Database Users

[Q] how to unlock galaxy s4 from straighttalk SM-S975L

So I looked everywhere and no one seems to know how to unlock a straighttalk s4
since this site the best with cellphones problem solving I'm askin for some help :/
its a SM-S975L

when i ran the network unlock tool it was already unlocked the boot loader wasn't locked either the only thing we need now is rom development to include our devices. I have twrp and used towel root to root the device.

meya_20 said:
So I looked everywhere and no one seems to know how to unlock a straighttalk s4
since this site the best with cellphones problem solving I'm askin for some help :/
its a SM-S975L
Click to expand...
Click to collapse
I'm dealing with this same issue right now. Bought an SM-S975L for straight talk last night and I want to use it on Metro PCS. Metro says all is well on their end and I just have to wait, but all I see is "Invalid Sim" on the status bar. How did you unlock the SM-S975L? There's very limited information around the internet about this model. I'm tearing my hair out and the wifey is driving around without a phone. Figured you (or anybody else) could point me in the right direction.

meya_20 said:
So I looked everywhere and no one seems to know how to unlock a straighttalk s4
since this site the best with cellphones problem solving I'm askin for some help :/
its a SM-S975L
Click to expand...
Click to collapse

BoominSVX said:
I'm dealing with this same issue right now. Bought an SM-S975L for straight talk last night and I want to use it on Metro PCS. Metro says all is well on their end and I just have to wait, but all I see is "Invalid Sim" on the status bar. How did you unlock the SM-S975L? There's very limited information around the internet about this model. I'm tearing my hair out and the wifey is driving around without a phone. Figured you (or anybody else) could point me in the right direction.
Click to expand...
Click to collapse
LOL, the $249 deal was hard to pass up. I got a couple of them, one for me and one for the misses. She'll be fine with the 4.3 that is on the phone out of the box, but I wanted to convert mine to be like the I9505G (GPE). I was thinking it would be simple as I've heard all of the LTE models were like the I9505 and they seem fairly broken into. But I think this is more like the SGH-I337 and maybe boot loader locked, but looking into ways to test that. I did root it already using towelroot. Installed SuperSU and Titanium Backup and root is working, now so see if I can get CMW and a GPE rom on it. If I find a way I'll be sure it is mentioned here as a working method for the SM-S975L. I'm not using it yet as I have my GT-I9500 that I'm using, but seeing better support for the qualcomm for custom roms I decided to get it. The I9500 should get Android 5.0 official rom first though.

For what it's worth, I just picked up this phone from the Black Friday sale, and I would *really* like to put a custom ROM on it. I won't even pretend to be proficient in this. How difficult would it be to convert the custom ROMs on other models of Galaxy S4's to this one?

I am unsure my self the closest variant is the att s4. Both the att one and this one is bootloader locked. Since we have 4.3 version of Android safestrap would be likely what to use. I am afraid of this my self so I have not attempted it
Sent from my SM-S975L using XDA Free mobile app

Whoa whoa whoa. What am I looking at? It looks like that's the model of the T-mobile variant, but the baseband is the same as the S975L!?

aromerblz said:
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Even a custom kernel flashed! What.
Sent from my SM-T310

It is the SM-S975L with a T-Mobile ROM and the custom kernel. The SGH-I337 ROM does not work, it erases the system partition every flash.

Awesome work aromerblz. Anything special you had to do to load the ROM with the S975 baseband...or any issues you're experiencing? Will be testing this out later in the week when I get some free time.
-JC

That is cool, at the very least its Kit Kat. I still would like to find a method to convert completely to GT-I9505G. Just no time. I'm hoping with jtag access it can be completely reconfigured, then just make sure the IMEI is set to that the device should be. Ideally the only way to see it was a SM-S975L would be to look under the battery. I don't really care about removing the SIM lock though, I plan to stick with my ST SIM. I did get a new BYOD SIM and it is showing 4G now (Not sure if it should indicate LTE like old ATT S3 does) as my old BYOD SIM would not and ST support said that I could not move the included SIM to any other device as it would be bound to the S975L.

