N910t3 downgrade from 6.0.1 to 5.1.1 ? - T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting

Hello everyone i just bought n910t3 and its running default 6.0.1 marshmallow and i am trying to downgrade to 5.1.1 but odin fails everytime.
Knox counter is 0×0
But something weird is happning when i make factory data reset in stock recovery shows me this error ( unable to mount preload no such file or directory ) phone is running just fine but this error is really bugging me.
Any ideas ?
UPDATE
PROBLEM SOLVED=I SOLD THE DAMN PHONE

Anyone ?

Google account removed from phone or oem lock switch hit?

obliviousmnd said:
Google account removed from phone or oem lock switch hit?
Click to expand...
Click to collapse
I did check oem unlock is on but still fails in odin
And what about that error while wipe data factory reset ( unable to mount preload thing any ideas ?
And google account i didn't remove before flashing but i did factory reset before flashing 5.1.1 does that matter ?
I had n910t couple of months ago and i was flashing downgrade without remove Google account.

Trex888 said:
I did check oem unlock is on but still fails in odin
And what about that error while wipe data factory reset ( unable to mount preload thing any ideas ?
Click to expand...
Click to collapse
Is FRP lock showing ON while in download mode?

obliviousmnd said:
Is FRP lock showing ON while in download mode?
Click to expand...
Click to collapse
Yes it's showing frp lock on in download mode
What am i suppose to do here?

Trex888 said:
Yes it's showing frp lock on in download mode
What am i suppose to do here?
Click to expand...
Click to collapse
Oh my bad, you're trying to downgrade. Downgrade not possible for t3. Flash stock 6.0.1, problem resolved.

I am happy with marshmallow but when i was running lollipop the ( unable to mount preload error was not there )
I did flash 3 times 6.0.1 firmware but the error still came up in red letters when i do wipe data factory reset.
Any solution to fix that ?

I'm trying to downgrade my n910t3 phone as OP too. Currently I'm on N910T3UVU3EPJ2, never rooted, never flashed with custom ROM, Knox counter 0x0. Is it true that It's not possible at all to downgrade it?
If so, is it mean that you can still flash the older 6.0.1 MM stock ROM or it is not possible as well?

jackgan said:
I'm trying to downgrade my n910t3 phone as OP too. Currently I'm on N910T3UVU3EPJ2, never rooted, never flashed with custom ROM, Knox counter 0x0. Is it true that It's not possible at all to downgrade it?
If so, is it mean that you can still flash the older 6.0.1 MM stock ROM or it is not possible as well?
Click to expand...
Click to collapse
No way to downgrade t3 i tried all older firmwares.
i sold the n910t3 and i bought n910t now i can easily downgrade i am on 5.1.1

Trex888 said:
No way to downgrade t3 i tried all older firmwares.
i sold the n910t3 and i bought n910t now i can easily downgrade i am on 5.1.1
Click to expand...
Click to collapse
How did you downgrade n910t from 6.0.1 to 5.1.1
Thanks

jedisurfer said:
How did you downgrade n910t from 6.0.1 to 5.1.1
Thanks
Click to expand...
Click to collapse
I didn't Downgrade not possible on N910T3 only N910T is possible just flash stock firmware "OK1" 5.1.1 through odin

Trex888 said:
I didn't Downgrade not possible on N910T3 only N910T is possible just flash stock firmware "OK1" 5.1.1 through odin
Click to expand...
Click to collapse
you can do it but its a long shot using Z3x box

Related

Reactivation-lock!

