- Intro
- Done and searched so far
- My Questions. (Jump to the end unless you think I haven't search prior )
- Bounty
INTRO
Hey guys. I'm french Canadian (please understand my bad written )
and thanks to the phone I choosed (s5 active g870w telus)
I'm becoming pretty much bilingual I've checked all over
around The Web and over this forum. And can't find an accurate
answer . I know I picked the wrong phone for rooting but
as a construction worker it was a good compromise.
DONE AND SEARCHED
My Samsung Galaxy s5 Active g870w from Telus
is still on 4.4.2 since there is no and there will not be
any update for a while.
I managed to used the g900w8 version of
Chain fire auto root method using Odin 3.09
to get roots.
I have also succès to flash Unity 2.0.1 rom.
So far I figured that my version can count as
the Canadian version of the s5 small g900w8. (I may be wrong)
I found a stock Firmware (that accualy make my
lies in russian ) Wich I used a lot lately due to all
my soft brick.
My goal is to be able to upgrade to a nice custom rom
on lollipop. I was hoping Fusion. And as for the recovery
TWRP would be my choice if it was possible.
Now I am stuck trying to install TWRP. I have followed
multiple guide. I have tried to install from TWRP manager
the version 2.8.6.0 klte. I have tried 3 times and after the app
installation I tried to reboot to recovery using Quick boot,
i always end up in Odin mode.
I then tried to install using Odin flashing the same version
Downloaded from TWRP.me site. Then it let me load into
my stock version. Then if I try to reboot in recovery
it still stock.
I even tried to use safestrap both version at&t and Verizon
and both soft bricked me.
I have read or scan about every thread and none talk about
S5 a g870w. Beside the att version Wich are locked.
QUESTIONS
My Questions and I really beg for answers even if
You have only 1 answer.
1- Is my phone g870w compatible g900w8?
2-is it compatible to any other versions?
3-when looking should I only look for Canadian version or I can also
use either g870 from at&t,Verizon or international. Or I look for
International g900. Since I guess my bootloader is unlocked .
4- Since only at&t and Verizon are supposed to be lock I guess
I can't use safestrap... so are TWRP and CWM the only options?
5- Can someone help me troubleshoot my installations. ?
6- After I install my recovery a a g870w on kitkat 4.4.2
Should I be able to flash lollipop base custom rom?
7- Is it possible that there is no option for me beside
Unity and stock rom.
BOUNTY
It might not be much but I offer a 20$ minimum bounty for who ever
take me outta this non ending bulls*"t.
Thanks guys. And please I swear I have search and read a lot
just Google my model number and you'll always end up on me
Searching and I seems to be the only one g870w talking about
recovery or custom rom. All I found is how to root...
Jon
1- Is my phone g870w compatible g900w8?
No, it is different flashing anything that isn't designed for your exact model number ( even the AT&T ones which are one letter different) won't work.
2-is it compatible to any other versions?
No, only firmwares for your exact phone will work without someone modifying something specific for you.
3-when looking should I only look for Canadian version or I can also
use either g870 from at&t,Verizon or international. Or I look for
International g900. Since I guess my bootloader is unlocked .
Flashing any other model number but your own risks bootloop/bricking as they although look similar can have different firmware partitions amongst other things.
4- Since only at&t and Verizon are supposed to be lock I guess
I can't use safestrap... so are TWRP and CWM the only options?
If someone can have a look at TWRP is possible that they can make a version work for you: ideally I would say with it being so difficult as so few have your model I would go to stock: root and use xposed, and leave the rest.
5- Can someone help me troubleshoot my installations. ?
Sure, happy to help but don't know how much can help when you are trying firmwares for different versions.
6- After I install my recovery a a g870w on kitkat 4.4.2
Should I be able to flash lollipop base custom rom?
Unless someone has made I've for your model type I doubt it.
7- Is it possible that there is no option for me beside
Unity and stock rom.
Yeah unfortunately this is quite likely.
thanks for taking the time.
Now I'll go private with you for personal things.
but before maybe few extra questions will help the very few others in
the same painful situation.
about compatibility you answered no.
What made me search so bad is that I've seen
other members(g870a) claiming they we're using
g900 roms I'll search for a link.
-Does it mean even tho its risky or
it means that American version have more luck ?
-am I still able to use a recovery like safestrap?
-can I hang myself?
- and if I'd like to have TWRP and a know custom rom
would it be a lot of works for Des.