I would love to get off the Tracfone ROM. I'm going to assume that Samsung/Tracfone will never upgrade this phone beyond Android 4.3. The last native update was in February of this year, and it was just a minor patch. I'm not too concerned about unlocking, but being able to use a different ROM seems to be a step in the right direction. If anyone could post a tutorial or what ROMs they used, that would be extremely helpful. I've looked everywhere and this info is not available anywhere.
For what it's worth, someone over on GSM Forums has claimed to have flashed the AT&T ROM too. They also were unable to unlock it, however. Unfortunately, I can't post the direct link until I have hit 10 posts That poster has been inactive for two months, and before that, he was inactive for three years. It may be hard to get in touch with him..

carlyman said:
Awesome work aromerblz. Anything special you had to do to load the ROM with the S975 baseband...or any issues you're experiencing? Will be testing this out later in the week when I get some free time.
-JC
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Click to collapse
I first flashed a T-Mobile TWRP recovery v27.1, but the latest v28 works fine. After that i downloaded the TMB firmware NB4 from sammobile.com created a custom rom with the android kitchen. After that the usual flashing of the rom via TWRP. Without a custom kernel the phone does not boot up. So i used the ktoonsez kernel. Once booted i rooted with towelroot and pjone has been working fine. Only things to know is that when booting up it says "Kernel is not SeAndroid"
"Set Warranty Bit: Kernel"
As that specifies it trips the knox flag. Which i dont care if it does as am not in the USA.

You used the TWRP for jfltetmo, correct? Did you use Odin to flash it?
Also, this might seem obvious, but even if I do this, it'll still work/remain locked to ST/AT&T, correct?

lilmul123 said:
You used the TWRP for jfltetmo, correct? Did you use Odin to flash it?
Also, this might seem obvious, but even if I do this, it'll still work/remain locked to ST/AT&T, correct?
Click to expand...
Click to collapse
Yeah TWRP for jfltetmo. The jflteatt does not seem to work at all on this model. I flashed with odin, no need to use safestrap on this phone as i think the bootloader is not locked like the one found on the SGH-I337, although its the identical variant.
Yes the phone remains locked to ST/AT&T. A friend of mines was able to get the unlock cod for this phone but even with the unlock code its not a permanent lock. Reason is because you can unlock and be able to use all the features available to the phone but once restarted it asks for the code again. Not sure why it does that, I believe the radio has to be the culprit for that here. Not sure how TracFone will handle the unlocks for this phone after 01/01/15. does the same even on full stock TF firmware.

lilmul123 said:
I would love to get off the Tracfone ROM. I'm going to assume that Samsung/Tracfone will never upgrade this phone beyond Android 4.3. The last native update was in February of this year, and it was just a minor patch. I'm not too concerned about unlocking, but being able to use a different ROM seems to be a step in the right direction. If anyone could post a tutorial or what ROMs they used, that would be extremely helpful. I've looked everywhere and this info is not available anywhere.
For what it's worth, someone over on GSM Forums has claimed to have flashed the AT&T ROM too. They also were unable to unlock it, however. Unfortunately, I can't post the direct link until I have hit 10 posts That poster has been inactive for two months, and before that, he was inactive for three years. It may be hard to get in touch with him..
Click to expand...
Click to collapse
Can you PM me that GSM forums link you are talking about. I want to take a look.

