Hi, can someone guide me as to how I can restore my lost IMEI - Serial No back to stock? using SM-G920FD (duos)
Kindly refer below to the details of my problem and actions done.
How the issue happened
1. I'm currently on stock firmware of SM-G920FD (COH8). (Local copy of COH8 flashed via ODIN)
2. I received an OTA update (COI9) and installed it. Phone works perfectly fine.
3. After doing some tests on some kernel (arters97's kernels), I have decided to revert back to stock firmware since the kernel uses Note 5 gpu driver (not knowing that someone has prepared a flashable zip for S6 flat/edge) :crying:
4. I use my local copy of COH8 and flashed via ODIN. The flash failed thru sboot.bin - that tells me the bootloader is outdated on my phone *ugh.
5. I downloaded COI9 firmware from samfirmware site and flashed it via odin.
6. It is now stucked at first samsung logo. After going to recovery it says cannot mount /efs
Fixes I made
1. I dont know much stuff with efs thingy, that's why I didn't do a backup for it.
2. First fix, (this is the worst step I ever made - that costs me into this big trouble) I installed a "something" application that requires me to format the efs partition. Well done to myself, the app successfully wipe it all without backing up efs .
3. Now the phone is stucked to samsung first logo. Period. Even Reflashing stock via odin failed. Realizing the efs files are all messed up.
4. Now, after searching thru forums, Ive come into this adb command by running this, .
/system/xbin/su
mke2fs /dev/block/sda3
mount -t ext4 /dev/block/sda3
After doing this, Ive been able boot into device, I have a working WIFI, a valid ip address.
a. no bluetooth address
b. no imei for both sim 1 and sim 2
c. Incorrect Serial Number
d. No network of course
After deep searching thru xda, Ive come across with nv_data.bin editing thru Hex Editor. It could probably return my IMEI and Serial No back to normal(i still have the imei no & serial at the back of my phone ).
Perhaps, the only way to fix this will be on a repair shop to fix my imei. I doubt my samsung warranty would help since Im constantly flashing stuffs on my phone.
Can someone share me their full EFS folder zipped with Galaxy S6 SM-G920FD / G920F (probably a single sim will do) so I could compare and edit my own imei that would be a great help and I'll give a feedback asap.
Hoping someone can help me on this. Thank you
Anyone?
37 views of galaxy s6 owner and no one dares to share their efs
There is loads of information on the forums to recover lost IMEI. Did you try flashing a modem and bootloader update. This should generate the efs folder with nv_data.bin. You still may not have the correct IMEI and serial in the nv_data.bin, but at least you can edit it.
Search the forums I have seen loads and loads of tutorials for this problem.
Not many people are quick to give out there IMEI.
bahmonkeys said:
There is loads of information on the forums to recover lost IMEI. Did you try flashing a modem and bootloader update. This should generate the efs folder with nv_data.bin. You still may not have the correct IMEI and serial in the nv_data.bin, but at least you can edit it.
Search the forums I have seen loads and loads of tutorials for this problem.
Not many people are quick to give out there IMEI.
Click to expand...
Click to collapse
No, modem and bootloader flashing does nothing.
I do already have a pre-generated-stock nv_data.bin from my efs folder.
Can you give me an example of a working thread that requires editing of nv_data via editor that works?
The problem is that their issue has worked specifically on their device, none of the Galaxy S6 users were able to do that afaik. Almost a week since i started searching for answers but to no avail.
For example this, the thread below says that I should goto this address [offset] 00188008 but in my Galaxy S6 nv_data.bin, the file is only up to 000FFFF0 offset?? That's why I need help from others to at least share their fixes or comparison of this thread below with their nv_data.bin file. If there is similarity. Forget sharing your imei to me, but maybe you can consider how am I supposed to do that fix on the other thread.
Thanks
http://forum.xda-developers.com/showthread.php?t=881162
Or if someone can find their IMEI code in nv_data.bin, kindly share to me the offset (location) of the IMEI in hex editor. That would be a good start. Thanks
batuzai04123 said:
No, modem and bootloader flashing does nothing.
I do already have a pre-generated-stock nv_data.bin from my efs folder.
Can you give me an example of a working thread that requires editing of nv_data via editor that works?
The problem is that their issue has worked specifically on their device, none of the Galaxy S6 users were able to do that afaik. Almost a week since i started searching for answers but to no avail.
For example this, the thread below says that I should goto this address [offset] 00188008 but in my Galaxy S6 nv_data.bin, the file is only up to 000FFFF0 offset?? That's why I need help from others to at least share their fixes or comparison of this thread below with their nv_data.bin file. If there is similarity. Forget sharing your imei to me, but maybe you can consider how am I supposed to do that fix on the other thread.
Thanks
http://forum.xda-developers.com/showthread.php?t=881162
Click to expand...
Click to collapse
I can't remember exactly the offset location but I have seen it on my phone a few weeks back. I do remember seeing a few tutorials on YouTube. I will take a look tomorrow and if you haven't it solved by then I will help you fix it....
Thanks, hoping you could help me on that.
Something is weird on how efs is generated. I backed up the messed up nv data from efs folder. Then I deleted the contents of whole efs folder then reboot.
When phone booted, to my surprise I notice that it still generated the contents of efs. Then I compared the Newly generated nv_data to my backedup nv_data. No difference -_-. Still incorrect imei was given to me. 350000000000006 format both for sim 1 and sim 2.
