Develop Bugs

[Q] Sim Unlock for Travel with Rooted DINC 2

So I have been googling for answers for a few days now and I can't really seem to find a straight answer. I will be in Europe this summer and have a DINC2 that I am bringing with. In order to use a foreign (non-Verizon) SIM card I have to unlock my phone. For a DINC 2 stock ROM you can easily go into settings->security->unlock sim and type in the unlock code (which I have already received from Verizon). I have rooted though and am running Cyanogenmod 7. There is no option to unlock SIM in this ROM. I found an answer online that says if you flash a stock rom then you can unlock, I have not been able to find a stock rom for the DINC 2 though (http://forum.xda-developers.com/showthread.php?t=1678250).
So here are my questions:
1) Does anyone have a link to the stock rom?
2) If I flash this ROM and unlock my SIM can I restore Cyangogenmod without losing my unlock?
3) Has anyone used a rooted DINC 2 outside of the US that has been unlocked from Verizon? If so, can I simply wait until I arrive at my destination and pop in the SIM card and type in my code that way?
Any help would be appreciated!

1) Stock based ROM: http://forum.xda-developers.com/showthread.php?t=1219471
OR
Complete RUU: http://www.filefactory.com/file/c25....01.1111_NV_VZW1.92_release_225831_signed.exe
2) I think it'd work but you'll have to try it yourself. Do you have a friend on a GSM carrier?
3) I have no idea but if the unlock is permanent, I think that's what you'd do.

Flashed the stock rom, unlocked the sim, and reflashed cyanogen. Everything seems to have worked great. I guess we'll see in a week if I can connect to a GSM network! Thanks for your help

According to Verizon the SIM unlock is permanent and you will not have to enter the code again. Even after flashing roms, stock restore, etc.

In addition, andyBonestock's ROM and SkyRaider's Zeus v1.3 Sense ROM are based on stock and I can personally confirmed them to be working in a rooted & Sim unlocked DI2. As VZW customer in good standing, you call Global Support & within 5 to 10 minutes, CSR will find the 8 digits unlock code and walk you thru the steps - scroll thru the Settings and input it, press the Enter key and DI2 will reboot after showing it's unlocked (yes, it IS permanent)
For voice & SMS, AT&T and T-Mobile (and, China Mobile HK) Sim cards will work (power down, insert Sim, restart) - broadband/WiFi access will need proper APN settings, and, account will need to be provisioned for data access.
DI2 was in GSM mode, unlocked & worked fine when we're in Bermuda last month.

Letitride said:
In addition, andyBonestock's ROM and SkyRaider's Zeus v1.3 Sense ROM are based on stock and I can personally confirmed them to be working in a rooted & Sim unlocked DI2. As VZW customer in good standing, you call Global Support & within 5 to 10 minutes, CSR will find the 8 digits unlock code and walk you thru the steps - scroll thru the Settings and input it, press the Enter key and DI2 will reboot after showing it's unlocked (yes, it IS permanent)
For voice & SMS, AT&T and T-Mobile (and, China Mobile HK) Sim cards will work (power down, insert Sim, restart) - broadband/WiFi access will need proper APN settings, and, account will need to be provisioned for data access.
DI2 was in GSM mode, unlocked & worked fine when we're in Bermuda last month.
Click to expand...
Click to collapse
Thank you so much for your information. Just wondering, are you still able to use global sim? I use MROM and if I reboot my phone after flashing the SIM is back locked again