Np, just a sec. (building up my post count)

GSM Forum stating AT&T-based ROM...not much detail I could glean from it tho. http://forum.gsmhosting.com/vbb/f286/unlock-samsung-sm-s975l-tracfone-straighttalk-1866981

Difficulties after switching to T-Mobile

Hey guys! Thanks in advance for any help or clarity you can provide.
I had to switch to T-Mobile from Verizon. My device isn't rooted, modified, or in any way different than factory. However because of the switch I've had some functionality that I've lost. Namely the ability to get software updates. This phone has been rooted before, and I'm very comfortable with the process of loading up different software. The question I can't find anything on is whether or not installing the T-Mobile firmware will brick/cripple the device. I know there are different chipsets so I'm trying to figure out the best way to keep my phone up to date without being on Verizon anymore.

h4ckluserr said:
Hey guys! Thanks in advance for any help or clarity you can provide.
I had to switch to T-Mobile from Verizon. My device isn't rooted, modified, or in any way different than factory. However because of the switch I've had some functionality that I've lost. Namely the ability to get software updates. This phone has been rooted before, and I'm very comfortable with the process of loading up different software. The question I can't find anything on is whether or not installing the T-Mobile firmware will brick/cripple the device. I know there are different chipsets so I'm trying to figure out the best way to keep my phone up to date without being on Verizon anymore.
Click to expand...
Click to collapse
You can flash T-Mobile's firmware or the U firmware without any problems. There are tutorials here in the forums that will walk you through the process.

Outbreak444 said:
You can flash T-Mobile's firmware or the U firmware without any problems. There are tutorials here in the forums that will walk you through the process.
Click to expand...
Click to collapse
I tried finding something about loading the T-Mobile firmware on a Verizon device but I haven't had any luck. Only guides on doing a regular firmware update on a T-Mobile device. Should I be worried about the Exynos/Snapdragon differences? I hate asking for something so simple, but could you please point me in the right direction? I'd LIKE to try and go that route, because the U firmware had poor battery life, a lot of heat generation, and requires a patch just to get wifi to work. Then again maybe I'm thinking of the eng boot we had for rooti. I do love my all day battery quite a bit.
Thanks in advance.

h4ckluserr said:
I tried finding something about loading the T-Mobile firmware on a Verizon device but I haven't had any luck. Only guides on doing a regular firmware update on a T-Mobile device. Should I be worried about the Exynos/Snapdragon differences? I hate asking for something so simple, but could you please point me in the right direction? I'd LIKE to try and go that route, because the U firmware had poor battery life, a lot of heat generation, and requires a patch just to get wifi to work. Then again maybe I'm thinking of the eng boot we had for rooti. I do love my all day battery quite a bit.
Thanks in advance.
Click to expand...
Click to collapse
T-Mobile, Verizon, and the U phones all have snapdragon processors. No need to worry about that.
Read through this thread here as it pertains somewhat to what you're trying to accomplish. Read it from start to finish so you don't miss anything important.
http://forum.xda-developers.com/tmobile-s7-edge/help/sm-g935u-t-mobile-t3417529

@Outbreak444 Thanks for the help. Last night I threw G935U-PI3 on the phone and literally everything worked out of the box. Even wifi calling and (seemingly) VoLTE. It's taken care of all my issues. I can't get over the fact that it's now an out of the box solution and it works flawlessly.

h4ckluserr said:
@Outbreak444 Thanks for the help. Last night I threw G935U-PI3 on the phone and literally everything worked out of the box. Even wifi calling and (seemingly) VoLTE. It's taken care of all my issues. I can't get over the fact that it's now an out of the box solution and it works flawlessly.
Click to expand...
Click to collapse
Hey, a friend of mine just got the Verizon s7 edge and is trying to get it to work on T-Mobile. Did you have to get the phone unlocked somehow, or did you just install the U firmware and everything was fine. My friend's data is not working. Thanks!

mhill1986 said:
Hey, a friend of mine just got the Verizon s7 edge and is trying to get it to work on T-Mobile. Did you have to get the phone unlocked somehow, or did you just install the U firmware and everything was fine. My friend's data is not working. Thanks!
Click to expand...
Click to collapse
Just look on the forums on flashing either the U firmware or T-Mobile firmware using Odin. It's a fairly easy process if you read through the steps thoroughly. And you don't need to worry about unlocking anything.

