Rooting a Galaxy S4 (SGH-i337) in 2021 - AT&T Samsung Galaxy S 4 General

Greetings. It seems the AT&T subforum for the Galaxy S4 might be dead. I was trying to look for an up-to-date way to root this phone with Magisk, but it seems that step one isn't possible since apparently the bootloader isn't unlockable, or might not be one of the ones listed as usable. I can't check which one I have because neither adb shell nor terminal emulator recognize getprop, with the latter not allowing the punctuation. I want to see if I can use the sd card as internal storage, since apparently the Google Play app writes a lot of garbage until the available storage is only 1GB. I found that out by uninstalling its updates. What's the current modern way to use the SD card as internal storage for Android versions older than M?

Don't know what happened, but Retrial edited his post on "S4 Unified Collection!" such that the magisk rooting guide redirects to a guide for Xiaomi phones. Will that really work for the S4?

Forgive me for necro-ing but did you ever find a solution to this?
Edit: ok so I looked up (1337UCUEMK2)
which lead me to evilpenquin123's comment here
[ROOT[RECOVERY] Loki + TWRP + Motochopper CASUAL-R527b release:27May13
Update: This will not work on Build Number I337UCUAMF3 Thanks to Dan Rosenberg, aka djrbliss, this device can now be unlocked and CASUAL can make it easy as all get out. Introduction CASUAL will guide you through the process. Put...
forum.xda-developers.com
Under that was devildogs link to this thread
Safe (NOT vroot or kingo) root method for MK2
I saw this mentioned in passing on another thread and thought it was worth mentioning in its own thread. (Sorry if this has been posted in this forum already but I tried searching and couldn't find it.) K1mu has developed a safe root method...
forum.xda-developers.com
Which lead me here
Safe (NOT vroot or kingo) root method for MK2
I saw this mentioned in passing on another thread and thought it was worth mentioning in its own thread. (Sorry if this has been posted in this forum already but I tried searching and couldn't find it.) K1mu has developed a safe root method...
forum.xda-developers.com
here
[ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3
Disclaimer: rooting your phone entails risk. You may brick it, cause it to catch fire, cause it to form the first node in the Skynet network, or otherwise render it inoperable. Please read the directions carefully to ensure that nothing...
forum.xda-developers.com
and here
[Q] 4.3 AT&T root
Hello all, I have a AT&T Samsung Galaxy S4 that just updated to 4.3. Can someone direct me to how I can gain root access? Also, I am assuming that noone has published a way to crack the bootloader as of yet? Thanks in advance for any help...
forum.xda-developers.com

I would like to have an unroot guide for this phone to.
Basically, what I've found in this forum is that you have to "DOWNGRADE" to NB1 (from OK3), and then you can use "SAFESTRAP" of somekind(?) to get a rom, but without unlocked bootloader. I believe, this is going back to Android 4.4.2 or something. Basically, it's forcing to downgrade significantly, which beats the purpose.
I wanted an unlocked bootloader, to get newer ROMs, to increase storage. i.e. use external SD as internal. However, it seems apps don't always allow it to be installed this way, and also causes much headaches - speed is one thing, and data corruption is another etc.
In short, there is NO existing way to circumvent unlocking bootloader. Maybe a professional hacker may do it? NSA? By that point, use that cash to get a new phone. LOL.
Disappointed that this phone is still like brand new, and has plenty more life left, like, 10 more years... it keeps working.

Related

Rooting Samsung Galaxy Core Prime (G360T)

