[Q] Need help with qcn - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hi since this is technical, and Google has no answers for me at least I can't find any. I need urgent help on to repairing my imei on a qcn file, I can only use that since I will lose my AWS bands with Wind Mobile. I want to use the imei that is back of the battery and is same as my box that I have. I have 04 Imei right now. I don't know how to edit the qcn file with any hex editor, it's all bunch of algorithms of numbers and letters.

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How to modify the IMEI number?

Who can tell me how to modify the IMEI numbers?
I want to modify it, I have used the Wizard IMEI number tools and Prophet IMEI number tools, but they are all no useful to help me.
Please help me to modify IMEI numbers!
Quit cross posting..
http://forum.xda-developers.com/showthread.php?t=307260

[Not illegal] Information about IMEI and WM device

Hello my friend,
First, this topic is not in order to ask " How to change IMEI device", because it's illegal and it's very very hard of new HTC phones.
I'm software programmor and I programm in eVC for Windows Mobile.
I would like develop a tools about IMEI and Windows Mobile Device.
I would like to know if anyone know how Windows Mobile retrieve the IMEI ?
I know that the IMEI number is stored in OTP memory ( One Time programmable memory), but where is located this OTP ?
In the mainboard ? Or directly in the cellular modem ?
So i think that the GSM driver allow to seek the IMEI ?
It's right or no ?
Thanks a lot,
regards,
Nixeus
The IMEI can be read from registry: HKLM\Drivers\BuiltIn\RIL: IMEI
It is not safe (I believe it is only updated when the device is coming up after initial boot after upgrade) and can be changed - not impacting anything, e.g. *#06# will still deliver the correct IMEI.
Thanks my friend for your answer.
When i use the *#06#, do you know how the imei is reading ?
With an AT command and the cellular modem ?
Try it out - dial *#06# and see that you get. Then change the registry value and do the same - it will not read the registry. AT command I never tried, but I suspect it will also not read the registry.
Afaik, the IMEI is stored in encrypted format in some permanent part of the device memory. It should be accessible through some API calls to the RIL. As I am no programmer I cannot help you further.
hard to think of a LEGAL reason to be doing this anyway, the only reasons i can think of are writing a fake one (illegal) or spoofing it across the network (illegal).
If you just need to know what the IMEI is in your software for some reason then the registry entry mentioned should do it for you surely
Nooot !
I need to expand my knowledge.
Use the lineGetGeneralInfo function.
can be used for licensing method...for example a developer wants each copy can only be run on 1 device,this can be used
For example man, but i would like better to be able to read this imei in low level
Or directly from the cellular modem..

My IMEI is made up by a lot of 00000, but...

Hi,
seems like I've just noticed this issue, even if my last flashing (no, I didn't use that Odin option to clear efs) has been done 7 months ago.
The (italian) guide I have read when I bought the Spica back in June didn't mention ANYTHING regarding backing up the efs folder.
My IMEI is 00000000000000, but I can succesfully make and receive calls, sms, and use HSDPA data (Postemobile, a virtual operator working on Vodafone network).
My efs folder contains only a nv_data file.
My doubts are:
-If my IMEI is blank, why I haven't any problem at all?
-If I flash with ODIN a stock 2.1 firmware, can I recover the issue?
-I asked a friend a good nv_data file from an eastern Europe Spica, in an extreme case may I overwrite my nv_data file?
-Any hints regarding the policy of the US carriers if the IMEI is blank? It would be a problem if I couldn't connect to the mobile network. Last time ATT and T-Mobile worked well, but that was before the last ROM flashing, so I don't know...
thanks
Your nv_data file did get corrupted or deleted. This could happen if you ticked the option "Debug Only" -> "Phone EFS Clear" option in Odin.
When the file is broken or missing a new file is created at startup which does not contain IMEI data. Look if you have a nv_data.bak file in your efs folder. You can rename it and look if it fixes the fault. If there is no such file then you have a problem. This can't be fixed easily.
You can go to a professional unlock shop nearby and get a emei repair.
Ore you can contact this guy and get a fix for 20$:
h t t p://forum.samdroid.net/f28/complete-imei-restore-how-1817/
PS: The missing imei will not cause problems with the phone. The complete phone will work without a problem.

[help] need qcn file sm g6200 , a6s wifi won't turn on mac 02 00 00

hello ,
after flashing a6s with global rom , wifi and network dont work , i tried everything but nothing work , i think i earsed everything when i flashed with qpst , i tried edit qcn file but not working , qcn file show mac address but in my phone its showing 02 00 00 00 and my network showing no service , my bluetooth work normally .
after googling i found that to fix this issue i need original qcn file , so plz if someone can send me their qcn file and delete their imei i really need to fix this phone , thx .
Can u post link rom galaxy a6s global for me?Thanks!
Please help peleseeeee. .........
I accidentally erased the full flash on my Samsung Galaxy A6s SM_6200 i have the orignal rom with all the chinese stuff even i have rom with play store in my google drive i tried to flash every rom each of them worked really good even not a single problem i managed to root my samsung galaxy a6s sm-g6200 and even ported twrp for my mobile but one day after root i wanted to updated my mobile to the latest android version but when i was flashing my mobile with QPST tool i accidentally erased full flash as per there is no "PERSIST.img" file in my roms and I had no QCN File backup even not the backup of |PERSIST.img" i'm not able to activate my mobile becuase my wifi and network is not working and the issue is becuase of "PERSIST.img" and "QCN" File.
So if some please send me the backup of their mobile's QCN FILE and "PERSIST.img" file i will be really greatful to them as per my mobile will become usefull again in exchange i will provide you a sharing link of all the 4 working roms i have in my google drive <3 Please HELP
Did you find any solution ???
if yes so please send me the qcn file and persist.img please i have the same problem
samsung a6s Wifi and mac address issue resolved
Hi there i have solved the same problem after getting help from my recent friend <3
I will be honored to help you with this problem as per there is a saying that always spread the good.
My recent friend helped me now i will help you <3 and i hope you will also help if someone is in the same or related problem <3
Dm me on whatsapp with your name and issue i will guide you with proper steps there <3 +923328805238

Has anyone got a Lenovo Z6 Pro QCN file I could have?

I received a Lenovo Z6 Pro phone on monday with "global rom" which had QCN file messed up. not only that, it has Wlan and modem messed up too. All that could be fixed by using ZUI.com/iunlock website's provided unlock .img file, but for that i need to provide the site with imei and serial numbers.
Problem is - until my phone connects to cellular network and it's imei is registered as active, that site will not acknowledge my imei1.
To do that, first I need a working qcn file. I can rebuild the qcn file with MY imei's but I need a genuine z6 pro qcn and I can't seem to find any to download anywhere
so, please... if any1 knows where to get it or has theirs backed up - would really help a lot!

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