Hi,
I have a Samsung Captivate as well as a Samsung Vibrant, and I was wondering if the nv_data.bin files can be interchanged.
From what I have read, the IMEI, unlock code, as well as product code are stored in the nv_data.bin file.
Is there anything else of importance stored in that file that affects functionality of the phone? Has anyone tried doing this before?
Hi, i've just dialled *#06# to get my IMEI and my imei number has changed from 352*********** to 00004**********.
Does anyone currently know of a way to change the imei number back? Thanks in advance.
Your Friend
Phil
I noticed on JM6 and JMA that it made my IMEI number incorrect as well, so when I entered it, it didn't recognise it to change the CSC.
Not sure if there is a way, hopefully so!
I'm sticking with JJ7 now on my replacement tab until we get a proper recovery mode in place.
I had this on my galaxy S. Solved it by backing up the efs directory to be safe. you need root. then delete everything in the efs dir except nv_data.bak then rename it to nv_data.bin and reboot. It should rebuild the efs dir correctly and put the imei back.
But this only works if the nv_data.bak file has not been modified in anyway otherwise it will rebuild with the 0044 imei.
Lordao
Is a corrupted IMEI, can create you problems
I had it too before, but because I deleted also all the .bak files in the EFS folder...
You can recovery in 2 ways:
1st:
I suggest you to delete the nv_data.bin and the nv_data.md5 in EFS folder using rootexplorer then rename the .nv_data.bak to nv_data.bin and the .nv_data.md5.bak in nv_data.bin.md5 (same suggested by lordao); You can also delete the md5 files because it will rebuild it by itselfs.
2nd:
In the bad case the 1st solution will not work, means that your backup files are corrupted and your IMEI is not recoverable.....BUT if you are lucky like I was I recognize that I had a copy in my sdk folder (the one you used when you rooted the Tab!!!) I think the one click root did a backup copy of the nv_data.bin by itself. Grab that file and copy it in the EFS folder (deleting all the other nv_data.bin and nv_data.md5 and relatives .bak that you have in the folder) restart the tab. It will self rebuild the md5. You can make the new .bak files copying the nv_data.bin and rename the copy ad .nv_data.bak
Hope it will help you
Thanks zerocool76 worked perfect!! I now have my imei back. Your a star. Think I will keep a backup of that file. Just in case of future flashing.
diigibio said:
Thanks zerocool76 worked perfect!! I now have my imei back. Your a star. Think I will keep a backup of that file. Just in case of future flashing.
Click to expand...
Click to collapse
Just to know. Where you found the file? In the sdk? Because it would means that your .bak was corrupted too and I'm wondering why..???!!! Anyway glad it was working.I suggest you to backup all the EFS folder
zerocool76 said:
Just to know. Where you found the file? In the sdk? Because it would means that your .bak was corrupted too and I'm wondering why..???!!! Anyway glad it was working.I suggest you to backup all the EFS folder
Click to expand...
Click to collapse
I noticed and fixed this a few days ago.
When I look at my EFS folder backup, done right after rooting the Tab, I can see that nv_data.bak; size 1732608, is a different size, with an earlier creation date than the original nv_data.bin; size 2097152. According to nv.log, my nv_data.bin was corrupted during the time-frame where I was flashing different modems to the Tab while testing the screen timeout bug on JMA, it reports that when nv_data.bak was restored as nv_data.bin the file size was invalid, then says that it restored nv_data.bin, created from scratch I guess, which resulted in the improper IEMI and a serial# of all 0's.
Bell Tab
Roto-JMA firmware
Bell I9000UGJK4 radio
rgbc said:
I noticed and fixed this a few days ago.
When I look at my EFS folder backup, done right after rooting the Tab, I can see that nv_data.bak; size 1732608, is a different size, with an earlier creation date than the original nv_data.bin; size 2097152. According to nv.log, my nv_data.bin was corrupted during the time-frame where I was flashing different modems to the Tab while testing the screen timeout bug on JMA, it reports that when nv_data.bak was restored as nv_data.bin the file size was invalid, then says that it restored nv_data.bin, created from scratch I guess, which resulted in the improper IEMI and a serial# of all 0's.
Bell Tab
Roto-JMA firmware
Bell I9000UGJK4 radio
Click to expand...
Click to collapse
I destroyed my original nv_data.bin editing with a txt editor instead hex editor, plus I deleted baks files for mistake with root manager (no booze when playing with this **** anymore ), I didn't know that the IMEI is encrypted in that file. When I found a copy in my sdk (that I didn't make!?) I restore everything, and after that time I flashed a lots of Firmwares and Modems, but my imei is still ok.I know that a Galaxy S firmware made this issue because it was changing the nv_data and it didn't match anymore with the phone, so corrupted IMEI.I'm wondering if there is a firmware that is doing the same with the Tab
Mine has done the same but with JK5. First noticed when I did the Samsung UK offer thing. Completely different IMEI to whats on the back of my Tab.