startrek1312 said:
... are you still able to use global sim? I use MROM and if I reboot my phone after flashing the SIM is back locked again
Click to expand...
Click to collapse
Yes, affirmatively - Mrs. L has continuously run her red DI2 on SkyRaider Zeus and GSM mode is fine. I was running SR too - it had no problem when we're cruising down in the Caribbean islands - switched off CDMA to avoid roaming & data charges on the ship and on land, used my China Mobile prepaid Sim, great for voice and Int'l SMS - no data roaming as it is NOT provisioned for and tapped WiFi @ local Starbucks - locked onto a 3G AT&T tower in Old San Juan, PR. Every now & then, it might find & stay with a T-Mobile signal, but usually the Sim card settings prefer AT&T over T-Mo.
Currently, I'm running Nit's Stock Sense v5.0.m-ext4 Rom, it's global ready - works just as good - have played with all of the new custom Roms but always finding my way back to 1 of the 3 Roms mentioned here as the default. Have Currents, Google+, Play Magazine, Play Music & SoundHound, OneNote, QuickOffice and Wireless Tether running on mine - and I get to play the latest JB 4.2.2 on the Nexus 7 WiFi tablet, so this is fine for my needs.
Heading toward the end of our 2 year contract, main/primary line will be eligible for upgrade next month but I'm not in a hurry to let go of unlimited 3G data (although my usage has been consistently under 1GB/mo, mostly 500 MB or so. Already trying to re-sign me for another 24 months with an early upgrade Email offer that I must call in for ...

Verizon unlock code
Daveee6 said:
So I have been googling for answers for a few days now and I can't really seem to find a straight answer. I will be in Europe this summer and have a DINC2 that I am bringing with. In order to use a foreign (non-Verizon) SIM card I have to unlock my phone. For a DINC 2 stock ROM you can easily go into settings->security->unlock sim and type in the unlock code (which I have already received from Verizon). I have rooted though and am running Cyanogenmod 7. There is no option to unlock SIM in this ROM. I found an answer online that says if you flash a stock rom then you can unlock, I have not been able to find a stock rom for the DINC 2 though (http://forum.xda-developers.com/showthread.php?t=1678250).
So here are my questions:
1) Does anyone have a link to the stock rom?
2) If I flash this ROM and unlock my SIM can I restore Cyangogenmod without losing my unlock?
3) Has anyone used a rooted DINC 2 outside of the US that has been unlocked from Verizon? If so, can I simply wait until I arrive at my destination and pop in the SIM card and type in my code that way?
Any help would be appreciated!
Click to expand...
Click to collapse
I am planning the same thing: going to Europe next month with a recently rooted phone. Did you just call Verizon and they gave you a code? Did you tell them you were traveling or did you make up some sort of story? Thanks!
-Dave
---------- Post added at 02:05 PM ---------- Previous post was at 01:31 PM ----------
Also I am planning on flashing CyanogenMod very soon. I assume you would now recommend that I wait for the code and unlock the SIM before I do that, correct?

