Database Users

"Warning: No file_contexts"

Does anyone know what's the cause of this? I built Omni yesterday and it was fine, but I tried to flash another one I built today and that's what it tells me followed by the phone getting stuck during the bootanimation when the logo turns fully green. And, the thing is that I checked the zip and there is a file_contexts.

rickoslyder said:
Does anyone know what's the cause of this? I built Omni yesterday and it was fine, but I tried to flash another one I built today and that's what it tells me followed by the phone getting stuck during the bootanimation when the logo turns fully green. And, the thing is that I checked the zip and there is a file_contexts.
Click to expand...
Click to collapse
The file_context warning has nothing to do with you not being able to build. See if you can get a logcat to see what is going on.
Sent from my Xperia T using Tapatalk

scanno said:
The file_context warning has nothing to do with you not being able to build. See if you can get a logcat to see what is going on.
Sent from my Xperia T using Tapatalk
Click to expand...
Click to collapse
No no, you misunderstood. I can build fine, but I can't boot.

I saw the same warning, with no apparent ill effect, on these I just flashed:
omni-4.3.0-20131020-i9300-HOMEMADE
omni-4.3.0-20131022-m7ul-HOMEMADE
HTC One and GS3 seem to be running fine.

rickoslyder said:
No no, you misunderstood. I can build fine, but I can't boot.
Click to expand...
Click to collapse
Sorry that was a typo, I ment boot (auto correct is a pain sometimes).
But getting a logcat (if you get that far in the boot process) can help in diagnosing the problem.
Sent from my Nexus 10 using Tapatalk 4

scanno said:
Sorry that was a typo, I ment boot (auto correct is a pain sometimes).
But getting a logcat (if you get that far in the boot process) can help in diagnosing the problem.
Sent from my Nexus 10 using Tapatalk 4
Click to expand...
Click to collapse
Doesn't let me logcat. I'm gonna download Rebellos's Omni and see if that boots, probably should have done that first thing now that I think about it..

rickoslyder said:
Doesn't let me logcat. I'm gonna download Rebellos's Omni and see if that boots, probably should have done that first thing now that I think about it..
Click to expand...
Click to collapse
Hmm works with Rebellos's zip..

*sighs* Resynced and rebuilt today and it's booting first time. Don't know what changed but mods, you can lock/delete this now.

I got this trying to do adb push to a Nexus 4 and the ROM will not flash...

nvm missunderstood.

gleggie said:
I got this trying to do adb push to a Nexus 4 and the ROM will not flash...
Click to expand...
Click to collapse
Wiping data and system seems to be what made it work for me.

[NO file_context ] problem with OmniRom 4.4.2
my phone is N7000 .. and i downloaded omnirom 4.4.2 from the site and paste it into the sd ,, when i make a flash to this rom .. a message appear to me
WARNING : no file_context
plz help me :-/

I think its the issue of that particular nightly build. I too had the same experience. So I flashed with another nightly and it works fine. After this error I changed to stock ROM but the flash counter didn't reset to 0. I tried to flash 3 times and now the counter is showing as 3. Can anyone advise me to reset it
Sent from my GT-I9100 using XDA Premium 4 mobile app

I got the same warning in recovery what does it mean?

Ronii10 said:
I got the same warning in recovery what does it mean?
Click to expand...
Click to collapse
My guess would be vastly outdated recovery but who knows.

Okay how do i update?

help
i am using system extractor and repacking, but it saids needed file_contexts. i dont know is the one in the rom zip or i need to make a new one?

[Q] cant unbirck help please

so my friend download an app and didn't read anything about it before he installed the app. The app was suppose to replace the home launcher but he was suppose to install another app before he installed it but he didn't. I have tried Odin, Kies, and Heimdall with no luck. I have tried them on different computers and with different cables. His phone is a SGH-I337, yes it is rooted but only for one app that was installed that doesn't affect anything. But now it only go to the download screen with the android man even when booted up normally it only fails the [auth] on Odin and it wouldn't even connect to Kies. Any help would be GREAT, he is only giving me 2 day to try and fix it for him then he is going to buy a new phone. Thanks in advance EVEN IF ITS JUST GUESS I'll still give it a try.

