Sprint LS755 GSM Unlock - Android Q&A, Help & Troubleshooting

Today i'm finally able to unlock my LG X Power LS755 (Sprint) to use with GSM, thought a quick post may help others.
The method i used is the method to unlock LG G5 Sprint, which can be found here: https://forum.xda-developers.com/sprint-lg-g5/how-to/guide-gsm-unlock-sprint-lg-g5-t3574819
After that i can use it with GSM Network, but i can not put in the APN settings yet. I can not change the APN in the IOT menu, maybe i can use the ##3282# DIAG menu to change, but will have to get the MSL code first. Can you suggest the best way to get it?

APN is Unavailable to Edit

Try long pressing the tasks button while in the iot/lte apn menu.. I couldn't figure out either, until I read a few pages of posts on that thread

If you get your msl code, the above method does work. I can verify that. I couldn't get the LTE to work at first because the guide is not working exactly the same, but if you enter the code ##3282# and go under the LTE section, tap on the LTE and it will say view/edit. from there you will need the msl code to edit. You can then turn on the LTE. Also editing the apn was as was previously posted in the last post. Just long press task button on the apn under the IOT section in the hidden menu app from the first post link. To get the msl code for boost you can set up an account if yours is deactivated and not pay. they will forward you information to use at a later time by email which will include your msl. Pretty nice hack. If you're account is active you can call for it or there is a way to do it by phone without talking to someone by button options which you can Google something like "get boost msl without talking to a person" or whatever. There is a guide for it I've seen. I hope this helps. FYI, I've used it on MetroPCS, but still when the network switched you get a stupid temporary notification saying the network is blocked. you can just dismiss it. I wish there was root to use xposed notifyclean, but that's life.

it will work with virgin version?

My LS755 doesn't unlock at all
ngominhnguyen said:
Today i'm finally able to unlock my LG X Power LS755 (Sprint) to use with GSM, thought a quick post may help others.
The method i used is the method to unlock LG G5 Sprint, which can be found here: https://forum.xda-developers.com/sprint-lg-g5/how-to/guide-gsm-unlock-sprint-lg-g5-t3574819
After that i can use it with GSM Network, but i can not put in the APN settings yet. I can not change the APN in the IOT menu, maybe i can use the ##3282# DIAG menu to change, but will have to get the MSL code first. Can you suggest the best way to get it?
Click to expand...
Click to collapse
Hey! I have a LS755 virgin and first unlock without troubles buy I make a hard reset and It cannot unlock anymore. What firmware version do you have? I have the LS755ZV9 thanks!!

nismo87 said:
it will work with virgin version?
Click to expand...
Click to collapse
Yes it work but if your phone have firmware ls755ZV8, if you update your firmware to LS755ZV9 doesn't work anymore. The Hidden menu app not show the options you need.

My phone is relocked after updating to ZV9. There is no solution yet. You better disable the update before ZV9. Now the best chance i think is getting the MSL code to use with the Diag Menu.

i need help with my phone LG X Power (boost mobile)
hi there, I have a LG X Power (LS755ZV9) I purchase this cell phone in the street and was unlocked to any company. the cell phone is from boost mobile, but I have a sim card from Claro ... The phone do not recognize the sim card .
IMEI of phone: 358756071920230
I reseted it from the factory and that's where the problem started.
In fact, I speak spanish, I got help from the translator too. I know a little.
A technician told me that apparently I have to download the previous version to be able to unlock the phone.
What would that version be? Or What I have to do, or to download?
I'll appreciate your help. :silly:

jlen777 said:
hi there, I have a LG X Power (LS755ZV9) I purchase this cell phone in the street and was unlocked to any company. the cell phone is from boost mobile, but I have a sim card from Claro ... The phone do not recognize the sim card .
IMEI of phone: 358756071920230
I reseted it from the factory and that's where the problem started.
In fact, I speak spanish, I got help from the translator too. I know a little.
A technician told me that apparently I have to download the previous version to be able to unlock the phone.
What would that version be? Or What I have to do, or to download?
I'll appreciate your help. :silly:
Click to expand...
Click to collapse
We already say it. You need to read before ask. You need LS755ZV8. But its no way to make downgrade