Outbreak444 said:
Just look on the forums on flashing either the U firmware or T-Mobile firmware using Odin. It's a fairly easy process if you read through the steps thoroughly. And you don't need to worry about unlocking anything.
Click to expand...
Click to collapse
I'm familiar with flashing the U firmware, as I did this on my Sprint s7, but my understanding was that just flashing the U firmware didn't open up the bands. But are you saying that flashing the U firmware alone was enough to get TMobile fully working?

mhill1986 said:
I'm familiar with flashing the U firmware, as I did this on my Sprint s7, but my understanding was that just flashing the U firmware didn't open up the bands. But are you saying that flashing the U firmware alone was enough to get TMobile fully working?
Click to expand...
Click to collapse
My understanding it does. The hardware between the phone's should be the same so it's software that's affecting it. But the U firmware won't allow wifi calling and other carrier specific things unless you're rooted. So pick and choose.

Samsung Galaxy J7 Prime (SM-J727T1) Metro PCS Variant

Hello everyone, this is my first post so please take it easy on me. I have read a lot of threads regarding this phone but haven't seen or heard much about this specific device. From what I read was our BOOTLOADER is locked by the manufacturer & so far that's the major issue? Anyways, id love to see this phone get rooted and enjoy the perks of root.
Model Number: SM-J727T1
ANDROID VERSION: 7.0
BUILD NUMBER: NRD90M.J727T1UVU1AQG1

I can't find any root method what so ever.
Is anyone working on it?
Wondering if there is a similar method like the root on my j3 (cricket) granted that was a touchy root but worked aside from flashlight button not working and changing setting in build.prop to save wifi pass.
Love to see this j727t1 (metropcs) rooted and hopefully a twrp.

Dig in. It's going to be a long wait...

So I can tell. We aren't getting anywhere but I don't know what or where to start working on something. I'd like to develop or study how rooting works or just how to be able to be active in this community. If anyone has pointers please let me know.

Adb might work
I read something about using adb to unlock the bootloader. Only ever used adb once to root LG Stylo 2 it did work but there's a few steps and I don't have access to a computer long enough to find out if that would work on this phone. What about looking at other Android devices that have locked bootloader and see how they got past it.

There's no root for this device. Also, I doubt we will ever see root for this device. It has very small user base. I got mine for free with a free Amazon 1 year activation key, so no complaints.
When turning it on in cold weather, the task switch menu pops up and stays there for couple seconds, which is kind of annoying. Only happens when left in a cold environment. I was looking for root to disable soft-keys and enable on-screen menu key, but no luck.

Completely blown away by how they seem to neuter this j7prime phone which is suppose to be the successor? Hope to see root but it also doesn't seem likely as well.
Anyone know what case works on this phone? seems the ebay listing for j7prime doesn't exactly fit this phone; not surprising anymore since a brand name seems to be different across providers and regions!? Gonna have to buy a non carrier phone from now on.

Umm cases are sometimes difficult to come by but I know they sell cases at the mall near my house at some kiosk, also at Metro PCS, but I bought my case at Wal-Mart maybe about 2 months ago. It was actually an otter box and fits like a glove. This phones decent, sometimes can lag but otherwise I gave up on root hopes.

Only thing that could work
Ok how to do it, but some one could download the firmware from sammobile or what ever. Open the files and find out what codes to put where to have rooted firmware zip back up and upload to the internet that could be the only way around not having oem unlocked. I have downloaded firmware like this for other devices but Idk how to do the to do that exactly.

I made a thread about this already, I searched but might not have used all of the correct criteria to come to this thread at that time but this is what I found.
https://www.androidinfotech.com/2017/09/j7-prime-sm-j727t1-nougat-cf-root.html

Psych0Smil3s said:
I made a thread about this already, I searched but might not have used all of the correct criteria to come to this thread at that time but this is what I found.
https://www.androidinfotech.com/2017/09/j7-prime-sm-j727t1-nougat-cf-root.html
Click to expand...
Click to collapse
It's pointless, whoever posted that obviously doesn't own the device and hasn't got a clue.
All it's likely in succeeding to do do is soft brick the device if it even flashes at all which is unlikely.

