Long story short, I've got a Rogers Note II i317M that I did NOT modify, but someone else did. I suspect they flashed a ROM for the wrong type, therefore the IMEI under status shows unknown, and *#06# gives Null/Null.
I've checked, and the efs folder is empty. There is no backup made. Is it possible to use somebody else's efs folder, and enter in the IMEI/specific info? I have the IMEI and SN, or is it much more involved?
I'm not familiar with how to use Odin to re-partition (never done that). Could that possibly restore the files needed? The phone will not connect to any towers nor recognize a SIM card.
THanks in advance for any help.
-Adam
Hi, my N7105 has lost the capability of reading its IMEI (and even knowing what model it is) after I flashed this: http://forum.xda-developers.com/showthread.php?t=2531965
I have an EFS backup, but it's useless, it seems that I need the param_bin for the N7105, because as I've read, the phone didn't really lost its IMEI, it only can't access it. Please help me!
Solved. Just flashed the via Odin the .bin files that were inside the .tar.gz backup made with EFS Pro, then the IMEI, model number and signal got back. Then EFS Pro was able to recognize my phone and restored the full backup, now even the serial number is restored. Hope this helps anyone who finds himself in a similar situation.
I am in a the same situation, but my efs backup is just a efs.img created by efs_backup_restore_win.
Restoring using it can't bring back my imei.
[Edit] EFS pro keep saying Device not connected. But I already granted the ADB connection in my phone.
Hello,
I have screwed up my IMEI after some risky operations. I have a backup of EFS partition (folder), which is useless, since it doesn't contain my IMEI, which I haven't checked previously and just dumbly/blindly relied on it containing my IMEI. The big question is, where is IMEI stored on galaxy s4 mini LTE (I9195)? I tried to restore using several methods, like:
EFS Professional Qualcomm Tools, by writing my original IMEI, but it still doesn't do any changes, nor before restart of the phone, nor after.
NV Items Reader/Writer - same result as EFS Qualcomm. Same goes to QPST tools.
Tried reboot nvrestore through adb/console, but i haven't had made backup previously.
I guess it stores it in some other partition. Also, after research done, there have been claims that phone stores backup of nv_data in some partition and automatically restores it if there are differences between backup and real imei. Or phone just restores backup automatically on each phone bootup. Either way, I must've screwed really big, since on my adventures both are wiped and my nulled IMEI seems to be right for the phone.
I include a PIT file.
Seems like I am the only one unlucky in this situation, cause there are no similar topic on this forum or internet altogether concerning EFS and I9195.
.PIT FILE
any1?
well i had a i9000 before. and there was always a efs backup made when you installed cm for example. i screwed my imei also more than once on this phone and restored it by installing an factory image from samsung. i has to be a complete image with all parts for odin i think.
OT: here are less developers around. this phone isn't so much supported as i thought it would be. but i really dont want to buy a 5inch just to have developer support so i hope someone will be able to help you.
x10isrooted said:
well i had a i9000 before. and there was always a efs backup made when you installed cm for example. i screwed my imei also more than once on this phone and restored it by installing an factory image from samsung. i has to be a complete image with all parts for odin i think.
OT: here are less developers around. this phone isn't so much supported as i thought it would be. but i really dont want to buy a 5inch just to have developer support so i hope someone will be able to help you.
Click to expand...
Click to collapse
You are right, it does make a some kind of backup, which manually could be made through adb with command "reboot nvbackup", but my problem is that either I don't have that backup, or it somehow has made a backup of efs after it was corrupted. Somewhere in this forum i saw someone writing that reboot nvbackup command backups efs to fsg and backup partitions, but I through-Hex-checked it, no trace of any content of efs/nvdata.(Or it is encrypted somehow.). Also I did recieved backup and fsg partitions of healthy phone, and checked-through it. Same story.
In despair I stormed every single partition on the phone I could reach. The only partition containing contents of efs (also IMEI) was mmcblk0p24, which stores userdata and mounts on root as /data. I doubt it's legitimacy, since as far as I know, it gets wiped after factory reset, so it couldn't be the place sensitive data are stored. Now I am waiting to receive a healthy phones userdata.img.ext4 partition backup to get memory addresses of IMEI location and to be able to write my IMEI in my userdata.img.ext4 backup. Cross fingers, but doubt this will work.
Also, I didn't check loop# and ram# partitions under /dev/block/. This will be my next step, if writing and restoring userdata fails, which probably will.
farewellartist said:
Hello,
I have screwed up my IMEI after some risky operations. I have a backup of EFS partition (folder), which is useless, since it doesn't contain my IMEI, which I haven't checked previously and just dumbly/blindly relied on it containing my IMEI. The big question is, where is IMEI stored on galaxy s4 mini LTE (I9195)? I tried to restore using several methods, like:
EFS Professional Qualcomm Tools, by writing my original IMEI, but it still doesn't do any changes, nor before restart of the phone, nor after.
NV Items Reader/Writer - same result as EFS Qualcomm. Same goes to QPST tools.
Tried reboot nvrestore through adb/console, but i haven't had made backup previously.