Phone Info app says that my imei info (www.imei.info) was from an apple device rofl.
Since its giving me same and same imei and no product code/serial code
I suspect that my IMEI was generated from embedded hardware/chip??? But i think its not possible to mess any of the hardwareparts from flashing custom roms/zips/stock firmwares alone?
Hmm I think there's no chance for it to recover? since it is always giving me Generic Imei
One user says that it could be the hardware is somewhat corrupted or cant be modified blah blah
http://forum.xda-developers.com/showpost.php?p=30292696&postcount=185
Forget the EFS
Forget the NV
〔You should try to write cert〕!!!!!!!
Only in this way your phone will be working properly
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
---------- Post added at 12:41 PM ---------- Previous post was at 12:39 PM ----------
batuzai04123 said:
Anyone?
37 views of galaxy s6 owner and no one dares to share their efs
Click to expand...
Click to collapse
This is my modified IMEI case success
china chenli said:
Forget the EFS
Forget the NV
〔You should try to write cert〕!!!!!!!
Only in this way your phone will be working properly
---------- Post added at 12:41 PM ---------- Previous post was at 12:39 PM ----------
This is my modified IMEI case success
Click to expand...
Click to collapse
You showed your edited IMEI on your phone, but you didn't share how ?
I think this is what Im looking for, but HOW???
1. What is that cert file? Can it be installed via phones system files?
2. Does it need third party app and a toolbox hardware to buy and install? It smells like its for technician part already :|
3. Since it needs key cert, how can I generate this? Thru the 3rd party also?
But FYI, Im not into modifying IMEI as it illegal, what I wanted to do is to restore my device's IMEI found at the back of my phone.
batuzai04123 said:
I think this is what Im looking for, but HOW???
1. What is that cert file? Can it be found via phones system files?
2. Does it need third party app and a toolbox hardware?
3. Since it needs key cert, how can I generate this? Thru the 3rd party also?
But FYI, Im not into modifying IMEI as it illegal, what I wanted to do is to restore my device's IMEI found at the back of my phone.
Click to expand...
Click to collapse
You have now lost the IMEI
If you still have flash the firmware is invalid
I think no way to restore the original IMEI
If change IMEI is illegal in your country, it would be a sad thing
ugh. Based from your pictures, you used 3rd party hardware tool and app something like octopus box and the likes.
You're telling me to give this to technician, as it is the only way to fix my issue?
china chenli said:
You have now lost the IMEI
If you still have flash the firmware is invalid
I think no way to restore the original IMEI
If change IMEI is illegal in your country, it would be a sad thing
Click to expand...
Click to collapse
Perhaps were not on the same page
What I wanted to do is to change my IMEI to stock IMEI (printed on my phone) so that it can connect legally to my network provider. If your way is good, maybe you can help me how to change my IMEI
Changing IMEI i.e., frying someones IMEI to hacked/stolen/blocklisted phones are definitely illegal.
Back to my issue, did you send your phone to technician/ did you have the box tool to flash cert files to your phone?
Hope you can help me thanks
batuzai04123 said:
ugh. Based from your pictures, you used 3rd party hardware tool and app something like octopus box and the likes.
You're telling me to give this to technician, as it is the only way to fix my issue?
Click to expand...
Click to collapse
Yes the octopus can do it
------------------------------------------------------------------
My English really bad, I speak a little bit more simple
If you don't have a backup EFS and your mobile phone and lost IMEI.
The solution is to use the BOX to write a new IMEI so that you will get a new IMEI
You write a new IMEI may and other mobile phone to repeat After doing this You will forfeit the warranty In addition to Will not affect the normal use of your phone
Samsung CERT is unique And only CERT must be the truth
china chenli said:
Yes the octopus can do it
------------------------------------------------------------------
My English really bad, I speak a little bit more simple
If you don't have a backup EFS and your mobile phone and lost IMEI.
The solution is to use the BOX to write a new IMEI so that you will get a new IMEI
You write a new IMEI may and other mobile phone to repeat After doing this You will forfeit the warranty In addition to Will not affect the normal use of your phone
Samsung CERT is unique And only CERT must be the truth
Click to expand...
Click to collapse
I get it. But this cant be done without using the box tools? Am I right?
batuzai04123 said:
I get it. But this cant be done without using the box tools? Am I right?
Click to expand...
Click to collapse
Yes, you need a BOX and a clean CERT
Well still thank you for the replies, only repair via technician is the only way . Requesting for mod to close the thread. No way the imei can be reverted back via EFS - NV way, flashing stock modem, backing and restoring efs, mke2fs thingy, flashing stock firmware and so on.
There is part on the chip of the phone that literally erases the phone info for my s6.
If any can give other ways before I let go HAHAHA, but please refrain from efs,nv_data,flashing stock stuff, as the firmware doesn't have to do with restoring efs. Only the hardware device stores efs info for our phone.
batuzai04123 said:
Well still thank you for the replies, only repair via technician is the only way . Requesting for mod to close the thread. No way the imei can be reverted back via EFS - NV way, flashing stock modem, backing and restoring efs, mke2fs thingy, flashing stock firmware and so on.
There is part on the chip of the phone that literally erases the phone info for my s6.
If any can give other ways before I let go HAHAHA, but please refrain from efs,nv_data,flashing stuffs, as the firmware doesn't have to do with restoring efs. Only the hardware device stores efs info for our phone.