Hey everyone,
So this is pretty straight foreward, I'm attempting to root my Galaxy Core Prime (G360T, from T-Mobile in US) and I have had absolutely zero luck finding ANYTHING related that model number.
I've found plenty of stuff here, but it is all related to the G360H, G, and even the T1 (i think?) I've tried Kingo, Odin, and a few other things and I'm getting absolutely no where.
I'm wondering if anyone out here has had any luck with rooting this device in particular, or if maybe there is something I'm missing? I'm pretty new to the idea of rooting devices but I'm a proficient technically so I'm not exactly sure what is going on.
Is it T-Mobile software or something blocking the ability to root? I can't believe there is that much of a difference between my phone and say the G360H.
Thanks in advanced for the help, as I'm totally clueless at this point.
Snlich said:
Hey everyone,
So this is pretty straight foreward, I'm attempting to root my Galaxy Core Prime (G360T, from T-Mobile in US) and I have had absolutely zero luck finding ANYTHING related that model number.
I've found plenty of stuff here, but it is all related to the G360H, G, and even the T1 (i think?) I've tried Kingo, Odin, and a few other things and I'm getting absolutely no where.
I'm wondering if anyone out here has had any luck with rooting this device in particular, or if maybe there is something I'm missing? I'm pretty new to the idea of rooting devices but I'm a proficient technically so I'm not exactly sure what is going on.
Is it T-Mobile software or something blocking the ability to root? I can't believe there is that much of a difference between my phone and say the G360H.
Thanks in advanced for the help, as I'm totally clueless at this point.
Click to expand...
Click to collapse
No man there is no blocking,its just that right now nobody developed an exploit for thta specific phone.Give it some time.
Snlich said:
Hey everyone,
So this is pretty straight foreward, I'm attempting to root my Galaxy Core Prime (G360T, from T-Mobile in US) and I have had absolutely zero luck finding ANYTHING related that model number.
I've found plenty of stuff here, but it is all related to the G360H, G, and even the T1 (i think?) I've tried Kingo, Odin, and a few other things and I'm getting absolutely no where.
I'm wondering if anyone out here has had any luck with rooting this device in particular, or if maybe there is something I'm missing? I'm pretty new to the idea of rooting devices but I'm a proficient technically so I'm not exactly sure what is going on.
Is it T-Mobile software or something blocking the ability to root? I can't believe there is that much of a difference between my phone and say the G360H.
Thanks in advanced for the help, as I'm totally clueless at this point.
Click to expand...
Click to collapse
i just orderd samsung galaxy core prime because no one is developing any thing at all for this device.I will be making root exploit and start cooking rom for this device so just wait a bit and i will be working on it.
Waiting for rooted kernel for G360T1 or G360T
Arrowblue said:
i just orderd samsung galaxy core prime because no one is developing any thing at all for this device.I will be making root exploit and start cooking rom for this device so just wait a bit and i will be working on it.
Click to expand...
Click to collapse
There are many of us using the MetroPCS version G360T1 that will gladly try any root method you get going. Feel free to contact directly if you need some testing help. While waiting for root, I tried Package Disabler Pro 3.7 that was released September 15. It works fine on the G360T1, although it says "Custom" under "Device status" in "About Device -> Status." Haven't gone to Download Mode to see if the triangle is set or not, but I'm guessing the flash counter has been tripped. I'm not worried about it too much, and it may have been tripped with some other attempt to root the device. Still, this app was just what I needed to disable all the junkware and still have a smooth working Lollipop 5.1.1 while waiting for the real goodies.
alienwarning said:
There are many of us using the MetroPCS version G360T1 that will gladly try any root method you get going. Feel free to contact directly if you need some testing help. While waiting for root, I tried Package Disabler Pro 3.7 that was released September 15. It works fine on the G360T1, although it says "Custom" under "Device status" in "About Device -> Status." Haven't gone to Download Mode to see if the triangle is set or not, but I'm guessing the flash counter has been tripped. I'm not worried about it too much, and it may have been tripped with some other attempt to root the device. Still, this app was just what I needed to disable all the junkware and still have a smooth working Lollipop 5.1.1 while waiting for the real goodies.
Click to expand...
Click to collapse
The thing is i got g3601 and its running kitkat and no update availble on it ??? so i am porting 5.1 for it.Recovery has been patched up and working kinda fine but need to fix alot of issues.normally i dont develop for mid range mobiles but my brother got one so that is why i started with this one.my first projects are z3 + and xperia lines.I will let you know when it is completed for testing.
Hmm, I thought this was for SM-G360T and the Samsung Galaxy Core Prime that is out for T-Mobile and running Lollipop 5.x. Is the G3601 a typo or different model? The MetroPCS G360T1 will work fine with the firmware and files from T-Mobile G360T because they are the same device and even same network provider. Anyway, it looks like someone was kind enough to modify the kernel source code the Samsung posted just a week or two ago. Here is the news, but be warned that it will trip the KNOX flag:
http://forum.xda-developers.com/galaxy-core/development/kernel-root-root-sm-g360t1-5-1-1-t3203522
I put my G360T1 in download mode and it still says official and no warning triangle. I mentioned that it said custom in the About Phone page after doing other terminal entries and running Package Disabler Pro 3.7. Some may want to wait to root the device until there is a deodex'd rom out there to run xposed framework. I like the slimed down stock 5.1.1 and there are a bunch of garbage programs hogging the decent entry level device resources. More news to come...
root for sm g360ti
Follow this link:
http://forum.xda-developers.com/galaxy-core/development/kernel-root-root-sm-g360t1-5-1-1-t3203522
Rooting using the same files as G360t1
I have rooted the g360t using the files from this post http://forum.xda-developers.com/galaxy-core/development/kernel-root-root-sm-g360t1-5-1-1-t3203522 which are for the g360t1 variant and it went well but you have to go to developer options and activate OEM unlocking for it to work and I did it with Odin version 1.85.