What app did you try to install and what firmware are you on. Odin should work if you use the right firmware.
Sent from my Nexus 5

If the phone is running either the MK2 or MF3 baseband then my thread here may be able to help you. Check ted77usa's post (the last reply on the first page) for how I fixed my phone.

jd1639 said:
What app did you try to install and what firmware are you on. Odin should work if you use the right firmware.
Sent from my Nexus 5
Click to expand...
Click to collapse
I dont remember what app he tried to install, only that it was suppose to change his home screen. As far as what firnware he is on I have no clue cause I have no way to find out and he is no help hell he doesnt know the his ass from a hole in the ground when i ask him.

joshuadrivin said:
I dont remember what app he tried to install, only that it was suppose to change his home screen. As far as what firnware he is on I have no clue cause I have no way to find out and he is no help hell he doesnt know the his ass from a hole in the ground when i ask him.
Click to expand...
Click to collapse
I would start with the mf3 tar files in odin. If they don't work try the mk2 tar file
Sent from my Nexus 5

JTrocks said:
If the phone is running either the MK2 or MF3 baseband then my thread here may be able to help you. Check ted77usa's post (the last reply on the first page) for how I fixed my phone.
Click to expand...
Click to collapse
thanks im downloading his files now but im at a crappy hotel so its going to take over an hour ill let u know how it goes, u never know u couldve just saved him $200 :highfive:

jd1639 said:
I would start with the mf3 tar files in odin. If they don't work try the mk2 tar file
Sent from my Nexus 5
Click to expand...
Click to collapse
correct me if I'm but cant i just run the mk2 no matter what firmware he is on, doesnt it supersede the others

joshuadrivin said:
correct me if I'm but cant i just run the mk2 no matter what firmware he is on, doesnt it supersede the others
Click to expand...
Click to collapse
Yes, but he'll have less options in flashing roms if he's interested in that. Otherwise just flash the mk2
Sent from my Nexus 5

jd1639 said:
Yes, but he'll have less options in flashing roms if he's interested in that. Otherwise just flash the mk2
Sent from my Nexus 5
Click to expand...
Click to collapse
he not like me, he doesnt flash roms. im hoping the file JTrocks posed about will finally work on his phone cause so far i have tried 5 others and they all fail in the same spot, i dont know if it has anything to do with the fact that his phone has best buys security on it

joshuadrivin said:
he not like me, he doesnt flash roms. im hoping the file JTrocks posed about will finally work on his phone cause so far i have tried 5 others and they all fail in the same spot, i dont know if it has anything to do with the fact that his phone has best buys security on it
Click to expand...
Click to collapse
Never heard of best buys security. Worst comes to worse you could take it to a best buy with a Samsung experience and they can flash it.
Sent from my Nexus 5

jd1639 said:
Never heard of best buys security. Worst comes to worse you could take it to a best buy with a Samsung experience and they can flash it.
Sent from my Nexus 5
Click to expand...
Click to collapse
I actually tried that and they couldnt fix it surprisingly

joshuadrivin said:
I actually tried that and they couldnt fix it surprisingly
Click to expand...
Click to collapse
That's not a good sign.
Sent from my Nexus 5

JTrocks said:
If the phone is running either the MK2 or MF3 baseband then my thread here may be able to help you. Check ted77usa's post (the last reply on the first page) for how I fixed my phone.
Click to expand...
Click to collapse
It worked like a charm thank you sir, i ended up fixing his phone just in time for breakfest so thanks to you i get free food this morning :laugh: but really thanks alot!!!!!!!!!!!