Click to expand...
Click to collapse
If your phone is KNOX 0 x0
Then you can look for samsung to solve for you
I wish you good luck, my friend
Thanks , haha but my knox is 0x1 already
Tried to bring it to a legit 3rd party technician and they assigned a new IMEI for my phone and its working fine now.
imo I brought it first to Samsung and tells me that my warranty is void, but they can fix it via hardware replacement and would cost me at around $350. Lol no way!!!
For those who tried to do anything when all methods do not work, frustrations etc. This is the quickest way to restore it.
But thanks for the info I got from XDA members, now Ive learned that the first rule should be applied whenever possible before its too late.
To all other Explorers/newbies/Risk taker out there. Remember this one word.
BACKUP!!!!
Thanks.
To Mod:
Requesting for mod to close this thread thank you
Related
After unlock success phone imei is come to this condition
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
What unlock did you use? What are you doing when you receive this message? Is you phone rooted or any other mods? What have you tried so far to fix it?
I used NsPro to unlock my phone and to fix this imei issue i used odin 1.7 to flash the phone with T959VKB5-Custom.tar but after flashed it same thing, help me how i can solve this problem?
No body can help me to solve my problem??????
Are you trying to dial when you receive this message, or the message just comes at any time you turn the phone on?
Have you tried factory data reset?
golmar88 said:
Are you trying to dial when you receive this message, or the message just comes at any time you turn the phone on?
Have you tried factory data reset?
I'm not real familiar with nspro, how does that work? Does it mess with JTAG?
Click to expand...
Click to collapse
Hi
I have same like ur problem.
did u managed to fix it ?
amanvir said:
I used NsPro to unlock my phone and to fix this imei issue i used odin 1.7 to flash the phone with T959VKB5-Custom.tar but after flashed it same thing, help me how i can solve this problem?
Click to expand...
Click to collapse
ns pro never corrupts the imei of galaxy s 4g. {t959v}. I ve unlocked many such galaxy 4gS.
IMEI corruption had occured must be due to incorrect ( ' i9000 modem unlock patch file') flashing with z3x followed by a repair attempt with the ns pro modem repair file. AND then some desperate attempts with ODINs also.
So many files now on board - try your luck OR wait for a pro solution to be released.
br
let me know if you found a fix, im in the same boat and cant get it back
any fix for this?
hi xda'er got this problem before just want to share it what i did is search nv_data.bin in this case i use root explorer navigate to that folder see if you have these files nv_data.bin nv_data.bin.md5 the other two is a back up file .nv_data.bin.bak and .nv.data.bak.md5 ( correct me if im wrong ) i copied that files to my sd and then i deleted the nv_data.bin nv_data.bin.md5 rename the back up files to nv_data.bin nv_data.bin.md5 see if ur ime change if not do the soft reset shut down ... take off battery ... wait 30 sec and turn it back on hope this will help ( sorry 4 my bad english )
kenzo888 said:
hi xda'er got this problem before just want to share it what i did is search nv_data.bin in this case i use root explorer navigate to that folder see if you have these files nv_data.bin nv_data.bin.md5 the other two is a back up file .nv_data.bin.bak and .nv.data.bak.md5 ( correct me if im wrong ) i copied that files to my sd and then i deleted the nv_data.bin nv_data.bin.md5 rename the back up files to nv_data.bin nv_data.bin.md5 see if ur ime change if not do the soft reset shut down ... take off battery ... wait 30 sec and turn it back on hope this will help ( sorry 4 my bad english )
Click to expand...
Click to collapse
Hi Kenzo888, Upon searching I do not have the .nv file or the or the md5 file either. All I see is the nv_data.bin file in the /efs/root folder and one /efs folder.
I am not sure if the others have the same but I have the same exact IMEI shown in the OP (1st post by amanvir).
Hope someone can help.
dude_uuk said:
Hi Kenzo888, Upon searching I do not have the .nv file or the or the md5 file either. All I see is the nv_data.bin file in the /efs/root folder and one /efs folder.
I am not sure if the others have the same but I have the same exact IMEI shown in the OP (1st post by amanvir).
Hope someone can help.
Click to expand...
Click to collapse
Try efs/root/afs/setting all my nv files
Is in that folder
kenzo888 said:
Try efs/root/afs/setting all my nv files
Is in that folder
Click to expand...
Click to collapse
I only have two nv files (nv_dat.din and nv_data.binrm) from that directory. I read from the other forum threads that using nspro for unlocking screwed their IMEI as well showing the same IMEI from the first post. gosh!!!
dude_uuk said:
I only have two nv files (nv_dat.din and nv_data.binrm) from that directory. I read from the other forum threads that using nspro for unlocking screwed their IMEI as well showing the same IMEI from the first post. gosh!!!
Click to expand...
Click to collapse
Ok try this thread and letit sit for 10 mnt and then soft reset it
http://forum.xda-developers.com/showthread.php?t=1142829
dude_uuk said:
I only have two nv files (nv_dat.din and nv_data.binrm) from that directory. I read from the other forum threads that using nspro for unlocking screwed their IMEI as well showing the same IMEI from the first post. gosh!!!
Click to expand...
Click to collapse
U sure that ur files is nv_dat.din and nv_data.binrm ?