Rooting sm-g360t
Snlich said:
Hey everyone,
So this is pretty straight foreward, I'm attempting to root my Galaxy Core Prime (G360T, from T-Mobile in US) and I have had absolutely zero luck finding ANYTHING related that model number.
I've found plenty of stuff here, but it is all related to the G360H, G, and even the T1 (i think?) I've tried Kingo, Odin, and a few other things and I'm getting absolutely no where.
I'm wondering if anyone out here has had any luck with rooting this device in particular, or if maybe there is something I'm missing? I'm pretty new to the idea of rooting devices but I'm a proficient technically so I'm not exactly sure what is going on.
Is it T-Mobile software or something blocking the ability to root? I can't believe there is that much of a difference between my phone and say the G360H.
Thanks in advanced for the help, as I'm totally clueless at this point.
Click to expand...
Click to collapse
I got it rooted with king root but can't fined recovery and can't turn phone off it just bootloops how you fix that
Has anyone had SUCCESS rooting a SM-G360T device?
Snlich said:
Hey everyone,
So this is pretty straight foreward, I'm attempting to root my Galaxy Core Prime (G360T, from T-Mobile in US) and I have had absolutely zero luck finding ANYTHING related that model number.
I've found plenty of stuff here, but it is all related to the G360H, G, and even the T1 (i think?) I've tried Kingo, Odin, and a few other things and I'm getting absolutely no where.
I'm wondering if anyone out here has had any luck with rooting this device in particular, or if maybe there is something I'm missing? I'm pretty new to the idea of rooting devices but I'm a proficient technically so I'm not exactly sure what is going on.
Is it T-Mobile software or something blocking the ability to root? I can't believe there is that much of a difference between my phone and say the G360H.
Thanks in advanced for the help, as I'm totally clueless at this point.
Click to expand...
Click to collapse
My specs:
Model #: SM-360T
Android Version: 5.1.1
Baseband Version: G360TUVU1AOF9
I migrated from Nokia 521 - Windows 8.1 phone to this Android device because of the litany of apps I could use for productivity. I am highly disappointed that I am unable to revoke permissions of applications to resources I think they don't need. So, I basically use phone to make calls and text. If someone has successfully rooted THIS smartphone version, please advise. I'm a little technical, too.
Try this: https://autoroot.chainfire.eu. find your model and download the file you need, unzip it then put your phone in download mode and use odin 3.7 to send it to the phone. That outta be enough. I have not rooted this particular device in a while but I have rooted plenty of others using that method and it works like a charm every time. I just did a quick look up and your model is listed there. Give it a try and post your results.
Thank you so much, Geevil!!!
Appreciate your response.
alienwarning said:
Hmm, I thought this was for SM-G360T and the Samsung Galaxy Core Prime that is out for T-Mobile and running Lollipop 5.x. Is the G3601 a typo or different model? The MetroPCS G360T1 will work fine with the firmware and files from T-Mobile G360T because they are the same device and even same network provider. Anyway, it looks like someone was kind enough to modify the kernel source code the Samsung posted just a week or two ago. Here is the news, but be warned that it will trip the KNOX flag:
http://forum.xda-developers.com/galaxy-core/development/kernel-root-root-sm-g360t1-5-1-1-t3203522
I put my G360T1 in download mode and it still says official and no warning triangle. I mentioned that it said custom in the About Phone page after doing other terminal entries and running Package Disabler Pro 3.7. Some may want to wait to root the device until there is a deodex'd rom out there to run xposed framework. I like the slimed down stock 5.1.1 and there are a bunch of garbage programs hogging the decent entry level device resources. More news to come...
Click to expand...
Click to collapse
I'm running stock 5.1.1 on G360t and just got some root using this kernel so tanks for the help and all the fish
Hello how would one root the sm-g360t and get custom recovery on it ?
Sent from my SM-G360T using Tapatalk
I have the sm g360t1, though no computer to connect the phone to. I see this phone listed in the cf-auto root repository linked above- not sure if that method needs a computer. King root may have worked, though the root gone by when using w0lfdroid's
Kingroot removal/supersu installer. It worked on orher phones.
King root is such spyware. I really want to try something else...
ewokmojo said:
I have the sm g360t1, though no computer to connect the phone to. I see this phone listed in the cf-auto root repository linked above- not sure if that method needs a computer. King root may have worked, though the root gone by when using w0lfdroid's
Kingroot removal/supersu installer. It worked on orher phones.
King root is such spyware. I really want to try something else...
Click to expand...
Click to collapse
Yes King Root is bad. Pretty much like malware for your device. Don't use cf-auto-root either, as it's kind of a generic root and doesn't really function properly. I'm helping people constantly fix their devices after either tryung King or CF. Use Trapkernel to root the SM-G360T1 & SM-G360T. It's quick and easy and roots the device with no problems.
http://forum.xda-developers.com/showthread.php?p=62859013 Here is the recovery you should use too in case anyone's wondering. You flash it the same way as root.
http://forum.xda-developers.com/showthread.php?p=66266209
I recommend using version 3.0.1-0 though, as version 3.0.2-0 has had problem flashing certain roms for some reason.
Thanks bogarty, I was able to root and flash custom recovery on my phone with both links you provided here.. I have the T-Mobile version (SM-G360T) but everything went well
Dont know if ppl still trying to root this device but I just found out that you can download the rooting file trough chainfire for this model. Here´s the link: https://download.chainfire.eu/767/C...to-Root-cprimeltetmo-cprimeltetmo-smg360t.zip
Why do that when there is a root method for this device.
Follow this thread here for all your root needs for this device
http://forum.xda-developers.com/gal...should work just fine for the tmobile version
will this allow me to use a at&t sim card in my SM-G360T phone instead of T-Mobile