Is it "askable" are some working for money?
I hate stuck to death I miss my note 3 like crazy. .. damn
Related
New to the I337. AT&T with NC1. Android 4.4.2. Stock ROM with the 3.4.0-1125940 kernel. Rooted, SE Linux permissive, Safestrap installed. Compared to other phones I have owned, rooted and installed custom ROMS for this one is way more complex.
Today I tried to Safestrap flash a couple of different ROM's- the Goole Play edition (jflte GPE) and the Lollipop 5.1 ROM 2015061jflte both times using Safestrap. Neither worked. In the case of the Google Play edition, it wanted to install a new kernel as well, I tried with the recommended kernel on the install GUI (wow an install GUI on Android). Both times stuck in a boot loop. I ended up using for the second time, the excellent information here
http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
to get back to stock NC1 (thanks again guut13 for the excellent guide and links to resources) and restored via Safestrap the present stock configuration.
My questions are as follows (I am posting this after a LOT of reading here)
1)Can I use LokiDoki ? I understand it resolves problems with the locked boot loader where one can flash pretty much any S4 ROM on the I337.Is this true?
2) I wanted to give the two ROMS I mentioned today a try. Neither worked although I followed the instructions carefully (wipe, install and reboot). I also would like to try the Phoenix ROM. Is it compatible with Safestrap? Are the two I tried today compatible with Safestrap?
3) I am on 4.4.2. I understand that 4.4.4 is out there as well as 5 but when I check either via Kies or OTA I am told this is the latest firmware for my phone. Any way to update this?
As I said earlier this phone is a lot more complex from a modding standpoint than any other I have experience with. I am unclear on which ROM's will work with the NC1. Before I knew about Safestrap and the boot loader problem I tried installing TWERP and ended up having to rebuild things with guut13's excellent thread.
With NC1 am I stuck on the stock ROM ? Can kernels be updated on NC1 using LokiDoki?
Any light or advice to be shed on my confusion wold be very much appreciated.
Expat
Look at this other excellent thread started I by guut13,î answers all.
http://forum.xda-developers.com/showthread.php?t=2616221
Loki doki is not an option for you, and you can only install tw based roms.
Cats_PJ's
Thanks for the link. Have seen this thread. So I am on 4.4.2. So can I flash a 5.x ROM on the phone provided its TW --or does the phone have to be updated via OTH or another method to 5.x first? Or am I stuck on the ROMS specifically available on 4.4.2?
Thanks again very much for your interest and the link. Wish I had shopped more carefully and bought a non AT&T phone, one of the 5xxx models but I couldn't find anything other than the AT&T ones here in Ecuador.
Expat
http://forum.xda-developers.com/gal...-to-update-to-i337oc3-5-0-1-keeproot-t3075814
That will get you to 5.0.1. You can flash the lollipop roms after that.
I wish I had known more before I bought my phone too. Live and learn, I'm about do for an upgrade though. Good luck.
Cats_PJs said:
http://forum.xda-developers.com/gal...-to-update-to-i337oc3-5-0-1-keeproot-t3075814
That will get you to 5.0.1. You can flash the lollipop roms after that.
I wish I had known more before I bought my phone too. Live and learn, I'm about do for an upgrade though. Good luck.
Click to expand...
Click to collapse
Again many kind thanks for the help. This is the most complicated chain of BS to go through just to update a ROM thanks to the locked boot loader I have ever seen..... however you and others here deserve a lot of credit for finding workarounds...... the phone has been made needlessly complex with the BL and efforts by Google and AT&T to "protect" their turf and monetise the user. I would upgrade today were I not in Ecuador where everything costs double what it does in the US. The phone thief crop here is thick- this is the fourth phone in 2 years although the Galaxy Grand Prime I bought after the last robbery I still have. Broke the screen on that one and it was repaired improperly, I get a blank white screen on startup so can't get into recovery so its worthless to me for what I want it for..... so I have the S4 AT&T. Ah well.
Many thanks and enough of my *****ing.
Expat
Hello.
Ever since I bought a Galaxy Nexus and found XDA, my life changed. Without noticing I got infected a virus: addiction to Android.
My Nexus got outdated quickly and now is pretty done and I need a new toy. 3,5 years later I finally got some spare money to buy a new phone. Since here in Portugal the minimum wage is around 500€ and top flagship phones cost around 700€ (and there's no affordable contract to get something cheaper and still nice), I had to wait until now to get a used Note 3 for 300€.