I had this problem and it is because the app is supposed to take the nvdata.bin out change the codeing to make the phone unlocked and then it puts the file back in the phone and your unlocked. If it is not there then the app failed to restore the .bin and thats why u have no imei. Find the file and push it back with the adb method for unlock. I do not like these unlocking apps. they can cause too much bs if they do not operate properly. I use adb to extract the file to my sd card and then place on desktop and edit the file with a hex editor. U only have to change a few 0's to 1's or vice versa and its super easy if u follow the thread about how to unlock the sgs 4g with this method. (can't remember which one but it is in our forum for sure) Then u push your nvdata.bin back to the phone with adb and ur unlocked. To relock the phone u do the same method and change back what u changed to unlock it. ( 0's to 1's or vice versa. just read the thread.)
kenzo888 said:
Ok try this thread and letit sit for 10 mnt and then soft reset it
http://forum.xda-developers.com/showthread.php?t=1142829
Click to expand...
Click to collapse
Hi did this already and now i have the 2.3.3 GB from 2.2.1 but still my IMEI is screwed up. Did the soft reset as well but still nothing.
kenzo888 said:
U sure that ur files is nv_dat.din and nv_data.binrm ?
Click to expand...
Click to collapse
yup...I have searched for al nv files but this is only the two files I have in that folder (/efs/root/afs/setting).
Please help
I'm kind of in the same boat.
I bought a phone off craigslist didn't work now im stuck with a phone i can use wireless on. attempting to make a call, the call drops instantly , received calls go straight to voicemail.
after researching all this past week.. i've noticed the following probles so here is my situation at hand.
i have the IMEI issue with corrupted characters except mine says 04 at the end.
unable to root.
unable to put this phone in download mode
(attempting to fix the imei issue reflashing with odin)
I have no back up files
unable to enter recovery mode manually. I read from another thread someone was able to do so using t mobile one click root program for vibrant ,
which works for this, but when i tried to root i get e signature verification fail issue as well.
I've read countless threads and forums and about to inquire to samsung or t-mobile for a repair. my aim is to get this phone operable.
i'd like to help myself on the issues but find myself at a dead end with being unable to put in download mode ,and yes ive tried the different methods of holding buttons/ inserting usb.
and at another dead end being unable to get this rooted because of signature verification fails.. any help or direction would be greatly appreciated.
are the files device specific? cuz if not i had same problem and i fixed it...i will post file if not device specific, someone just let me know.
EDIT:
THIS SHOULD NO LONGER BE USED.
PLEASE SEE THIS THREAD FOR RECOVERING YOUR IMEI - http://forum.xda-developers.com/showthread.php?t=1802024
Hi guys,
I tried flashing AOKP on my S3 yesterday and had my IMEI value set to zero, a rare(ish) error that some users have been running into with AOKP and the unofficial Cyanogen builds for this phone. If your IMEI is lost and you don't have a backup, your phone is basically toasted. So, I had to get my phone replaced which wasn't much trouble.
After speaking with invisiblek we determined a way to back up the EFS partition (which is where the IMEI and MEID is stored).
You need to do this on a rooted phone, it's been tested only with root66. You need USB debugging on and adb on your computer.
Code:
adb shell
su
dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.sbn
(exit adb)
adb pull /sdcard/efs.sbn
DD is a linux utility that can be used to copy data from point a to point b and many, many ways. What we did here is copied the EFS partition to a single file (and then copied it to your PC). The efs.sbn file was about 13.6mb, but I've heard reports as low as 10mb. We can reverse this process to restore as well:
Code:
adb push efs.sbn /sdcard/efs.sbn
adb shell
su
dd if=/sdcard/efs.sbn of=/dev/block/mmcblk0p11
reboot
This time we wrote the backup file to the EFS partition. After doing this you need to dial *2767*3855# to re-provision your phone.
My experience: When installing AOKP, my IMEI was replaced with most of my MEID, even after reverting my rom to root66. (This causes mobile data not to work). After restoring my backup and provisioning, I regained full functionality of my data and phone. I haven't had a chance to try this with a phone where the IMEI is set to 0, but I think it's safe to assume this would fix that as well.
I would HIGHLY recommend making a backup before doing anything to your phone. Making a backup is read-only is poses no chance of something going wrong.
EDIT: For clarification: If your IMEI is already messed up, this will NOT get it back. You need a backup from BEFORE it was corrupted.
Can we run this in Terminal Emulator to get the same output? Last time I tried ADB on this phone I wasn't recognizing it. Could have been my computer though. ADB devices came back with no attached devices last time.
Looks possible. Your just telling it to save that file to the root of the internal SD and then telling ADB to pull it. Don't see why you couldn't save to SD then just Dropbox it or something.
Edit: Did it in Terminal Emulator. Saved to SD. Uploaded to Dropbox. Will also hook up my phone and pull it that way. Looks like pushing will work the same way as long as the file is on the root of SD.
Thanks so much. I also ran with terminal emulator and backed up.
Hopefully someone can verify that this will work with the IMEI = 0 issue, as that will allow us to continue to flash!
Worked for me in Terminal as well. Zipped it up and emailed to myself. 13.6MB
so I have a question about this -
I flashed CM9 the other day and it was taking over 20 min to activate and I did a battery pull, then I restarted and it activated just fine.
then i started reading all these posts about how that will break your IMEI and it got me wondering because I no longer get 4g, I get 3G just not 4G.
before I did this my MEID read the same as my IMEI but had less numbers. (just like 2 or 3) after doing *2767*3855# go back into status and see that I now have HEX and DEC under MEID which I did not have BEFORE the *2767*3855#
my question is - is there a way to test the 4G some how - I checked VZW site it says I am in a 4G area, is there a number of sort I can look at in status or somewhere else on my phone?