SM-G930U (Unlocked US version) root?

I've got the SM-G930UZKAXAA arriving today and after a ton of searching, I can't figure out if there's a stable root for it. Do I use the AT&T method with the engineering image for that device?
Also is there just one thread that has solutions for all the problems rooting seems to be giving it?
Honestly I don't even need root that badly, I just want to use Titanium Backup to bring over my apps from my Oneplus 3, since Helium won't work on an encrypted device.
Yes, follow AT&T root directions with EngineeringBoot for G930U. The only problem I had was the wifi saving. There's a couple different ways to fix that. I used S7_or_S7Edge_Fixes_Debloater_V15.zip from: http://forum.xda-developers.com/verizon-galaxy-s7/how-to/how-to-notes-root-install-xposed-unroot-t3411039.

Have superuser access but "-su: not found"

I have rooted my samsung galaxy s7 edge from sprint, G935PVPU4BQH1 with some engineering bootloader through odin. I am currently having trouble installing and running kali through the deploy apk. With some searching I found some help for setting up linux but I reached a dead end with a terminal emulator basically telling me I am not rooted with "/system/bin/sh: -su: not found" all I thought i know has been shaken and I see there is no spoon. Please help me root my galaxy s7 edge with the above software version or explain to me why I can't.
this is hard for a noob, any help is much apreciated
Please help ?
Sometimes a root doesn't take. You may have to retry as something could have gone wrong internally even if you followed instructions perfectly.
Araltd said:
Root Android 7.0 Nougat on Galaxy S7 & S7 Edge devices. YES! Supports all USA Qualcomm variants. T-mobile, AT&T, Verizon and *Sprint (*Note: Some people have reported problems with the Sprint device after root, while others have had success. As always, read the thread for detail and use at your own risk)
** THIS IS NOT FOR THE EXYNOS VERSION OF THE S7! **
Click to expand...
Click to collapse
Sprint version has reported problems.
However, I strongly advise against rooting the device due to this post. If Chainfire has issues rooting the S7 consistantly, a community expert, then any attempts at rooting are purely experimental. At this point you may be able to root the device with a real possibility of a hard brick and no logs to prevent the same for future users.
If you still would like to give it a shot, I recommend reading the links in this post and last few pages of the root thread.
TehZig said:
Sometimes a root doesn't take. You may have to retry as something could have gone wrong internally even if you followed instructions perfectly.
Sprint version has reported problems.
However, I strongly advise against rooting the device due to this post. If Chainfire has issues rooting the S7 consistantly, a community expert, then any attempts at rooting are purely experimental. At this point you may be able to root the device with a real possibility of a hard brick and no logs to prevent the same for future users.
If you still would like to give it a shot, I recommend reading the links in this post and last few pages of the root thread.
Click to expand...
Click to collapse
Thanks man I appreciate the link to that post, I still had the same error in my terminal emulator but then my dumbass figured out that there are multiple directories root can be installed in, I checked which one I had with root checker and had it fixed in the terminal, thank you