dml5064 said:
... Did you just call Verizon and they gave you a code? Did you tell them you were traveling or did you make up some sort of story? ... Also I am planning on flashing CyanogenMod very soon. I assume you would now recommend that I wait for the code and unlock the SIM before I do that, correct?
Click to expand...
Click to collapse
Things might've changed a bit at Big Red with the unlocking code, but not by much. First, I would strongly recommend using a near stock global Rom (Andy Bone's - the difference being that it'll stayed unrooted and 99.5% stock basically - Superuser installed.
You need to be a Big Red customer in good standing (bills are paid/current & on account for 3 or 6 months continuously) - and have a non VZW-Vodafone Sim (known working prepaid Sim from AT&T Gophone, T-Mobile, or foreign Sim for test & verification afterward) - phone should be S-off and unlocked, CWM installed if possible (so that you can make a full backup copy of your Stock Rom with APN/PRL (save it to a HDD, USB or Cloud storage)
Call up VZW from another phone line (mobile, home/office, VOIP or whatever - that they can call you back from if necessary - ie. disconnected while on hold) - from among the automated Menu option & voice prompt, select Tech Support for smartphone and/or Global Support - if you get routed somewhere else, ask them to forward to Global Support.
Give them your account info & verify, passcode and/or Soc. Sec. etc. - tell them you need to unlock the DI2 for travel and to be able to use another prepaid Sim card. S/he will read their scripts and inform you that you are responsible for charges, damages and will have no access to support - acknowledge & agree, they will ask confirm your email address & send you the written disclaimers, etc. You might be put on hold for a few minutes, do NOT hang up - make sure they have your immediate call back # - as they will need to go into their database & look up your IMEI's unlock code. Once they have it, they will come back on and walk you steps-by-steps, to go to the Start Menu and submenu, and get to the unlock screen - input the code (I believe it was 8+ digits) - and as soon as the last correct digit is entered, the screen will refresh & say unlocked. Next, exit & close those submenu, turn off & reboot the phone - whatever instructions, just follow it.
With your own "foreign/non-VZW" Sim already installed, you should be able to switch to GSM mode under Wireless & networks / Mobile neworks - and see the new "Carrier's Name" displayed and likely an (E)dge symbol instead of 3G, that is your confirmation of a successful unlock. It is permanent, regardless of switch & flashing to other Rom, etc.
That's it. Copy & flash your choice of Global Roms, unless you are planning to use the DI2 overseas or elsewhere and not using CDMA again ever, I recommend staying with one of the proven ones here - ICS/JB or 4.x ones are cool to play, but battery life is average at best - trust me on this one from personal experience while traveling. Customize & configure the Rom to your own liking - plenty of Google Play (Store) update once it is up & running as many of the preloaded Apps have been revised/updated many times since - best/fastest over a good WiFi connection - then, make both a TB backup of the Apps and a full CWM Recovery backup image - save them both to HDD/USB and Cloud Storage - mission accomplished.
For use within USA, you will have 100% working voice calling & SMS/texting with AT&T and/or T-Mo's GSM network, and 2.5G data only if your plan has data bundled as add-on, and the APN settings are auto-updated/loaded. That's about it - for as little as $30/mo - you can use this device for unlimited calling and texting, and works great when you are on broadband over WiFi. Load an offline Map like Nav free USA with maps (16GB or 32GB mSD is recommended for storage) and you can maintain turn-by-turn navigation on the go.
Any other questions, please feel free to ask and/or leave me a PM - and will try to address them as best as I can on practical usage. For technical help on specific Roms, the developers are your best friends. Good luck, enjoy & have fun.

[Q] Problem with phone already activated on VERIZON INC2

Dear All
first of all, sorry for my bad language.
my problem started when i purchased an used Inc2 from swappa, i am expert in flashing ROMs for HTC phones.
when i got the phone, i s-off, installed recovery and installed custom ROM supports GSM, as i am living outside USA, and everything was good (GSM and data)
one day, suddenly the phone was not able to get a H data, only E, so i decided to factory reset to solve the problem, i return to stock ROM using RUU, then when i turn it on for the first time i discovered that its still connected to verizon Network and gave me a roaming signal, i know nothing about verizon network or how to disconnect my phone from their service.
don't tell me to contact the original owner, because i purchased this phone more than one year ago and i totally forgot from whom i toke it.
THE MAIN PROBLEM NOW, every time i insert my local SIM, the phone switch from roaming mode (CMDA) to global mode (GSM), which is OK, but when i receive or make a call, it restarts automatically !!!!
i had tried all the ROM, RUU, radios in the development section, with no hope, so, i think the problem is occur from the conflict between CMDA signal an GSM signal!!!???!! or something else, so i guess the first thing i have to do is disconnect the verizon service, BUT HOW?? somebody please help me

any thoughts folks?

Can you post your phone's settings, mainly the ones under "About Phone" including kernel, mobile network type, service state & software information, etc.?
With a local Sim card, it is possible that you device would boot up & switch to Global Mode (by default) with preference for CDMA, but you should be able to manually change it & semi-lock it to GSM only? What happens when you tried that?
There is a # of GSM only Rom that you can flash, assuming you've rooted it again & maintained S-Off with a custom recovery re-installed - and, that it was properly Sim unlocked.

