Database Users

EFS IMEI Backup?

I have root my S4 and will make a backup from efs/imei but EFS Professional not working with the S4. How can i backup efs?

is it so hard to get a copy of ur EFS folder to safe place ?

You can use TWRP recovery to get a EFS backup
Gesendet von meinem GT-I9505 mit Tapatalk 2

You can back up a whole partition with Terminal Emulator from Play Store.
This is example made for I9505 ONLY!!!!
For I9500 use mmcblk0p3 and efs.img instead!!!
Download it , and run it, then type:
Code:
su
dd if=/dev/block/mmcblk0p10 of=/mnt/sdcard/efs.img.ext4
and it will dump whole partition into one file efs.img.ext4 on your internal SD card
or
Code:
su
dd if=/dev/block/mmcblk0p10 of=/mnt/extSdCard/efs.img.ext4
to save it on external SD.
If something goes wrong and you need to restore it:
Code:
su
dd if=/mnt/sdcard/efs.img.ext4 of=/dev/block/mmcblk0p10
or
Code:
su
dd if=/mnt/extSdCard/efs.img.ext4 of=/dev/block/mmcblk0p10
Keep it safe and enjoy

djembey said:
You can back up a whole partition with Terminal Emulator from Play Store.
Download it , and run it, then type:
Code:
su
dd if=/dev/block/mmcblk0p10 of=/mnt/sdcard/efs.img
and it will dump whole partition into one file efs.img on your internal SD card
or
Code:
su
dd if=/dev/block/mmcblk0p10 of=/mnt/extSdCard/efs.img
to save it on external SD.
If something goes wrong and you need to restore it:
Code:
su
dd if=/mnt/sdcard/efs.img of=/dev/block/mmcblk0p10
or
Code:
su
dd if=/mnt/extSdCard/efs.img of=/dev/block/mmcblk0p10
Keep it safe and enjoy
Click to expand...
Click to collapse
With all respect to your post, I would like to warn people that this is not working for all the models/devices. Although it might look fine when executing the commands, it might not have made a backup of EFS, but of something else... What I know for sure is that it will not work for atleast the international i9505-model of the S4, as the partition layout is different.
In my post below, more details are given on this partition id.
http://forum.xda-developers.com/showthread.php?t=2276599
While executing your commands does not affect the device, it does not always give the people a backup they expect it to be, depending on their device/model. In my case you are able to verify which 'mmcblk' is actually efs on your device. It also gives a TAR backup as option.

Mr_Q said:
With all respect to your post, I would like to warn people that this is not working for all the models/devices. Although it might look fine when executing the commands, it might not have made a backup of EFS, but of something else... What I know for sure is that it will not work for atleast the international i9505-model of the S4, as the partition layout is different.
In my post below, more details are given on this partition id.
http://forum.xda-developers.com/showthread.php?t=2276599
While executing your commands does not affect the device, it does not always give the people a backup they expect it to be, depending on their device/model. In my case you are able to verify which 'mmcblk' is actually efs on your device. It also gives a TAR backup as option.
Click to expand...
Click to collapse
Mate... I've added that it is for I9505!!!!
I9500 have EFS located @ mmcblk0p3...........
thanks

I used GS2 repair from play store. It went through the usual process and I can see the back up file on the sd card. Can anybody more qualified confirm if this app works on S4?
Sent from my GT-I9505 using xda premium

djembey said:
Mate... I've added that it is for I9505!!!!
I9500 have EFS located @ mmcblk0p3...........
thanks
Click to expand...
Click to collapse
Great. You are right, in my case it's mmcblk0p10 as well, as mentioned correctly in my guide already.
Thank you for updating.
HANDSY said:
I used GS2 repair from play store. It went through the usual process and I can see the back up file on the sd card. Can anybody more qualified confirm if this app works on S4?
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
The best thing is to check it with the developer. I do not know what file has been created, although I expect it to be a raw copy using dd. The best thing is to do it manually. Or by the instructions given by djembey, or by the more detailed step-by-step instructions in the thread of my previous post here.