Sent from my GT-P1000 using XDA App
Sorry to dig up and old thread, but is this still an issue, can say flashing back and forward from Overcome for example corrupt IMEI etc?
Interesting - are other Samsung devices able to have their IMEI changed?
What this means is that to a technically capable enough thief (or one who knows someone technical enough that will work on credit), Samsung devices are much more valuable: Normally if your mobile got stolen and you had the IMEI, you would report it to your network and they would have it blocked on all networks. Furthermore the police would use the IMEI to prove that the device is yours if it were recovered. If the IMEI can be changed, the device can't be identified and can't be blocked from networks. It only needs slight tweaking to make it appear valid. Don't know about the implications for post-registration call routing, but the thief wouldn't care about that.
In the US, gsm carriers won't block the number - they seem to view stolen phones as a potential new subscriber.
hello,
i have the same trouble ( imei change)on galaxy tab , but the phone work normally (for now ...).
Can i let it so , or could have trouble in future?
because i don't save nv data folder, and i'm not very good to restore rom.The mod was made from my friend.
excuse for my english ,bye
zerocool76 said:
Is a corrupted IMEI, can create you problems
I had it too before, but because I deleted also all the .bak files in the EFS folder...
You can recovery in 2 ways:
1st:
I suggest you to delete the nv_data.bin and the nv_data.md5 in EFS folder using rootexplorer then rename the .nv_data.bak to nv_data.bin and the .nv_data.md5.bak in nv_data.bin.md5 (same suggested by lordao); You can also delete the md5 files because it will rebuild it by itselfs.
2nd:
In the bad case the 1st solution will not work, means that your backup files are corrupted and your IMEI is not recoverable.....BUT if you are lucky like I was I recognize that I had a copy in my sdk folder (the one you used when you rooted the Tab!!!) I think the one click root did a backup copy of the nv_data.bin by itself. Grab that file and copy it in the EFS folder (deleting all the other nv_data.bin and nv_data.md5 and relatives .bak that you have in the folder) restart the tab. It will self rebuild the md5. You can make the new .bak files copying the nv_data.bin and rename the copy ad .nv_data.bak
Hope it will help you
Click to expand...
Click to collapse
i can recovery ANY imei number on ANY android device im currently making a program to do this automaticly
paul.robo said:
i can recovery ANY imei number on ANY android device im currently making a program to do this automaticly
Click to expand...
Click to collapse
Hows that program coming along? I might be in need of it on account of
losing my IMEI on my Galaxy tab.
ktmman said:
Hows that program coming along? I might be in need of it on account of
losing my IMEI on my Galaxy tab.
Click to expand...
Click to collapse
So i got my IMEI no.back but i still don't have a data connection. The strange thing is if i swap sim cards
with my phone it works so im not sure whats wrong with it.
i got i9000 from customer which have null imei (no imei ) on *#06#
then i rooted and copied another nv_data.bin to efs folder
the problem if i join with efs explorer phone start md5 and network all is ok just imei 0044
but if if restart i9000 then still null
so if i join to root explorer as su i can see files in efs folder
if i start r/o mode network doesnt start need a advice is there any command i can start or change permissions on efs ?
or send me any of nv_data backup i can try
this phone registered on turkey networks
the efs folder contans the imei , which is for one phone only . It is ilegal to use another imei from other phone . My advice is to send it to Samsung and they will repair your imei for a tax/fee . Send the Box with the imei code also .
well its not a prolem i do fixed some of them with 0044 ut this doesnt have any of 0044 at startup but if i join to root explorer as root in efs modem start help needed
nv data copy would be really nice to repair it ass 0044
speedstarrr said:
well its not a prolem i do fixed some of them with 0044 ut this doesnt have any of 0044 at startup but if i join to root explorer as root in efs modem start help needed
nv data copy would be really nice to repair it ass 0044
Click to expand...
Click to collapse
OK, I have NO idea whatsoever what you just said....
i need full efs folder
then phone will come with 0044 or another imei number but its not a problem for me coz i can repair it via my tools
If you would be so kind to write in proper English... you might just have a chance to get an answer.
I read it as the OP wants a copy of somebody's EFS folder so as he can hack it for his number .
Problem is that i would not give my legitimate IMEI to someone else in case i found its been hijacked .
jje
My galaxy mini imei's has been changed to 000000000x, i was searching for efs folder but couldn't find in root directory therefore i am wondering if someone can tell me where is the imei and all the critical information is stored in galaxy mini ?
foxdie222 said:
My galaxy mini imei's has been changed to 000000000x, i was searching for efs folder but couldn't find in root directory therefore i am wondering if someone can tell me where is the imei and all the critical information is stored in galaxy mini ?
Click to expand...
Click to collapse
*#*#4363#*#*
or in your wrapper box.
First try flashing some firmware
If they don't help then find a way to mount efs directory
You will need to get efs partition somehow
i have s3 mini /I8190N/
i flash it with z3x and forgate to unchek the ClearEFS option and without baking up the EFS File:crying:
well i tried to serch for EFS file but no luck
if someone can help me with this file please.
thanx in advance.