Database Users

Easiest Root for N915G

So, I was going to use Cf-Auroroot like I have for every other Samsung device I've got but apparently there's an issue with it for the N915G.
What I did was put the latest super su file (i used v2.40) on my external SD card and then in Odin flash the latest TWRP recovery from here - http://forum.xda-developers.com/note-edge/general/easy-steps-stock-odin-n915tuvu1anjl-sm-t2943993 (you can also use the sd card fix from here too, flash in TWRP, just install supersu, then add another flash file and install the sd card fix).
Go to recovery mode and flash super su.
I found it had an error flashing cache but a factory reset fixed this so best done BEFORE setting everything up.
Let phone reset, set it up and you now have root access with a clean install of stock rom.
Happy days.
This worked fine for me and left out the step of flashing CF-Autoroot which wasn't needed.
You will still trip Knox.
I don't know if this will work flawlessly for you or for all models, especially if the bootloader is locked, but theoretically it should.
Good luck guys, happy flashing.
And HAPPY NEW YEAR...:laugh:

Root for Lollipop
Thanks I have the 915g also and I used your method for Kitkat it worked flawlessly thank you I want to install lollipop now and I want to root again what method do I use and could you point me in the right direction please

jdoogzie said:
Thanks I have the 915g also and I used your method for Kitkat it worked flawlessly thank you I want to install lollipop now and I want to root again what method do I use and could you point me in the right direction please
Click to expand...
Click to collapse
Exactly the same method... I believe Twrp 2.8.5.0 and Supersu 2.4.6 were what I used to root Lollipop...

jdoogzie said:
Thanks I have the 915g also and I used your method for Kitkat it worked flawlessly thank you I want to install lollipop now and I want to root again what method do I use and could you point me in the right direction please
Click to expand...
Click to collapse
Is this for G version? Didnt work for me

pride_kr said:
Is this for G version? Didnt work for me
Click to expand...
Click to collapse
It seems to work on most variants, except those with locked bootloaders..
If it didn't I don't know why.
A lot of people have rooted their device this way....

ultramag69 said:
It seems to work on most variants, except those with locked bootloaders..
If it didn't I don't know why.
A lot of people have rooted their device this way....
Click to expand...
Click to collapse
I tried all methods described in these fóruns... Always giving fail message in Odin.... And authentication error on download mode

Try to see if you have untick the reactivation lock. Its under setting and security.
Sent from my SM-N915G using XDA Free mobile app

kuailan said:
Try to see if you have untick the reactivation lock. Its under setting and security.
Sent from my SM-N915G using XDA Free mobile app
Click to expand...
Click to collapse
Yes, it really was reactivation lock issue! Thanks!
But already went back to 4.4.4.... too many freezes, fc, on 5.0.1

pride_kr said:
Yes, it really was reactivation lock issue! Thanks!
But already went back to 4.4.4.... too many freezes, fc, on 5.0.1
Click to expand...
Click to collapse
You should not have many issues with 5.0.1. What you need to do after flashing the 5.0.1...you need to reset to factory setting. Im sure by now you know when upgrading..you still keep data from the kitkat. This may cause conflict and issues. At the moment the only issue i had is sometime i get that contact closed notifications. I have google this issue...seem like it happen to other phones to with early 5.0.1. For me im ok...cause it only happen very rarely...i hope a much later lollipop will fix this issues.
Sent from my SM-N915G using XDA Free mobile app

kuailan said:
You should not have many issues with 5.0.1. What you need to do after flashing the 5.0.1...you need to reset to factory setting. Im sure by now you know when upgrading..you still keep data from the kitkat. This may cause conflict and issues. At the moment the only issue i had is sometime i get that contact closed notifications. I have google this issue...seem like it happen to other phones to with early 5.0.1. For me im ok...cause it only happen very rarely...i hope a much later lollipop will fix this issues.
Sent from my SM-N915G using XDA Free mobile app
Click to expand...
Click to collapse
Yeah, that really makes sense... upgrading, and old data coming along... didnt think about that.... without xposed though..... not sure if Ill try it again!

I am interested in buying SM-N915G. does it have unlocked bootloader? if not, can it be unlocked? Appreciate advice.

Agent5150 said:
I am interested in buying SM-N915G. does it have unlocked bootloader? if not, can it be unlocked? Appreciate advice.
Click to expand...
Click to collapse
Aussie 915G is unlocked. As far as I know so are all others...
Mentioned locked bootloaders as this will work on other models too...