I see unlocked US version has OEM unlock option after 14 days of first activation. There may be a hope to root with Magisk as long as getting correct ROM and boot.img from there.

mingkee said:
I see unlocked US version has OEM unlock option after 14 days of first activation. There may be a hope to root with Magisk as long as getting correct ROM and boot.img from there.
Click to expand...
Click to collapse
Nope not gonna happen. Bootloader is locked.

So i subscribed to this thread just to see if people really like this phone. After going to Metropcs and seeing what the latest phones. Turns out that i can't find a good reason to upgrade from the J700. No super Amoled, no front flash, still the same screen size and after playing with it. It just feels like a downgrade, i don't know. The only good thing about it is that it is black and has 32gb of storage which i thought it was going to be different from the 16GB version. Nope, same hardware with 32gb. I suppose the cpu is faster than the J700, but by how much faster?
Sent from my SM-J700T1 using Tapatalk

Picked up a J727t1 as a backup phone for my note 8. So far it seems fairly decent. I only want root so I can get rid of the MetroPCS splash screen and some built in apps. Aside from that, it runs surprisingly smooth. It's odd that there's no fingerprint reader though.
I'll just have to keep my eye out in this thread. Hopefully someone finds a way to root
Sent from my SM-N950U using Tapatalk

You can debloate, just downgrade to aqg1 and use a root package disabler cause they don't work on current firmware from my tests cause Knox kicks it for me. With it debloated, it eats on average 20% ram idle. You do lose restore from Samsung's side doing it which is a bummer.
Also, I use substratum and Google apps to get a black theme all around (swift black) with Nova launcher and 523 dpi. Sure paid apps, but worth it looking like stock Android.
No root, but there are work arounds if you only Google how to's and what not's

So you're telling me the j727t1 can be downgraded and rooted ( you mention the root package disabler )?
I was just researching to see if there's any unbranded firmware we could flash but I've seen where some have tried in other j7 models and lost 16 of their 32gb storage ( likely wrong pit file? ).
Id even be ok with stock TMobile firmware flashed but it seems all theirs are 16gb models too ( j727t vs j727t1 ). Didn't want to try using Comsey Odin with the TMobile package until I see something more definitive as to whether it works or not.
Sent from my SM-N950U using Tapatalk

Sorry, just a package disabler. Just so use to calling them "root" blah blah. Downgrading does work, I'm just not to sure how far back you can go. Plus all our firmware is 7.0. I'll download the first fw sammobile has to give a few root methods a try if it flashes
Yeah I've heard about flashing other carrier firmwares do work, just haven't tried myself as the 16-32 gb mess is in my way.
I know what I did was a pain, but I feel it's worth it. I only miss root for flashing roms when I needed breaks from the same old

where's the link to root SM-J727T1? This phone does not have oem unlock option so bootloader is locked. Unless an oreo update changes that; I wouldn't mess with it.

I am watching this thread even though i do not own this phone. The fact that there is no oem unlock on this phone makes me wonder if this is how it is going to be on future phones. I was reading regarding about anti-theft security on phones. By not having the option to toggle to oem unlock makes the phone more secure by forcing frp to be enabled once you link your google account to your phone. But this still does not explain why international phones do have this option available though.
In a nutshell, no oem unlock=no root or anything custom. If this is where Samsung is taking things from here on out. It is going to be a long time before anyone can figure out how to force unlock. Otherwise, no more root on Samsung devices.
Sent from my SM-J700T1 using Tapatalk

Unlock bootloader BrightPoint bpt us996

Anybody with any knowledge on weather dirty Santa works on a bpt (Bright Point) us996? Then if it does what version it needs to be in to do it and if I can just flash standard us996 firmware over it? I have tried posting in the a few other thread about it with no luck. There is info on using dirty santy on us996 but most of it is about standard unlocked version or the ucl (US Cellular) version there is almost no mention if bpt(BrightPoint) version.

