yashsingh1/xdaforums huggingface dataset:
[Sprint LG G4] SD2014:
Hey guys. I tried this after I flashed my phone using the zv5 tot in another thread on this forum. The phone's sim worked for a short time (a couple hours?? I could browse without wifi but didn't test for calls). It seemed to reset itself and I've tried to use the above process but to no avail. I've noticed that the node.db file keeps changing to rw-r--w-- even after repeated attempts. Not sure if it's only this file that has changed or if a bigger problem exists. Your input would be appreciated!
[Sprint LG G4] mayrer:
You did paragraphs 7) and 8) ?
[Sprint LG G4] mayrer:
Try different file manager.
[Sprint LG G4] SD2014:
Yep. Even did the bonus step :) But yes, definitely followed the steps correctly

---------- Post added at 04:27 PM ---------- Previous post was at 04:11 PM ----------

Used ES file explorer before. Per your advice installed Total Commander. The file stays at rwrr now (thanks!). Phone still not sim unlocked, though

Edit: to be clear, when I first tried this, the node file stayed at rwrr. It was only later after the phone "reset" itself (not sure what else to call it) that it changed to rwrw

Edit 2: wait, spoke too soon. I went to settings and changed the network mode from "global" to "gsm/umts" and the node file went back to rwrw
[Sprint LG G4] SD2014:
In order to do a "clean" unlock using the steps above, I reflashed and rerooted my phone

http://xdaforums.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848

(http://xdaforums.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765)

After searching for how to disable OTA updates on my sprint lg g4, BEFORE I implemented your steps, I found that the uicc was locked in system updates, so gsm couldn't be used. After going through the steps above AND also blocking ota with debloater, I get the message "Unfortunately, Settings has stopped" when trying to acces system updates.

Has anyone else found this? Is this supposed to happen to get the sim unlock, mayrer?

Still getting "invalid sim" at boot :( :crying:
[Sprint LG G4] mayrer:
This should not have happened...

You are the first who have problems.Do everything exactly according to instructions.

I recommended root explorer.
[Sprint LG G4] SD2014:
It shouldn't have happened but it did. I followed the directions exactly. No deviations

---------- Post added at 05:22 PM ---------- Previous post was at 05:13 PM ----------

Is there anyone else who has tried this method who has a carrier-locked lg g4 ls991 (Sprint variation from the US)? This seems to be one of those phones in which developers are having a hard time.
[Sprint LG G4] mayrer:
this guide has helped about 10 people.

look at the problem in your device
[Sprint LG G4] SD2014:
I'm not saying that there's a problem with your guide. I'm saying that I followed the instructions exactly as you wrote them. If you can direct me to another area to focus on in my device, I'll be happy to do so. The file manager didn't seem to be the problem. Other ideas?

By the way, I do appreciate your assistance!
[Sprint LG G4] synt3k:
Excuse my ignorance, but which networks can the Sprint G4 work on once it has been SIM unlocked?
[Sprint LG G4] mayrer:
no ideas right now, I will think.
[Sprint LG G4] mayrer:
I dont know. I'm from Europe.

You can try, but first save the contents of your folder carrier.
[Sprint LG G4] synt3k:
I was just curious if it had the radios/antennas/ability to use GSM networks, or if it's just unlocked to CDMA networks.
[Sprint LG G4] mayrer:
This unlock gsm. Cdma is not locked and and can easily be programmed cdma workshop or dfs.