Got my SM-915G, and got it rooted and TWRP installed following you method. It is working with AT&T and I am getting LTE data speeds, but it is struggling on voice network. hardly any bars are visible on the signal strength icon.
Is there any solution?

Agent5150 said:
Got my SM-915G, and got it rooted and TWRP installed following you method. It is working with AT&T and I am getting LTE data speeds, but it is struggling on voice network. hardly any bars are visible on the signal strength icon.
Is there any solution?
Click to expand...
Click to collapse
Possibly flashing the modem and non-HLOS.bin for AT&T.
I can't really say as I live in Oz and have no problems with voice calls...
I do find that my bars don't tend to go over 3 or more than halfway but that could be due to where I live and the crappy coverage we get here... No problem with voice calls though...

I am not sure if I can install SM-N915A modem on 915G.
Can someone confirm if that is possible, if so, what version?

tell me one thing is xposed framework and freedom app now working on note edge 915G lollipop

Nope. Better stick with Kitkat if you intend to use Freedom and Xposed.

This method trips knox?

Greenarcher707 said:
This method trips knox?
Click to expand...
Click to collapse
Yes

Oh well, no way around it then. Warranty is for the timid anyway lol. Gotta pay to play.

SM-G530T1 Stock or Cutstom ROM

Okay, I have a Samsung Galaxy Prime with Metro PCS. I was just texting the other day and then my phone reset and I got a black screen saying Blocked by Binary FTP. So yes i made the mistake of bricking my phone and flashing the T-Mobiles SM-G530T firmware. I've looked everywhere for the Stock Rom but can't find it and not sure if there are any Customer Roms for this device. Can someone get me going in the right direction or am i best with just sendng it back to Samsung and letting them flash it?

same boat
http://forum.xda-developers.com/grand-prime/help/sm-g530t1-stock-firmware-kernel-t3236774

I have the fix 4 Galaxy Grand Prime SM-G530T1
I have the firmware 4 MPCS Galaxy Grand Prime SM-G530T1

give me Plissss I need them

HOW

Can I get link too please

I need that firmware also please send me the link as well

Here's the link with Galaxy Grand Prime SM-G530T/ T1 Stock rom flashed via Odin.
http://forum.xda-developers.com/galaxy-core/development/odin-5-1-1-sm-g530t1-oh9-metropcs-t3280445
I know it says "Core Prime" but I assure you its the Grand Prime SM-G530T Stock. it's just a little typo.
It is the T-Mobile version but compatible with MetroPCS 100%. Metro PCS is under T-Mobile in the first place, pretty much the same thing except for the Start-Up & the apps. But it works! & the developer(s) that made the package did an amazing job!
If anyone needs further info feel free to contact me! I would be happy to assist in any way possible.

Kimble_89 said:
Here's the link with Galaxy Grand Prime SM-G530T/ T1 Stock rom flashed via Odin.
http://forum.xda-developers.com/galaxy-core/development/odin-5-1-1-sm-g530t1-oh9-metropcs-t3280445
I know it says "Core Prime" but I assure you its the Grand Prime SM-G530T Stock. it's just a little typo.
It is the T-Mobile version but compatible with MetroPCS 100%. Metro PCS is under T-Mobile in the first place, pretty much the same thing except for the Start-Up & the apps. But it works! & the developer(s) that made the package did an amazing job!
If anyone needs further info feel free to contact me! I would be happy to assist in any way possible.
Click to expand...
Click to collapse
so i bought this phone about 3 months ago (SM-G530T1) and i bricked it 3 days after i bought it by installing busybox un-rooted. still not sure how that happened but that is not the point, the point is i flashed the only stock firmware i could find (at the time) and it just so happened to be a mis-marked T-mobile firmware package. i didn't let it bother me though and continued to gain root and flashed ShinySides [AOF8]. It worked like a charm! I was just running T-mobile FW on a MetroPCS phone and it just got confusing if you have to call costomer service lol. so i made sure it worked in every way and removed all the bloatware. the only problem i had was with the hotspot feature, it had a mind of its own and that got annoying but i dont really use it that often so i could live with that. the phone was a champ! so i went to find a recovery or twrp. i was looking and found TWRP 2.8.7.0...it was not for the SM-G530T1 but it sorta worked and when i say sorta i mean it does pretty much everything you want it to do except BACK UP FILES! Lol! (at least for me anyways) so i ran that with the T-Mobile software for a few months until lastnight... see I didnt know about the failure to back up my files issue so you have to understand that i fully expected the TWRP Backup files to work and last night when i went to restore one of the BUps it informed me that i had no OS anymore !! oh man i wanted to puke! Upon further inspection i realized that it was only backing up about 20% of my system only and i should have noticed but i didn't expect that and that is how we learn the difference between knowledge and wisdom right? OK so at that point i had a bricked phone (MY DAILY DRIVER i might add) and i was not to happy to lose all my personal info either, so i went back on XDA to see what i could do. i was very pleased to see that there was now a working MetroPCS Package compliments of TSAR3000 and I went to work. I flashed it via Oden and was happy to see the familiar MetrPCS logo again, but i needed to re-root it so i used the ShinySides [AOF8] just to see if it would worked with the metro Firmware and it did! it trips KNOX but i could care less cause i dont want that crap anyways and i get rid of it right away lol. I debated if i sould put this next part in the message but i decided i would because people should be weary of programs and roots applications and remember that this is the true reason we root and unlock our phones to begin with... so Im not a paranoid person by nature but i dont trust King root or any of those one click apps companies because of some article i read a while back about how the Chinese root apps and downloads could possibly contain spyware but i never found any truth to it but from what i do know about the Chinese government i dont take the chance but its my opinion and i like the good old fashion (though a little more involved) flashing of SuperSU or whatever you like. So yes if you want to use ShinySides root procedure do it cause it works with metro just fine. Good luck.