Hey, I managed to backup the EFS folder. Is there any way to modify the backup file and restore it after the modification? I want to change the IMEI number but unfortunately I have no box / cables available to do so. There must be a solution?! I am currently living in Turkey and they restrict western mobile phone usage for foreign people.
thanks a lot
cheers,
ralf

,
ralfa1234 said:
Hey, I managed to backup the EFS folder. Is there any way to modify the backup file and restore it after the modification? I want to change the IMEI number but unfortunately I have no box / cables available to do so. There must be a solution?! I am currently living in Turkey and they restrict western mobile phone usage for foreign people.
thanks a lot
cheers,
ralf
Click to expand...
Click to collapse
Same here with me

i9505 imei null
please can somebody help me,what ever I try not working.Unfortynately everything working,but always show imei null and not have baseband,of course and network too.I am install with Odin few different fabrics roms or how you call that.Last is this one with 4 files inside
I9505XXUGNG8_I9505OXXGNG2_I9505XXUGNG8_HOME.tar.Everything going fine,but havent imei like on start.I am also try few different things with EFS_Professional.but cannot fix my problem.Also I am try to erase EFS,but folder cannot erase,just files inside,and trying other one downloaded from net,but not going.Every time after reboot,EFS be back automatics,Can you help me ,please
If I am write inside EFS folder must be a file nv_data.bin ,I dot have that.Have lots of,but dont see that.I have inside few folders,like imei and etc.. And inside imei folder I have mps_code.dat.I am hope somebody can understand my problem.Can somebody sent to me that file,and can I take from other phone.Is that my solution,or what.HELP PLEASE

this is in function to my i9505,but not help me to solve problem.Somehow I not have file nv_data.bin on my phone in efs folder,and backup and restore not help me.Please do you no some solutions?

How backup and restore imei

So, you will need YOUR WORKING phone, root and terminal emulator
For backup open emulator and write:
su
(your phone will ask you for root acces)
dd if=dev/block/mmcblk0p3 of=removable/MicroSD/mmcblk0p3.img
dd if=dev/block/mmcblk0p5 of=removable/MicroSD/mmcblk0p5.img
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: ...of=removable/storage/mmcblk0p3.img or mmcblk0p5.img)
-now you have your imei restored in your sdcard
For restore:
you will need YOUR i say again YOUR backuped mmcblk, of you will use ANOTHER mmcblk0p3 you will get fake imei (some like 0004488xxxx) and your calling will never work.
so, open again terminal:
su
(your phone will ask you for root acces)
dd if=removable/MicroSD/mmcblk0p3.img of =dev/block/mmcblk0p3
dd if=removable/MicroSD/mmcblk0p5.img of =dev/block/mmcblk0p5
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: dd if=removable/storage/mmcblk0p3.img or mmcblk0p5.img.....)
now restart phone , and open dialer y will see for some secund "actualising database of contacts"
then press *#06*
you will see your imei
this works !! i sayed beacuse after instal tanks alfa AOSP 5.0 i got "fake" imei, but thanks got i have backuped my imei so i restored them i its work
IF THIS INSTRUCTION WILL NOT WORK
1) you have propably motherboard broblem i have them too, and repair is very expensive ( more then 100 euros), so pls control your dev/block/ ind try found mmcblk0p3 or mmcblk0p5 if you have it in dev/block/ i have bad masege for you , you will need new motherboard, but good massage is then you didnt lost your imei in fact:
2)you used bad mmcblk0p3 or mmcblk0p5
3)you have propably mistake in proses
I hope it will help you.
and sorry for my english i hope then y understand me