I use gsm and cdma.
[Sprint LG G4] TheMadScientist:
Now i dont want to piss you off or anything again i did thank you the guide worked to unlock my device. And i know about 7 outa 10 times pekple dont read and then they point blame quick bit i did follow the guides and couldnt get data to work properly and the build prop edits are what it took. U may look into it and find it does help again everydevice is different when it comes to software mods

Last night i lgflashtooled 2 times and the first k had to reroot and u lock again 2ncd time the unlocm stayed even through tot flash which is highly unusual
[Sprint LG G4] lord dredd:
will be waiting eagerly

just for the info if it matters

i am not in the US at this point
[Sprint LG G4] mayrer:
I use ls991 in Europe.
[Sprint LG G4] lord dredd:
in the mean time could you plz share the origonal files of the carrier folder as well as the original apn config file

i didnt back em up so just wish to replace with the stock ones

Thanks

BTW i repeated the manual process again today no luck
[Sprint LG G4] TheMadScientist:
Hey i dont have the orig files but i did now mutiple times ive used his guide sometime tool 1 works sometimes 2 works but the build prop edit works after u apply his tool i did the unlock number 1 and i did the disable ota. But the apn i left alone and fixed it through the prop edit. the build prop edit i metiond and swith radio to gsm wcdma auto and restart and invalid sim went away a few times now and got signal once build prop is set to open you can also edit apns
[Sprint LG G4] mayrer:
Update tool.

See in first post
[Sprint LG G4] lord dredd:
Thanks for the xtra efforts mate

but unfortunately it didnt work even this time still INVALID SIM :(

i did all the automated commands

strangely the whole carrier folder came out to be empty this time there was no apps folder and not anything else

i feel you kindly share the original carriers folder with me along with the original stock apn file , i ll replace them and chnage permissions accordingly

after that i guess i may ned to go back to pure rooted stock and strat from scerath

My phone is working fine on cdma at the moment, also 10 days back i had bricked my g3 so dont wish to do too much too soon here :P

Thanks

---------- Post added at 01:18 AM ---------- Previous post was at 01:03 AM ----------

mate could you may be write your process as a guide step by step

see Meyer has been doing his best but it seems may be my phone is a bit diff

no matter whaich set of carrier files i ma using the INVALID sim prompt is still there.

so first i need to get my phone to recognise gsm sim cards

secondly i have nt had any screen till date where one can edit the apns , so all in all both the things seem to be blocked in my phone

Kindly add your steps as well

Thanks
[Sprint LG G4] TheMadScientist:
I will when i get off work ill retrace all my steps and try again and guide my method out if its ok with maryher to use his methods also

---------- Post added at 04:53 PM ---------- Previous post was at 04:12 PM ----------

so what I did I personally used v1 of the tool v2 worked once I did steps 1 and 4 only none of the apn steps with the unlock script.

then after that I installed rom toolbox I have pro version I don't know if any other build prop editors will work and sometimes it take a couple tries with rom tool box build prop edr.

ro.build.target_operator switch from sprint to open don't reboot yet

then go to

ro.itson make sure its false

. then reboot\

in mobible networks u can select radios which should all be open due to carrier prop being open I selected gsm/wcdma/lte auto

then reboot this is my invalid sim went away. i had to switch throught the radio setting before it dissapeared

and also was able to enter apns. I'm on net 10. using att.s apns and straight talks apns came up automaticly I had to enter net10s apn manually from apm menu in settings.

I'm not good at guide just doing. hope I could help any one out if I do thank me and mayher for orig method on unlock this wouldn't be possible without him
[Sprint LG G4] lord dredd:
Thanks much mate

all i had to do was chnage SPR to OPEN in build prop and viola tethering menu appeared plus various network selection modes also appeard

gsm worked flawlessly.

BUT

as at this point for a few more weeks i have to use a cdma connection so when i inserted cdma sim

though it was working but somehow it was not showing the signal bars ( service was there data was there but due to operator being OPEN signal bars went away

so i had to change that back to SPR , too bad that took away the tethering options too.

But now i know what to do so i ll find a way to have a seamless cdma and gsm network change after just a sim swap without losing tethring and apn and all

again thanks a lot to you as wll as my man mayrer !!!
[Sprint LG G4] TheMadScientist:
No prob man i had a sprint g2 that was a pain to unlock when it come out and that was one of the issues with it too.