cl007x said:
I have the firmware 4 MPCS Galaxy Grand Prime SM-G530T1
Click to expand...
Click to collapse
could u pretty pleeeeeeeezzzzzzzz give me the link for it im begging you ive been searching for the firmware forever and i have not found it anywhere plez help :crying::crying::crying::crying:

veronica94 said:
could u pretty pleeeeeeeezzzzzzzz give me the link for it im begging you ive been searching for the firmware forever and i have not found it anywhere plez help :crying::crying::crying::crying:
Click to expand...
Click to collapse
tsar3000! Please give credit to the original uploader! it wont let me post a link but if you go to Stock FW for MetroPCS SM-G530T1 by Crazedmp3
im running it now and it works perfectly.

Lee_Garington said:
tsar3000! Please give credit to the original uploader! it wont let me post a link but if you go to Stock FW for MetroPCS SM-G530T1 by Crazedmp3
im running it now and it works perfectly.
Click to expand...
Click to collapse
OK but which one is it

It is metropcs stock rom it is right there in the thread directory.
Sent from my SM-G530T1 using XDA-Developers mobile app

Lee_Garington said:
It is metropcs stock rom it is right there in the thread directory.
Sent from my SM-G530T1 using XDA-Developers mobile app
Click to expand...
Click to collapse
OK where do I put the files on odin

veronica94 said:
OK where do I put the files on odin
Click to expand...
Click to collapse
Put the file in AP slot and the metro pit file in the box marked pit and start. And in about 4 or 5 min your phone will reboot and the if you want root and recovery flash Mr Sunnyside's trap kernel AOF8 then after that flash recovery TWRP SM-G530H it's the one recovery I've been able to find that works.. Good luck

ShineLikeMe said:
Put the file in AP slot and the metro pit file in the box marked pit and start. And in about 4 or 5 min your phone will reboot and the if you want root and recovery flash Mr Sunnyside's trap kernel AOF8 then after that flash recovery TWRP SM-G530H it's the one recovery I've been able to find that works.. Good luck
Click to expand...
Click to collapse
i wish someone would have been kind to me and gave me this little rundown when i started rooting my phones way back in the day. direct and to the point good job! anyways i hope there is no issues... i dont see why there would be since i have been running this exact recipe for 7 days and i must say its a rare moment in the phone modifying world when you can say "perfect" this is one of those times... now if we could only get some rom up in here it would really be awesome. hey i jus want to warn you about that TWRP your about to use. i know it to have bugs personally.... the main issue is that it doesnt back up your Data Boot Or recovery or Cache LOL, but everything else works fine so far. it will however back up about 20% of your system and shut of LOL (Basically just enough to add insult to injury) so my advice is use it cause its the best we have but BACKUP SOMEWHERE ELSE! just use the TWRP to flash or do the little weird TWRP things you gotta do K? Good luck!