kihope12 said:
So, you will need YOUR WORKING phone, root and terminal emulator
For backup open emulator and write:
su
(your phone will ask you for root acces)
dd if=dev/block/mmcblk0p3 of=removable/MicroSD/mmcblk0p3.img
dd if=dev/block/mmcblk0p5 of=removable/MicroSD/mmcblk0p5.img
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: ...of=removable/storage/mmcblk0p3.img or mmcblk0p5.img)
-now you have your imei restored in your sdcard
For restore:
you will need YOUR i say again YOUR backuped mmcblk, of you will use ANOTHER mmcblk0p3 you will get fake imei (some like 0004488xxxx) and your calling will never work.
so, open again terminal:
su
(your phone will ask you for root acces)
dd if=removable/MicroSD/mmcblk0p3.img of =dev/block/mmcblk0p3
dd if=removable/MicroSD/mmcblk0p5.img of =dev/block/mmcblk0p5
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: dd if=removable/storage/mmcblk0p3.img or mmcblk0p5.img.....)
now restart phone , and open dialer y will see for some secund "actualising database of contacts"
then press *#06*
you will see your imei
this works !! i sayed beacuse after instal tanks alfa AOSP 5.0 i got "fake" imei, but thanks got i have backuped my imei so i restored them i its work
IF THIS INSTRUCTION WILL NOT WORK
1) you have propably "second" problem with imei i have them too, so pls control your dev/block/ ind try found mmcblk0p3 or mmcblk0p5 if you have it in dev/block/ i have bad masege for you , a dont now how fix it, but good massage is then you didnt lost your imei in fact:
2)you used bad mmcblk0p3 or mmcblk0p5
3)you have propably mistake in proses
I hope it will help you.
and sorry for my english i hope then y understand me
Click to expand...
Click to collapse
my phone tried. but wont work. imei still null and camera is not found.
could you please attach mmcblk0p3.img?

kevin mitnick said:
my phone tried. but wont work. imei still null and camera is not found.
could you please attach mmcblk0p3.img?
Click to expand...
Click to collapse
sorry, you must use mmcblk from your phone with working imei you cant use mmcblk from another mobile
now you must sent phone to asus service center i do it now too (another prob. )
i think then theyaren very expensive

The two files are... then my phone null imei number is a motherboard problem?
kihope12 said:
So, you will need YOUR WORKING phone, root and terminal emulator
For backup open emulator and write:
su
(your phone will ask you for root acces)
dd if=dev/block/mmcblk0p3 of=removable/MicroSD/mmcblk0p3.img
dd if=dev/block/mmcblk0p5 of=removable/MicroSD/mmcblk0p5.img
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: ...of=removable/storage/mmcblk0p3.img or mmcblk0p5.img)
-now you have your imei restored in your sdcard
For restore:
you will need YOUR i say again YOUR backuped mmcblk, of you will use ANOTHER mmcblk0p3 you will get fake imei (some like 0004488xxxx) and your calling will never work.
so, open again terminal:
su
(your phone will ask you for root acces)
dd if=removable/MicroSD/mmcblk0p3.img of =dev/block/mmcblk0p3
dd if=removable/MicroSD/mmcblk0p5.img of =dev/block/mmcblk0p5
(MicroSD is name of my cd card, so if your sdcard name is storage you will use this command: dd if=removable/storage/mmcblk0p3.img or mmcblk0p5.img.....)
now restart phone , and open dialer y will see for some secund "actualising database of contacts"
then press *#06*
you will see your imei
this works !! i sayed beacuse after instal tanks alfa AOSP 5.0 i got "fake" imei, but thanks got i have backuped my imei so i restored them i its work
IF THIS INSTRUCTION WILL NOT WORK
1) you have propably motherboard broblem i have them too, and repair is very expensive ( more then 100 euros), so pls control your dev/block/ ind try found mmcblk0p3 or mmcblk0p5 if you have it in dev/block/ i have bad masege for you , you will need new motherboard, but good massage is then you didnt lost your imei in fact:
2)you used bad mmcblk0p3 or mmcblk0p5
3)you have propably mistake in proses
I hope it will help you.
and sorry for my english i hope then y understand me
Click to expand...
Click to collapse

akirarima said:
The two files are... then my phone null imei number is a motherboard problem?
Click to expand...
Click to collapse
if you dont have backup of your imei only service center can help you , an d it isn cheap...