Im on GSM with chilly's beanstalk 1.30 (4.2.2) and I have no problems, check if a wipe with antivenomSDW, helps.
Sent from my ADR6350 using xda app-developers app

[Q] Device won't connect to any network

Hi, I have an SGH-I747M that was originally purchased through Bell. In an attempt to unlock to make it work on Koodo, I went through SamMobile (after reading there was no way to unlock post 4.3 OTA update) and that seemed to half work.They resell a service from 123unlock.nl which is a client that uses adb or something of the sort to mess with phone files. The program afterwards said "Your phone is now unlocked! However if you don't see any carriers you need to do something in the advanced option and pay another $2x.xx dollars to do so". I didn't feel like giving them any more money at this point because I was upset that what I originally paid for didn't work properly. The fix was apparently an option in the advanced options that was an NVM repair/rebuild or something of the sort. I should have screenshotted the issue but of course didn't.
Now, the phone will boot up and does not offer me a SIM unlock option anymore. When searching for carriers it will ever only find Rogers for some reason. It won't recognize Koodo or Telus or anything of the sort (or bell when my bell SIM is in). Every now and then when it boots up, it will successfully send a text but only within a 5-10 second time frame after boot (I've made 1 phone call as well for 3 seconds). I've tried the Koodo SIM in my own Nexus 5 and works fine so the network is okay at least (plus I called Koodo and they verified on their end things look good... if that makes a difference). The SGS3 won't even accept an original Bell SIM at this point. It's always on either no network, 1 bar or full bars, never anything in between. I've tried flashing different ROMs from Bell stock to Koodo stock and CM11 and it won't work no matter what I do. Under all ROMs it pops up an "ME Returned temporary error" message on the screen.
I'm hoping someone might have seen this issue before or know what's going on with the phone that I can fix. I'm assuming it's something to do with the modem part of the phone that's refusing to connect to carriers but I'm at a loss to fix it. I haven't tried flashing different modems on it yet because I'm unsure which one would be a good fix and no one has had roughly the same issue I could find in 3 days of Googling for this issue. Any ideas are greatly appreciated. Thanks.

sgtcanadian said:
Hi, I have an SGH-I747M that was originally purchased through Bell. In an attempt to unlock to make it work on Koodo, I went through SamMobile (after reading there was no way to unlock post 4.3 OTA update) and that seemed to half work.They resell a service from 123unlock.nl which is a client that uses adb or something of the sort to mess with phone files. The program afterwards said "Your phone is now unlocked! However if you don't see any carriers you need to do something in the advanced option and pay another $2x.xx dollars to do so". I didn't feel like giving them any more money at this point because I was upset that what I originally paid for didn't work properly. The fix was apparently an option in the advanced options that was an NVM repair/rebuild or something of the sort. I should have screenshotted the issue but of course didn't.
Now, the phone will boot up and does not offer me a SIM unlock option anymore. When searching for carriers it will ever only find Rogers for some reason. It won't recognize Koodo or Telus or anything of the sort (or bell when my bell SIM is in). Every now and then when it boots up, it will successfully send a text but only within a 5-10 second time frame after boot (I've made 1 phone call as well for 3 seconds). I've tried the Koodo SIM in my own Nexus 5 and works fine so the network is okay at least (plus I called Koodo and they verified on their end things look good... if that makes a difference). The SGS3 won't even accept an original Bell SIM at this point. It's always on either no network, 1 bar or full bars, never anything in between. I've tried flashing different ROMs from Bell stock to Koodo stock and CM11 and it won't work no matter what I do. Under all ROMs it pops up an "ME Returned temporary error" message on the screen.
I'm hoping someone might have seen this issue before or know what's going on with the phone that I can fix. I'm assuming it's something to do with the modem part of the phone that's refusing to connect to carriers but I'm at a loss to fix it. I haven't tried flashing different modems on it yet because I'm unsure which one would be a good fix and no one has had roughly the same issue I could find in 3 days of Googling for this issue. Any ideas are greatly appreciated. Thanks.
Click to expand...
Click to collapse
Can you check your phone's settings => About Device and let's know what parameters you have there (Android Version, Baseband Version, Build Number>.
You mentioned you can send text or make call within a limited time frame. Was that with the Koodo SIM or the Bell? If the former, it would suggest the phone is unlocked to some extent but you are probably experiencing a baseband failure or need to correct the APN settings. Did you also try doing a factory reset?