Imy att g3 i had to change i had att branded on my notif bar and switching to open basicly changes all the internals settings to a flobal default

---------- Post added at 03:41 PM ---------- Previous post was at 03:35 PM ----------

Hey it seems i have found the problem with invalid sim fix if you want to incorperate it in your guid or script. Just make sure credits due

The fix it switching ro.carrier from sprint to open and then selecting gsm wcdma lte auto and adter they run steps 1 and 4 of your guide they can manually fix apn from inside android.
[Sprint LG G4] mayrer:
This process was still on g2, but then CDMA is not working correctly.
[Sprint LG G4] TheMadScientist:
In cases like mine cmda wont be used ever again. And on g2 u couldnt just switch to open system.ui force closed all the time
[Sprint LG G4] lord dredd:
@ Mayrere i do feel there should be one extra step here , be it before running the tool or after is upto you wise folks to decide

but buildprop edit , it looks is a must at least in my case it proved to be :)

@ TheMadScientist420 : i did this on my g2 as well back then with a few other tricks so yep it seems it aint new

nonetheless awesome help both of you great guys

lets help the community and get over some small issues ;)

God bless
[Sprint LG G4] TheMadScientist:
See on my g2 i couldnt do the build prop edit i got the force close issue i had to flash justins rom then switched to cloudy. But i personly never got the prop edit to work rite. I never claim to be a deceloper nowhere i just try to help people oit with similar situations that ive been in. This damn phone is a whole new ball game. Im trying to figure out how they made a rooted signed rom. I would like to put together a gsm unlocked only rom.
[Sprint LG G4] lord dredd:
I think I saw a rooted international rom on the development section, I believe that's should do if you are looking to find a pure gsm rom.
[Sprint LG G4] mayrer:
TEST2. Test new folder carrier, apn setting unblocked after downgrade and back roaming setting in setting +fix crash phone when you switching network mode..try this.
[Sprint LG G4] lord dredd:
Well this option does a lot but still INVALID sim

what it does is

The only thing useful to me : It unlocks tethering options ( need to check what has done that )

.. you have added custom boot animation which states UNLOCKED by Mayrer

.. It has reset my home screen

.. It has added quite a few apps on its own , i guess thats not supposed to happen

it has added

Lookout security

smart contacts

smart notice

visual voicemail

messenger

facebook

and i guess a couple more

But it doesnt do what it was supposed to :( UNLOCK GSM and remove the INVALID SIM

I had to reverty to my earlier carrier folder to get rid of that animation , those unneeded apps

But it has also killed those unlocked tethering options :(
[Sprint LG G4] lavero.burgos:
Hello, i got this phone from a friend to sim unlock it. Problem is the phone is on LS991ZVA software version (That's MM 6.0) and i don't know if it's safe to downgrade to ZV6 to be able to unlock this phone. I would like to know if it is possible to unlock this phone in the conditions mentioned.

Thanks in advance for any help you can give.
[Sprint LG G4] mayrer:
No, need root.
[Sprint LG G4] lavero.burgos:
Thanks but I wanted to know if its safe to downgrade from ZVA to ZV6 in order to then follow your instructions in OP (I know I need root to unlock , its the first step plus yesterday I unlocked a LG G FLEX 2 in similar way but in that phone I didn't have to downgrade , ZV9 was good to go in that case).

I found a thread about how to downgrade, just waiting confirmation. So let's say I downgrade to ZV6 then if I follow the instructions in OP should work right?

Enviado desde mi Moto X mediante Tapatalk
[Sprint LG G4] lavero.burgos:
[MENTION=4640130]mayrer[/MENTION] what firmware/ROM is your daily driver?

Im not sure yet if i should upgrade back to ZVA or stay in ZV6 after I downgrade first to SIM unlock. Don't know if by upgrading I'll lose root, data, etc.

So what's recommended?