I guess it stores it in some other partition. Also, after research done, there have been claims that phone stores backup of nv_data in some partition and automatically restores it if there are differences between backup and real imei. Or phone just restores backup automatically on each phone bootup. Either way, I must've screwed really big, since on my adventures both are wiped and my nulled IMEI seems to be right for the phone.
I include a PIT file.
Seems like I am the only one unlucky in this situation, cause there are no similar topic on this forum or internet altogether concerning EFS and I9195.
Click to expand...
Click to collapse
You've found the address of IMEI? I also did not find my IMEI in a full backup of EFS partition. I also do not believe that it is in mmcblk0p24, if it were, would lose the IMEI on a factory reset.
Sorry for bad English... :silly:
lrdslr said:
You've found the address of IMEI? I also did not find my IMEI in a full backup of EFS partition. I also do not believe that it is in mmcblk0p24, if it were, would lose the IMEI on a factory reset.
Sorry for bad English... :silly:
Click to expand...
Click to collapse
Yes, I think, that I have found it, but this is difficult. I haven't slept for over 40 hours, I'll convert this thread into research thread after I get some sleep. But for now, short version.
Using Cygwin, i have backed up healthy phones every single partition in .RAW format (which backs up not only files, but every single bit of memory) , including phones whole memory partition (mmcblk0), all 7 loop and 15 ram partitions and then hex checked them. What I've discovered is: that none of partitions contain IMEI nor in HEX or STRING format except mmcblk0p24, which contains 24 entries in my case in STRING format. BUT the whole phone memory block (mmcblk0) contains 60+ entries ..
If we weight information (considering all backups were made in .RAW format) that none of the partitions contain IMEI and IMEI is stored in whole memory block, I think we probably can conclude, that IMEI is not stored in any file on the phones memory. (And this is concluded based on information I got on backing up mmcblk0 using cygwin in .bin format. After hex checking file, it also contained around 24 entries, which is roughtly the same as userdata partition.) It is stored in phones memory not as a file, but as written bits in memory, which are not FRS recognizable.
I only I could restore .RAW format backups, this problem could easilly be solved. Damn, if I mange to solve and fill lacking information bits that spoils a big picture, I won't hesitate to spare one day of my life to actually create a tool to solve this. This has been a long and painful process,
Hi, I know this is an old topic, but I 've got same issue and I'd like to know if someone successed to re-write the IMEI on S4 mini LTE.
Thanks.
I have an AT&T S3 which, during some shenanigans I don't remember, was encrypted with a password I could not retrieve. I used Odin to erase the phone's NAND because I had a nandroid backup. This backup, however, was corrupted. I was able to use Odin to flash a stock firmware, but I now only have access to EDGE instead of LTE.
I have restored EFS and NV backups from another AT&T S3 with my IMEI and serial written to them, and my serial and IMEI display correctly in my phone's status window.
I have tried flashing every available modem for the phone.
I have tried numerous APN settings and *#*#INFO*#*# settings.
I have tried damn near every solution to similar problems in this forum.
Any more ideas?
Where did you get your EFS and NV, and how did you restore them?
shortydoggg said:
Where did you get your EFS and NV, and how did you restore them?
Click to expand...
Click to collapse
I used EFS Pro + Qualcomm tools to backup the EFS folder and NV data from a working AT&T S3. Doing this brought back my IMEI, but did not much else otherwise.
EDIT: To clarify, I used the tools to write my specific imei and serial to the backup before restoring that to my phone.
Ok, a lot of these usually don't get fixed, but I'm going to stick to here what worked for some.
First, I'm going to assume that you injected your IMEI correctly. I would next use the EFS Pro to format your EFS from the restore option at the top (then clicking format EFS), since that EFS came from another phone. Your EFS folder will automatically be re-created when you later reboot.
Next, I would download and unzip the attached file. Inject the .txt file with the nv reader /writer. The nv reader writer can be found in this thread.
http://forum.xda-developers.com/showpost.php?p=29514032&postcount=1
Follow steps 1-4, but instead of reading, you're writing the .txt file that you unzipped to your NV. It only contains missing information and should not touch your IMEI. Do not change the dec or hex range.
Reboot the phone and see what happens.
After i flash CM11 my imei is gone and i forget to backup my efs. How to get back my IMEI?? Back flashing my firmware region? Or what? Please help me. Thanks so much if you help me to solved my problem [emoji1]
EFS is a system folder in the root directory of your phone that contains very important and basic information about your device's identity like Wi-Fi MAC address, Bluetooth MAC address and the MOST IMPORTANT - IMEI address (nv_data.bin).
Now if this EFS partition accidentally gets corrupted or erased, your phone’s IMEI number will get erased and your device will become completely useless and you won't be able to make voice call further, as the carrier network will not recognize your phone. This can happen for a variety of reasons, sometimes flashing a wrong or corrupted ROM. This kind of damage is not accepted by the service center. Only solution that the service center provides is to replace the motherboard of the device and that costs a lot of $$$!
Only a BACKUP of your EFS can save your phone if something goes wrong with your EFS partition.
(Some of you have already messed up your IMEI. Check Troubleshooting forum for details.)
ORIGINAL POST:
http://forum.xda-developers.com/showthread.php?t=2420902