Larry2999 said:
Can you check your phone's settings => About Device and let's know what parameters you have there (Android Version, Baseband Version, Build Number>.
You mentioned you can send text or make call within a limited time frame. Was that with the Koodo SIM or the Bell? If the former, it would suggest the phone is unlocked to some extent but you are probably experiencing a baseband failure or need to correct the APN settings. Did you also try doing a factory reset?
Click to expand...
Click to collapse
The information you're asking for is attached.
The texts I got off were from the Koodo SIM. I have updated the APN as well, and I did do a flash back to stock resetting all settings through Kies emergency update. I found a little trick where if you softbrick it by trying to flash 4.1, it'll give you the "Please use kies" error and that'll take you back to full stock 4.3. I'm pretty sure the baseband failure is the option I need to explore but at this point I don't know where to go to fix this.
Edit: I read this online and tried it: "The 4.3 update introduces a "security feature" which requires carrier- or region-locked phones to be activated once on the original locked network before the unlock code will work." The phone didn't recognize any network with the Bell SIM in except "EXT" which I've never heard of before and it did not connect properly so that didn't work. I also read that inputting #7465625*638*# will give me the Samsung SIM unlock menu which it did however I don't think the issue here is with the root and I'd hate to pay $50 at this point to have that not work as well.

sgtcanadian said:
The information you're asking for is attached.
The texts I got off were from the Koodo SIM. I have updated the APN as well, and I did do a flash back to stock resetting all settings through Kies emergency update. I found a little trick where if you softbrick it by trying to flash 4.1, it'll give you the "Please use kies" error and that'll take you back to full stock 4.3. I'm pretty sure the baseband failure is the option I need to explore but at this point I don't know where to go to fix this.
Edit: I read this online and tried it: "The 4.3 update introduces a "security feature" which requires carrier- or region-locked phones to be activated once on the original locked network before the unlock code will work." The phone didn't recognize any network with the Bell SIM in except "EXT" which I've never heard of before and it did not connect properly so that didn't work. I also read that inputting #7465625*638*# will give me the Samsung SIM unlock menu which it did however I don't think the issue here is with the root and I'd hate to pay $50 at this point to have that not work as well.
Click to expand...
Click to collapse
It's unlikely to be the regional lock as this feature means your phone will work with compatible networks in the region but not in other regions. You may, however, run Chainfire's Region Lock Away to be sure <http://forum.xda-developers.com/showthread.php?t=2470551>
Your firmware settings look OK so I'd be doubtful about a corrupted modem. You may still try to re-flash the modem via custom recovery. Download link for the CWM flashable zip is available here ... http://www.androidfilehost.com/?fid=23252070760973552
The guys who sold you the original code seem to have sold a dud as there is no reason for them to be asking for secondary payments and this sounds like the footprint of a regular scam. I'd be surprised though as they seem to be well rated

Larry2999 said:
It's unlikely to be the regional lock as this feature means your phone will work with compatible networks in the region but not in other regions. You may, however, run Chainfire's Region Lock Away to be sure <http://forum.xda-developers.com/showthread.php?t=2470551>
Your firmware settings look OK so I'd be doubtful about a corrupted modem. You may still try to re-flash the modem via custom recovery. Download link for the CWM flashable zip is available here ... http://www.androidfilehost.com/?fid=23252070760973552
The guys who sold you the original code seem to have sold a dud as there is no reason for them to be asking for secondary payments and this sounds like the footprint of a regular scam. I'd be surprised though as they seem to be well rated
Click to expand...
Click to collapse
I've tried reflashing the modem and I've actually paid $50 for the unlock code from Bell, the original carrier. I used the code to get the network unlock menu and inserted the code. I still get between 1-4 bars now with no network access on either network. It's not showing anything except Rogers still in network operator selection.
Any ideas at this point? It refuses to connect to any networks. I'm out of options.
Edit: I don't know if this makes a difference, but when I do root explorer I can't actually find the nv_data.bin file. It doesn't have anything of the sort in the /efs folder.

