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Stock/official rom rooted issues

Hey friends.I bought the phone a week ago and after a few days of checking that is working properly i rooted it in stock rom for getting rid of the ad's ,full phone acces e.t.c.
Everything is working fine exept an issue.
the first 1) is the fingerprint scanner.Now i know that is trigeering knox and in official rom isnt working anymore but in superman rom is working fine even is the knox is triggerd.
Is there any way to make it work in official?
Seconnd 2) does smart view has to do anything with knox?i can use all the other funtions of smat view exept screen mirroring.it gives me a popup saynig ''smart view connection failed.Error occured''
does the root have something to do?
and a final question.if i flash back the offial version and unroot the phone (the knox will still be triggered) will receive the oficcial updates?
EDIT*
for 1)The fingerprint scaner works properly in a rooted phone .Sorry for any misleading info .Just to know i had installed an ''tap to lock'' aplication .After delete the scaner works perfectly.Sorry again.

which chainfire version did you use? with 2.68 I have no issues at all

curioct said:
which chainfire version did you use? with 2.68 I have no issues at all
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I used the same version as u but it dint take it on the first atempt.
I started the flashing in downloading mode and after a few seconds stops.The instalation bar was 1/3 full.
I let the phone to continue but after 5minuts nothing happend.so i restart again in download mode and instead of the clasic download mode screen it gave me a big blue screen with a triangle in the midle
and it was writting to use smart switch to contineu.
In this screen you still can flash the cf ayto root.So i flash it again and it continiue from where it left before.
Right now i have no issues from rooting.The smart view appears to be samsung error because i call customer support and they told me that the first update is including several fix and a fix for the smart view.
I root the phone immediately after the format data i make so it didnt take the first update tha cames when u first open the phone.

HELP theres somthing wring with my phone

i have a samsung galaxy note 4 (SM-N910C) running android 6.0.1 and its been with me for almost 3 years. but recently i rooted it multiple times using odin and chainfire cf autoroot the first time i rooted my phone succesfully then i figured that i wasnt able to use snapchat so i completely unrooted. then i realised that xposed was what caused snapchat to stop working not the actual rooting. so i rooted my device using the same method and it worked succesfully. but this time i THINK i messed around with the build prop file but at that time i didnt know. so a couple of days later i completely reset my phone( just because i got a new work phone but NOT because i thought somthing was wrong with the build prop file) so my device wasnt rooted.then when i installed snapchat again and it didnt work.then i went to see if there were any software updates and it said the i had an unothorised OS.then i went to my device status and it said costom instead of original which was weird because i reset it. so i starting think abought what could have gone wrong and i thought about the build prop. i tried everything to get the device status to original like triangle away (i had to root it to install triangle away tho) but it didnt change the device status but snapchat worked thank god. however private mode didnt work so i tried to install samsung USB drivers and connect it to my phone usibg odin but things got even more copmlicated. i dont know what to do
any ideas?

flash stock rom via odin ?

Note 4 Dreadful unusable performance!

Hi Guys,
Hopefully this is in the right section
I have a Note 4 SM-N910G and its just turned absolutely useless since I factory flashed it. I have rooted it before and bricked it and un bricked it before so have some experience with it. I recently wiped my phone and did a firmware restore using Samsung Kies and since I did the phone is absolutely useless. It started out fine for an hour or two and now it lags by like a minute with any action, even trying to bring up the keyboard when typing. It will reset itself, lock itself, crash, just un useable. I've tried reflashing it again stock a couple times and still the same everytime. It went from perfectly fine to dreadful with the original mentioned restore. I did just recently get an error code of "sbl1 partition doesn't exist" in Boot recovery mode.
Does anyone know if this is fixable and not a hardware issue?
Should I try and just root it again and flash a non-oem rom? (I havent had the time to do it recently)
many thanks,
Tekkado

Hi Guys,
Also I should add that when I was rooted the phone was fine but when i went to unroot through super user the phone was still functioning as though rooted and I couldnt download software updates because my device was "modified".
So thats when i just flashed stock firmware and again now flashing through odin aswell it proceeds fine then the device will say installing updates and then give a no command error or seandroid not enforced. Everytime is basically a different message.
How can I just wipe everything and get back to stock?
Thanks

So to add to this is there any relationship between the firmware running and the bootloader? I just realised that before i tried to flash stock firmware i was rooted and didnt un root via superuser because in the past that did jack all.
I flashed dr. ketan rom this morning and the phone was operating as normal very snappy but as soon as i downloaded a new app from the play store (reddit and chrome) again it turned to absolute crap.
Is there a disconnect here that i missing that can be fixed?
Thanks

Need help with Samsung Galaxy Amp 2

Okay this is my very first post. Let me start off by saying this is like my second Android phone. Previously I had the Galaxy J1 thru verizon but never had any issues. All my other phones have been all iPhones and I don't know anything about Android rooting/flashing etc. I've switched to Android recently after having practically every iPhone since the original. My problem is that I rooted the Amp 2 following the instructions from this thread https://forum.xda-developers.com/general/help/galaxy-2-rootable-t3384285/page4. It worked, the main reason why I decided to root the phone was to gain more system memory which I'm disqusted that Android takes up a lot of it's OS or w.e in its system memory and to bypass Cricket's stupid tethering block on the $60 plan without the mobile hotspot. Once I flashed the file provided via odin and rooted with kingroot, I would get a security notice that unauthorized changes have been made and that I would need to reboot my device, that was fine with me but I did so only to find that the message still appears every fifteen minutes so I disabled it with the package disable pro that I bought on the google play store. The problem I'm having is that I can't encrypt my phone and
SD card. Everytime I try to do so it wont work and I can't even get the SD card to mount properly so I unrooted the phone with kingroot and restored my phone back to factory. Still the same issue.... For whatever reason, it wont let me encrypt the phone again and I cannot get back whatever pictures from my SD card I had and a backup of all my contacts I imported from my J1. All I wanted was to try a custom recovery and ROM but I want to make the phone stock again because I been having so much issues. Like I've stated before I don't know anything on Android rooting and flashing, only iPhone jailbreaks. If somebody can help me out that will be great. I understand that the phone was given to me for free by porting over my number and that I can easily get another Android for cheap but all I want to do is get some assistance.
I downloaded the stock ROM file but I can't seem to flash it in Odin or using the recovery mode if that makes sense to anybody reading this thread. I've tried clicking the AP box to select my file but its a zip file and I can't get it to work.

Helppppp
Bump need help recovering back to a stock ROM. I must of screwed something up. I've downloaded the stock Rom over the internet but I can't seem to get it to work by Odin. CAN SOMEBODY HELP CUZ I CAN'T EVEN DOWNLOAD ANY APPS OFF GOOGLE PLAY!! PLZ HELPPPP

sm-g920t1

ok i have a sm-g920t1 (s6) i tried to root it with cf auto root but some thing went wrong.it was stuck in logo was able to get into download only,i took it to several people including Samsung and all tell me it needs a new mother board ,the phone worked perfectly before,so i can eliminate that .i finally got a response with firmware G920T1TMB5EQC2_TMB,but its still stuck... in Odin i tried AP first then put the file in bl, same result,it will download but cant get into recovery..the current binary is Samsung official,but system status remains custom, any ideas????since it says custom i think i will try to force xtrestolite into it maybe it will let me put twrp after ,other than that im just out of ideas,,to me it sounds as if oem was off when i rooted it ,and to be honest i dont remember if i turned it on or not ,ive been at this for over a year!!!