Can somebody please help me????? I am stuck with a reactivation lock and none of the bypass methods work. It has 5.1.1 and I've tried downgrading it to everything below 5.1.1, is there anyone that can help me fix this
did you flash the dok2 firmware with odin? If you haven't tried that yet give it a shot. Here's a link to the files http://forum.xda-developers.com/note-4-tmobile/development/mirror-stock-tw-t3260858
Pjs187 said:
did you flash the dok2 firmware with odin? If you haven't tried that yet give it a shot. Here's a link to the files http://forum.xda-developers.com/note-4-tmobile/development/mirror-stock-tw-t3260858
Click to expand...
Click to collapse
Did that, it's also the one I have
If you odin the dok2 firmware it should have reset everything to a factory state, you can't downgrade your bootloader as far as I know.
Easy To Remove
isaacClark234 said:
Can somebody please help me????? I am stuck with a reactivation lock and none of the bypass methods work. It has 5.1.1 and I've tried downgrading it to everything below 5.1.1, is there anyone that can help me fix this
Click to expand...
Click to collapse
the reactivation lock is easy to remove from the note 4. I went to the IMEI Gurus webpage and got mines removed. or just type in reactivation lock on ebay and you will see that most people will remove it for twenty bucks ! goodluck.

Installing android 6.0.1 on nexus 6 (problem)

I am currently on stock android M rooted and unlocked bootloader
Want to upgrade to 6.0.1 anyone please guide me how to do it?
If i do it will the bootlader lock again?
Will the root access go away
someone please guide me with proper steps
advance thanks
MD0038 said:
I am currently on stock android M rooted and unlocked bootloader
Want to upgrade to 6.0.1 anyone please guide me how to do it?
If i do it will the bootlader lock again?
Will the root access go away
someone please guide me with proper steps
advance thanks
Click to expand...
Click to collapse
just flash the latest 6.0.1 factory image. yes, you will lose root and will have to reroot(flash twrp then supersu which takes a few minutes). bootloader will only relock if you relock yourself, manually. if by now you dont know the proper steps, and yet you are modifying your nexus 6, then there is no help for you, sorry.
simms22 said:
just flash the latest 6.0.1 factory image. yes, you will lose root and will have to reroot(flash twrp then supersu which takes a few minutes). bootloader will only relock if you relock yourself, manually. if by now you dont know the proper steps, and yet you are modifying your nexus 6, then there is no help for you, sorry.
Click to expand...
Click to collapse
directly flash 6.0.1 over rooted M????
should i not get back to 6.0.0 make the phone stock and then flash 6.0.1 over it?
or thats not necessary?
btw do i lose data if i directly flash over present one?
MD0038 said:
directly flash 6.0.1 over rooted M????
should i not get back to 6.0.0 make the phone stock and then flash 6.0.1 over it?
or thats not necessary?
btw do i lose data if i directly flash over present one?
Click to expand...
Click to collapse
flashing a factody image will wipe out your partitions first, so affectively, youre flaahing on top of an "empty" device. you will lose data, but wont if you only flash the system.img.
MD0038 said:
I am currently on stock android M rooted and unlocked bootloader
Want to upgrade to 6.0.1 anyone please guide me how to do it?
If i do it will the bootlader lock again?
Will the root access go away
someone please guide me with proper steps
advance thanks
Click to expand...
Click to collapse
Sorry to butt in but only flashing userdata.img in fastboot or performing a manual data factory reset (in recovery or settings) will wipe all data on your device.
gee2012 said:
Sorry to butt in but only flashing userdata.img in fastboot or performing a manual data factory reset (in recovery or settings) will wipe all data on your device.
Click to expand...
Click to collapse
Am thinking of taking backup and then flashing 6.0.1 and re rooting again
MD0038 said:
Am thinking of taking backup and then flashing 6.0.1 and re rooting again
Click to expand...
Click to collapse
Sure, but only backup userdata (apps) and no system data.

Has anyone confirmed downgrade from MM?