sgtcanadian said:
I've tried reflashing the modem and I've actually paid $50 for the unlock code from Bell, the original carrier. I used the code to get the network unlock menu and inserted the code. I still get between 1-4 bars now with no network access on either network. It's not showing anything except Rogers still in network operator selection.
Any ideas at this point? It refuses to connect to any networks. I'm out of options.
Edit: I don't know if this makes a difference, but when I do root explorer I can't actually find the nv_data.bin file. It doesn't have anything of the sort in the /efs folder.
Click to expand...
Click to collapse
Please let me understand a few things ... when you first acquired the phone, was it working normally on Bell prior to the first unlock attempt or you never used it at all until you tried Koodo? Secondly, was the unlock code you got from Bell identical to the one you got from the online service?
I'm trying to establish if it is a case of hardware failure not reported by the previous user especially if you bought it pre-owned from the secondary market. If you are not sure of the previous usage history, it could be a faulty or disconnected antenna which may require professional service. On the other hand if you are sure it was working fine prior to the unlock attempt, try the following ...
1) From the dial pad, enter *#197328640#
2) [1] UMTS
3) [1] DEBUG SCREEN
4) [8] PHONE CONTROL
5) [6] NETWORK LOCK
6) [3] PERSO SHA256 OFF
7) Press Menu => Back button and go all the way back to Step 3) above
8) [6] COMMON
9) [6] NV REBUILD
10) [1] NV REBUILD
Reboot and restart and let's see if this does it.

I've got a similar symtom different scenario (sister in-laws phone). I was also only able to see Rogers network on a search. I've got Telus version. It was working fine until it was brought to the Philippines, got unlocked there and brought back to Canada.
I was only able to see Rogers network until I went into the Service Menu (similar to above) and found the option to change the band. I changed it to Automatic. After that I was able to see Telus network. When trying to connect/register it would take a long time and give me an error "Unable to connect, try again later". I still need to do more troubleshooting, but that might be something to look at.
Note: Phone has stock MOD ROM, rooted and unlocked.

sgh-i257 Bell receives notifications but no network connection

I'll try to be brief. lol .Before finding this site I brought my unlocked S4 mini to wind to see if it will work. The guy found the 1700 freq in the phone service menu and changed something and said it won't keep on 1700 then he said something about the nv write. After a while he handed it back and said it wouldn't work. I put my bell sim in afterward it said no sim. it won't find any bell sim now. I tried a friends telus sim and it finds the sim fine and shows voicemail notifications but when I tried to call it says not connected to network. I can see the networks but when trying to connect, the signal drops and phone says "network not available try later". After it tries to connect the signal returns to normal.
So I found this site
I successfully rooted the phone with S4Mini_RootKit_v2.zip. It worked fine but had the same network problem. I fully rooted with cm11, then 12. Same problem.
I loaded a pit file gotten gaciously from sammobile. Same problem
I've returned all firmware to factory and undone root but still same issue.
The imei and serial number match the sticker on the back so they are not invalid.
The wifi and bluetooth and general operations are normal.
I'm guessing that the nv was rewritten and to recovery as well? But I really don't know as I am very new at this but have been doing a lot of reading.
1. Is there a way to restore the nv without a backup from my phone?
2. Is there a way to restore the service programming back to factory default? (I've seen this question asked before but only found the answer it is proprietory, whatever that means)
I have qpst and efs professional and a qcn file I was able to download from the internet
3. This qcn file is from unreliable source. Could I damage my phone more than it already is, and can i edit my imei and sn into it?
Thanks very much.

Manually edited
Miniwish said:
I'll try to be brief. lol .Before finding this site I brought my unlocked S4 mini to wind to see if it will work. The guy found the 1700 freq in the phone service menu and changed something and said it won't keep on 1700 then he said something about the nv write. After a while he handed it back and said it wouldn't work. I put my bell sim in afterward it said no sim. it won't find any bell sim now. I tried a friends telus sim and it finds the sim fine and shows voicemail notifications but when I tried to call it says not connected to network. I can see the networks but when trying to connect, the signal drops and phone says "network not available try later". After it tries to connect the signal returns to normal.
So I found this site
I successfully rooted the phone with S4Mini_RootKit_v2.zip. It worked fine but had the same network problem. I fully rooted with cm11, then 12. Same problem.
I loaded a pit file gotten gaciously from sammobile. Same problem
I've returned all firmware to factory and undone root but still same issue.
The imei and serial number match the sticker on the back so they are not invalid.
The wifi and bluetooth and general operations are normal.
I'm guessing that the nv was rewritten and to recovery as well? But I really don't know as I am very new at this but have been doing a lot of reading.
1. Is there a way to restore the nv without a backup from my phone?
2. Is there a way to restore the service programming back to factory default? (I've seen this question asked before but only found the answer it is proprietory, whatever that means)
I have qpst and efs professional and a qcn file I was able to download from the internet
3. This qcn file is from unreliable source. Could I damage my phone more than it already is, and can i edit my imei and sn into it?
Thanks very much.
Click to expand...
Click to collapse
I painstakingly manually edited using qpst and restored all changed setting to a previous copied save.