jlen777 said:
hi there, I have a LG X Power (LS755ZV9) I purchase this cell phone in the street and was unlocked to any company. the cell phone is from boost mobile, but I have a sim card from Claro ... The phone do not recognize the sim card .
IMEI of phone: 358756071920230
I reseted it from the factory and that's where the problem started.
In fact, I speak spanish, I got help from the translator too. I know a little.
A technician told me that apparently I have to download the previous version to be able to unlock the phone.
What would that version be? Or What I have to do, or to download?
I'll appreciate your help. :silly:
Click to expand...
Click to collapse
I can unlock any lg phone sprint or boost or virgin ) with any version !))

LIAM83 said:
I can unlock any lg phone sprint or boost or virgin ) with any version !))
Click to expand...
Click to collapse
How?

had my ls755 unlocked works on calls but no text and every time i reboot hands free activation comes up im on ls755 v9 still can make calls after reboot

picsles said:
How?
Click to expand...
Click to collapse
but does it unlock it fully im on lg ls755 v9 and guy unlocked mine with octoplus it unlocked but didnt do away with hfa and also sms texts dont work right i can recieve them from my carrier but not from individuals and cant send them either

Hey guys! Do anyone know how to find/port a TWRP recovery for k220dsf (with mtk processor)?

how to get msl code? i have octoplus box but i cannot enter diag mode

LIAM83 said:
I can unlock any lg phone sprint or boost or virgin ) with any version !))
Click to expand...
Click to collapse
Hey can you do this for me?

Solution!!
ngominhnguyen said:
Today i'm finally able to unlock my LG X Power LS755 (Sprint) to use with GSM, thought a quick post may help others.
The method i used is the method to unlock LG G5 Sprint, which can be found here: https://forum.xda-developers.com/sprint-lg-g5/how-to/guide-gsm-unlock-sprint-lg-g5-t3574819
After that i can use it with GSM Network, but i can not put in the APN settings yet. I can not change the APN in the IOT menu, maybe i can use the ##3282# DIAG menu to change, but will have to get the MSL code first. Can you suggest the best way to get it?
Click to expand...
Click to collapse
la manera en que configuré es la siguiente yo lo busque y no encontre en el foro si ya esta favor de avisar para eliminar
primero desactivamos datos y hacemos lo siguiente:
1 bajar apk HiddenMenuCall y acceder
2 entrar en opción IOT(CDG2)
3 LTE setting
4 APN Setting
5 Dejar apretado el cuadro hasta que de la opcion de Nuevo apn
6 configurar el apn de acuerdo asu compañia
7 apretar otra vez el cuadro para Save
nos salimos con la flecha de atrás y ya activamos datos
posiblemente reiniciar equipo si lo requiere.

can you help me to unlock my phone LG ls777 zva

can you help me to unlock my phone LG ls 775 zvd?

Related

[Q] I cant activate call wait atrix problem! help

I have an at&t Atrix unlocked and used for Telcel here in Mex, successfully rooted via GingerBreak. Everithing works great and i unlock the tether .
My problem is than i can activate the call whait!!!! I go to
menukey: settings: callsetings: adittional settings:i touch the Call waiting checkbox to activate and the check box is uncheked(activated call whait),
when i go back whit the back boton and i back to check if the box is uncheked(its checked)!!!!(its desactivate the call whait)
What i can do!! Whith another cel works fine the call whait ,but the atrix have this problem, i have the spanish language configurated....
Is there a menu-save option?
Sent from my MB860 using XDA Premium App
there is not any save option!! and my atrix its 1.83
Do you have to have call waiting as a service from your provider for this to work?
yes i have, when i move mi chip to another cel and i activate works fine!! but when i insert in the atrix i have that problem maybe its a problem because mi cel its att.t and i have telcel mexico?? can i check whit some explorer, but where i search...