As the thread states....has anyone tried to flash stock DOK2 firmware from the new MM update? I have searched and asked many questions but have not gotten a solid answer. And if no one knows or no one has tried yet, would someone who had already taken the update be willing to try flashing stock DOK2 firmware? For developmental purposes. Thanks in advance. ?
Anyone got root for Marshmallow?
viewsfromthepi said:
Anyone got root for Marshmallow?
Click to expand...
Click to collapse
Root works perfectly fine. Use SuperSu Systemless root. I believe the version number is 2.74-2. It's the latest beta if I'm not mistaken.
First use ODIN to get TWRP onto the device and then flash the supersu zip like usual.
I was thinking of just using flashfire to flash BL and modem only then install the rom..that way it doesnt overwrite recovery... bad idea ?
noob4598 said:
I was thinking of just using flashfire to flash BL and modem only then install the rom..that way it doesnt overwrite recovery... bad idea ?
Click to expand...
Click to collapse
Yes, bad idea. No shortcuts on base updates.
Sent from my SM-N910T using XDA-Developers mobile app
noob4598 said:
As the thread states....has anyone tried to flash stock DOK2 firmware from the new MM update? I have searched and asked many questions but have not gotten a solid answer. And if no one knows or no one has tried yet, would someone who had already taken the update be willing to try flashing stock DOK2 firmware? For developmental purposes. Thanks in advance. ?
Click to expand...
Click to collapse
I was able to downgrade to DOK2 but I only flashed the bootloader & modem file not the entire firmware
If you flashed BL then we are good. I wonder if the MM bootloader is like n910G.....they couldn't go from 5.1.1 to 4.4.4 but when they got 6.0.1 they were able to got back 2 steps to 4.4.4.like a magical BL unlock ha
xoxo_xdagirl91 said:
I was able to downgrade to DOK2 but I only flashed the bootloader & modem file not the entire firmware
Click to expand...
Click to collapse
What files did you use? I tried flashing the entire dok2 firmware through Odin and kept getting stuck in a bootloop. If I could just flash those 2 files that would be great.
Sent from my SM-N910T using XDA-Developers mobile app
nymikey said:
What files did you use? I tried flashing the entire dok2 firmware through Odin and kept getting stuck in a bootloop. If I could just flash those 2 files that would be great.
Sent from my SM-N910T using XDA-Developers mobile app
Click to expand...
Click to collapse
DOK2 Bootloader: https://www.androidfilehost.com/?fid=24269982087008410
DOK2 Modem: https://www.androidfilehost.com/?fid=24269982087008409
I used odin 3.11.1: http://dl.sammobile.com/Odin3-v3.11.1.zip
put the bootloader in the BL section & the modem in the CP section of odin
xoxo_xdagirl91 said:
DOK2 Bootloader: https://www.androidfilehost.com/?fid=24269982087008410
DOK2 Modem: https://www.androidfilehost.com/?fid=24269982087008409
I used odin 3.11.1: http://dl.sammobile.com/Odin3-v3.11.1.zip
put the bootloader in the BL section & the modem in the CP section of odin
Click to expand...
Click to collapse
Thanks, I'm gonna give this a try.
Sent from my SM-N910T using XDA-Developers mobile app
I have downgraded from a full PE3 to OK2. Worked fine.
Awesome...that makes me feel safer...I might try to odin nk4 later just for ships and giggles haha
does anyone know if you can downgrade from MM PE3 to KK ANK4? I know that you can't go from DOK2 to ANK4. Love firekat too much
noob4598 said:
If you flashed BL then we are good. I wonder if the MM bootloader is like n910G.....they couldn't go from 5.1.1 to 4.4.4 but when they got 6.0.1 they were able to got back 2 steps to 4.4.4.like a magical BL unlock ha
Click to expand...
Click to collapse
Someone needs to try this ASAP.
Karina Kapri said:
Someone needs to try this ASAP.
Click to expand...
Click to collapse
I had a T-mobile Note 4 (N910T) on 5.0.1 , downgraded to KitKat 4.4.4, when Lolipop 5.1.1 came out I upgraded. rooted, and then flashed custom rom Tekxodus .. phone used to restart randomly .. later discovered that once you upgrade OK2 you get locked and no longer can downgrade to KK.
later on, the phone started to give mmc error and then just died.
Lesson Learned, stay on 5.0.1 or downgrade to 4.4.4 and stay there.
I still wonder if Android 6.0.1 Locks down the downgrade process to 4.4.4. I doubt it will allow it.
DeeXii said:
I have downgraded from a full PE3 to OK2. Worked fine.
Click to expand...
Click to collapse
Ok. You just downgrade, but I have a question.
After you flashed BL and CS, you still have to flash the firmware, right? So, I have to have the firmware OK2 too, right?
Chrisayami said:
Ok. You just downgrade, but I have a question.
After you flashed BL and CS, you still have to flash the firmware, right? So, I have to have the firmware OK2 too, right?
Click to expand...
Click to collapse
im also waiting for this reply hehehe...
SeerePetrova said:
im also waiting for this reply hehehe...
Click to expand...
Click to collapse
Yea if you want everything to be OK2 but its not necessary....if you are gonna use twrp, u dont need to odin recovery....and if you are gonna use a custom rom instead of stock then you dont need to odin system...so basically anyone with twrp and a custom OS is only using BL and Modem
But i always just flash it all just to be thorough....
xoxo_xdagirl91 said:
DOK2 Bootloader: https://www.androidfilehost.com/?fid=24269982087008410
DOK2 Modem: https://www.androidfilehost.com/?fid=24269982087008409
I used odin 3.11.1: http://dl.sammobile.com/Odin3-v3.11.1.zip
put the bootloader in the BL section & the modem in the CP section of odin
Click to expand...
Click to collapse
Can i flash that with flashhire app? (Without odin) And without loose my twrp?
Thanks!

