Database Users

[Q] Changing IMEI on Samsung Nexus S legitimate reason, please read on.

I'm quite new to Odin but have spent the last 2 days researching it and its uses..
The problem I have, is that I flashed a ROM from over at Samsung Nexus S forum along with about another 25-100 people,
http://forum.xda-developers.com/showthread.php?t=1034130&page=118
the ROM in question re-wrote the IMEI numbers on all the phones to the same number, causing some networks in some country to deny access and in other countrys not causing any imidiate problems, but that could change anytime.
I've read that if I flash back to stock with Odin with a .pit file and Re-Partition ticked, that Odin will cause the phone to re-write all partitions and correct this.
NOW PLEASE CORRECT ME IF I'M WRONG. or point me in another direction if you know of one.
I've got the correct ROM for my region but cant find the Samsung Nexus S .pit file anyware.
Can someone tell me if I have to use a specific .pit file for the Samsung Nexus S and if so where I can download it from.
Looking for a good Dev with exceptionable skills in this particular area ????
Many thanks in advance.

Do you have a backup of your EFS folder?
Did you do a nandroidbackup?
Flashing a new rom, will not exchange your IMEI back to what it was. Restoring a backup or overwrite the EFS folder with your old backup will tho.

edici said:
Do you have a backup of your EFS folder?
Did you do a nandroidbackup?
Flashing a new rom, will not exchange your IMEI back to what it was. Restoring a backup or overwrite the EFS folder with your old backup will tho.
Click to expand...
Click to collapse
No didn;t have efs floder backed up and tried restoring from several back ups but that doesn't work.
Thanks anyway

[Q&A] [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE

Q&A for [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE
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cassinni said:
Doesnt work for me and i am rooted on 4.3
"The system cannot find the path specified...."
USB Debugging enabled aswell..
any help?
thanks
Click to expand...
Click to collapse
Same problem here.

Fixing IMEI After Downgrading to 4.3 from 4.4.2
I need to know how to install my original or a working IMEI onto my AT&T Note 3 SM-N900A any info is helpful thanks hopefully someone knows the answer and can reply fast.

Same here.. is this method is works with sm-n900a at&t?????? after updating to NCUC2 4.4.2 my efs folder get damaged.. now unknown baseband and also IMEI is null/null
Please help me out

explanations
call out of the explanations and some easier. Thank you.

I've always found the easiest way to backup/restore EFS is via TWRP. Just select backup then just tick EFS. That particular backup will then contain only your EFS partition which you can restore at any point, even if your phone doesn't boot. As long as you can get into your recovery you're good to go.
Sent from my SM-N9005 using Tapatalk

SM-N900
Hi guys, i have SM-N900 and i have backup of EFS.img and efs.tar. How can i restore it? TAR file can't flashed by odin. Can't extract EFS.img. now my phone is Not registered on network

Hi guys need help
Can u send me efs img file and all efs files i m using sm-n9005, i dont have efs backup and now imei null and baseband unknown

LOST EFS Files... PLEASE HELP
Hi
i have a galaxy note 3 (sm-n900). Suddenly, Last week it just lost the coverage of the network and it is not able to connect to any network (mobile network, wifi, Bluetooth) anymore.
I searched over the Internet and found that such problem is related to EFS files.
My dedevice is not rooted so i have not flashed any rom.
How can i fix it???

efs
hi ive corrupted my efs and didnt back it up befroe root.
however unusual to see my sm-n900 picks up its original imei for some time and then it shows null0null or imei with 0049 .
efs wont repair after restore to stock firmware . could you developers please build me an efs if I gave you my IMEI????

efs is corrupted wont repair
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out

imei Null
Hello everyone, can anyone help ; i have a Note 3 sm-N9005 and i messed up and didn't back up my efs files and now i have IMEI null and baseband unknown how cani fix that !! please help!!

Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"

xbillou360 said:
Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"
Click to expand...
Click to collapse
Did you fix it? how?
Can you be more specific

no imei, no baseband, no working efs.img
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor

knox trip?
Hi guys!
Sorry if the question has already been asked but couldn't find the answer, so please bear with me ... My question is: does the backup procedure (and later restore) as described in the thread trip knox and voids your warranty?
Thanks in advance!

Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk

monitorix said:
Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Odin WILL overwrite the phone. Without Root you can't do a nandroid (full phone backup) and about your only option is to get something like ES File Explorer and try to copy out all your media files, docs etc.
All the best ways to save stuff require root access.
You could also try SMS Backup & Restore and Call Logs Backup & Restore to save those out to your extSD. Also you can export your Contacts to extSD and import them back once the flashing is done.
---------- Post added at 03:14 PM ---------- Previous post was at 03:08 PM ----------
viktorno5 said:
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor
Click to expand...
Click to collapse
There are things you can do if you search for IMEI lost or similar words. But simplest is probably to DL the Stock version for your phone & use Odin to flash it. That will lose all your data and apps etc on the intSD so you might want to look for other ways first.
I'm guess here but I think maybe you have a problem trying to downgrade your modem/bootloader. CM12 is (if I remember right) v5.0.x of Android, and since Kitkat there have been issues going BACK to previous versions. I think maybe you upgraded your BL to the LP version then it failed when you tried to go back to KK version.
You do not say which 4.4.2 you flashed but you could look for a v5 of that ROM and try that first.

sabirthe1 said:
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out
Click to expand...
Click to collapse
have you solved it yet? I met this problem but dont know how to handle it.
can you give me a hint?

Unknown BaseBand And imei null

here i received a g900h from a customer with unknown baseband and imei null after wipe.
i flashed device and upgrade it to 5.0.2 but still has problem .
please F1.
thnx

Unless they backed up their EFS partition, it's dead
Heard people saying they backed up a different S5 EFS partition, then restore it on the dead S5
http://forum.xda-developers.com/showthread.php?t=2737448

please F1
i confused , please someone help me.
here i have a g900h with unknown baseband and null imei .
i upgrade it to 5.0.2 then downgrade it again to 4.4.2.
but still is damaged baseband and imei.
device is now rooted and i installed busybox and terminal emulator for restore a efs.
please
please
help
i google every day , today i found a solution in z3x forum but no one was shared it was solved or not.

Enter debugging mode on your Samsung galaxy
>Connect your Device to the PC
>Download the EFS Restorer Express
>Open The folder and double-click the EFS-BACKUP. BAT file
>On the screen provided, select a method to restore the EFS via ODIN
>Finish
i need a good efs backup for g900h
please back up and share

miladcpu said:
Enter debugging mode on your Samsung galaxy
>Connect your Device to the PC
>Download the EFS Restorer Express
>Open The folder and double-click the EFS-BACKUP. BAT file
>On the screen provided, select a method to restore the EFS via ODIN
>Finish
i need a good efs backup for g900h
please back up and share
Click to expand...
Click to collapse
Noone with any sense will share their EFS backup, it is unique to their phone, and sharing it could get their phone blocked by the carrier

*Detection* said:
Noone with any sense will share their EFS backup, it is unique to their phone, and sharing it could get their phone blocked by the carrier
Click to expand...
Click to collapse
i'm in iran so don't worry about your carrier.

miladcpu said:
i'm in iran so don't worry about your carrier.
Click to expand...
Click to collapse
Don't care where you are, if your phone has my IMEI, and your phone gets blocked for whatever reason, mine does too
Read EFS threads, do you see anyone sharing their EFS partition?
Nope. And that's why
Would you give me your MAC address and IP address so I can download illegal files?
I don't want anyone else having my specific phone ID

*Detection* said:
Don't care where you are, if your phone has my IMEI, and your phone gets blocked for whatever reason, mine does too
Read EFS threads, do you see anyone sharing their EFS partition?
Nope. And that's why
Would you give me your MAC address and IP address so I can download illegal files?
I don't want anyone else having my specific phone ID
Click to expand...
Click to collapse
first i have to thanks to you for your replies and kindly help.
so what should i do now?

miladcpu said:
first i have to thanks to you for your replies and kindly help.
so what should i do now?
Click to expand...
Click to collapse
Either find another S5 to backup and restore from, a trusting friend or family member - or take your phone to a store to get fixed
Then backup your EFS partition

Phone is not connecting after spending rom in Odin . E : failed to mount / efs

Phone is not connecting after spending rom in Odin . E : failed to mount / efs ( Invalid argument ) . I need a backup G928P EFS ?Could someone help me?

jairos6 said:
Phone is not connecting after spending rom in Odin . E : failed to mount / efs ( Invalid argument ) . I need a backup G928P EFS ?Could someone help me?
Click to expand...
Click to collapse
As I know, EFS Back up contains IMEI, so sharing the imei will be logically? Not sure.. Actually would like to help but I didnt get the nature of problem.