[Q] triying to unlck galaxy s2 cant put the code

hi i have buy the galaxy s2 and I was trying to unlock it bye the free program and then i buy a code and I still cant unlock it because when I put my att simcard it says network lock....i have the network lock code but I cant put it because it dont show me the option....how i can do to put the code and enjoy my galaxy s2 unlocked????
the phone is supposed to ask you for a code if it detects a wrong SIM card.
if it doesn't ask you for it, I am sorry put I can't help
Network unlock and dismiss button only when trying to unlock samsung with Claro carri
I Have the same situation here . It looks like it is with all the phones that are under Claro in Puerto Rico. Even thus we have an unlock key , there is no way to enter it since when you boot it with another SIM card it only shows a "Network Lock " message keylock pad logo and a "Dismiss" buttom. So no where to enter the codes. Can anyone please help or I will need to sell my galaxy to a Claro subscriber.
Thanks
Dev section unlock post .
http://forum.xda-developers.com/showthread.php?t=1064978
jje
same here what I need to do for ask me the code? ??
Hi dev
I did all that using the Unlock sim application by chanfire.
1. I use Odin
2. Use superoneclick
3. Run the Galaxy unlock sim app
4. got my code and write it down.
5. Reboot phone with ATT sim card
6.Phone reboot with a keylock pad screen, "Network locked" and the only thing theat let me to get off that screen is a buttom that reads "Dismiss"
There is no way to enter codes , no place at all. I wonder if there is something claroin PR did to the phones ?
tx
Why you didn't just buy the int'l version of the galaxy SII like many of us have done here?
I did not because i received this unit from a claro user that was transfer to India and he sold it to me (2 weeks ago) , that is why . But I will be selling it to any claro user who might want it since I cant get thru all this and then I will buy an international one.
Thanks any way for everything . Looks like there is no way to go around this.
put in a foreign network so
card, and it'll give you emergency call only screen, punch it in there
Sent from my GT-I9100 using XDA App
Nop still does not work.....
Any luck with that?
I was about to buy a Claro Puerto Rico Samsung Galaxy S II, but I do need to unlock. Lucky for me I read your post. Is is possible to unlock these?
when you put another sim and it doesnt ask the code u have to change the room, because the stock room is blocking the input message