Stock G900a downgrade from Marshmallow to Lollipop

Searching via cell isn't great for me at the moment. I've found a few threads with lollipop files to use in Odin. But I haven't read anything that says it's simple to flash them and downgrade properly from Marshmallow to Lollipop. Is there a tutorial/file thread already on here that I am missing via search? Is this something I can do without rooting?
Da hell is that chipmunk woman
Sammobile doesn't have the stock 5.1 firmware.. is that an omen against downgrading?
Most of the posts ive read are indicating Marshmallow is not able to be downgraded, bootloader locked.. looks like a dead end
It's a different boot loader, will not be able to downgrade. There is no root option at this time as well.
johnkirchner said:
It's a different boot loader, will not be able to downgrade. There is no root option at this time as well.
Click to expand...
Click to collapse
sorry, but i disagree. i just flashed from 6.0.1 to 5.1.1 using odin and firmware found here on XDA. I have no problems with phone so far.
At the time of my post months ago, this was not possible. It is very possible now, I have also done it.
gooch1006 said:
sorry, but i disagree. i just flashed from 6.0.1 to 5.1.1 using odin and firmware found here on XDA. I have no problems with phone so far.
Click to expand...
Click to collapse
This is for the AT&T model, I haven't been able to crack into mine. I have battery issues since marshmallow and want to go back to 5.1.1 as well... where did you get the files, and what process did you use?
Downgrade instructions can be found here:
http://forum.xda-developers.com/showthread.php?p=67323522
johnkirchner said:
Downgrade instructions can be found here:
http://forum.xda-developers.com/showthread.php?p=67323522
Click to expand...
Click to collapse
Thanks for the link, i had searched without luck on my own.
https://forum.xda-developers.com/att-galaxy-s5/general/guide-merry-christmas-heres-t3516196
following this guide for rolling back to LP, work for me downgrade from MM and getting root on LP.
Mine didn't... version DPH4, october 1, 2016 security patch, odin gave me an error something like level 4 > 3 and didn't start the reflash process. I was able to reflash the same 6.0.1 and its not the same as what was on there, so maybe the ota updates had a problem? I'm still locked out of downgrading.
Mine also from DPH4 oct 1, 2016. Having issue with lte, i cant receive call but i can make call. So im rollback to COI5 and follow the instruction from page 2. Get odin 3.11.1 to flash BL,AP,etc. Have you try with other usb cable?
kecel said:
Mine also from DPH4 oct 1, 2016. Having issue with lte, i cant receive call but i can make call. So im rollback to COI5 and follow the instruction from page 2. Get odin 3.11.1 to flash BL,AP,etc. Have you try with other usb cable?
Click to expand...
Click to collapse
i had that issue at one point, i just flashed the CSC and CP again and it worked.. Idk if it's that simple for you guys tho..
g900a downgrade from 6.0.1 to 5.1.1
djs2571 said:
This is for the AT&T model, I haven't been able to crack into mine. I have battery issues since marshmallow and want to go back to 5.1.1 as well... where did you get the files, and what process did you use?
Click to expand...
Click to collapse
i also have the at&t model, but used some info in this post: https://forum.xda-developers.com/att-galaxy-s5/general/guide-merry-christmas-heres-t3516196
i used odin to flash full OI5 firmware, minus the bootloader file. Only use the AP, CP, and CSC files. the bootloader is the same. and really, i had already flashed the PA2 build earlier that day i remember now. would probably do that first. flashing the PA2, i used all four files, BL, AP, CP, and CSC . they both flashed the first time, if they dont then try a different cable first. usually that is my issue.
so , i flashed from 6.0.1 down to 5.1.1 pa2, then down to oi5. still have no problems other than getting root..... im focusing on bootloader now, i have unlocked them on htc's before, but havent tried any other phone yet. the work continues tonight.

