[Q] Emf / IMEI - Android Q&A, Help & Troubleshooting

Hello.
I recently modified my s5830i (Samsung Galaxy Ace) with different ROMs. After some modding I did see that i could not call. When i tried to call it came up with the message "Mobile network not available". After some research and stuff i figured out that it was a problem with my IMEI or EMF. I did check my emf folder in my device and saw that it did not contain any content, whole folder was empty. Now my question is; Can I somehow restore it? I have mt IMEI number but not any file for the folder. If anyone can help me I would be very thankful!

Related

nv_data.bin modified each hour

Hello all SGS3 users.
I have a strong issue on my branded Samsung I9300. When I browse the /efs folder (with Root Explorer for example), I notice a strange thing.
Two files are changed every hour (the date and the time). Revelant files are : nv_data.bin & nv_data.bin.md5
I know it's important files (including IMEI number and other important information). I have already make backup.
I said that my phone work properly with the right IMEI number, but I'm afraid to turn off my phone not to stop writing files.
Have you ever heard of this ?
Note : I use I9300XXBLG8/I9300OXABLG8 PDA/CSC. I have try to unlock my phone with Voodoo unlocker (thanks supercurio) with previous firmware. When I upgrade my phone to LG8 (and loose my unsimlock), I haven't try to fix Voodoo issue. I have the same network provider as the phone.
Note 2 : I'm sorry for my bad skill in english
just check on mine and it seems to do the same thing
It should come from the new samsung "feature" that make voodoo unlock useless for now
Do not be worry: I have turned my phone off a few times since I flashed LG8 without issue
Thank you for your reply.
If I can restard my phone without issue, it's a good news.
Can you just watch what happens in "nv.log". In my case, no record about it.
same thing: not listed in nv.log
I have upgrade my modem OTA (with the LH1 available today).
It does change this issue.
Others are in this situation ? (I think of guys who don't have try unlock their phones with software hacks)
lelinuxien52 said:
Hello all SGS3 users.
I have a strong issue on my branded Samsung I9300. When I browse the /efs folder (with Root Explorer for example), I notice a strange thing.
Two files are changed every hour (the date and the time). Revelant files are : nv_data.bin & nv_data.bin.md5
I know it's important files (including IMEI number and other important information). I have already make backup.
I said that my phone work properly with the right IMEI number, but I'm afraid to turn off my phone not to stop writing files.
Have you ever heard of this ?
Note : I use I9300XXBLG8/I9300OXABLG8 PDA/CSC. I have try to unlock my phone with Voodoo unlocker (thanks supercurio) with previous firmware. When I upgrade my phone to LG8 (and loose my unsimlock), I haven't try to fix Voodoo issue. I have the same network provider as the phone.
Note 2 : I'm sorry for my bad skill in english
Click to expand...
Click to collapse
As you have already stated in your post EFS folder contains important information such as IMEI number, Phone number and other details...the nv_data.bin file changes it size as the time passes... it is a known behaviour and is not a bug..backup your efs partition on to external medium and restore when required...
read this post.
http://forum.xda-developers.com/showthread.php?t=1314719
zoot1 said:
As you have already stated in your post EFS folder contains important information such as IMEI number, Phone number and other details...the nv_data.bin file changes it size as the time passes... it is a known behaviour and is not a bug..backup your efs partition on to external medium and restore when required...
read this post.
http://forum.xda-developers.com/showthread.php?t=1314719
Click to expand...
Click to collapse
Thanks for your answer. I have already make backup with Toolkit v4.0 and EFS Pro 1.8.

[Q] Which files contain the serial and EMEI number?

Does anyone know how the Samsung Galaxy S3 get the serial number to display on the Settings/About device/Status? On my SGS3 it show 11 letters RFXXXXXXXKV (I replaced other letters by "X")
I checked the serial_no file in efs/FactoryApp/serial_no and it shows "00000000".
Also which file should contain the EMEI number?
Thanks in advance for any leads.
efs folder for the imei
pentel1954 said:
Does anyone know how the Samsung Galaxy S3 get the serial number to display on the Settings/About device/Status? On my SGS3 it show 11 letters RFXXXXXXXKV (I replaced other letters by "X")
I checked the serial_no file in efs/FactoryApp/serial_no and it shows "00000000".
Also which file should contain the EMEI number?
Thanks in advance for any leads.
Click to expand...
Click to collapse
I guess you mean IMEI number, and yes it is located in the EFS folder afaik in the nv_data file. Don`t mess with it if you don`t know what you`re doing.
SolveD
http://forum.xda-developers.com/showthread.php?p=32338426
I was too last night.
How to fix?
I can't call and Message, Network...