Vortell said:
Anybody with any knowledge on weather dirty Santa works on a bpt (Bright Point) us996? Then if it does what version it needs to be in to do it and if I can just flash standard us996 firmware over it? I have tried posting in the a few other thread about it with no luck. There is info on using dirty santy on us996 but most of it is about standard unlocked version or the ucl (US Cellular) version there is almost no mention if bpt(BrightPoint) version.
Click to expand...
Click to collapse
Yeah you posted in multiple threads all within a few minutes and haven't waited for a reply, what do you think we're just anxiously sitting here waiting for post? SMH
Sent from my LG-H910 using XDA Labs

Just post in multiple threads then help in other threads about samsung note 4, s5 and a couple of other older device threads. This is my last hope for some info. Just been waiting for days on response in other threads and don't want to have to rewrite the question due to dislexia. I have to reread my post multiple times to make sure it's coherent. Even then I will have to edit it after. So the post took like 10 minutes to get to where I thought it actually made sense then I actually edited it 2 times after. Just like I had to edit this one 4 times...

Vortell said:
Just post in multiple threads then help in other thread about note 4 and s5 threads. Just been waiting for days on response in other threads and don't want to have to rewrite the question due to dislexia. I have to reread my post multiple times to make sure it's coherent. Even then I will have to edit it after. So the post took like 10 minutes to get to where I thought it actually made sense then u actually edited it 2 times after.
Click to expand...
Click to collapse
Better yet quit spamming the forum and start reading threads and figure it out yourself, xda is resource for the user to develope and mod your phone, not a hand holding spoon ? feed tool. It's your phone so in the end whatever you do to it is your responsibility, so proceed with caution
Sent from my LG-H910 using XDA Labs

cnjax said:
Better yet quit spamming the forum and start reading threads and figure it out yourself, xda is resource for the user to develope and mod your phone, not a hand holding spoon ? feed tool. It's your phone so in the end whatever you do to it is your responsibility, so proceed with caution
Click to expand...
Click to collapse
You right calling me a baby is well within roles of this forum... I have read threads for days not only here but rededit and android central how might time do you take to learn as much as possible before posting your question? :silly: Honestly though I challenge you to find info on the bpt version and on brightpoint in general. There is not a lot about either. Only one post on reedit about it and no comfirmation flashing standard us996 firmware worked on it and details about how Bootloader was unlocked other then they downgraded firmware. I assume was with uppercut and lgug but not sure... Hence why I am asking in large number of areas and this thread in particular so in future the knowledge is out there and searchable in Google. Way to spam well complaining about what you feel is spam btw!:fingers-crossed::highfive:

Vortell said:
You right calling me a baby is well within roles of this forum... I have read threads for days not only here but rededit and android central how might time do you take to learn as much as possible before posting your question? :silly: Honestly though I challenge you to find info on the bpt version and on brightpoint in general. There is not a lot about either. Only one post on reedit about it and no comfirmation flashing standard us996 firmware worked on it and details about how Bootloader was unlocked other then they downgraded firmware. I assume was with uppercut and lgug but not sure... Hence why I am asking in large number of areas and this thread in particular so in future the knowledge is out there and searchable in Google. Way to spam well complaining about what you feel is spam btw!:fingers-crossed::highfive:
Click to expand...
Click to collapse
Who called you a baby? Yourself, sounds like it. With your ridiculous multiple posts. But I digress not going to reply anymore that way you and your posts will fade away into the long forgotten depths of xda. Peace
Sent from my LG-H910 using XDA Labs

cnjax said:
Who called you a baby? Yourself, sounds like it. With your ridiculous multiple posts. But I digress not going to reply anymore that way you and your posts will fade away into the long forgotten depths of xda. Peace
Click to expand...
Click to collapse
Once again implying I'm a baby just like the spoon feed is same as calling me names... I guess a will have to report you for spam harassment and name calling.