[Q] How to imei unlock Galaxy i9100 Telcel

Hey guys hope you can help me.
I bought the code to unlock the network on my galaxy i9100, currently is locked to telcel mexico.
The thing is that I put in an AT&T sim card and no imput is displayed to enter the unlock code, when I put a T-Mobil sim card a blue lock is displayed saying Network Lock and a button sayin dismiss but no input to capture the code.
So what should I do? I was seaching in several posts and I think that changing the rom to another not from telcel can allows me to capture the unlock code, do you know if that is true? if so, can you tel me, what ROM is compatible to my samsung galaxy I9100 from Mexico ?
Thanks.
SIM Unlock SGS2 Telcel
Hi, I got last week my SGS2 for Telcel and I'm afraid you waste your money with the code, don't worry I also bought an usefulness code.
I did these steps:
DIAL *#SIMLOCK# (7465625) you will have a popup displaying Personalization status, the option NETWORK LOCK [YES] means your mobile is locked for TELCEL, the other options displays OFF.
IF you have NETWORK LOCK [OFF] means your mobile is SIM unlocked.
First you need to root your device, look in the forum how to do that and download busybox.
Well to unlock download from the market the app Galaxy_S Unlock market.android.com/details?id=com.helroz.galaxysunlock (it works with S and SII)
Open the app and follow steps, WARNING there are two steps for number two, I used second one.
Once finished, reboot the mobile and dial one more time *#SIMLOCK# you will have now NETWORK LOCK [OFF]
However I installed a SIM from IUSACELL it doesn't work, what worked for me was downgrade the the version to 2.3.3 reboot with IUSACELL simcard adn voila it is working. After IUSACELL simcard is accepted I upgraded to 2.3.6
You can change the version, root, no matter which change, even restore to Telcel image and the mobile will continue unlocked.
I hope it works for you, if you have any problem just let me know via DM or my twitter @D4N13L0G
hugeband said:
Hi, I got last week my SGS2 for Telcel and I'm afraid you waste your money with the code, don't worry I also bought an usefulness code.
I did these steps:
DIAL *#SIMLOCK# (7465625) you will have a popup displaying Personalization status, the option NETWORK LOCK [YES] means your mobile is locked for TELCEL, the other options displays OFF.
IF you have NETWORK LOCK [OFF] means your mobile is SIM unlocked.
First you need to root your device, look in the forum how to do that and download busybox.
Well to unlock download from the market the app Galaxy_S Unlock market.android.com/details?id=com.helroz.galaxysunlock (it works with S and SII)
Open the app and follow steps, WARNING there are two steps for number two, I used second one.
Once finished, reboot the mobile and dial one more time *#SIMLOCK# you will have now NETWORK LOCK [OFF]
However I installed a SIM from IUSACELL it doesn't work, what worked for me was downgrade the the version to 2.3.3 reboot with IUSACELL simcard adn voila it is working. After IUSACELL simcard is accepted I upgraded to 2.3.6
You can change the version, root, no matter which change, even restore to Telcel image and the mobile will continue unlocked.
I hope it works for you, if you have any problem just let me know via DM or my twitter @D4N13L0G
Click to expand...
Click to collapse
Thanks a lot for answer my question, I will root my device then.
Can you tell me, where did you get the roms? to downgrade to 2.3.3 and the other to upgrade 2.3.6.
Thanks.
pzyklone said:
Thanks a lot for answer my question, I will root my device then.
Can you tell me, where did you get the roms? to downgrade to 2.3.3 and the other to upgrade 2.3.6.
Thanks.
Click to expand...
Click to collapse
you can find them in this thread.
http://forum.xda-developers.com/showthread.php?t=1075278
Cosmic Blue said:
you can find them in this thread.
http://forum.xda-developers.com/showthread.php?t=1075278
Click to expand...
Click to collapse
Thanks for your help guys
What ROM is compatible, I downloaded one from the link above, one from telcel, and works fine the problem is that when I switch the sim card it says that is network locked, so I need another ROM but i dont know what is compatible with telcel, any help?
Thanks
thanks to hugeband here is the guide that he sent to me to downgrade the galaxy s2(telcel), the only proble, that I had, was that i return to android 2.3.6 from telcel, and the Rom is locking the sim card again....
to get the guide please send me a PM or to hugeband and we will send you the URL.
There's something odd, I unlock the galaxy s2 with the method described here and I am pretty sure that it is woking, since my GS2 is using now a T-Mobile sim card, well, the odd thing is when I switch the sim card for an AT&T sim card, the GS2 is still displaying the sim card error message.... I don't have the telcel rom anymore but this message is still happening. Odd thing.
Similar problem
Hi i have a similar problem. my network block is off but I still can't use my iusacell sim. The problem is that i am already in 2.3.3. What should I do?
The problem is that Telcel's modem is a locked one, so even if your device is "technically" unlocked, the modem file will keep popping that annoying lock thing.
1) Dial this from your phone*#7465625#
2) If you have the network lock off, go to next step, otherwise try to follow the second post of this threat until your network lock is off.
3) Flash any rom (or modem file if you wish to keep telcel's crappy apps) from here http://forum.xda-developers.com/showthread.php?t=1075278 After carefully reading the guide posted by Intratech and then try to switch sim cards again.
*As always be very careful before flashing anything and read all of the instructions. No one can take responsibility if you mess something up except for yourself... If you follow the instructions to the letter you should have no problems, as myself and others have done this before.
*If you have any more questions please post them in this threat so more people can learn, I will not respond to PMs.
http://forum.xda-developers.com/show....php?t=1075278 Not working anyother links or forum?? i cant seem to unlock mines, same telcel i tried helroz method but still cudnt work but wen i dial *#7465625# everthing is off