I love the phone's design and above all the specs. There's no other phone with 3GB RAM and Snap 800 for this price and I always liked big sized phones.
Well, I write too much unnecessary info... I need to stop
Let's get down to the point. I will get the phone tomorrow!!
TL;DR
How do I check the bootloader version? I want to flash TWRP right away and maybe install a Note4/5 port or something stock Android, do I need to be careful with the bootloader?
I know from other phones (i.e LG G2) that any custom rom uses KK bootloader and the stock roms use their respective version bootloader. Is this also true for the Note?
Also, which version of TWRP should I flash? Does it depend on the stock rom version that I have?
Checking if the device has 2.3x GB of available RAM, if Odin and Recovery have their stock aspect and if the S-Pen works is enough to ensure that the Note I'm getting is truly original?
Well, that's all. I'm sorry if I'm asking the same questions everyone does. I'm used to Nexus so I'm afraid of bricking the Note with dumb moves. That's why I am taking my time to read every important thread and asking here some doubts that went into my mind while doing the required reading. I have no warranty (no box nor invoice) so I can't afford to mess up with the new babe
Cheers!
This app!
diogofd8 said:
Hello.
Ever since I bought a Galaxy Nexus and found XDA, my life changed. Without noticing I got infected a virus: addiction to Android.
My Nexus got outdated quickly and now is pretty done and I need a new toy. 3,5 years later I finally got some spare money to buy a new phone. Since here in Portugal the minimum wage is around 500€ and top flagship phones cost around 700€ (and there's no affordable contract to get something cheaper and still nice), I had to wait until now to get a used Note 3 for 300€.
I love the phone's design and above all the specs. There's no other phone with 3GB RAM and Snap 800 for this price and I always liked big sized phones.
Well, I write too much unnecessary info... I need to stop
Let's get down to the point. I will get the phone tomorrow!!
TL;DR
How do I check the bootloader version? I want to flash TWRP right away and maybe install a Note4/5 port or something stock Android, do I need to be careful with the bootloader?
I know from other phones (i.e LG G2) that any custom rom uses KK bootloader and the stock roms use their respective version bootloader. Is this also true for the Note?
Also, which version of TWRP should I flash? Does it depend on the stock rom version that I have?
Checking if the device has 2.3x GB of available RAM, if Odin and Recovery have their stock aspect and if the S-Pen works is enough to ensure that the Note I'm getting is truly original?
Well, that's all. I'm sorry if I'm asking the same questions everyone does. I'm used to Nexus so I'm afraid of bricking the Note with dumb moves. That's why I am taking my time to read every important thread and asking here some doubts that went into my mind while doing the required reading. I have no warranty (no box nor invoice) so I can't afford to mess up with the new babe
Cheers!
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en
this app will help you confirm your phone.
then you can proceed flashing twrp and supersu, things are so easy for N9005
and Welcome Aboard
Install phone info samsung from playstore. It could tell a lot about your phone.
To make it easy as long as the phone is running with android version 4.4.2 and above you should use twrp 4.4. If 4.3 use the right one for 4.3.
Sent from my SM-G925F
White Note3 do you have? There are several versions made by Samsung.
Regardless of the bootloader on the phone, I recommend using the latest TWRP as the latest TWRP can be used to flash all ROMs and zip files. Find your device from here: https://twrp.me/Devices/
Before moving to custom ROMs, I also recommend installing the latest bootlloader and ROM.
Not sure if your phone still has warranty but if it does, I would not change the ROM or root because doing either may trip the knox counter and void the warranty.
nijom said:
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en
this app will help you confirm your phone.
then you can proceed flashing twrp and supersu, things are so easy for N9005
and Welcome Aboard
Click to expand...
Click to collapse
Thanks! I will keep the link in my favorites and install the app when I get the chance to test things.
Rosli59564 said:
Install phone info samsung from playstore. It could tell a lot about your phone.
To make it easy as long as the phone is running with android version 4.4.2 and above you should use twrp 4.4. If 4.3 use the right one for 4.3.
Sent from my SM-G925F
Click to expand...
Click to collapse
Thanks! I'm pretty sure it has 4.4.x or lollipop. Should I update to any of those versions (just in case it comes with 4.3) first and then install TWRP?
audit13 said:
White Note3 do you have? There are several versions made by Samsung.
