yashsingh1/xdaforums huggingface dataset:
[LG V20 Questions & Answers] hyelton:
That's terrible. Report sellers that do that.

But You can't do what your wanting to do. You can't put that phone on Verizon, it doesn't work that way. Unlocked means it will work on AT&T, T-Mobile or any other GSM carrier in the USA or outside the USA.

2. I don't think there is root for the sprint model.

3. You can't flash other carrier firmwares. You can ONLY use the firmware that's on the device. If you flash a different carriers firmware you'll brick your device..
[LG V20 Questions & Answers] gerland:
So even if I actually can uicc unlock my Sprint V20 it won't be able too be rooted???
[LG V20 Questions & Answers] hyelton:
If there's root available for your model yes. But if not then no. UICC unlock won't have anything to do with being able to root or not.
[LG V20 Questions & Answers] Beefy1488:
I can still root cause has not updated. already asked me2151. it will work on Verizon, had my sim card from Verizon in it and worked just fine except not showing Verizon symbol in the service corner, its a unlocked phone now, I don't think it will work on gsm cause of it being a cdma phone. I mean worst case scenario I will use on boost mobile.
[LG V20 Questions & Answers] hyelton:
Verizon doesn't officially support non Verizon devices meaning non LTE data may not work or work correctly.

It working on Verizon doesn't mean it's unlocked. Unlocking a phone relates to GSM not CDMA. Also if you use that apk your phone will work perfectly fine on AT&T or T-Mobile. Just like the Sprint G5 does.
[LG V20 Questions & Answers] Beefy1488:
I have that app plus my phone is sim unlocked, it was paid for in full so I had them uicc/sim unlock it. that is what I was trying to say idk if I misconstrued that.
[LG V20 Questions & Answers] rubiicon59:
OK first problem I want to sort on my V20 is Tethering shutting down after 20 seconds, every single time it's switched on.

I'm in the UK and have the H990ds Taiwan variant.

When trying to change APN settings some options are not there when I compare to the settings on my Z2, and some other options that are there cannot be edited.

So this thread looked hopeful but I've installed the apk from the OP link and this is what I get when I open the app -
[LG V20 Questions & Answers] hyelton:
This thread of for specifically making a US carrier device be network unlocked. This that most likely won't be of any use to your model.

That's a very strange issue. Settings with your APN won't make your hotspot shut off. You can turn on hotspot even if data is not working.

Seems more like a software issue or hardware issue.
[LG V20 Questions & Answers] rubiicon59:
Thanks. But so far after much googling APN settings are what everything has led me to believe is the problem. So I'm trying whatever I can.

Back to the drawing board....
[LG V20 Questions & Answers] hyelton:
Have you tried performing a factory reset?
[LG V20 Questions & Answers] hkjohn:
Very interesting post. As mentioned, this App is unfortunately intended to be used in the states only. Should it be possible to help us switch the bands for different carriers in different countries, would it be great!
[LG V20 Questions & Answers] rubiicon59:
[MENTION=2607037]hyelton[/MENTION]

The problem was down to a Sony app that I inadvertently installed when setting up my V20.

Thanks for your help.
[LG V20 Questions & Answers] jaysonic88:
I don't see the IOT (CDG2) menu when i open the hidden menu on my H918. Does this apply to T-Mob?
[LG V20 Questions & Answers] Dr.Asprin:
After the Oreo update I can't unlock sim card what I can do? . . Please help me
[LG V20 Questions & Answers] Gakson:
The app does not have IOT option in my phone

Hello vlad48,

I'm greatfull for the solution you have given... I installed all correctly and launched the app but there is no option like IOT there. I successfully switched to LTE through the app but it is temporarily, when I put off the phone and on it later there is no more LTE signal it gets back on 3g(H+).

Please I need a permanent solution.
[LG V20 Questions & Answers] ankade:
The HiddenMenuCall APK is starting, but any menu I press results in "HiddenMenuCall has stopped, Open app again ..."

my situation is this one:

https://www.reddit.com/r/LineageOS/comments/a67wpb/los_breaks_mobile_data_connection_on_v20h910/

anyone any idea, how I can enable mobile data?
[LG V20 Questions & Answers] dharakv:
Will this enable me to open more GSM bands ?
[LG V20 Questions & Answers] hyelton:
You can’t enable bands your phone doesn’t support. That’s hardware not software
[LG V20 Questions & Answers] pointbob:
Can someone help newb. I have a sprint LG v20. locked of course. I bought off ebay...lg-ls997 S/w LS9977ZVD Android 7...build nrd90m

Can i unlock on my own or do i have to use unlock service? THANKS for any info :)
[LG V20 Questions & Answers] hyelton:
Unless you plan on using it on sprint I’d suggest you return it.
[LG V20 Questions & Answers] pointbob:
"starting with ZV8 firmware version Sprint has patched its ROM, so this option is not available any more."