If anyone is facing this problem then Download Firmware from Asus site. Make sure it's same sku and variant, flash or sideload or install it from sd card method. After installation, power off and charge ur phone for 5-6 hours. Boot into phone let it Complete the boot process.. Check ur IMEI it would be fix.
Regards
Sent from my ASUS_T00F using Tapatalk

no it does not help
herecomesmaggi said:
If anyone is facing this problem then Download Firmware from Asus site. Make sure it's same sku and variant, flash or sideload or install it from sd card method. After installation, power off and charge ur phone for 5-6 hours. Boot into phone let it Complete the boot process.. Check ur IMEI it would be fix.
Regards
Sent from my ASUS_T00F using Tapatalk
Click to expand...
Click to collapse
using this method is not fixing imei issue

Harshatxda said:
using this method is not fixing imei issue
Click to expand...
Click to collapse
Now there are other quick methods to rewrite imei. Please check guide thread. This thread is old. Use search instead.
Regards.

Hello maggi,
I lost IMEI of my two phones during twrp restore. One is at a local shop. It will be really good if you can guide me. Cz i am searching from 3 days but could not get any proper solution. Kindly suggest something

HUMBLE request
herecomesmaggi said:
Now there are other quick methods to rewrite imei. Please check guide thread. This thread is old. Use search instead.
Regards.
Click to expand...
Click to collapse
hello maggi,
i humbly request you to please provide me the lnk for faster IMEI flashing because i am searching for same since past two months but i am not getting the particular right link, please provide the exact link you are mentioning. it will be highly appreciated.

Harshatxda said:
hello maggi,
i humbly request you to please provide me the lnk for faster IMEI flashing because i am searching for same since past two months but i am not getting the particular right link, please provide the exact link you are mentioning. it will be highly appreciated.
Click to expand...
Click to collapse
Hello,
Follow this link.. This method works every time. And I must also warn u, the imei gets null whenever we downgrade from custom firmware, it's a bug.
https://forum.xda-developers.com/zenfone-5/help/rewrite-imei-null-00049-zenfone-5-t3389046

Yes, this is old you should folow link what herecomesmaggi post here.

[needed]persist backup of moto g5 plus which is not bricked yet

Hey guys as you know that we are able to get back volte successfully in Moto g5 plus by restoring PERSIST BACKUP.
So I think MAYBE persist partition got corrupted during flashing back stock.
But that backup is from MOTO G4 PLUS ,and some user facing a problem that whenever they reboot volte and imei again gone,and Everytime they have to restore efs (maybe because of that persist partition)so I am requesting you ,can someone please pull out persist backup of STOCK MOTO G5 PLUS WITH WORKING VOLTE (OR G5 PLUS WHICH IS NOT BRICKED YET).
I AM ATTACHING A TWRP FOR TAKING BACKUP WHICH IS MADE BY DEVELOPER.
SO YOU HAVE TO JUST GO IN TO BACKUP AND TAKE BACKUP OF PERSIST PARTITION
You can download twrp from below link.
https://potterroms.ddns.net/TWRP/twrp-3.2.1-1-potter_persist.img
I am not responsible for any brick/damage caused during you taking backu

Alright, so I got a Persist backup using the partition backup & restore app. I don't use VoLTE, but my IMEI hasn't become zero. I'm on Oreo. It's saved as a .img file. If this is helpful I'll upload the file. @akshu2697

thedr34m13 said:
Alright, so I got a Persist backup using the partition backup & restore app. I don't use VoLTE, but my IMEI hasn't become zero. I'm on Oreo. It's saved as a .img file. If this is helpful I'll upload the file. @akshu2697
Click to expand...
Click to collapse
I would definitely love to give it a go. I've had to restore my EFS every reboot since I tried installing Pixel Experience. I'd love to not have to remember anymore!
telegram @bcraw

thedr34m13 said:
Alright, so I got a Persist backup using the partition backup & restore app. I don't use VoLTE, but my IMEI hasn't become zero. I'm on Oreo. It's saved as a .img file. If this is helpful I'll upload the file. @akshu2697
Click to expand...
Click to collapse
Yes,it will be helpful,can you please upload that file.?

akshu2697 said:
Yes,it will be helpful,can you please upload that file.?
Click to expand...
Click to collapse
There you go.

thedr34m13 said:
There you go.
Click to expand...
Click to collapse
i will try ,
thank you so much brother

akshu2697 said:
i will try ,
thank you so much brother
Click to expand...
Click to collapse
No problem. Happy to help. If there's a way to get a better backup, tell me and I'll try.