Regardless of the bootloader on the phone, I recommend using the latest TWRP as the latest TWRP can be used to flash all ROMs and zip files. Find your device from here: https://twrp.me/Devices/
Before moving to custom ROMs, I also recommend installing the latest bootlloader and ROM.
Not sure if your phone still has warranty but if it does, I would not change the ROM or root because doing either may trip the knox counter and void the warranty.
Click to expand...
Click to collapse
The phone doesn't come with box nor invoice so I don't have any warranty xd
What is the number or version of the latest bootloader?
What is the model # of the phone? There is the n-900t, n9005, n-900w8, etc.
N9005, it's the european unlocked version
The model # is important when asking questions because the AT&T version of the note 3 has a locked bootloader so it's more complicated to flash custom recovery and to get root.
If you want to run custom ROMs, I recommend upgrading to the latest modem and bootloader, install a custom recovery, back up your stock ROM, and try some custom ROMs to see which one you like.
Look for the tar version of TWRP for your phone from here: https://twrp.me/Devices/
You can flash TWRP with Odin.
audit13 said:
The model # is important when asking questions because the AT&T version of the note 3 has a locked bootloader so it's more complicated to flash custom recovery and to get root.
If you want to run custom ROMs, I recommend upgrading to the latest modem and bootloader, install a custom recovery, back up your stock ROM, and try some custom ROMs to see which one you like.
Look for the tar version of TWRP for your phone from here: https://twrp.me/Devices/
You can flash TWRP with Odin.
Click to expand...
Click to collapse
I'll get the phone tomorrow!!!!!
So, by upgrading to the latest official rom avaiable I'll have the most recent modem and bootloader, right?
Do I need to follow the order you mentioned: modem->bootloader->recovery->backup->croms or can I flash TWRP, backup every partition, flash most recent modem and bootloader (not sure if I can flash a bootloader) and then install croms?
No, only flashing a newer custom ROM won't update your Bootloader and Modem. You will need to flash those files separately via Odin. Then you can flash the custom ROM you want. The order is simple. Get a custom recovery first, TWRP. Then update your Modem and Bootloader. Then wipe the device from TWRP (full wipe, take backup beforehand if you need) and flash the custom ROM of your choice.
Safest way to upgrade the modem and bootloader is via ota update on a completely stock unrooted rom with stock recovery. After the phone is running the latest rom, then start with customization.
audit13 said:
Safest way to upgrade the modem and bootloader is via ota update on a completely stock unrooted rom with stock recovery. After the phone is running the latest rom, then start with customization.
Click to expand...
Click to collapse
I have the phone and managed to update it to 5.0 -> n9005xxugboa1
Is it the latest version or should I update it to another one?
BOD2 appears to be the latest according to sammobile.com: http://www.sammobile.com/firmwares/database/SM-N9005/
audit13 said:
BOD2 appears to be the latest according to sammobile.com: http://www.sammobile.com/firmwares/database/SM-N9005/
Click to expand...
Click to collapse
I'm from Portugal but the phone is unlocked (no carrier) and they only have firmware for carrier notes... Which one should I download and flash?
Also... with a G2 I flashed a .kdz file (official rom) and ended up with a bricked phone (later fixed via warranty), but I have no warranty in this phone, how can I make sure that the file is safe?
Just check for software updates from your phone.
audit13 said:
Just check for software updates from your phone.
Click to expand...
Click to collapse
It says the phone is already at the latest version. I've cleaned framework services and checked again but got the same result.
Try removing the SIM card and moving the date ahead by two days, then try again.
audit13 said:
Try removing the SIM card and moving the date ahead by two days, then try again.
Click to expand...
Click to collapse
Done that, no update avaiable. Connected to Kies3, no update avaiable.
Is it really in a old version? It's 5.0. Do I really need the latest version to start flashing a recovery?
Also, can I use the recovery without flashing it? I want to check if it works nicely before flashing if it is possible. TWRP can be used to flash any rom right? I'm interested in trying darklord first.
Yes, you can flash recovery without updating. I suggested updating because the update probably deals with the stage fright bug.