But i android vers 7 without zv8 firmware...won't the purpose of this thread work?

---------- Post added at 04:18 AM ---------- Previous post was at 03:46 AM ----------

Hi ya

I also don't see the IOT (CDG2) menu when i open the hidden menu on my sprint LS997ZVD (ps..i do not have a sim card i n the phone currently..do i need one to make this apk unlock work?)
[LG V20 Questions & Answers] Phoenix591:
ZVD is after ZV8, the option is gone . No you can't go back to ZV7 either (nor can you root).
[LG V20 Questions & Answers] pointbob:
thanks...unreal...no rooting available?...i thought we could mcgyver anything...
[LG V20 Questions & Answers] Phoenix591:
not for sprint past ZV7, they did such a good job locking it down, you should really thank them for keeping your device so secure! /s
[LG V20 Questions & Answers] willy_itc:
https://www.youtube.com/watch?v=-VkuCG1jstg

Unlock LG V20 sprint 8.0 20A

LS997
[LG V20 Questions & Answers] nookin:
I have a Sprint LS997 running 7.0 ZVC. I was able to use T-Mobile SIM with it and I can add / remove / edit APNs. But when I try to use a foreign LTE SIM, the Network Selection is grayed out and the APN manual is completely empty with no ". . ." menu.

(Never mind, the SIM was not inserted properly)
[LG V20 Questions & Answers] kenoo52:
Is there any way unlock ls99720a? I mean v20 oreo. And any way to stock rom?

If there is,please share with me.
[LG V20 Questions & Answers] nookin:
Looks like I ran into this problem again. Definitely inserting SIM correctly right now. I can even make phone calls. But no Data as APN is not set / wrong.
[LG V20 Questions & Answers] baugen55:
Why does both app and hidden menu codes refuse to work on some phones? I got it working on my H910 but I suspect it was only after rooting. Anyway worked after installing the app, curiously, but refuses to work on my VS995 nougat
[LG V20 Questions & Answers] hyelton:
No.. this is for the SPRINT CDMA model to make it work with GSM carriers like AT&T or T-Mobile.

You will have to have T-Mobile unlock your device through the device unlock app on your phone. There's no way around that.
[LG V20 Questions & Answers] jaysonic88:
No worries, thanks for the quick response.
[LG V20 Questions & Answers] xuanhac87:
US996. I don't see the IOT (CDG2) menu when i open the hidden
[LG V20 Questions & Answers] hyelton:
That's because the US996 is not a Sprint model.

And the US996 should already be unlocked.
[LG V20 Questions & Answers] xXxShAmRoCkxXx:
this post saved my ass. thanks op.
[LG V20 Questions & Answers] prosaschi:
Hope I don't sound like a noob, but what exactly will this do? Will it boost your signal, more bars, etc. I was curious of this modification.

Thanks!

Paul
[LG V20 Questions & Answers] hyelton:
No , it's for making the Sprint model work on GSM networks like AT&T or T-Mobile and work outside of the USA
[LG V20 Questions & Answers] prosaschi:
Thanks for the feedback!
[LG V20 Questions & Answers] david279:
Worked for me. Running on T-Mobile right now.
[LG V20 Questions & Answers] getoffmeluckycharms:
Are you getting LTE?
[LG V20 Questions & Answers] david279:
B4,B2 and B12. Data working.View attachment 4163513
[LG V20 Questions & Answers] getoffmeluckycharms:
What app are you using that shows the band you're on? And that's good to know, thank you!
[LG V20 Questions & Answers] david279:
Signal check pro

https://play.google.com/store/apps/details?id=com.blueline.signalcheck
[LG V20 Questions & Answers] williamschromebook:
I had it working the other night. I have a customer who wants tp purchase the phone so I did a factory data reset to verify it would stiill be good after. I reset the phone and now I reinstalled the app, as with last time, I set the phone into lab mode, then went to the LTE submenu, selecting apn and add new, but there is no APN there, and when I select "add new" it does not add one.

Help me get re-aligned real quick?
[LG V20 Questions & Answers] hyelton:
If you have the US996 you should be able to add the APN the normal way of adding one in the settings menu.