i95swervin said:
Dump your partitions with the patched lg up.. Save them and put them in a safe place. Flash a usc us996 kdz and root with dirty Santa. Only thing I could recommend.
Click to expand...
Click to collapse
Thanks I was thinking about that. Just not sure how good LG devices are about reflashing. Honestly was going to use uppercut lgug to only other version of os put out for the bpt then back it up and try to run dirty santa then back everything up and try a os on it. Just not sure how prone to bricking these v20s are. Sounds like there is a default download mode from pressing up volume you might be able to get to if you brick it. So I have read a lot just not much for this variation of the us996.

Please explain what the difference in this model is compared to the other one thanks........
Ok pretty sure I ended up with one of those bpt one's no big problem I just won't bother rooting it.

stinka318 said:
Please explain what the difference in this model is compared to the other one thanks........
Ok pretty sure I ended up with one of those bpt one's no big problem I just won't bother rooting it.
Click to expand...
Click to collapse
I think it's the same deal as the us Cellular version the hardware is the same as the normal us996 but it has a custom firmware that does not allow oem unlocking. From a rededit post I read you need to roll it back one firmware version (there are only two) then you can use dirty Santa on it and change it to a firmware for a normal us996. Same bands and 2g and 3g from what I can tell. It works and i was able to add to verizon wireless. Brightpoint was a third-party seller of equipment for sprint i think. It was sold and the name had changed yet some equipment is still labeled brightpoint from lg. It's hard to find info on it.

Vortell said:
I think it's the same deal as the us Cellular version the hardware is the same as the normal us996 but it has a custom firmware that does not allow oem unlocking. From a rededit post I read you need to roll it back one firmware version (there are only two) then you can use dirty Santa on it and change it to a firmware for a normal us996. Same bands and 2g and 3g from what I can tell. It works and i was able to add to verizon wireless. Brightpoint was a third-party seller of equipment for sprint i think. It was sold and the name had changed yet some equipment is still labeled brightpoint from lg. It's hard to find info on it.
Click to expand...
Click to collapse
Thanks for responding I tried this flashing us996usa us cellular nothing changed except now I have products code name Elsa_nao_ us......

Not sure what you are trying to do but you downgrade to previous build version then run dirty Santa to get TWRP on it. Then probably upgrade TWRP after that upgrade to lineage 15.1 aka Android 8.1.

LS99720a - Any way to root JUST for deleted file recovery? Don't need other stuff.

Title. I no longer use this phone but I would _love_ to be able to get deleted stuff off of it. I did this in the past with my old LG G3 and never had any issues like this phone has with getting to root. I tried it when I first got the phone, tried it a year later. never worked. Now trying 3 yrs lol. Is there anything I can do or am I SOL?

@Phoenix591 already answered this for you on Reddit. I don't know what else to tell you.

Original Reddit post for anyone else who is reading
Thats an Oreo version, and so is past the point of no return. It's unrootable. Tiny electronic fuses have been physically burned to prevent it from booting rootable firmware.
As I mentioned the last version that has the ability to return to a rootable version was ZV7 (the actually rootable versions were ZV5 or earlier, however LS997 did updates weird which ment that firmware wasn't available to flash using the same tools other models use... If on ZV6 or ZV7 its possible to root by crossflashing another model's firmware briefly ) , which was a few updates before oreo came out.
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Snakecharmed said:
@Phoenix591 already answered this for you on Reddit. I don't know what else to tell you.
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Click to collapse
i know you answered it, i just wanted to see if there was any other sort of input anyone could give. just really desperate i guess. i guess i will never be buying thru sprint again.

bezrq said:
i know you answered it, i just wanted to see if there was any other sort of input anyone could give. just really desperate i guess. i guess i will never be buying thru sprint again.
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Unfortunately, the LS997 ended up being more limited than the other carrier-specific models. However, root access is getting harder to come by on new carrier-specific devices in general.