Thinking of rooting my LG Stylo 6

Hi, all! I'm relatively new to this forum, new to rooting phones and have little to no experience in this. I'm sorry for posting this in the LG Stylo 3 forums; I couldn't find a forum unique to the LG Stylo 6 so I thought this might be a good place to start.
So!
I'm using an LG Stylo 6. Model # LM-Q730MM. MetroPCS is my carrier.
I'm not a fan of Google, its invasive approach toward my phone, nor its apps taking up space on my phone. Also, I'm curious about the pros and cons of rooting. I have a few questions and any info would be excellent!
1. What can a rooted phone do exactly?
2. If I root my LG Stylo 6, can that process be reversed?
3. Will rooting my phone get me into trouble with MetroPCS? Will I still be able to make phone calls? Will I still have access to all of the applications I already have installed on my phone?
4. What else should I know before rooting my phone?
I posted a possible root method in another thread.. I'll give the link since I don't want to retype.. feel free to try and share results.. https://forum.xda-developers.com/t/...a-latest-ota-update-payload-bin-dump.4140013/
Always go with official method in order to root any android device. No matter device is LG, vivo, and Samsung. I found a lots of website who guiding the steps to root LG Stylo 6 in 10-15 minutes and having positive feedback.
But before implementing the rooting steps make sure you check this list -
Device bootloader should be unlocked
Charge your device 60-70% ( It's normal recommended to avoid any risk )
If you're following PC method then make sure you have a data cable to connect your LG device else if you're following without PC then not need to do.
These are some important which you should keep in mind.
Here a safe box guide website simple method to root Lg Stylo 6 without PC - https://safeboxguide.com/root-lg-stylo-6/ After reading this article it would be clear how you can root LG Stylo 6 without PC with Magisk + KingoRoot method.
Hope you love it.
* The device bootloader cannot be unlocked because LG has prevented access to the bootloader.
* The safeboxguide article is a replicate of any other article you read and they have done zero research whatsoever and are only attempting to obtain views for ad revenue and clicks on their website.
* Root is currently unachieved on the device and LG devices are notorious for being unnecessarily difficult to unlock, let alone gain even a temporary root shell inside of.
* We are working on this actively and have been since about early January.
Please see our thread here and feel free to join our Discord server here.
haise.zero said:
* The device bootloader cannot be unlocked because LG has prevented access to the bootloader.
* The safeboxguide article is a replicate of any other article you read and they have done zero research whatsoever and are only attempting to obtain views for ad revenue and clicks on their website.
* Root is currently unachieved on the device and LG devices are notorious for being unnecessarily difficult to unlock, let alone gain even a temporary root shell inside of.
* We are working on this actively and have been since about early January.
Please see our thread here and feel free to join our Discord server here.
Click to expand...
Click to collapse
I unlocked the bootloader on my stylo 6! I am in the process of getting root but need help with making a twrp
First rooted stylo 6! Now I just need to figure out how to build a twrp for the first time ever.
Warlockguitarman said:
View attachment 5341253First rooted stylo 6! Now I just need to figure out how to build a twrp for the first time ever.
Click to expand...
Click to collapse
How did you achieve root?
Follow my tutorial here in XDA https://forum.xda-developers.com/t/...her-k-model-lg-devices.4364489/#post-85982185
Warlockguitarman said:
Follow my tutorial here in XDA https://forum.xda-developers.com/t/...her-k-model-lg-devices.4364489/#post-85982185
Click to expand...
Click to collapse
yeah, screw all that. I saw that thread and lost interest.
Lol, it's not that hard, I just had to write it up like that for newbies that don't have any experience with python, anyone that has any experience with Linux or python can do it in just a few min. Complete newbies have followed my tutorial and achieved root, very few have done it but that just makes it that much more worth it.
hey im new at this but ive tried a few other programs and apps on my pc.. lg bridge worked but didnt.. im able to connect to it and downloaded an update that was about it.. lgw i am able to wipe the phone and boot into download mode but thats it.. other programs havnt connected or wont allow me access.. now my lg q stylo plus is frp locked but im missing something as i cant seem to connect or access file system to manually remove user lock.. any ideas of a way to enable usb connection thru my pc and any suggestions on where to get flash files for use on odin.... which i still need to enable developer options on the phone which is my major issue rn???
Darby101 said:
hey im new at this but ive tried a few other programs and apps on my pc.. lg bridge worked but didnt.. im able to connect to it and downloaded an update that was about it.. lgw i am able to wipe the phone and boot into download mode but thats it.. other programs havnt connected or wont allow me access.. now my lg q stylo plus is frp locked but im missing something as i cant seem to connect or access file system to manually remove user lock.. any ideas of a way to enable usb connection thru my pc and any suggestions on where to get flash files for use on odin.... which i still need to enable developer options on the phone which is my major issue rn???
Click to expand...
Click to collapse
i have managed to reset a few samsungs and remove frp locks and screen locks on few iphones .. which is pretty simple mind u... and ive done a few older lgs as u usually have to manipulate thru setup menus and back door the users google account n such other backyard techie accomplishments and or feats so im not completely new to any of this but my terminology lacks but i know alot of the pc world tricks and cmd prompt. so any help is appreciated and this is kinda a learning curve for myself too.. thanks
i did manage to peice together a ps4 from a pile of parts ... wipe the hdd i aquired ... set the hdd for proper formatt and then was able to find and dowload the software and firmware package and put onto usb drive and within an hr i was up on playstation network playing game with it!!!! so im willing to try fail try again and learn.. but im hitting roadblocks with this lg q stylo plus