If your just quoting a random post and have the Sprint LS996 then under the LTE submenu you select add apn, then enter your APN settings and save it.
[LG V20 Questions & Answers] spocko:
Questions:

1) What LTE bands are available on the LS997 after unlocking with this method? The published specs I have seen do not include band 17, which I believe is one of the major LTE bands for AT&T. If that band is not available then it seems like this phone might have limited LTE on AT&T. In the bright side, it looks like all the T-Mobile bands are supported.

2) Are there any advantages/disadvantages of using this method instead of asking Sprint to unlock the phone? (assuming the phone is eligible for unlock)

Thanks in advance for any info.
[LG V20 Questions & Answers] hyelton:
The bands that the phone supports is available via this method. Nothing less and nothing more.

Usually sprint only internationally unlocks the device.
[LG V20 Questions & Answers] spocko:
According to this table, LTE band 17 is a subset of band 12:

https://en.wikipedia.org/wiki/LTE_frequency_bands

This discussion has some more detail, and says that AT&T now supports band 12:

https://www.reddit.com/r/tmobile/comments/40eodh/band_12_vs_band_17/

This lead me to think that the LS997 may work well on T-Mobile or AT&T. Can confirm or deny this?

And one more question:

Could LG disable this unlock method in future software updates? If yes, then anyone who is using this method should be careful about accepting software updates.
[LG V20 Questions & Answers] getoffmeluckycharms:
The LS997 works perfectly on T-Mobile. With T-Mobile sharing most of the same frequencies that AT&T does I'm sure it would work well there too, although I don't VoLTE would work like it does on T-Mobile.
[LG V20 Questions & Answers] hyelton:
VoLTE won't work but yes it works fine on T-Mobile and AT&T.
[LG V20 Questions & Answers] spocko:
It appears that the answer is yes, this unlock method could be disabled by future software updates. I just read through the G5 thread linked in the first post of this thread, and found this comment from [MENTION=2607037]hyelton[/MENTION]

"No one will know till it happens. It won't be patched with the G5. But still can happen with the V20. It got patched on the G6."

Full post is here:

https://xdaforums.com/showpost.php?p=72662359&postcount=201

So, if you are using this method and want to play it safe, you might want to disable software updates. That should be possible by disabling the correct package(s) using a tool like these.

https://play.google.com/store/apps/details?id=com.lgpd.pmanager&hl=en

https://play.google.com/store/apps/details?id=com.kunkunsoft.rootpackagedisablerfree&hl=en
[LG V20 Questions & Answers] dbpaddler:
anyone know why the hiddencall app won't install because the "package appears to be corrupt" ?? I have a Sprint G6 that's UICC unlocked, but it doesn't see the Tmobile SIM. Thought this would solve it, but I can't install the app to save my life, and I've downloaded it direct to the phone, to the pc, to dropbox and then to the phone. No dice. Same error.

Any help would be appreciated.
[LG V20 Questions & Answers] hyelton:
If you device has been updated you can only unlock via a paid remote unlock service. App won't work with the G6 once updated as posted above your post.
[LG V20 Questions & Answers] dbpaddler:
Even though the UICC unlock says it's unlocked and sprint says it's unlocked for domestic and international use?
[LG V20 Questions & Answers] hyelton:
I can't comment on that on UICC unlock as I've never seen it work domestically at all.

But this method was patched via an update for the G6. And normally only method is remote unlock.

You do have you network setting set to GSM/WCDMA/LTE correct? If is still set on the default CDMA/LTE it won't work.
[LG V20 Questions & Answers] dbpaddler:
I have it set on automatic as there is only GSM/WCDMA. No LTE option with GSM. Talking to the sprint tech guy now.

It's just so laughable how the new law says they must allow phones to be unlocked, but they made no provision for them to have to make the phone actually useful outside of their service. They hide options, bands and so forth to make them only slightly usable if at all. And the idea they would patch something that goes against the purpose of having to unlock a phone you actually own. It's all a joke really. And one of the reasons I parted out our sprint account and play in Tmo's and Sprint's camp with about 15 lines or so.

But if this is such a pain in the ass to legitimately use a phone elsewhere, I'm just canceling my additional sprint line. I'll wait for a Tmo deal to take advantage of and just sell the G6. Shame. Would've been nice to try out, and with digitz, who needs wifi calling?
[LG V20 Questions & Answers] hyelton:
Remember that unlock thing doesn't apply with Sprint. Sprint is a CDMA provider. And if it wasn't for LTE / device having LTE it wouldn't even be physically possible to use it with another carrier other than Verizon as an example.

What happens if you set it to gsm/wcdma?