Glad you got it working
Sent from my Nexus 5

jd1639 said:
Glad you got it working
Sent from my Nexus 5
Click to expand...
Click to collapse
thanks and if i end up seeing someone else with that best buy security ill post it on hear and tag you so you will know what i was talking about

joshuadrivin said:
It worked like a charm thank you sir, i ended up fixing his phone just in time for breakfest so thanks to you i get free food this morning :laugh: but really thanks alot!!!!!!!!!!!
Click to expand...
Click to collapse
@joshuadrivin Glad that u fixed your friend phone on time for breakfast.....:good:.....u know why? i can see that u got a lot of help in here. @jd1639 saw your sig NEXUS 5 now? are u still have your S4? @JTrocks great job on giving good direction ......:good::good:

KitKat on Samsung Galaxy Light (T-Mobile Version)

So I've been getting kind of angry that T-Mobile hasn't updated the phone to KitKat and I tried something on my own. Flashing the MetroPCS KitKat software version on my device via Odin. Guess what? It worked. The only thing was that after it updated all the apps, it installed some MetroPCS bloatware. I don't mind that but this is awesome that I was actually able to install the SGH-T399N software on the SGH-T399. Try it for yourself and let me know how it went for you.

brandonbun56 said:
So I've been getting kind of angry that T-Mobile hasn't updated the phone to KitKat and I tried something on my own. Flashing the MetroPCS KitKat software version on my device via Odin. Guess what? It worked. The only thing was that after it updated all the apps, it installed some MetroPCS bloatware. I don't mind that but this is awesome that I was actually able to install the SGH-T399N software on the SGH-T399. Try it for yourself and let me know how it went for you.
Click to expand...
Click to collapse
check this out.http://androidforums.com/threads/up...ht-t399n-metro-pcs-stock-kitkat-4-4-2.894332/

rubberman365 said:
check this out.http://androidforums.com/threads/up...ht-t399n-metro-pcs-stock-kitkat-4-4-2.894332/
Click to expand...
Click to collapse
Yeah I'm pretty sure that would brick my phone since that's for the SGH-T399N. I have the SGH-T399. Oh and BTW I know they are both pretty much the same, but if I were to flash that, it would probably screw up.

brandonbun56 said:
Yeah I'm pretty sure that would brick my phone since that's for the SGH-T399N. I have the SGH-T399. Oh and BTW I know they are both pretty much the same, but if I were to flash that, it would probably screw up.
Click to expand...
Click to collapse
I did it with no problems u just need to flash a different radio modem

rubberman365 said:
I did it with no problems u just need to flash a different radio modem
Click to expand...
Click to collapse
So does this work with no issues? Also, how would I come across the t mobile radio to flash it and how do I flash it?

Koohara947 said:
So does this work with no issues? Also, how would I come across the t mobile radio to flash it and how do I flash it?
Click to expand...
Click to collapse
Well the phone still has random reboots which is problem with phone im sure. But u root and flash twrp recovery and everything else is flashed in twrp then.

rubberman365 said:
Well the phone still has random reboots which is problem with phone im sure. But u root and flash twrp recovery and everything else is flashed in twrp then.
Click to expand...
Click to collapse
Rubberman: Where do you get the tmobile radio to flash??????

That's what I wanted to know. ?

Right here
http://forum.xda-developers.com/android/help/qa-lightwave-v3-t2904537/page3

I'm working on some Roms for tHis phone. I've already made a stock odexed and deodexed flashabke zips for basic development modding and working on a debl poo acted stock Nodded version for release. If anyone Needs anything for the . Metro t399n... gonna show this device some love.

X
xx

I bet you can port KK to this if you have a stock rom and metro's stock rom with Kitchen.
I have a stock rom zip here:https://www.androidfilehost.com/?fid=24052804347774930
there's a metro KK stock rom zip you can google it.
I think there's a storage mount file you need for kitchen, I wrote one if you need it just ask (i have it in my linux partition, which I'm not on now).
Oh and always have a backup.

X
xx

sickaf_a said:
Hey man do you know if I will be able to flash to MetroPCS rom and then root it while its on the ROM? I really want to buy this phone. Also is this phone worth $75 because this how much someone is selling it to me almost new. Metro PCS doesn't have it anymore :crying:
Click to expand...
Click to collapse
If you don't see enough development for this phone now and don't want to wait, then don't buy it. Don't flash something not made for your phone unless you have a backup.
Other than that the phone has a well balanced spec sheet for the price.