LG G5 sprint locked, desperate need for help

Hi, I have followed the hidden menu apk method carefully which didn't change anything in the phone, I took my phone to THREE repair stores in my country, one of them could manage to do calls with it but no mobile data then the other store updated it I think and nothing is working like at start, PLEASE I BEG YOU for help, I am willing to donate once it is fixed. I was told that some ebay sellers remote unlock it but I don't trust them or at least I want the person to try and then I pay him if it works but I don't want to waste my money.
If it helps, it is now on Software version LS992ZV9, android version 7.0, and there is an update waiting to be installed but I still didn't accept it. I read there is a downgrade guide but how can it help or are there other links or guides to follow? Please guide or help me, it's been more than a year I have this brick.

Truepeace said:
Hi, I have followed the hidden menu apk method carefully which didn't change anything in the phone, I took my phone to THREE repair stores in my country, one of them could manage to do calls with it but no mobile data then the other store updated it I think and nothing is working like at start, PLEASE I BEG YOU for help, I am willing to donate once it is fixed. I was told that some ebay sellers remote unlock it but I don't trust them or at least I want the person to try and then I pay him if it works but I don't want to waste my money.
If it helps, it is now on Software version LS992ZV9, android version 7.0, and there is an update waiting to be installed but I still didn't accept it. I read there is a downgrade guide but how can it help or are there other links or guides to follow? Please guide or help me, it's been more than a year I have this brick.
Click to expand...
Click to collapse
As I stated in PM upgrade 1 step to ZVA and stop there never again.
The the hidden menu hack will work....

Thanks a lot for the help, I updated from ZV9 to ZVA and the hiddenmenu guide helped me do phone calls but I still can't have mobile data although I set up the APN correctly and I read the tutorial 3 times.
I noticed that in step 8 it says to "Reboot" then if I go in the Hiddenmenu settings in " LTE Data roam config" where I enabled all bands before reboot, I see that "Bar Roam Enabled" is set back to "Disable" so after a reboot it gets disabled and the "mobile network state" in settings is "connecting". Any idea ? Thanks.
Edit1: If I also go in Access Point Names in the normal settings, the apn I put is not checked although in the Hiddenmenu app it is. (https://i.imgur.com/mYwiRB9.jpg)
And usually the carrier in my country sends a settings sms that automatically adds the apn to the phone but when I request it the setrings sms never arrives as if it is blocked by the phone.
I even tried adding the APN of the second carrier we have in my country using my friend's sim card and his apn settings but same results as before.

I don't understand how calls work but mobile data isn't! Does my carrier requires additional settings in the phone to be unlocked or is my phone super locked? No expert to troubleshoot my problem? Please.

Finally fixed! I followed wildantics steps by starting with a R&D factory reset (maybe it is not required so you can try without it first), then a tip to skip configuring your phone which worked from me is to SPAM tap the power, and volume up and down buttons (and I didn't have any sim card inserted).
Use the hiddenmenucall app, in IOT(CDG2), LTE setting, put Operation Mode to Lab Network, reboot, insert sim, reboot. Then in ModemProtocol, RAT Selection, choose GSM/WCDMA/LTE Auto, then in ModemProtocol, Network Mode, choose Automatic, add your APN by going to IOT(CDG2), LTE Settings, APN settings and in LTE Data roam config, enable all the bands.

Which software version did you have when you tried these steps?