Did you go to settings, active device (or something simuler its towards the bottom and select UICC unlock? I think that will only work if you have your old sprint sim in the device. It might work if connected to wifi i don't know.
[LG V20 Questions & Answers] dbpaddler:
I do know sprint is CDMA like Verizon. Not my first rodeo here... Haha.

I called sprint, had them unlock it in their system. Them I went to the uicc unlock on the phone and it said it was unlocked and could be used anywhere. Then I put the Tmo sim in and restarted the phone. Got the no sim message. Networks is grayed out. No access to anything network related. Put the sprint sim back in. Chose the GSM/umts option. Put Tmo sim in and nothing. Tried to add a Tmo apn but it wouldn't let me save it.

I'm out no money. Can sell it for over $300 and put it towards a nice set of Def Tech Mythos STS speakers for my theater room and call it a day... Haha.

Am going to hard reset the phone first with the Tmo sim in when I get home tonight and don't need my phone for a few. If that doesn't work, then I'm doing the above.
[LG V20 Questions & Answers] hyelton:
Sell it and buy an unlocked AT&T one or T-Mobile on :D I had a Sprint G5 as a spare line on T-Mobile. Sold it due to many software issues I had with it. still been thinking about buying another but this time a GSM version.

My G5 was also "unlocked" but would only work with international sims. Same goes for my sprint moto E 2nd gen unlocked but only works with international sims
[LG V20 Questions & Answers] dbpaddler:
Well I have my Note 4 for backup and a moto Z Play on my Tmo line. Tmo pissed me off because they don't certify the Z Play for wifi calling. BS when the G4 Plus has it as does the G5. Doesn't really matter if you go the digitz route, but why should I have to use another app do do something that should be built in?

So having a new flagship would be nice,but isn't necessary. And besides, my slide out keyboard for the Z play is coming in a couple months so I can geek out old school and be productive with office apps and such again.

I'll hold out for the Note 8.
[LG V20 Questions & Answers] dbpaddler:
And I got it working. But as soon as it restarts, it doesn't recognize the SIM. Tried it twice. Think I'll just reset and sell.
[LG V20 Questions & Answers] dbpaddler:
Update if it helps anyone. I enabled developer options and turned on OEM unlock. Restarted the phone and it was still working on Tmo after. Seems like that did the trick. Reset the phone to do a restore since I can't get LG switch to work via sd card and wireless said it'll take like 2 days... Haha. Will go through the same steps and then restore and keep my fingers crossed.
[LG V20 Questions & Answers] tiquiziacr:
Hi! just a question, the US Cellular carrier LG v20 us996 is also unlocked??? Or it is locked to US Cellular?
[LG V20 Questions & Answers] HD2FORNICK:
So does this truly unlock the phone permanently or is this a temporary software workaround?
[LG V20 Questions & Answers] hyelton:
It's software. There is never a complete permanent unlock for Sprint devices.
[LG V20 Questions & Answers] HD2FORNICK:
Thanks. I was wondering about that. So every time I get a FW update I lose this and could make this software useless? :crying:
[LG V20 Questions & Answers] DavidBeckett.db:
Sprint LGV20 ls997

Hi , I am immensely enjoying this post i am no longer a sprint customer now with metropcs..my question is this , i downloaded hidden call menu apk set it all up it all works super except for one thing they put my metropcs sim in from other phone and setup up with imei...all features work except i cannot place calls or recieve calls...it just sits there attempting to place call but nothing...i get lte great and all and can text fune but cannot make or receive calls..mdtropcs support even tried to help ...Can anyone here please help me so i can use my lgv20 with metropcs....let me know what to do ...great work to team who created app...its awesome..I appreciate any or all help i could get ...Thanks
[LG V20 Questions & Answers] hyelton:
Did you make sure the network setting is set to GSM/WCDMA/LTE?
[LG V20 Questions & Answers] DavidBeckett.db:
Lgv20 ls997

Yes that network setting is enabled then rebooted ...got lte and almost full bars could text and had internet on mobile networks , data working good just can't make or recieve calls..

---------- Post added at 10:37 PM ---------- Previous post was at 10:33 PM ----------

Is there anything else i can try i am so close to using my sprint lgv20 on metropcs i opened network settings and they even said all the network info was looking great....i am this close so if anyone can help i appeeciate..
[LG V20 Questions & Answers] hyelton:
Try setting it to GSM/WCDMA? And see if calls work or service works?