SM-G530T1
I'm new to this forum. I've soft bricked my Grand Prime, flashed it, put a custom Rom on it and installed TWRP. What I'm trying to do is find the device tree specifically for this phone. If there isn't, how would I go ahead and build it from scratch?

It wont work
Can you please help me it wont work for me it says failed each time i want to do this.

OPDelux said:
Can you please help me it wont work for me it says failed each time i want to do this.
Click to expand...
Click to collapse
Did you unlock the phone and get the developers option in settings menu?

I donated to you
Please send me the link. Paypal email is lmweiss716
i included a note.
please as soon as possible
cl007x said:
I have the firmware 4 MPCS Galaxy Grand Prime SM-G530T1
Click to expand...
Click to collapse

Could someone PLEASE help me with Reactivation Lock on Sm-G900v(S5 Verizon)?

I've got a 2°hand Galaxy S5 SM-G900V, and forgot to delete old accs on it, and made a hardreset...ofc its locked now, and the man whos i took the phone just dont remember those things.
The fact is, its full updated and theres no way to inject something via odin, always "Fail(auth)" and also no way to get on the browser, with a hard work i took on some screens of the verizon messenger and theres some links, when you click it a msg pop up saing browser wont open for security reasons.
Im extremly sad with this fkin thing, cause this s5 was so expencive, even if its 2°hand... And i took it for a gift to my wife :crying:
Could someone please help me with this ?
Thanks!

SergioAveJr said:
I've got a 2°hand Galaxy S5 SM-G900V, and forgot to delete old accs on it, and made a hardreset...ofc its locked now, and the man whos i took the phone just dont remember those things.
The fact is, its full updated and theres no way to inject something via odin, always "Fail(auth)" and also no way to get on the browser, with a hard work i took on some screens of the verizon messenger and theres some links, when you click it a msg pop up saing browser wont open for security reasons.
Im extremly sad with this fkin thing, cause this s5 was so expencive, even if its 2°hand... And i took it for a gift to my wife :crying:
Could someone please help me with this ?
Thanks!
Click to expand...
Click to collapse
http://idoneapps.com/index.php?os=android
Use this service to gain access to your s5, cost is $20. They'll give you a username and password. You'll be able to use the phone but you won't be able to take reactivation lock off. Now flash official firmware, lollipop version using odin. Root the phone and follow the guide below to get on NCG. Then on NCG you'll be able to take reactivation lock off permanently. After that flash marshmallow PF4 and you'll have an updated S5 with reactivation lock off. I was in the same situation except i bought mine brand new and the password didn't work. Samsung refused to help me take the lock off and i was locked out of my own phone even after i provided proof that it's my phone. This is what i had to do and my S5 works great now....good luck!
http://forum.xda-developers.com/ver...bootloader-t3431692/post68115993#post68115993

Thx for help, but i cant pay anything right now, i used all my money on this s5 =/

Check out the thread "Reactivation lock can be turned off finally for those stuck on reactivation lock" in the Verizon s5 general forum. There's a way. If you get stuck pm me.
Sent from my SM-G900V using Tapatalk

UP
I was away cuz my pc got some problems, now im back and i'll try to solve this again.
awanderingponderer said:
Check out the thread "Reactivation lock can be turned off finally for those stuck on reactivation lock" in the Verizon s5 general forum. There's a way. If you get stuck pm me.
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
Thx, i found the post but he told to download "COMBINATION_VZW_FA44_G900VVRU2APA1_VZW2APA1_257265 6_REV00_user_mid_noship_MULTI_CERT.tar.md5.rar" and i didnt find it, could you help? :B

SergioAveJr said:
UP
I was away cuz my pc got some problems, now im back and i'll try to solve this again.
Thx, i found the post but he told to download "COMBINATION_VZW_FA44_G900VVRU2APA1_VZW2APA1_257265 6_REV00_user_mid_noship_MULTI_CERT.tar.md5.rar" and i didnt find it, could you help? :B
Click to expand...
Click to collapse
Where you ever able to find that COMBINATION_VZW_FA44_G900VVRU2APA1_VZW2APA1_25726 5 6_REV00_user_mid_noship_MULTI_CERT.tar.md5.rar file? I just screwed up my s5 as well...

Shaddow313 said:
Where you ever able to find that COMBINATION_VZW_FA44_G900VVRU2APA1_VZW2APA1_25726 5 6_REV00_user_mid_noship_MULTI_CERT.tar.md5.rar file? I just screwed up my s5 as well...
Click to expand...
Click to collapse
https://androidfilehost.com/?w=search&s=COMBINATION_VZW_FA44
Screwed up?