I'm new to this can someone tell me would in use those same commands on terminal emulator to get it? And I'm on unofficial cynogen right now so my next question is if I do corrupt it how do I place the imei back to get it woeking? Thanks
Sent from my SCH-I535 using xda premium
ruben8448 said:
I'm new to this can someone tell me would in use those same commands on terminal emulator to get it? And I'm on unofficial cynogen right now so my next question is if I do corrupt it how do I place the imei back to get it woeking? Thanks
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
yes use
su
dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.sbn
and to restore
su
dd if=/sdcard/efs.sbn of=/dev/block/mmcblk0p11
reboot
ruben8448 said:
I'm new to this can someone tell me would in use those same commands on terminal emulator to get it? And I'm on unofficial cynogen right now so my next question is if I do corrupt it how do I place the imei back to get it woeking? Thanks
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
If using terminal emulator just skip straight to the line that has "su" on it and go from there. Same thing when putting it back in after it gets messed up.
The key is to put it somewhere safe as it will store it on your internal sdcard. This is called "sdcard" on your device. I just sent a copy to my drop box.
If it gets mesed up, then I would Odin back to stock rooted and just take the copy you have stored somewhere other than on your phone and put it back in the "sdcard" but not in any folder, just in the root directory. Then simply follow the restore directions in the OP but skip straight to the SU line.
That said. I'm still waiting until the RIL gets fixed. TW isn't that bad and with the mods and replacement launchers and apps the phone is nearly stock anyway. I'm being patient.
Sent from my SGS3
tprouty said:
so I have a question about this -
I flashed CM9 the other day and it was taking over 20 min to activate and I did a battery pull, then I restarted and it activated just fine.
then i started reading all these posts about how that will break your IMEI and it got me wondering because I no longer get 4g, I get 3G just not 4G.
before I did this my MEID read the same as my IMEI but had less numbers. (just like 2 or 3) after doing *2767*3855# go back into status and see that I now have HEX and DEC under MEID which I did not have BEFORE the *2767*3855#
my question is - is there a way to test the 4G some how - I checked VZW site it says I am in a 4G area, is there a number of sort I can look at in status or somewhere else on my phone?
Click to expand...
Click to collapse
Download the "Phone Info" app and see if you can change it to get 4g again. if not, you might wanna try restoring back to stock using ODIN to see if that helps.
tprouty said:
yes use
su
dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.sbn
and to restore
su
dd if=/sdcard/efs.sbn of=/dev/block/mmcblk0p11
reboot
Click to expand...
Click to collapse
Thanks, its backed up. I feel better now in case i need to restore back to stock. I appreciate it.
ruben8448 said:
Thanks, its backed up. I feel better now in case i need to restore back to stock. I appreciate it.
Click to expand...
Click to collapse
No problem
Done. Thanks!
Worked like a charm! Would love to hear about someone actually restoring it now.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
One of the more helpful posts I have seen to this point (provided it actually works to recover lost IMEI's). This issue was probably making many people hesitant, having a safeguard is always good. This is also extremely easy to do.
xMopx said:
Hi guys,
I tried flashing AOKP on my S3 yesterday and had my IMEI value set to zero, a rare(ish) error that some users have been running into with AOKP and the unofficial Cyanogen builds for this phone. If your IMEI is lost and you don't have a backup, your phone is basically toasted. So, I had to get my phone replaced which wasn't much trouble.
Click to expand...
Click to collapse
I flashed CM10 on my S3 from the rooted Bean rom and I can confirm that with a clean install my IMEI is missing and I have no "own number".
I do however have working data, phone, messaging. Could you explain what you mean by a phone being "toast". Is there some other consequence I'm not seeing yet? If I go to another rom or back to stock is my phone going to brick?
I've seen bits of pieces of info about the missing IMEI, and I'm hoping somebody can clarify what this means for me since my phone is technically working as expected.
Thanks
---------- Post added at 01:32 PM ---------- Previous post was at 01:25 PM ----------
sooner2k1 said:
I flashed CM10 on my S3 from the rooted Bean rom and I can confirm that with a clean install my IMEI is missing and I have no "own number".
I do however have working data, phone, messaging. Could you explain what you mean by a phone being "toast". Is there some other consequence I'm not seeing yet? If I go to another rom or back to stock is my phone going to brick?
I've seen bits of pieces of info about the missing IMEI, and I'm hoping somebody can clarify what this means for me since my phone is technically working as expected.
Thanks
Click to expand...
Click to collapse
Sorry I just wanted to clarify. My IMEI is existing, but "My phone number" is blank. Also something called "MIN" is blank. I have been getting a popup asking me for a sim unlock.
Sorry for any confusion. Please ignore if i'm derailing the thread. It just sounds like a similar issue.
Worked using android terminal, on my ATT S3. Nice to know I have a backup -- eases my mind just a bit.
Well, a couple of things.
1. I'm on TMo
2. I'm on CM9
I have two phones...one borked and one good.
Went ahead and tried this..when I did the re-provision thing I got an error Connection problem or invalid MMI code. I assume that this is caused by being on TMo.