[Q] Problem with the modem of Samsung Galaxy Tab GT-P7100 10.1V

Hi,
I have Samsung Galaxy Tab GT-P7100 (Tab 10.1v). It was faulty and I bought it on eBay specially for repair. I am engaged repair of tablets and SAMSUNG phones. It had the broken display and came without battery. I restored it. Now this Tab works! However I see that it has IMEI generic 0049... and Android 3.0.1. I also updated it to 4.0.4, but then again returned to 3.0.1. This TAB now perfectly works! But one problem remained. I want to restore its native IMEI, but I am not able to do it as PC doesn't define its modem of this tablet! I flashed different modems and process always comes to an end successfully. I see the new modem in properties of a tablet. However PC in any way doesn't define the tablet modem. Only in the Download mode PC will define the modem. But in this mode I can't change IMEI. I think that this is a problem modem configuration files. In efs folder there are only few files. It isn't enough of them. I think that it is a problem which doesn't allow to define the modem in PC. Possible it is my problem. It is possible to eat here my problem. Somebody can help me and give me full backup of efs folder for a working P7100 tablet? It will allow me to have a full and correct set of files in efs. Then I will change IMEI on native for my tablet.
Thanks

[Q] IMEI lost, need help

Hello everyone,
as stated in the title, I've somehow lost my Imei nr on my internat. sgsIII. Now, since I am a bloody newbie I don't have any clue how to fix this problem. It just started a couple weeks ago by itself with the message "not registered in network" and that I could not use the phone anymore, only through wifi. Since then I obviously made a huge mistake by taking it too easy fixing that problem on my own. Before the problem appeared, I've never rooted nor manipulated my phone in any way (I did not knew how or what "root" is), after my problem occured I've rooted my phone several times, "flashed" via Odin 3 my phone with div. firmwares etc. and now I understand that I really messed it up and lost the trail. I don't know where to start or what to look for. My "efs-folder" is now empty and since I am ignorant to this, I never made a backup of the efs-folder.
Acc. to my phone:
Imei is: 0049. . . . . . (developer Imei)
ImeiSV: 01
serial Nr: 4df184. . . . . (which seems strange)
Android Vers: 4.3
Baseband: I9300XXUGNA8
Kernel Ver: 3.0.31-2713958
[email protected]#1
BuildNr: JSS15J,I9300XUGNG3
My phone is now rooted via cf autoroot
Can anyone help me? I hope you people could bring me back to trail, I thank you in advance
(sorry for my english)
Take it to a repair centre, unless you can find an efs backup on your sd card (some custom roms make a copy).
Make sure it works on 4.3 before you pay the repair bill.
boomboomer said:
Take it to a repair centre, unless you can find an efs backup on your sd card (some custom roms make a copy).
Make sure it works on 4.3 before you pay the repair bill.
Click to expand...
Click to collapse
I try to avoid that one. . . . I do have somekind of an efs copy from my phone on my PC but I guess it is just a copy of a regenerated efs folder after I flashed my phone with a new firmware. I can't read the contain of that copy it says something like:
(folder) bluetooth
(folder) carrier
(folder) drm
(folder) factoryApp
(folder) imei (contains: mps_code.dat)
(folder) wifi
0000000 authokcont
gyro_cal_data
h2k.dat
nv.log
nv_data.bin
nv_data.bin.md5
wv.keys
thx&greetings

samsung galaxy sIII neo write IMEI new board cpu armeabi-v7a

Hi all,
I change main board on samsung galaxy SIII neo which it haves cpu armeabi-v7a.
I put the firmware GTI9301I 4.4.2 and with terminal emulator app give the IMEI of old main board in new main board but nothing.
Also, I see with ES and ROOT Browser the EFS folder which contain serial number and IMEI and second some other folder which IMEI backup hav e IMEI number with *.bat file . I deleted they and put IMEI from old board on word *.docx file but nothing.
I use everithing which I see on google-internet but nothing... what can I do???
I have not last mail or backup efs of old board.
please help...
John
Unfortunately XDA doesn`t allow IMEI modifications talks, we can`t take responsibility to advise you on your matter, IMEI changes are illegal , we have no prove whether the device you`re trying to change the IMEI has been stolen or not.
You better ask for help at a service center which actually can solve this on legal terms .
Thanks for understanding
Dan - forum moderator
Thread closed

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