Downgrade to kitkat with TWRP from Marshmallow

Hi,
I have Note 4 N-910T with Kitkat baseband version N910TUVU1ANK4 and the phone is fully unlocked i.e. I am using it outside USA and on other network sim not T-Mobile
I want to update it to
EPJ2 6.0.1 Marshmallow BL and Modem (as of October 2016, Latest)
https://drive.google.com/open?id=0B6...WRvVmJWTzItS0E
My question is
1. Should I first flash TWRP on phone and take back up and then flash the Marshmallow firmware ?
2. Will my phone lock to T-mobile network after update ? What If I flash some custom Marshmallow ROM, will it still lock ?
3. If it is locked or something bad happens, can I safely restore the TWRP back up I created ?
Please help me
Thanks
Aiden
mr.ab18 said:
Hi,
I have Note 4 N-910T with Kitkat baseband version N910TUVU1ANK4 and the phone is fully unlocked i.e. I am using it outside USA and on other network sim not T-Mobile
I want to update it to
EPJ2 6.0.1 Marshmallow BL and Modem (as of October 2016, Latest)
https://drive.google.com/open?id=0B6...WRvVmJWTzItS0E
My question is
1. Should I first flash TWRP on phone and take back up and then flash the Marshmallow firmware ?
2. Will my phone lock to T-mobile network after update ? What If I flash some custom Marshmallow ROM, will it still lock ?
3. If it is locked or something bad happens, can I safely restore the TWRP back up I created ?
Please help me
Thanks
Aiden
Click to expand...
Click to collapse
You cant flash via twrp
First you have to flash 6.0.1 full stock firmware via odin to get marshmallow bootloader/baseband.
And dont worry it will not sim lock the device
After that you can flash twrp and flash any 6.0.1 custom rom
Keep in mind once you flash lollipop or marshmallow you cannot go back to kitkat. Your bootloader will be locked and impossible to run kitkat again.
And also your twrp backup of kitkat will no longer work.
I suggest you stick with kitkat cuz it's best for note 4 till date.many users are pulling their hair to go back but they can't. Marshmallow is good in performance but kitkat is best in battery life and speed.
can i down grade from marshmallow to lollipop im on epe3
cwbcwb said:
can i down grade from marshmallow to lollipop im on epe3
Click to expand...
Click to collapse
Yep
sloanster said:
Yep
Click to expand...
Click to collapse
But I was able to downgrade my W8 N4 from MM 6.0.1 to stock Kitkat 4.4.4 by Odin 3.09 without any problems, It doesn't lock the BL, I am not sure for other models but at-least mine BL was not locked.
masood8 said:
But I was able to downgrade my W8 N4 from MM 6.0.1 to stock Kitkat 4.4.4 by Odin 3.09 without any problems, It doesn't lock the BL, I am not sure for other models but at-least mine BL was not locked.
Click to expand...
Click to collapse
What exactly did you do? I'm looking for a way to downgrade to kk. I have the SM-N910T3.
[email protected] said:
what exactly did you do? I'm looking for a way to downgrade to kk. I have the sm-n910t3.
Click to expand...
Click to collapse
n910t3 never had kitkat actually it comes out of the box with lollipop 5.1.1 .

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