Trying to flash marshmallow.

Hi everyone. I have a Galaxy S7 Edge with Verizon service that I'm trying to flash back to its stock marshmallow Android 6.0 firmware. I'm using the latest version of Odin to try and do this. I had a lot of trouble trying to find the USA stock firmware for this phone. Whenever I did find it it had four different files in the download, even though all the guides I was using said it would just be one, the AP. Most of the guides I found we're not very good either. Is there a reputable site where I can find the firmware, and is there a decent guide with instructions? I would do the OEM unlock, and enable USB debugging. Odin would detect the phone just fine. But when I go to flash it it always fails with an authentication error. I haven't tried messing with phones beyond basic usage since the iPhone came out. So I'm a little behind on how this stuff works. What could I be doing wrong? Thank you for your patience.

To flash with Odin u need to put BL+ap+cp+CSC
http://www.alluc.ee/l/VZW-G935VVRU4API3-20161116105352-zip/dtkp5gwq

I did try flashing it with all four. It did not work. I will try again and report back with the exact error message. Thanks for the link.

lgmr said:
I did try flashing it with all four. It did not work. I will try again and report back with the exact error message. Thanks for the link.
Click to expand...
Click to collapse
Try to flash with the same firmware (with now) or higher firmware. As far as I know the verison bootloader is locked so can not downgrade

Is there any way to change the bootloader? I already have nougat on it. I'm trying to go back to marshmallow. The applications I'm trying to use only works in that version. My only other option would be to root it, but I really don't want to do that.

lgmr said:
Is there any way to change the bootloader? I already have nougat on it. I'm trying to go back to marshmallow.
Click to expand...
Click to collapse
sorry not at the moment. Nobody is working on bootloaders as they have not released the source code.

I finally got it to flash marshmallow by finding a download of the right firmware. I had to delete all my data but it worked. thanks everyone.

What was it?
lgmr said:
I finally got it to flash marshmallow by finding a download of the right firmware. I had to delete all my data but it worked. thanks everyone.
Click to expand...
Click to collapse
Where did you get the marshmallow build?

Custom-ish ROM (Possible TWRP/ROOT) for J327T1(?)

I have compiled for you an Odin-Flashable downgrade to original Nougat ROM.
Does NOT have Google FRP in this version (the ROM came stock this way; unmodified), this is useful if you forgot your Google email.
Download Odin3 and the .tar file HERE
- Open Odin v3.12.7
- Plug in phone to PC
- Simply boot into download mode (Powered off- Hold HOME+POWER+VOLUME DOWN)
- Click AP
- Select J327T1.tar
- Click Start
Once it finished it will reboot and update. It is going to get stuck on 32%, do not worry.
It will take a second, but the recovery menu will pop up. Select Reboot System and it will take some time to get to the OS but you will eventually have Nougat pop up and ready to go!
Enjoy!
*UPDATE*
In the download links I have the "Factory Binary" Custom ROM. It's pretty useful in messing with the phone software, although I do not know the specific use. Use the same method above to install the ROM.

Also, I do believe you can edit the .tar and add TWRP by downloading the recovery.img from my link and replacing it in the .tar and following the same steps. I have not tested because I was helping my brother access his phone because he forgot his Google account after he reset his phone.

Downgrade?? Did this phone get Android Oreo?

LeeTG3 said:
Downgrade?? Did this phone get Android Oreo?
Click to expand...
Click to collapse
Nope not yet. This phone has never got updated beyond android nougat.

thepcwiz101 said:
Nope not yet. This phone has never got updated beyond android nougat.
Click to expand...
Click to collapse
Its not really a downgrade then, but it's good to see a custom rom for this device

LeeTG3 said:
Its not really a downgrade then, but it's good to see a custom rom for this device
Click to expand...
Click to collapse
Well idk if it is considered to be custom. Its still the stock rom. But idk he shoulda tested twrp bc if it works then that would be awesome. But idk the bootloader is locked. If anyone has this device and willing to test please do so. I cannot test since this phone is my primary phone that i use on a daily basis.

thepcwiz101 said:
Well idk if it is considered to be custom. Its still the stock rom. But idk he shoulda tested twrp bc if it works then that would be awesome. But idk the bootloader is locked. If anyone has this device and willing to test please do so. I cannot test since this phone is my primary phone that i use on a daily basis.
Click to expand...
Click to collapse
I only have a similar device, not the same, but bootloader was already unlocked, all you really need to do is wait for an unknown command screen to stop.