Question How to root Android 13?

Hi guys, I'm lookin to root my A525F with One UI 5.0
Also looking for necessary files to disable encryption.
Also I've received November Update for my country.
I have done root my A52 4G android 13 with magisk method.
llranga said:
I have done root my A52 4G android 13 with magisk method.
Click to expand...
Click to collapse
Nice.
Can you please share the exact method you carried on?
Follow the guide here to install TWRP and disable force encryption: https://forum.xda-developers.com/t/recovery-official-twrp-3-7-for-galaxy-a52-4g-and-a72-4g.4405751/
After that just flash Magisk.
Greetings to the XDA Team and all the other good people,
I want to root my Samsung Galaxy A52 4G, and just wanted to ask where should I start so I do it successfully, without upside-down moments. I already updated my phone to the latest, so now the phone is running Android 13.
I am a beginner in this, I educated myself from some videos online and on the XDA forum and saw that I can make my device more secure with root, I can disable system and apps trackers.
So my first question is, do I need to downgrade to Android 12 so the success rate becomes higher or I can stick with Android 13 and still get success for the end goal?
My second question is if what I wrote above this is a truth.
The third question is, how do I get my device running again if rooting fails?
The forth question is, can I unroot my device if I want it at some moment?
My fifth and last question is, is rooting worthy and needed so I can achieve my goals?
I still think I know nothing and want to expand my knowledge, so I ask people who are masters in this field to help me out with this, so I can become happier.
​Thanks for considering my request.
- your dear noobie user epeu.​
You can do root your phone. But you should not be panic. carefully read instructions and do it with patient without skipping none of the steps.
I'm also not an expert. but i have done rooting of more than 10 phones without failing.
you have to unlock your boot loader before rooting.
I doubt about your statement about device becomes more secure with root. it depends on what you do alter followed by root. yes you can improve privacy.
also your banking apps may stop work after rooting. so you have to apply necessary modules (security fixes) before get them start working again.
if rooting failed provided phone is not hard bricked, you can flash your original firmware to restore the phone. what i always do is keeping all the original firmware ready with me before doing any rooting.
yes. you can unroot by flashing original firmware.
last question is difficult to answer. majority of people use their phones without rooting. if you want to be different, it's up to you.

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