Bottom line, my serial # is for the correct phone, and this did not move over my IMEI from my working phone. My borked phone still shows IMEI 0
zonly1 said:
Well, a couple of things.
1. I'm on TMo
2. I'm on CM9
I have two phones...one borked and one good.
Went ahead and tried this..when I did the re-provision thing I got an error Connection problem or invalid MMI code. I assume that this is caused by being on TMo.
Bottom line, my serial # is for the correct phone, and this did not move over my IMEI from my working phone. My borked phone still shows IMEI 0
Click to expand...
Click to collapse
As per the OP, it makes sense that it didn't work for you. We need someone with a valid backup to test this theory out to see if it restores their IMEI.
kssxs said:
As per the OP, it makes sense that it didn't work for you. We need someone with a valid backup to test this theory out to see if it restores their IMEI.
Click to expand...
Click to collapse
If a brand new phone is not good enough, I'm not too sure what else is...just sayin'.
zonly1 said:
If a brand new phone is not good enough, I'm not too sure what else is...just sayin'.
Click to expand...
Click to collapse
You did do a reboot after attempting to restore correct? Keep in mind, Verizon due to it's dual type of network (CDMA/LTE) has that extra need for the provisioning, thus the code they use to activate is needed. Remember we use GSM, there is no special activation needed except pop a SIM in and power up. Try putting your SIM in the old phone and powering on.
Hi,
I have a note 3 neo, 7505 and i updated the firmware. It was all working good for a week then i was listening to soundcloud to sleep and the phone restarted, since then the phone doesn't have an imei and says to insert sim card, and of course unknown modem..
Anyway, i created a backup of the efs using twrp, i have tried gazillion ways to restore the backup and gazillion manual ways too. Going to stock recovery... trying to copy manually the nvdata and all but it doesnt resolve. The files are placed there, i can see it in the shell but the thing just wont work!
i don't know how to proceed to this, i don't know if its a hardware fault, had it been that, shouldnt have i gotten the efs corrupted or some issue? could it be that the hardware itself is damaged all of a sudden? i dont think so, i pretty much think its the efs and yet i cant restore it?
should i attach my efs folder if someone can look through hex editor or logs to suggest a possible solution?
Thanks a lot and also i have search through and proceeded with many solutions and after that created a thread. hope someone can help.
P.S. I just noticed the serial number can be seen in phone status, so apparently its reading NVdata? or is it getting it from elsewhere? how to test if its a hardware fault?
penandweb said:
Hi,
I have a note 3 neo, 7505 and i updated the firmware. It was all working good for a week then i was listening to soundcloud to sleep and the phone restarted, since then the phone doesn't have an imei and says to insert sim card, and of course unknown modem..
Anyway, i created a backup of the efs using twrp, i have tried gazillion ways to restore the backup and gazillion manual ways too. Going to stock recovery... trying to copy manually the nvdata and all but it doesnt resolve. The files are placed there, i can see it in the shell but the thing just wont work!
i don't know how to proceed to this, i don't know if its a hardware fault, had it been that, shouldnt have i gotten the efs corrupted or some issue? could it be that the hardware itself is damaged all of a sudden? i dont think so, i pretty much think its the efs and yet i cant restore it?
should i attach my efs folder if someone can look through hex editor or logs to suggest a possible solution?
Thanks a lot and also i have search through and proceeded with many solutions and after that created a thread. hope someone can help.
P.S. I just noticed the serial number can be seen in phone status, so apparently its reading NVdata? or is it getting it from elsewhere? how to test if its a hardware fault?
Click to expand...
Click to collapse
The point is that TWRP creates faulty EFS backups on many devices which can't be restored properly.
There are different backup solutions (e.g. EFS Pro) confirmed working which may help you prevent future issues. I prefer the manual backup using adb shell or terminal emulator:
dd if=/dev/block/mmcblk0pXX of=/storage/SdCard/efs.img bs=4096
(XX needs to be replaced with the model specific partition number as they use different partition tables)
Restore:
dd if=/storage/SdCard/efs.img of=/dev/block/mmcblk0pXX bs=4096
thanks LS.xd, but i guess i have a pretty solid backup as i did create backup various ways, some were corrupt, but one that i working with has nvdata and every other file along with imei pretty intact....
i can open it up with winrar, and open the nvdata with hexeditor, i was wondering if i could confirm some way that the back up is actually 100% solid?
wondering if the partition's aren't aligned. I don't know for sure if EFS folder in the root directory is the same as being pointed by /mmcblkp03/platform/by-name/EFS ?
i mean they should be the same thing, its just a redirection right?
what should i be doing now? the baseband is unknown and the imei wont just work, waste the phone? or it could be done via some boxes or some other process?
there must be a starting point? isn't there some way i could use a generic imei and just any modem? then i could replace nvdata may be? right now, i'm installing various versions of stock firmware and repeatedly placing old efs data in various ways and i kind of turning hopeless. first i lost a nexus then i bought a g4 last month, gave me a bootloop just a week after, gone dead. then i bought the n3n and now this..... i mean 3 phones in a row..... i really hope this could work..
penandweb said:
there must be a starting point? isn't there some way i could use a generic imei and just any modem? then i could replace nvdata may be? right now, i'm installing various versions of stock firmware and repeatedly placing old efs data in various ways and i kind of turning hopeless. first i lost a nexus then i bought a g4 last month, gave me a bootloop just a week after, gone dead. then i bought the n3n and now this..... i mean 3 phones in a row..... i really hope this could work..