D620r network/modem (no IMEI no contacts) problem

Hello everybody!
I'm owner of Polish D620r (LG G2 Mini) and I decided to install some nice custom ROMs right after my warranty expired. I should actually do this even before because of enormous lags on Lollipop stock. Unfortunately I'm having weird issues with modem.
My story starts with new recovery (TWRP_2.8.7.0_D620.img.zip) downloaded dunno from where (probably XDA). Right after that I installed Cyanogenmod 13 (cm-13.0-20160107-NIGHTLY-g2m (1).zip) downloaded also from a thread on XDA forums. Everything worked fine expect there was no available network operators- no internet connection, no SMS, no calls, nothing (inb4 I had my real IMEI and contacts). Then I read some daub (trash) guides and installed wrong modem for my phone. That was a big mistake cause it generated a bootloop and reinstalling a CM13 didn't solve the problem. Also I'm worried now that my EFS has been corrupted.
I decided to download and install a stock (D620r20a00_flash_TWRP_SU.zip from XDA) and everything started to work again. I had LTE and T-Mobile.pl network. I thought my network problems are gone so I installed CM13 again but unfortunately nope. Since that my IMEI is now "00" and I have connection with operator only with 2G/EDGE/GSM. Every time I was trying to set Preferred network type for "LTE" or "3G" there was no signal (cell coverage) and was occurring notification "Connect problem with service T-Mobile". Thirty seconds later it was automatically changing for EDGE with full signal. Then I've got interested in CM and I realized that LineageOS is continuation of Cyanogenmod.
I downloaded and installed LineageOS 14 for my D620r (lineage-14.1-20170704-nightly-g2m-signed.zip) because OP of XDA thread said that every bug has been repaired. And that's not truth cause I still have the same problem- no IMEI and no LTE/3G internet (no LTE/WCDMA). Also LineageOS created new problem- I can't import contacts from SIM card.
Guys really I've already spent one week for trying to solve this problem and now I'm out of ideas and I need your help. I was trying to use any options for APNs, was creating new ones, was deleting all of them and leaving just one. I took modem.bin from lollipop stock and replaced it in .zip with modem for LG G2- didn't solve the problem. Then I tried to install these modems for LG G2- system wasn't booting so I installed back again that .zip with replaced modem for LG G2 mini and system is booting now but it's still EDGE. I entered /dev/block/platform/by-name/ and backup modem, modemst1 and modemst2 and then delete it or replace with others but still didn't make any change.
Most weird is that sometimes I have LTE or HSDPA+ for about 30 minutes. last day I had a record with 15 hours of LTE signal and then rebooted phone and again EDGE only.
Recently I put my SIM card to my girlfriend's ASUS and LTE was fully working.
What's also noticeable is that when I enter to Network operators and after refresh I click on "T-Mobile.pl" then I got message "registered to network" but few seconds later I have "No service" notification and sometimes (but not always) it finds service but still EDGE. But when I choose "Choose automatically" it finds services immediately and also still with EDGE.
I will add some photos soon.
For everybody who tldr- I've installed: stock Lollipop-->CM13-->LineageOS 14 and I don't have IMEI, LTE, HSDPA (only EDGE) and can't import or export contacts from/to SIM card.
Ps. I have the same LG model in my home in which wasn't installed any custom ROM and there is still stock.
I can't add photos uploaded to Imgur cause I'm new user on XDA and I need 10 posts :/
Try to go back completely to stock, using a .kdz file.
Then try again...
mobiusm said:
Try to go back completely to stock, using a .kdz file.
Then try again...
Click to expand...
Click to collapse
Installed .kdz stock (lollipop T-Mobile) with LG flash tool and still no IMEI
I'm tying to do this https://forum.xda-developers.com/showthread.php?t=2701861 but QPST Configuration doesn't see COM ports.
I'm stuck.
I read this https://forum.xda-developers.com/g2-mini/general/backup-partitions-including-efs-t2806161 and took all the of the files he wrote about from another LG D620r. There was LTE for a while but then again EDGE and no IMEI. This is really weird cause on this other LG D620r LTE works fine and IMEI appears.
My EFS is corrupted i think. I have backup from another LG G2 mini but LTE works only until reboot (no IMEI also).
I was trying to fix my IMEI from "0" to original but QPST doesn't find my device connected
Any ideas what to do?
lograste algo con el celular, yo tengo exactament el mismo problema, no soy tecnico en ello pero lo he mandado a dos lugares y no logran nada
iak iak said:
lograste algo con el celular, yo tengo exactament el mismo problema, no soy tecnico en ello pero lo he mandado a dos lugares y no logran nada
Click to expand...
Click to collapse
English, please.