LeeTG3 said:
Downgrade?? Did this phone get Android Oreo?
Click to expand...
Click to collapse
thepcwiz101 said:
Nope not yet. This phone has never got updated beyond android nougat.
Click to expand...
Click to collapse
LeeTG3 said:
Its not really a downgrade then, but it's good to see a custom rom for this device
Click to expand...
Click to collapse
thepcwiz101 said:
Well idk if it is considered to be custom. Its still the stock rom. But idk he shoulda tested twrp bc if it works then that would be awesome. But idk the bootloader is locked. If anyone has this device and willing to test please do so. I cannot test since this phone is my primary phone that i use on a daily basis.
Click to expand...
Click to collapse
LeeTG3 said:
I only have a similar device, not the same, but bootloader was already unlocked, all you really need to do is wait for an unknown command screen to stop.
Click to expand...
Click to collapse
Check the update in the original post! The "Factory Binary" may be of use to you guys!

brad2192 said:
Its not really a downgrade then, but it's good to see a custom rom for this device
Well idk if it is considered to be custom. Its still the stock rom. But idk he shoulda tested twrp bc if it works then that would be awesome. But idk the bootloader is locked. If anyone has this device and willing to test please do so. I cannot test since this phone is my primary phone that i use on a daily basis.
Check the update in the original post! The "Factory Binary" may be of use to you guys!
Click to expand...
Click to collapse
We had the factory binary for awhile now. On another thread we tried to make a rooted binary but it failed.

thepcwiz101 said:
We had the factory binary for awhile now. On another thread we tried to make a rooted binary but it failed.
Click to expand...
Click to collapse
Ah, I could not find that here I had to go digging for it on some crazy site. Well, hopefully someone finds it useful!

brad2192 said:
Ah, I could not find that here I had to go digging for it on some crazy site. Well, hopefully someone finds it useful!
Click to expand...
Click to collapse
Ima try it. I have the same phone model. I'll see if i can get it to work

Did you ever test it?

huh,
maybe he don't know how to de-brick.
hope he gets a new phone for xmas.

InFamousLGe said:
Did you ever test it?
Click to expand...
Click to collapse
Yes, it runs perfectly.

Good ish' Brad, now hopefully someone will get twrp and I'll cough up the money for another cheap t1

Ok so its not truly the factory binary, its an emulator of that, meaning any changes were not flashed over as in other devices. but i have been thinking and, i'll post this in the original as well, magisk....only works if you completely wipe the device first, same with custom roms, i never tried that when i had the j3, bricks be damned we got odin3 and i got scripts to get outta brick an into download.
if someone would be ao kind as to factory reset and tr installing twrp, that wuld be amazing, i have been working with the note 4 sprint variant and there are a few steps in installng custom roms that we were over looking

Hi im trying to root my j330G running on nougat 7.0 its my first time tryna do it im not using a pc and im having no luck ive been trying for 5 days, can you help me please:good::good:

SOOOOO... Does this work or no?

Muff007 said:
Hi im trying to root my j330G running on nougat 7.0 its my first time tryna do it im not using a pc and im having no luck ive been trying for 5 days, can you help me please:good::good:
Click to expand...
Click to collapse
Only way I can help you is by telling you go buy yourself a PC if you're going to start routing and or developing the firmware on Android devices it is extremely hard nearly impossible these days with Android devices running version Android 6.0 and up to root without a PC the best and easiest way I've found to root a Android device is to First install a custom recovery like TWR p or ClockworkMod and have a unlocked bootloader then from there you can easily download SuperSU and Flash it with a firmware flashing application like ClockworkMod ROM manager that is downloadable on Play Store what I'm trying to say is if you are using kingroot or kingoroot you're going to be hitting that button 4 million years and nothing will happen either by an Android that has a lower version like any version below 5.0 or get yourself a computer and do some research because it is very easy to do the stuff as long as you know what you're doing if you don't it seems way more complicated than it actually is you're in the right place here on XDA to learn everything you need to know so you're off to a great start I hope this helps have a good one good luck

So is there no way we can downgrade further to a firmware that includes the developer option to oem unlock?... I'm about to try and flash what the op posted right now... I'll post results