Click to expand...
Click to collapse
So you got some non TWRP made EFS backup, too? You can list your partitions using shell:
[email protected]:/ # cat /proc/emmc
You can use the dd command once you know the layout. Backups not generated manually may only be restored with the specific app/version and are probably not compatible using other restore methods. For my OnePlus 3 EFS backup can generated fine using TWRP but restoring it screws up the partition. Manually created image works fine. As I don't have a Note 3 Neo I don't know how it behaves for your device.
any idea how would i go on about inspecting the nvdata.bin? i'm in hex editor trying to see something resembling imei but its just so much garbage except a few lines.
i can't be sure whether its corrupt or not...
in efs -> imei -> a file called mps_code.dat i open it up in hex editor, and it has only 3 characters.....
is it possible i could initially use a generic imei and modem and later on populate it with actual somehow or just keep using generic one for now until i find a better solution, using hex editor or something...?
there are some tutorials on qualcom.. none for exynos but it should happen the same way, somewhere in nvdata, you place the imei ... and it would be generic method for most exynos devices...
i wish someone could guide me to that...
also can it be restored via "boxes"?
penandweb said:
any idea how would i go on about inspecting the nvdata.bin? i'm in hex editor trying to see something resembling imei but its just so much garbage except a few lines.
i can't be sure whether its corrupt or not...
in efs -> imei -> a file called mps_code.dat i open it up in hex editor, and it has only 3 characters.....
is it possible i could initially use a generic imei and modem and later on populate it with actual somehow or just keep using generic one for now until i find a better solution, using hex editor or something...?
there are some tutorials on qualcom.. none for exynos but it should happen the same way, somewhere in nvdata, you place the imei ... and it would be generic method for most exynos devices...
i wish someone could guide me to that...
also can it be restored via "boxes"?
Click to expand...
Click to collapse
After 3 years I had to retire my HTC One S. I flashed roms and firmwares up to 3-4 times a week without having any issues. One sunny day some update bricked then nvdata. I spent a bunch of hours trying to restore it in different ways, extracted data from stock firmware as well as using dumps from other user's phones, as some users reported this error fixed doing so. Even when the files was identical it just did not work for me. Changing the mainboard was the only possible solution so I decided to get a new device.
All I want to say is try to restore a valid backup in a way confirmed working. If you don't have a usable backup ask in your device's forum for somebody may upload it. Or spend 100 hours messing around with hex editors until you reach then point where you realize its cheaper to switch the device as wasting a year's holidays browsing the internet for some solution.
Hey everyone!
I have a Teclast M30 (MTK6797) tablet.
I updated it to the latest firmware with the flashing tool, and lost my IMEI and SIM card capabilities.
No baseband, IMEIs are null.
Things I tried:
- Restore NVRAM, NVCFG and NVDATA with the flashing tool, after editing the scatter file to make them downloadable.
- Used TONS of tools, like various versions of MauiMETA, ModemMETA, SN Write Tool, R&W tool, and others.
- Use MDDB & APDB files from other/older FW versions.
- Relocking the bootloader, just for kicks.
- Generating MP0B_001 file and placing it into the directory mentioned in a post here.
- Obviously, different SIM cards, to eliminate the possibility.
- Using the technician code in the dialer. The relevant option is not listed in the Communications tab.
Any suggestion is welcomed. I really have no idea what to do at this point, especially considering that the tablet is being used constantly due to the quarantine, and ordered a SIM card to allow family members to communicate via video where there's no WiFi.
Thank you and best health!
munky-head said:
Hey everyone!
I have a Teclast M30 (MTK6797) tablet.
I updated it to the latest firmware with the flashing tool, and lost my IMEI and SIM card capabilities.
No baseband, IMEIs are null.
Things I tried:
- Restore NVRAM, NVCFG and NVDATA with the flashing tool, after editing the scatter file to make them downloadable.
- Used TONS of tools, like various versions of MauiMETA, ModemMETA, SN Write Tool, R&W tool, and others.
- Use MDDB & APDB files from other/older FW versions.
- Relocking the bootloader, just for kicks.
- Generating MP0B_001 file and placing it into the directory mentioned in a post here.
- Obviously, different SIM cards, to eliminate the possibility.
- Using the technician code in the dialer. The relevant option is not listed in the Communications tab.
Any suggestion is welcomed. I really have no idea what to do at this point, especially considering that the tablet is being used constantly due to the quarantine, and ordered a SIM card to allow family members to communicate via video where there's no WiFi.
Thank you and best health!
Click to expand...
Click to collapse
Flash the stock firmware that you previously had on the device before you updated. It might restore your IMEI.
Other than that, as stated in the XDA forum rules, we can't help you retore your IMEI unless you made an IMEI backup before the issue started. You obviously didn't create an IMEI backup so we can't help you with restoring it.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
Flash the stock firmware that you previously had on the device before you updated. It might restore your IMEI.
Other than that, as stated in the XDA forum rules, we can't help you retore your IMEI unless you made an IMEI backup before the issue started. You obviously didn't create an IMEI backup so we can't help you with restoring it.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Hey, thanks for replying.
The action I took was the update of the official firmware.
No, unfortunately I haven't backed up my IMEI partitions, not that even at this point - I know which partitions are these.