Enviado desde mi Moto X mediante Tapatalk
[Sprint LG G4] mayrer:
I'm on zv6.
[Sprint LG G4] TheMadScientist:
Yea ule lose root if u upvrade again i also run zv6 heck i got a setup i run so much i cant tell the diffrence between kk ll or mm let alone my g3 or g4 once ure setup ure own way its all the same. Im one of the few i didnt even care about mm updates though
[Sprint LG G4] Asiangamers:
so i was use this method to unlock sim and it only got 3g :( i was use this on verizon lol is there any way to get a 4g? like change build prop or something like that?

like 2 day ago i was using this method and got LTE with fast download but i was messing around with build.prop and it went back to 3g? any fix?
[Sprint LG G4] nukeman239:
[MENTION=4640130]mayrer[/MENTION] I'm on ZV9. The unlock works but I'm unable to access the "iot hidden menu" in order to edit my APN settings. It keeps saying "su not found" which is obvious since I don't have root but isn't this supposed to work without root? Any help will be greatly appreciated.
[Sprint LG G4] Asiangamers:
So ok..i was figure to here but to be honest i dont know what to do next...no service??...4g work well..except call and message?????
[Sprint LG G4] nukeman239:
Ok, so the simple question is, how do I edit APN on ZV9?
[Sprint LG G4] mayrer:
Sorry, I was busy for some time.

iot hidden menu on zv6 works without root, but on zv9 it work only with root.

For apn settings on zv9 and zva I did a test version of unlock.

TEST2. Test new folder carrier, apn setting unblocked after downgrade and back roaming setting in setting, try this.

Instruction:

1) Downgrade on zv6, root, unlock your phone with test version of unlock.

2) Unroot, update from ota on zv9 or zva, after that open the settings menu, and open item "roaming"

there will APN setting..
[Sprint LG G4] nukeman239:
Thanks a lot! A few questions, since I want to do it perfectly this time.

1. I just upgraded to ZVA. Do I flash ZV6 tot directly or do I first flash ZV9 tot first & then go to ZV6.

2. Is there any other way to root apart from flashing the rooted stock ROM? Something like flashing SuperSU.

3. After downgrading to ZV6, do I factory reset? From the settings menu or from the boot screen?

4 Do I TEST the APN setting on ZV6 before updating to ZV9 OR do I touch APN settings only after updating to ZV9?
[Sprint LG G4] mayrer:
1. Directly flash zv6.

2. No.

3. From the boot screen or stock recovery.

4. After unlock, Apn settings will work on any version rom.
[Sprint LG G4] TheMadScientist:
Any one having issuez with incoming calls. I keep getting points of not receiving calls. Callers state they thought i picked up as in it just quits ringing on there end. I have signal. Ive been playing with it for a while and its working for now. But will randomly start doing it again.
[Sprint LG G4] nukeman239:
Thanks but I have new problem now. After downgrading from ZVA to ZV6, my phone is stuck in a bootloop (LG flashing logo screen). I tried flashing ZV9 again & it works fine.

Also, I'm unable to factory reset with the hardware buttons from the boot screen. When I press the button combinations, nothing happens, it just proceeds with the boot.

EDIT: I fixed it. Apparently, they changed the button combination for hard resetting the phone. It is Volume UP+Power now instead of Volume DOWN+Power. I factory reset my phone & it booted fine.

EDIT 2: I was finally able to get APN settings to work.

I had to go into the hidden menu by dialing ##3282# & reset the APN settings to default.

The Roaming section now appears in the settings menu. Also able to creat new APNs.

Can I now flash ZV9 .tot?

Thanks again. You're doing an excellent job here.
[Sprint LG G4] mayrer:
I make reset via recovery.

After used unlock, item roaming itself is added in setting menu.

No, if you flash zv9 tot, folder carrier return to stock and gsm will not work.