thedr34m13 said:
No problem. Happy to help. If there's a way to get a better backup, tell me and I'll try.
Click to expand...
Click to collapse
sorry brother ,
i tried your backup,but this backup isn't working,
we need twrp persist backup as i have posted on the thread of volte.

akshu2697 said:
sorry brother ,
i tried your backup,but this backup isn't working,
we need twrp persist backup as i have posted on the thread of volte.
Click to expand...
Click to collapse
Not sure how to backup persist in twrp. Couldn't find instructions anywhere. If you find instructions, tell me and I'll upload the backup.

thedr34m13 said:
Not sure how to backup persist in twrp. Couldn't find instructions anywhere. If you find instructions, tell me and I'll upload the backup.
Click to expand...
Click to collapse
sure,i'll do

DELETED

With a lot of research, I was able to dump the persist partition using adb. My dump will do no good, as I have only been able to get persist back by OP's method. We need someone to dump who has not flashed an oreo rom. Ok, that being said, here is how.
Make sure your phone is rooted.
Make sure usb debugging is enabled.
Boot phone into recovery.
Open adb with phone connected to pc.
Code:
adb devices
You should see your device listed.
Code:
adb shell
You should get ~# and something like a backward arrow [6N. That was mine yours may differ. If you have ~$ instead of ~# you are not rooted properly. If you used magisk you may have to add the sudo module.
Code:
ls -al /dev/block/platform/soc/7824900.sdhci/by-name
This will give you a list of all partitions. Look through them and find one described as persist. Mine was this:
Code:
lrwxrwxrwx 1 root root 21 Jan 1970 persist -> /dev/block/mmcblk0p30
We are interested in the address /dev/block/mmcblk0p30.
We need to type in
Code:
dd if=/yourMountingPoint of=/yourDestination/partitionType
where /yourMounting point is the persist address, if like mine /dev/block/mmcblk0p30. /your destination will be where you want to save it, and partition type should be persist.img.
My command was this
Code:
dd if=/dev/block/mmcblk0p30 of=/external_sd/persist.img
This will give us a proper persist .img file.

Here it is.
I clean flash stock rom (potter_NPNS25.137-93-4) before getting the persist file, was on crDroid 7.1 before. I don't know if volte is working because we don't have it on my country, but I never flashed Oreo before and never lost imei or 4g/lte, so it should be fine.
Hope it helps us and use at your own risk.
https://drive.google.com/drive/folders/1bqdxheka3jKG76AXdEExIdhG81D3agLM

[email protected] said:
With a lot of research, I was able to dump the persist partition using adb. My dump will do no good, as I have only been able to get persist back by OP's method. We need someone to dump who has not flashed an oreo rom. Ok, that being said, here is how.
Make sure your phone is rooted.
Make sure usb debugging is enabled.
Boot phone into recovery.
Open adb with phone connected to pc.
Code:
adb devices
You should see your device listed.
Code:
adb shell
You should get ~# and something like a backward arrow [6N. That was mine yours may differ. If you have ~$ instead of ~# you are not rooted properly. If you used magisk you may have to add the sudo module.
Code:
ls -al /dev/block/platform/soc/7824900.sdhci/by-name
This will give you a list of all partitions. Look through them and find one described as persist. Mine was this:
Code:
lrwxrwxrwx 1 root root 21 Jan 1970 persist -> /dev/block/mmcblk0p30
We are interested in the address /dev/block/mmcblk0p30.
We need to type in
Code:
dd if=/yourMountingPoint of=/yourDestination/partitionType
where /yourMounting point is the persist address, if like mine /dev/block/mmcblk0p30. /your destination will be where you want to save it, and partition type should be persist.img.
My command was this
Code:
dd if=/dev/block/mmcblk0p30 of=/external_sd/persist.img
This will give us a proper persist .img file.
Click to expand...
Click to collapse
How to restore this file brother.?