Hi Guys,
semi-noob here. I have a galaxy s4 (sprint) model sph-l720 that I have activated on Boost Mobile carrier. I got it used and it works fine. I was very unhappy with battery life. I saw a way to convert s4 to s5 by flashing customer rom and thereby getting the ultra power saving mode. I followed the guide but since I'm new I can't post the URL the ROM is echoe rom v29 s5 port part v
kernal 3.4.101-v5.1
I could not root it using there method and even though twrp installed it would not initialize. I found an autoroot file that I installed with ODIN and it worked, phone was rooted. then I installed ROM manager from the play store and installed CM Recovery. that worked. then I installed the echoe ROM from that page. it all worked but now some things are not working. getting xposed not activated messages, mobile data shows a connection but I can't access the network. some other things now wokring either. it also changed my model number to GT-I9505, which I thought was weird...should I be concerned about that? . also it's android 4.4.2 and it might be better to have 5? . So, after all that, my question is to recommend a ROM that is newer but still have the power saving mode, that hopefully fixes the things that are not working. my main concern is battery life and performance. I don't care about things like themes. I hope that makes sense and I appreciate any help. Thanks
Yeah you got a long way to go.
You cannot and should not flash roms from other devices to your device. Unless it's stated that it will also work on your device. You also should not follow guides on those wannabe tech blogs unless it on XDA. If the guide is a Youtube video, then skip it. All those guides suck and are usually incomplete or outdated. For example you flashed a v29 version. When I look on the website of echoerom their latest version is v58.... And besides that there isn't even an sph-l720 version available.
Bottomline:
You flashed an outdated recovery, you flashed an highly outdated rom that's for the I9505 and not for your phone. No worries, you didn't brake anything.
This is the section for your phone.
http://forum.xda-developers.com/galaxy-s4-sprint
1. Use TWRP instead of CWM. CWM is outdated and should not be used for our phone anymore.
Hey guys,
I'm going to install a custom ROM today to see if that maybe fixes my SensorHub not working. I just need guidance on the correct procedure. I have a SM-N900 model (N900XXUEBOL2) running Lollipop 5.0. Do I first need to root, or can I install a custom ROM straight from the stock recovery? It seems like there aren't may ROMS available for the SM-900 model, but I've found one that seems to have good battery life and performance: TR-ROM. This is the procedure I will follow:
1) Root phone with CF-Auto-Root-ha3g-ha3gxx-smn900.zip
2) Use ODIN to flash n900-cwm-recovery-6.0.5.0-kk_L5.0(0812).tar
3) Flash TR-ROM from CWM: TR-ROM XDA
Is this all correct? I just want to make sure that I don't brick my phone!
Also, how can I revert back to stock if I need to?
Thanks so much!!!
Guit4eva said:
Hey guys,
procedure. I have a SM-N900 model (N900XXUEBOL2) running Lollipop 5.0. can I install a custom ROM straight from the stock recovery?
NO
Click to expand...
Click to collapse
OK. ..so are the 3 steps I mentioned above correct?
http://forum.xda-developers.com/galaxy-note-3/general/guide-root-note-3-sm-n900-5-0-install-t3069670
I'm trying to follow that guide, but the build number of N900 on the CF-Root site says:
LRX21V.N900XXUEBOA6
Whereas mine is:
N900XXUEBOL2
Will is still work? Also, it says a locked bootloader will probably brick your device. How do I check if mine is locked?
I've rooted and installed custom roms on many devices before - I'm not sure why rooting and installing custom rom on the Note 3 is so daunting...
Google?
Sent from my Note 3 running Purify CM13
Dejan Sathanas said:
Google?
Sent from my Note 3 running Purify CM13
Click to expand...
Click to collapse
I wouldn't be asking here if I hadn't already Google'd extensively.
But of course... The phone is brand new, so there's no info yet available. I understand...
Yes, do as you wrote in the first post. Should be ok, as those are the latest files.
Sent from my Note 3 running Purify CM13
I'm finding that there is actually TOO much information (too many variables). That's why I'm asking specifically about my version, as I can't seem to get my head around it - and rather than brick my phone, I'm merely seeking a bit of guidance from someone more experienced than me. In the past, when I was rooting previous phones, I received a lot of useful information and help from XDA - but it seems like now all I'm getting are sarcastic remarks and general unfriendliness. Why is that?
You have N900 its an exynos model not the qualcom .Not something that has a big following on here .
The links in your post point to zips , whats the point of me downloading a zip ??
CF autoroot you need to read the instructions regarding builds .
Locked boot loader no idea for that model .
CWM yes flash via Odin if its the correct one for your model .
Flash rom yes the rom will give you the method .