Any tips ?
Konsstantine34 said:
As I know, EFS Back up contains IMEI, so sharing the imei will be logically? Not sure.. Actually would like to help but I didnt get the nature of problem.
Click to expand...
Click to collapse
The phone brickou after flashing the wrong ROM on the device and that at vistou corrupted something in EFS folder. If you can give me back up excluding up to the IMEI folder I would accept without problems ... just want at least revive the unit . If you know any other solution that not need to use IMEI backup 'm very grateful. I found this here on link of gsm24h but the file is password and can not draw .

jairos6 said:
The phone brickou after flashing the wrong ROM on the device and that at vistou corrupted something in EFS folder. If you can give me back up excluding up to the IMEI folder I would accept without problems ... just want at least revive the unit . If you know any other solution that not need to use IMEI backup 'm very grateful. I found this here on link of gsm24h but the file is password and can not draw .
Click to expand...
Click to collapse
You tried wipe options already or? Dunno man your variant is Spirint, may have locked bootloader and etc. You need to look for the correct solutions in Spirint forum.

EFS missing files / IMEI and Baseband unknown

Hello guys, I need a lot of help was messing on the Internet from my Galaxy S5 G900M when he crashed and got warm,
I removed the battery called him but was no carrier signal after prsquisar discovered that my EFS is missing files:
.nv_core. bin
.nv_core.md5
.nv_data.bin
.nv_data.md5
.nv_state
I have little money when then pay for repairs to the box is in final plan at the time,
I researched many posts with repair attempts here Forums new and others over the Internet to 3 full days without success, what do you think is like me rebuild these 5 files on my device?
vi whose other older models (Galaxy S4) with a program, only it does not support my model!
Obs:
My S5 was before the problem with the Rom xXx No Limits 5.7 + Boeffla kernel + Root
I've tried to go back to several versions of the stock roms and did not work!
Thank you guys

I also have the same problem with my G900M
It would be very good for someone we help.
My friend, any progress tell me.

i dont want to bother or anythin, but for u to recover the efs file is more or less impossible.... the only way would be if u would have made a efs partition backup trough twrp, since i bet u didnt made one, ur phone is now more or less just a tablet with no usable phone stuff

Hope this helps! Best of luck
https://www.technobezz.com/restore-galaxy-null-imei-and-fix-not-registered-on-network/

[email protected] said:
I also have the same problem with my G900M
It would be very good for someone we help.
My friend, any progress tell me.
Click to expand...
Click to collapse
Yes I will
ekonomc said:
i dont want to bother or anythin, but for u to recover the efs file is more or less impossible.... the only way would be if u would have made a efs partition backup trough twrp, since i bet u didnt made one, ur phone is now more or less just a tablet with no usable phone stuff
Click to expand...
Click to collapse
It is worth trying, since the discovery could help more people around the world
[email protected] said:
https://www.technobezz.com/restore-galaxy-null-imei-and-fix-not-registered-on-network/
Click to expand...
Click to collapse
Thank I already tried it before the codes *#197328640# or *#*#197328640#*#* they do not work on my device

EFS without ''nv_data.bin'' isn't corupt
LMartins.338 said:
Hello guys, I need a lot of help was messing on the Internet from my Galaxy S5 G900M when he crashed and got warm,
I removed the battery called him but was no carrier signal after prsquisar discovered that my EFS is missing files:
.nv_core. bin
.nv_core.md5
.nv_data.bin
.nv_data.md5
.nv_state
Click to expand...
Click to collapse
I have SM-G900F and in efs partition I don't have this files above too, but i have IMEI in phone and it works good. I think the Galaxy S5 have a special version of efs partition. I can send you my dump of efs part. (efs.bin file, maked by dd in adb in console on PC ) if you want. You can send me your dump of efs to compare this. It is surprise for me why I dont have the folder "sec_efs" like you.
Image of my EFS in SM-G900F: https:__drive.google.com/file/d/1PPr2yaZPsOc4kPJmPebpIGJeL6Jxa03X/view?usp=sharing
And look what I found on the web: http:__i.imgur.com/AF2MikD.png

Hi there. I tries to restore my efs backup after flashing stock ROM,but didn't knew the backup itself was corrupt and my phone has no network, no imei and unknown baseband.