Updated from OTA.
[Sprint LG G4] mayrer:
Disable itson.
[Sprint LG G4] nukeman239:
Thanks. What is the best way to unroot?
[Sprint LG G4] nukeman239:
Took the OTA to ZV9. APN sticking automatically but NO DATA....:( Any help?

Also, how to unroot? Do I press "Full Unroot" from the SuperSU app?
[Sprint LG G4] TheMadScientist:
I have it disabled. Ive noticed if i switch to gsm only network most of the time its ok. Only got 2g speeds ofcoarse. When i switch to gsm/cdma/lte/auto. Is when it happens. I can usally tell when its like this. Been having issue with data sometimes. Data connection could not be established i switch to airplane mode and back and data kicks in. Let me rephase. When i got 4glte icon up top data works great but no incoming calls. When it displays the h up top i get calls but the could not connect to data pops up.

---------- Post added at 08:25 AM ---------- Previous post was at 08:23 AM ----------

Also so u know i did i went back and did a tot restore i used youre guide followed all instrucs. Only diffrece i still did swap ro.build to open
[Sprint LG G4] mayrer:
Flash stock system.img , use send_command.exe.
[Sprint LG G4] nukeman239:
Thanks. I'm able to get 3G. How do I get LTE? I'm presently on GSM/UMTS network mode. Anyway to enable GSM/WCDMA/LTE/Auto mode? I'm using the phone outside US.
[Sprint LG G4] mayrer:
where you use the phone?

your operator supports the desired bands?
[Sprint LG G4] nukeman239:
India. Yes, my operator supports the bands. How do I enable it? Also, anyway way to get more network modes like I asked above?
[Sprint LG G4] mayrer:
Lte settings in menu ##3282# and in settings-mobile networks-4g settings.

More network modes there is in iot hidden menu.
[Sprint LG G4] TheMadScientist:
Where u find option for gsm umts. I think thats what my prob is. I cant find it in any of the hidden menus or mobile networks.
[Sprint LG G4] nukeman239:
I found it in the Mobile Networks page in the settings menu. Also, it is the first option in the IOT hidden menu. My problem is I see GSM/UMTS but no GSM/UMTS/LTE option.
[Sprint LG G4] TheMadScientist:
so I wanna do some testing by chance is it possible to use someone elses carrier folder? or is it device sensitive. I only have a modded one. if possible can someone post a orig unmodified carrier folder.
[Sprint LG G4] mayrer:
stock carrier
[Sprint LG G4] TheMadScientist:
Thank you good sir a million times over.
[Sprint LG G4] gorgans:
i have sprint g4 ls991zva marsmellow 6.0 how can i unlock this phone?

Can i root this phone?

Can i downgradevphonevwithout bricking?

How do i downgrade?
[Sprint LG G4] mayrer:
downgrade.
[Sprint LG G4] Eabney223:
Anybody have the zv6 tot every link i find is broken
[Sprint LG G4] mayrer:
Here.
[Sprint LG G4] Eabney223:
Thank you.i really appreciate this
[Sprint LG G4] AmadorSV:
Update

Hi, i was on zva and downgraded to zv6 to be able to unlock the network, now i still get the update notification. I want to know is safe to do the upgrade from ota? I wont lose the unlock...
[Sprint LG G4] mayrer:
Make unroot and update from ota, you no lose the unlock.
[Sprint LG G4] Eabney223:
If i unlock can i ota back to zva and keep unlock?
[Sprint LG G4] mayrer:
I not fully understand your question.

I Can say one , ota update not erase unlock.

Only flashing tot firmware, erases unlock.
[Sprint LG G4] AmadorSV:
Crash

I've unrooted the phone, and now when i upgrade to zv9 or zva i get gogle play stop working... Doy you know how to sokve this?
[Sprint LG G4] mayrer:
make hard reset
[Sprint LG G4] AmadorSV:
Good

Seems like it worked, thanks mayrer
[Sprint LG G4] skromnia:
Hello guys, I need your help because i've just bricked my LS991 - QHSUSB_BULK! HELP!
[Sprint LG G4] sunilromy:
Great job sir. I like it and well explained., anyone who follows the instruction step by step wont face any issue. i was on marmallow zva, successfully unlocked gsm by downgrading.

test2 doesnt unblocked apn settings :(
[Sprint LG G4] mayrer:
you can tell more detail?