X
xx

sickaf_a said:
Hey man do you know if I will be able to flash to MetroPCS rom and then root it while its on the ROM? I really want to buy this phone. Also is this phone worth $75 because this how much someone is selling it to me almost new. Metro PCS doesn't have it anymore :crying:
Click to expand...
Click to collapse
There is already a rooted debloated metro pcs 4.4 kk rom. I put it on sons tmo galaxy light.

rubberman365 said:
There is already a rooted debloated metro pcs 4.4 kk rom. I put it on sons tmo galaxy light.
Click to expand...
Click to collapse
How is the MetroPCS 4.4 KK rom working out on the T-Mobile Galaxy Light?

blashrrt said:
How is the MetroPCS 4.4 KK rom working out on the T-Mobile Galaxy Light?
Click to expand...
Click to collapse
Its working great!
Sent from my LG-E980 using XDA Free mobile app

Are there any bugs?
Sent from my SCH-I500 using Tapatalk

No everything works.
Sent from my ATRIX HD using XDA Free mobile app

[Req] Req TWRP for SM-A700F - lollipop 5.0.2 Please!!!!

Please req TWRP for SM-A700F lollipo 5.0.2 :laugh::laugh::laugh::laugh::laugh::laugh::laugh::laugh:
Thanks All

nino64 said:
Please req TWRP for SM-A700F lollipo 5.0.2 :laugh::laugh::laugh::laugh::laugh::laugh::laugh::laugh:
Thanks All
Click to expand...
Click to collapse
It's really weird that the main A7 model gets 0 to none attention . I hope someone will notice . Thanks for the post though

Bump for this!
We really need a recovery for A700F, we already have root thanks to ShinySide, but without Recovery there's no chance for custom ROMS.
I would have developed/ported it by myself but I haven't found any guide how to do it and I don't have the sufficient knowledge.

amitb96 said:
Bump for this!
We really need a recovery for A700F, we already have root thanks to ShinySide, but without Recovery there's no chance for custom ROMS.
I would have developed/ported it by myself but I haven't found any guide how to do it and I don't have the sufficient knowledge.
Click to expand...
Click to collapse
Well i could have done it too( I have a bit of knowledge ) but I'm in the last year of senior high-school and in struggling with time :/ If I want to go to the University I should stay focused, else I'd do it for sure. I just hope that someone will notice us and give us some attention

amitb96 said:
Bump for this!
We really need a recovery for A700F, we already have root thanks to ShinySide, but without Recovery there's no chance for custom ROMS.
I would have developed/ported it by myself but I haven't found any guide how to do it and I don't have the sufficient knowledge.
Click to expand...
Click to collapse
You're wrong, as long as you have root you can install custom roms with Flashfire, in fact it does most things a custom recovery can including backups.
If I get time I'll knock up a build of twrp.
What build is this device running at the moment, is it bootloader unlocked and is it Exynos or qualcomm?
I require someone to upload their recovery.img from the stock firmware.
Note: I don't have this device so a decent tester is required who doesn't mess about.

ashyx said:
You're wrong, as long as you have root you can install custom roms with Flashfire, in fact it does most things a custom recovery can including backups.
If I get time I'll knock up a build of twrp.
What build is this device running at the moment, is it bootloader unlocked and is it Exynos or qualcomm?
I require someone to upload their recovery.img from the stock firmware.
Note: I don't have this device so a decent tester is required who doesn't mess about.
Click to expand...
Click to collapse
On my way to do this just a sec
I'm sure about the exynos part and I think that the bootloader is also unlocked I'll post the recovery.img in a sec
Sent from my spaceship

there you go
recovery.img extracted from this firmware A700FXXU2BOG1_A700FXEF2BOG3_A700FXXU2BOG1
I can be your tester also

XperiaNoobie said:
recovery.img extracted from this firmware A700FXXU2BOG1_A700FXEF2BOG3_A700FXXU2BOG1
I can be your tester also
Click to expand...
Click to collapse
Good stuff, will come back with a build soon.
I take it that build is LL?