Don't want to offend anyone who may work at a phone store but about 95% of all carrier stores in the US wouldn't even know what the settings even do lol. I will say the people over at my local MetroPCS store know there stuff though.
[LG V20 Questions & Answers] DavidBeckett.db:
Lgv20 ls997

I also want to clarify that i was one who swapped sim from my working phone to the lgv20 to use with metropcs and i showed the guy at store that the hidden menu call app is now the default app since you cant just go in the normal settings on phone and set mobile networks or apn settings..i am just grasping at straws here and am this close to getring it fully working except for calling i will try the gsm/wcdma setting that someone said but everytime i change setting and try to get metropcs working again on lgv20 i have to either call metropcs or go in store since they have to plug the sim # and imei # into system ...i will try that setting and if anyone else has something to offer to get calling working ..thanks.

---------- Post added at 11:53 AM ---------- Previous post was at 11:41 AM ----------

I forgot to ask if anyone knows if i change setting in hidden menu call apk if i change to gsm/wcdma will i still get the lte and all like i was before ?

---------- Post added at 12:00 PM ---------- Previous post was at 11:53 AM ----------

Since hidden menu call apk is now the default app for changing settings i am just making sure that i no longer go into my normal phone settings on my v20 in mobile networks and do anything right? Nothing in the normal settings with mobile networks get set or anything correct?
[LG V20 Questions & Answers] hyelton:
You won't get LTE on GSM/WCDMA. But it will test if for some reason the phone is not dropping down correctly as you cannot place calls on LTE as you won't get VoLTE.
[LG V20 Questions & Answers] DavidBeckett.db:
When i attempt to place call the lte goes completely off and starts searching when i hang up lte comes back on..
[LG V20 Questions & Answers] hyelton:
Yeah as it's supposed to drop down that's why to try GSM/WCDMA and see what happens.

You did enable all the check boxes for the bands under the hidden menu app correct? I believe it's below where you change it to lab mode.

On your other phone that works normal do you get service when setting it to GSM/WCDMA?
[LG V20 Questions & Answers] spocko:
MetroPCS does not allow you to change devices by simply moving the sim card. The device IMEI and sim card both need to be registered in your MetroPCS account. If you want to switch devices, you need to call them and give them the IMEI of the new device.

[MENTION=6396253]DavidBeckett.db[/MENTION] Are you sure they added the IMEI of the V20 to your account?
[LG V20 Questions & Answers] erchik:
Updated to zv8 after that the phone does not accept the sim and the hiddenmenucall does not work((

You can update it to make it work
[LG V20 Questions & Answers] hyelton:
Yeah it was patched awhile back once updated there's no other way.
[LG V20 Questions & Answers] spocko:
Which phone model do you have?
[LG V20 Questions & Answers] erchik:
sprint ls997
[LG V20 Questions & Answers] spocko:
Interesting. I didn't even know ZV8 was available for the LS997. I haven't seen any info about it. Do you know when it was released? Or did you mean ZV7?
[LG V20 Questions & Answers] erchik:
Update arrived yesterday

---------- Post added at 07:08 AM ---------- Previous post was at 07:06 AM ----------

On zv7 worked without problems
[LG V20 Questions & Answers] 777Nalsur777:
Dear vlad48, Is there any way to get it work again?
[LG V20 Questions & Answers] hyelton:
If you updated and it was patched, sadly no.
[LG V20 Questions & Answers] erchik:
I unblocked with the help of a programmer
[LG V20 Questions & Answers] hyelton:
Yeah normally they can still be remote unlocked.
[LG V20 Questions & Answers] 777Nalsur777:
Can someone send me a PM with link for unlock my device?
[LG V20 Questions & Answers] hyelton:
Link for what? If it's patched you need to find a service on eBay or website. Someone has to remotely do it.

If it's not patched links are in the OP
[LG V20 Questions & Answers] AS959595:
is there another way to do this with zv8 update ?
[LG V20 Questions & Answers] vlad48:
As already several times explained and updated in OP only 2 ways after ZV8:

1. Remote unlock service (search ebay or check this thread)

2. JTAG unlock via OctopusBox
[LG V20 Questions & Answers] forward1987:
hi guys

i have las997 whith ZV7 firmware

try install hidden menu - than activated Lab Mode

instal GSM sim card - change settings mode from CDMA to GSM/WCDMA

and nothing work (((

reboot phone , change other sim card

i only see message that Invalid SIM

what i do incorrect ?
[LG V20 Questions & Answers] RickyShade:
I just got an unlocked Sprint V20 and I'm wondering if someone here could help me with a couple of questions. Is there a way to know if this method of unlock was used? Does the hidden menu app have to stay on the phone for it to stay unlocked? I have no idea how mine was unlocked and I'd hate to not be able to upgrade to ZV8 (I've done two updates since I got it last week and it's on ZV7 now) or Oreo when/if it comes out for the V20. Thanks in advance if you can help!