In settings menu there is roaming item?

Are you sure you have used it https://www.androidfilehost.com/?fid=24438995911976981
[Sprint LG G4] sunilromy:
roaming options is showing right now. idk, i am using it on nv mode and yes i used that file.. i can all so see new boot animation you provided in it. i will test it again maybe later. going to sleep its 2.30 am. take care and thanks again in the morning..
[Sprint LG G4] sunilromy:
[MENTION=5759239]TheMadScientist420[/MENTION]

you are the man. This issue is only faced by people who are switching from gsm to cdma or cdma to gsm lol.

oops quoted wrong sorry [MENTION=3312456]LoRd D[/MENTION]red.
[Sprint LG G4] kevin.meza:
Thank you so much, it worke!

It worked fine, it unlocked my LG G4 LS991, just dont know why the annoying hands free activation keeps poping up. Did tfy the method here, everytime i reboot comes back.
[Sprint LG G4] mayrer:
You changed operation mode in lte setting on lab network and HFA not disabled? :confused:
[Sprint LG G4] mayrer:
I have no experience in working it with t-mobile, i use my ls991 in europe.

Wait for the one who knows.
[Sprint LG G4] br0adband:
It's not a T-Mobile issue in this situation, it's getting the thing unlocked to work properly. As I said, the previous owner was using UltraPOP AOSPish, and it was unlocked and working with T-Mobile - I saw it using T-Mobile, saw him remove his T-Mobile microSIM after which I put mine in and it worked.

It's only now because I rolled back to ZV6 rooted and then attempted to use your method and files (twice now, the original and then the updated one) and I've had zero success so I keep thinking I'm missing something.
[Sprint LG G4] mayrer:
In folder carrier delete all folders and files except the folder "apps" and files in that folder, and try.

If it do not help , I recommend flash your phone through flashtool and then try unlock again.
[Sprint LG G4] br0adband:
Bleh, after several attempts at getting this to work I said the hell with it.

I installed ZV9 clean to check it out for a bit but knowing there's no root for it (yet) and I have to have root for Xposed, I rolled it back to ZV6, then installed the ZV6 International ROM and of course everything works as expected with no damned ridiculous irrelevant SIM lock in place.

And yes I'm on T-Mobile so, for those people that want ZV6 with an LS991 and would like to use or must use T-Mobile, that's my recommendation: just start from ZV6 (assuming you didn't accept or install the ZVB update) and flash the ZV6 International which gives you most everything you end up wanting (unlocked SIM, T-Mobile LTE access with no issues noted so far and speeds where they should be once you add the fast.t-mobile.com APN information) without the necessity of all the hoops that I went through and some others have but were unsuccessful.

Thanks to mayrer for this method however and I'm glad some folks had success with it.

One odd thing: even after wiping this G4 of mine a few times and using LGUP to flash both ZV6 and ZV9 cleanly, I still have the boot animation showing "Unlocked by mayrer" so that's a bit odd to me considering all that stuff should have been wiped out entirely in the flashing processes I just went through over the past 4 hours.

Really odd...
[Sprint LG G4] mayrer:
My BootAnimation is in the folder carrier , and fleshtool overwrite the folder , so I said to flash your phone than fleshtool and try unlock again.

Only flashtool back to stock your phone.

For delete my bootanimation, simply in folder carrier /cust delete two folders "poweron"

and "poweroff".

After my unlock you can update your phone from ota.

To make stock firmware in inertenional rom

you just need to change build.prop, not necessarily international rom download.

But forget the ota update, and cdma standard not working.