As I said, I have the number printed out on the box the device shipped in, therefore essentially I'm looking for help in restoring this partition.
I made several restores to the official firmware, new and old, but IMEI isn't being restored. Hoping there's an actual solution to this - we need this SIM for WhatsApp communication, keeping in touch with family at very restrictive times.
munky-head said:
Hey, thanks for replying.
The action I took was the update of the official firmware.
No, unfortunately I haven't backed up my IMEI partitions, not that even at this point - I know which partitions are these.
As I said, I have the number printed out on the box the device shipped in, therefore essentially I'm looking for help in restoring this partition.
I made several restores to the official firmware, new and old, but IMEI isn't being restored. Hoping there's an actual solution to this - we need this SIM for WhatsApp communication, keeping in touch with family at very restrictive times.
Click to expand...
Click to collapse
I understand your situation perfectly....
But...
That doesn't change anything about my reply.
As stated, the XDA rules only allow us to help with restoring from an IMEI backup. The reason for this is because anything that involves using a flashtool or other methods to rewrite your IMEI can be used, by others that might see it, for nefarious purposes, such as using the instructions that we might give as a means to change the IMEI on a stolen device or a blacklisted device in order to activate the device, which is illegal in a lot of places. Therefore, those kinds of discussions are not allowed here, regardless of your reason or your needs. This rule is in place to protect a potential user's privacy and device security.
Sorry, can't help you at all. Keep searching on your own in other places other than XDA.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
I understand your situation perfectly....
But...
That doesn't change anything about my reply.
As stated, the XDA rules only allow us to help with restoring from an IMEI backup. The reason for this is because anything that involves using a flashtool or other methods to rewrite your IMEI can be used, by others that might see it, for nefarious purposes, such as using the instructions that we might give as a means to change the IMEI on a stolen device or a blacklisted device in order to activate the device, which is illegal in a lot of places. Therefore, those kinds of discussions are not allowed here. This rule is in place to protect a potential user's privacy and device security.
Sorry, can't help you at all. Keep searching on your own in other places other than XDA.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
I understand, obviously it's not the case here, but I wouldn't want to break any rules.
I haven't found a solution in days, before arriving here to ask. So, if someone sees it and has an idea, I would appreciate help, even with PMs.
The main purpose of utilizing a SIM card at all is whatsapp, it's not like we're going out in the near future.
Contacted Teclast's support, which explained that the IMEI partition was wiped, and the tablet has to be shipped back for a reflashing.
This is impossible as we're in quarantine, and we use the tablet daily. So... if there aren't any suggestions - guess we'll stay on WiFi, w/o WhatsApp.
https://androidmtk.com/download-mobileuncle-apk
It's in the GPRS settings.
Use the third (oldest) is best into
But as you said, it's on the box, so it's no biggie.
Set, reboot.
Anyone left with some humanity is requested to PLEASE HELP ME if you have a Redmi 6a device or know a guy with redmi 6a device.
I actually bricked my device unintentionally and did found a way to get out using SP Flash Tool, However the thing I am stuck in right now is worse than bricking a phone.
Both SIM Cards are not working. I did a lot of research and found that I need two files:
[nvdata.img] [nvram.bin]
Unfortunately I don't have any backup for this. Now what I am looking for is some kind hearted person who can take a backup of their [nvdata] [nvram] partition and give it to me and I'll replace all their data like IMEI numbers etc with my own. I have my IMEI numbers ready to be feeded. I did a lot of try using those engineering ROMS and Tools. NOTHING WORKS!
I regret my decision of jumping in something I don't know about. I want you to please have pity on me so that I don't have to live without my phone.
==============CURRENTLY ON NEGHBOURS WIFI WHO CAN CHANGE PASSWORD ANYTHIME IF HE GETS TO KNOW THAT I HAVE HIS PASSWORD BEFORE HE DOES THIS PLEASE GET ME OUT OF THIS SO THAT I CAN USE MY OWN PHONE FOR INTERNET. I AM COMPLETELY DEPENDENT ON CELLULAR DATA!===============
====YA I AM THIS MUCH POOR!!!==== NO MONEY FOR A NEW PHONE====I AM NOT STEALING ANYONE'S IMEI====PLEASE HELP!=====PLEASE HELP FOR HUMANITY
Edit : root your phone, and then follow this page https://forum.hovatek.com/thread-25458.html it worked for me
Tab E said:
Edit : root your phone, and then follow this page https://forum.hovatek.com/thread-25458.html it worked for me
Click to expand...
Click to collapse
I tried it but it still shows imei unknown. What device is your fixed mobile phone? xiaomi or some other?
IMEI gets added to mobile device when it's built. It's stored in device's /EFS and/or /NVRAM partition. If you haven't backed up this partition before you flashed a new ROM then you have lost unless the IMEI is printed on the box in which device has been delivered.
jwoegerbauer said:
IMEI gets added to mobile device when it's built. It's stored in device's /EFS and/or /NVRAM partition. If you haven't backed up this partition before you flashed a new ROM then you have lost unless the IMEI is printed on the box in which device has been delivered.
Click to expand...
Click to collapse
I have both imei numbers on the phone's box, Thank God, but the problem is how to have them working in the phone
Look inside here:
(2023) How To Change IMEI Number of Android Phones (Latest)
Latest tricks to change the IMEI number of android phones easily without rooting your android phone. so change a serial number of your android device in 2023.
itechhacks.com