Invalid Sim

Hi. I have a Sprint LG G5 that I gsm unlocked using the hidden menu apk. I received an Android update last night of 470mb. Since I updated the phone is showing Invalid Sim. How to get it unlocked again? The hidden menu apk now shows completely different menu options. I cannot access the previous menu anymore. Please help.
Maybe your device got sim locked again?
HELP
maidulhossain said:
Hi. I have a Sprint LG G5 that I gsm unlocked using the hidden menu apk. I received an Android update last night of 470mb. Since I updated the phone is showing Invalid Sim. How to get it unlocked again? The hidden menu apk now shows completely different menu options. I cannot access the previous menu anymore. Please help.
Click to expand...
Click to collapse
Good morning people, I have the same problem since I installed the last update and now it can not be able to get the signal, Please if someone knows how correct it, We appreciate your help.
help
maidulhossain said:
Hi. I have a Sprint LG G5 that I gsm unlocked using the hidden menu apk. I received an Android update last night of 470mb. Since I updated the phone is showing Invalid Sim. How to get it unlocked again? The hidden menu apk now shows completely different menu options. I cannot access the previous menu anymore. Please help.
Click to expand...
Click to collapse
I have same problem. Help us someone please . Thanks
The new zvc update blocks the hidden menu. Look in the sprint threads. Do not attempt downgrade or brick will occour. And there is apparantly no zvc tot or kdz yet so no fix. The only option is a 3rd party remote unlock service. That can also unlock the apn menu so you can have data also. If not you will get calls but no data or mms.
The resason for no downgrade is sprint and lg increased the antirollback increment higher so no zvb-zv8 any more.
But as history goes with sprint lgs. Everytime the anti rollbqck goes higher a firmware ussually gets released. Same seems true as for the sprint g4.
This happened to me as well, any luck finding a solution? We already have talked to Sprint, but they say the phone still is unlocked in their end, however the phone still says invalid sim.
Maybe try "Unlock UICC" under the system updates menu? I'm on factory rom with no hidden menu stuff. But had to do "Unlock UICC" even after Sprint said they had unlocked the phone for me.
When ever sprint unlocks and post lg g2 you have to also click uicc. They aprove it but its like a profile update
TheMadScientist said:
When ever sprint unlocks and post lg g2 you have to also click uicc. They aprove it but its like a profile update
Click to expand...
Click to collapse
whats a good remote unlock service? any links? I just tried one and they couldn't make it happen because of the update. any suggestions?
daveBLUE05 said:
whats a good remote unlock service? any links? I just tried one and they couldn't make it happen because of the update. any suggestions?
Click to expand...
Click to collapse
As being a XDA moderator I cannot recommend any sites i am sorry. Look in the gsm unlock thread several users have poted sites and ebays they have used there

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