N1vBruno said:
Here it is.
I clean flash stock rom (potter_NPNS25.137-93-4) before getting the persist file, was on crDroid 7.1 before. I don't know if volte is working because we don't have it on my country, but I never flashed Oreo before and never lost imei or 4g/lte, so it shoud be fine.
Hope it helps us and use at your own risk.
https://drive.google.com/drive/folders/1bqdxheka3jKG76AXdEExIdhG81D3agLM
Click to expand...
Click to collapse
Thank you sooo much brother.
Thank you for your support.

akshu2697 said:
How to restore this file brother.?
Click to expand...
Click to collapse
Aren't you the OP of this? I thought you needed a way to dump the original partitions, and I provided the method with step by step to do so. I've never coded for android systems, but I'm very familiar with close cousin linux, so I suppose I could investigate and learn. However I would think whomever developed the G4 plus method could use the above dump for our phone. I guess I assumed it was you who discovered this method. I'll dig into it further when I get some time, but getting the clean persist dump was what was asked to do.

I was able to write the above persist.img file by:
1. transfer persist.img to my external_sd
2. booting into twrp
3. opening terminal
4. entering
Code:
dd if=/external_sd/persist.img of=/dev/block/mmcblk0p30
However, this placed my EMEI to 0, and I had to restore my saved efs with moto g4 + persist to get signal back. But remember, I had problem with efs every time I reboot, so my case may not be typical of those of you whose moto g4+ persist was working fine for. I would be curious if N1vBruno's persist was at the same address as mine, namely
Code:
/dev/block/mmcblk0p30

Guys who have restored their VoLTE, does your IMEI match the one that came with your phone or has it changed to something else?
I'm just being curious as I thought using someone else's persist backup would restore his IMEI to your phone, or was it efs?
Please correct me if I'm wrong.

psychopac said:
Guys who have restored their VoLTE, does your IMEI match the one that came with your phone or has it changed to something else?
I'm just being curious as I thought using someone else's persist backup would restore his IMEI to your phone, or was it efs?
Please correct me if I'm wrong.
Click to expand...
Click to collapse
It is efs.

[email protected] said:
I would be curious if N1vBruno's persist was at the same address as mine, namely
Code:
/dev/block/mmcblk0p30
Click to expand...
Click to collapse
Yes,
Code:
persist -> /dev/block/mmcblk0p30
psychopac said:
I'm just being curious as I thought using someone else's persist backup would restore his IMEI to your phone, or was it efs?
Click to expand...
Click to collapse
I hope not lol

Restore Persist.img

After a failed update and some flashing my 4G Connection is gone (sim is locked, no baseband).
Howeever I made a backup of persist.img, modemst1.img and modemst2.img months ago.
Couldn't figure out so far how to restore the files, could someone tell me how to do?

Code:
dd if=/path/to/persist.img*modemst1.img of=/path/to/persist*modemst1-partition

Thanx for the reply, so do I need to do this step 3 Times for all 3 Files?
dd if=/path/to/persist.img*modemst1.img of=/path/to/persist*modemst1-partition
would that mean then for modemst2:
dd if=/path/to/persist.img*modemst2.img of=/path/to/persist*modemst2-partition ???
Do I need another command for the persist.img too?
Sorry for asking, but I don't wanna mess up even more with my persist file.

How did you backup these partitions?
A .img file is a bit to bit copy of a partition or a drive.
Are you sure you have a backup ending with .img? That's very important for the way you restore your backup!!
If you have .img backups then you will restore them like this:
First copy your .img files to /sdcard (internal storage).
persist.img:
Code:
dd if=/sdcard/persist.img of=/dev/block/by-name/persist
modemst1.img
Code:
dd if=/sdcard/modemst1.img of=/dev/block/by-name/modemst1
modemst2.img
Code:
dd if=/sdcard/modemst2.img of=/dev/block/by-name/modemst2
Restart your device!

Thanx for the reply,
My files are definately .img files, I backed them up months ago when starting with the Custom Rom Stuff, too be (hopefully) save.
Backed them up with this 3 commands
dd if=/dev/block/mmcblk0p2 of=/sdcard/modemst1.img
dd if=/dev/block/mmcblk0p3 of=/sdcard/modemst2.img
dd if=/dev/block/mmcblk0p4 of=/sdcard/persist.img
Was long ago so I couldn't remember exactly everything in Detail.
One Question left, setting the Commands while in Bootloader, TWRP or normal in system?

