory reset/ wipe data, wipe cache..
next, flash 5.0.1 via ODIN, factory rest again,
than finally flash 4.4.4 for your model and factory reset once more..
boom!!! you're good to go..
hope this helps
P.S: I'm not responsible for any damage, do it on your own risk..
and spread love
Click to expand...
Click to collapse
Are you sure?
amse_010 said:
i have tried but failed ODIN error
Click to expand...
Click to collapse
Yes. Dont work. Failed ODIN
Enviado desde mi SM-N910C mediante Tapatalk

BRIPAC17 said:
I don't remember because I didn't see it before I updated..:crying:
So, now, could you go back if you want to?Have you tried it?I mean, go back to KK or to another version of LL like 5.0.1
Click to expand...
Click to collapse
I personally haven't tried it but i wanted to downgrade for better battery life. I'm not sure if mnanabhai21's method is safe and tested by others. And in general, I'm scared to tweak samsung devices :crying:
5.0.1 for me was terrible. Last time i remember, battery was good(?) but i had constantly had horrible performance in games/benchmarks. The one right b4 COJ5 had good battery life and performance for me.

the CSC is the problem, thats why Odin always says FAILED!!! at the end .. when he wanna flash the Hidden file.
Today i was downgrading from MM to KK.. just take latest LL firmware from your region (csc .. in my case DBT), flash the thing and than if you wanna KK do the same princip, but with same csc

amse_010 said:
i have tried but failed ODIN error
Click to expand...
Click to collapse
I Found a way to unlock the bootloader on coj5 through samsung kies
1: open samsung kies 3 and choose the 4th option in the up left side (tools) an then choose the 2nd option (firmware upgrade and iniciation)
2: in the new window introduce the phone model (SM-N910C/F/A...etc) click ok, now introduce the S/N: (which you can find in the battery´s place and for do that you´ll have to remove the battery from your phone and search the S/N on it ) once you have done introduce it such as it is, click ok, follow the steps put your phone into downloading mode and wait until it finishes ... and thats all enjoy :silly:

Downgrade from 5.0 to 4.4.2 not working?

Hello guys,
First sry for my bad englisch, im from germany and my englisch isnt that good
im trying to downgrade my Note 3 (running on N9005XXSGBPL6/DBT/STOCK ANDROID 5.0) to Stock Android 4.4.2.
I have tryed already like any available stock 4.4.2 roms, but Either my device does not start and stucks at the samsung logo and ends up in a boot loop, or it freezes after the first few seconds after the boot.
I dont know what to do, i have tryed to wipe the cache and the data but it still doesnt work.
I also tryed different USB ports and different versions of odin.
I really want to have android 4.4.2 on my note 3 because it runs much better than 5.0, has less errors and uses less ram.
Maybe someone knows a solution for my problem.

I'm not sure about your note 3 but some Samsung phones do not allow downgrading the bootloader from 5.0 to 4.4.2.
Were you able to successfully flash a stock 4.4.2 ROM with Odin?

audit13 said:
I'm not sure about your note 3 but some Samsung phones do not allow downgrading the bootloader from 5.0 to 4.4.2.
Were you able to successfully flash a stock 4.4.2 ROM with Odin?
Click to expand...
Click to collapse
Yes, i sucessfully flashed 4.4.2 but after i logged into my google account it freezes and i was stuck in a bootloop

Did you confirm that the bootloader and modem are also at 4.4.2?

audit13 said:
Did you confirm that the bootloader and modem are also at 4.4.2?
Click to expand...
Click to collapse
The app phone info says: Bootloader-Version: N9005XXSGBPL6
I think thats the 5.0 bootloader?

See Bootloader Baseband thread in General section .

Lionkilian said:
The app phone info says: Bootloader-Version: N9005XXSGBPL6
I think thats the 5.0 bootloader?
Click to expand...
Click to collapse
Yes, it looks like the phone is still on a 5.0 bootloader. If the ROM and modem are on 4.4.2, this is probably why things are not working well.

audit13 said:
Yes, it looks like the phone is still on a 5.0 bootloader. If the ROM and modem are on 4.4.2, this is probably why things are not working well.
Click to expand...
Click to collapse
I flashed the 4.4.2 rom again and i was able to finish the setup part.
But now its frozen again....

What is the model # in download mode?

I downgraded from stock 5.0 to Omega 4.4.2 no problem. Nothing special, not even a clean install. Everything working great for 2 years now.