Hello friends,
I would like to install custom rom on my phone Note 4 sm-n910C . I'm not an experienced person for it. But basicly I know that I need to root my phone 1st then install suitable version of TWRP on my phone. And then I can backup my stock rom and all things. Then install custom rom file.
But I scare to brick my phone doing this procedure. So I wonder, can i backup my phone's stock rom and other all things (kernel, firmware, modem etc...) without TWRP ? I mean , can do it with pc software ?
And if my phone become brick, thus, can i restore it completely via pc then ?
If i can do that, how ?
I'll be appreciate if you help me ?
Choose your Country and phone provider and download the stock ROM from Sammobile
If it's needed then use Odin to reload it. There's plenty of guides how to use it including those that explain how to root. I recently rooted one of my Note 4s, a N910C and apart from using a slightly older version of TWRP was pretty straightforward.
I used this guide and the downloaded the files from the links in it but there's other's available but be 100% sure you're following the guide for a N910C.
I'm not that knowledgeable about Rooting compared to many people on here although I've rooted all my Tablets and Phones but seem to recall you may need to use an older version of Odin to do so. The most difficult problem I had was getting the correct driver installed that would recognise all my devices and even that was just persistence. Just read everything a few times and double check you have the correct files before you start, it's pretty straightforward.
In all the above comments I'm assuming you're using the last version of the stock ROM that was released.
@Big Elf
Thank you very much for your reply and explanation. I looked at your shared pages. And I'd like to start it.
But I have some quesitons to not make a mistake. If you guide me, I will be appreciate.
But before that let me share my phone feautres screen shots. You may see all detailed information.
SCREENSHOTS
I can't share links due to xda rules bcos I need to reach 10 post. So pls complete http section if it need for below scrshoot links.
1- drive.google.com/open?id=0B6aBME5e-tzcYk1zY0dqeTZaMVk4eEdWbjN4SWVPSEU3cXFr
2- drive.google.com/open?id=0B6aBME5e-tzccHF6UFpCT29JT1ozRUFoMUtmWmZ0V0J3c19z
3- drive.google.com/open?id=0B6aBME5e-tzcajVnMGkyMTRJdmo3OTNPc29SQXlEbkY0R3N3
And My Questions
1- First of all ty for rooting page. According to explanation i'm going to root my phone. But I wonder that android version is matter or not. My phone version is 6.0.1 as you see. Is it okay, its suitable for my phone, right ?
2- As far as I read on internet, There are all TWRP versions are different for all diffrent smartphones. According to above scrshoot informations, which is the suitable, stable and latest version for my phone ? And Where can i find it from ? Or if its possible could you forward me exact page and/or link please ?
Because my scared major thing is that. Wrong type of TWRP. And so brick my phone. Btw, let me ask, wrong version lead to brick phone, right ?
If I install the true type (version anyway) of TWRP then I will be relax. Because after that, process will be very easy for me. I experienced from Huawei's first phone "IDEOS X5" . I have installed TWRP and custom roms on it , on years 2012-2013. I only scare to make mistake via perform it on note 4 & brick it.
Thank you so much again.
You've made your first mistake . I explained you need to read everything carefully and double check you have the correct files before starting so that you're reasonably confident that you know what you're doing.
The link I posted explaining how to root also has the link to the version of TWRP and Odin needed to install and Root it but you didn't read it properly.
You're running the same version of the ROM I have on my N910C albeit a different country (which won't make a difference).
If you install the Official TWRP App from Team Win you can update TWRP after rooting. I'd also suggest installing the SuperSu (Pro) App from Codingcode which will update itself after rooting. I also use Root Checker (Pro) from joeykrim to check that root has worked and SuperSu has installed correctly. All those apps are available in the Play Store. I pay for the Pro versions as I appreciate the work that's gone into them and as a thank you to the developers.
You don't have to root it so don't feel that you have to do so.
Although all my phones are rooted my Note 4s (N910Fs and a N910C) still run the stock ROM and the main reasons I did so was to run Adaway and also to debloat neither of which are essential. I also wanted to know how to do it.
Installing another non-Samsung ROM has 4 main disadvantages:
You lose the fine control over the OLED screen including the boost mode in bright sunlight
You lose some of the functionality of the s-pen
You lose a lot of quality from the camera that you won't get back with any ROM.
Most of the ROMs have some faults other than those just mentioned but are usually but not always minor.