ashyx said:
Good stuff, will come back with a build soon.
I take it that build is LL?
Click to expand...
Click to collapse
Yes it is sir

XperiaNoobie said:
Yes it is sir
Click to expand...
Click to collapse
Test 1, this is a quick test port from an older version of twrp, it may or may not boot on lollipop firmware
flash with odin:
https://www.androidfilehost.com/?fid=24052804347831298
Stock recovery:
https://www.androidfilehost.com/?fid=24052804347831301
If it doesn't boot take note of what happens, blank screen, bootloop etc

ashyx said:
Test 1, this is a quick test port from an older version of twrp, it may or may not boot on lollipop firmware
flash with odin:
https://www.androidfilehost.com/?fid=24052804347831298
Stock recovery:
https://www.androidfilehost.com/?fid=24052804347831301
If it doesn't boot take note of what happens, blank screen, bootloop etc
Click to expand...
Click to collapse
No access to the file:/

XperiaNoobie said:
No access to the file:/
Click to expand...
Click to collapse
Fixed, sorry.

ashyx said:
Fixed, sorry.
Click to expand...
Click to collapse
Yo i flashed it , opened 1st time no prob , its just that it is taking only like 1/3 of the screen .

XperiaNoobie said:
Yo i flashed it , opened 1st time no prob , its just that it is taking only like 1/3 of the screen .
Click to expand...
Click to collapse
Thats not a problem I just need to adjust the resolution.
It works OK apart from that, backups etc?
Can you check adb works. Load ADB, Connect your device and type ADB DEVICES. See if your device is detected.
What's your time zone? I'm UK so it's around 1.00pm now, won't be home until 7pm ish.
Will you be available for more testing?

ashyx said:
Thats not a problem I just need to adjust the resolution.
It works OK apart from that, backups etc?
Can you check adb works. Load ADB, Connect your device and type ADB DEVICES. See if your device is detected.
What's your time zone? I'm UK so it's around 1.00pm now, won't be home until 7pm ish.
Will you be available for more testing?
Click to expand...
Click to collapse
So i am sitting at around 3:22 pm on Athens time-zone and the unfortunate thing is that i will be leaving home by 7pm and be returning by 10:30pm (School stuff :/ ) so we can work after i am home ,that'd be around 8:30 for your time-zone. Everything seems usable , I am installing as i am typing, the adb services along with SDK. Will update when i get it up and running. Cheers

ashyx said:
Thats not a problem I just need to adjust the resolution.
It works OK apart from that, backups etc?
Can you check adb works. Load ADB, Connect your device and type ADB DEVICES. See if your device is detected.
What's your time zone? I'm UK so it's around 1.00pm now, won't be home until 7pm ish.
Will you be available for more testing?
Click to expand...
Click to collapse
So does that mean it is working or what ? Also should i proceed with deodexing my rom or should i wait for further testing and stuff?

XperiaNoobie said:
So does that mean it is working or what ? Also should i proceed with deodexing my rom or should i wait for further testing and stuff?
Click to expand...
Click to collapse
Perfect, that's what you should see.
Go ahead with your mods just make sure your backup works first.
Will post up another build later to test with the resolution fix.

ashyx said:
Perfect, that's what you should see.
Go ahead with your mods just make sure your backup works first.
Will post up another build later to test with the resolution fix.
Click to expand...
Click to collapse
so i will also test your build later at night when you fix it thanks dude you are really cool

XperiaNoobie said:
so i will also test your build later at night when you fix it thanks dude you are really cool
Click to expand...
Click to collapse
No worries, I was just passing through looking for some info on a project and saw a few posts like this come up. Don't like to see development stalled so thought I'd help you guys out.

XperiaNoobie said:
so i will also test your build later at night when you fix it thanks dude you are really cool
Click to expand...
Click to collapse
This build is the latest TWRP 2.8.7.0. I have also built it with the new TWRP stock theme. Hopefully resolution issue is fixed for this one.
https://www.mediafire.com/?q9susauds4wv8uw

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:
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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