Dave-C said:
Thanx for the reply,
My files are definately .img files, I backed them up months ago when starting with the Custom Rom Stuff, too be (hopefully) save.
Backed them up with this 3 commands
dd if=/dev/block/mmcblk0p2 of=/sdcard/modemst1.img
dd if=/dev/block/mmcblk0p3 of=/sdcard/modemst2.img
dd if=/dev/block/mmcblk0p4 of=/sdcard/persist.img
Was long ago so I couldn't remember exactly everything in Detail.
One Question left, setting the Commands while in Bootloader, TWRP or normal in system?
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Are you sure you backed up mmcblk0p2/3/4?? Because these partitions are definitively not the persist or modemst ones! If you execute the commands above you will override your partitions with the wrong data!!

WoKoschekk said:
Are you sure you backed up mmcblk0p2/3/4?? Because these partitions are definitively not the persist or modemst ones! If you execute the commands above you will override your partitions with the wrong data!!
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Yes backed up with these 3 Commands, found them somewhere in this board.
Had these commands saved on my PC, so definately used them but probably good that I didn't used them yet.
Howeever, I also have a TWRP Backup with EFS and persist files (efs1.emmc.win, efs2emmc.win, persist.ext4.win).
How could I use them, simply via TWRP or better way to do this?

Can't Believe it....
After lots of flashing (Back to Stock etc.) I got my 3G/4G/Baseband Connections back!
Could you tell me the right Commands to backup the Persist/EFS/Modem Parts?
Anyways thank you so much for patiently helping me through this.
Thanx!

Use the TWRP backups. They're perfect!

Did the TWRP Backups now.
In case you know the commands for the img output, i'd still like to know.
I'd like an independent solution, since I had two TWRP Backups each with the EFS/Partition Backup, while 1 of them was somehow not working (error output).
So i'd like to be as secure as possible.

You need the dd command to create an image of each partition. The partitions on your device are numbered consecutively:
persist= /dev/block/mmcblk0p38
modemst1= /dev/block/mmcblk0p34
modemst2= /dev/block/mmcblk0p35
Open a terminal app and type:
for persist:
Code:
dd if=/dev/block/[B]mmcblk0p38[/B] of=/sdcard/persist.img
if= input file (partition)
of= output file (.img backup)

Hello, I am having the same problem but only with a backup with no IMEI. Does anyone know how to solve this? Or to merge these two backups to form one with IMEI and stable signal. The backups are encrypted I guess because nothing makes sense in them

juampapo546 said:
Hello, I am having the same problem but only with a backup with no IMEI. Does anyone know how to solve this? Or to merge these two backups to form one with IMEI and stable signal. The backups are encrypted I guess because nothing makes sense in them
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What kind of backup do you have?? What is a backup with no IMEI?

WoKoschekk said:
What kind of backup do you have?? What is a backup with no IMEI?
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TWRP backup of persist and efs
When I made the backup I had no IMEI but the wifi was working (I actuall made the backup after the signal drop issue)

juampapo546 said:
TWRP backup of persist and efs
When I made the backup I had no IMEI but the wifi was working (I actuall made the backup after the signal drop issue)
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If you don't have a backup of /persist with a IMEI then you won't be able to restore it.
https://forum.xda-developers.com/g5-plus/how-to/fix-persist-resolve-imei0-explanation-t3825147

WoKoschekk said:
If you don't have a backup of /persist with a IMEI then you won't be able to restore it.
https://forum.xda-developers.com/g5-plus/how-to/fix-persist-resolve-imei0-explanation-t3825147
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But isn't there a way to edit the backup or merge both backups I have?
(However when I erase modemst1 and 2 IMEI comes back but with the signal drop, a fix for that would also help me)

For the right understanding:
You have two different TWRP backups for /persist and /efs. The first one restores IMEI but signal is lost and the other one restores your signal without IMEI??

WoKoschekk said:
For the right understanding:
You have two different TWRP backups for /persist and /efs. The first one restores IMEI but signal is lost and the other one restores your signal without IMEI??
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Click to collapse
I am so sorry I answered this late, yes that is correct and I have been using my phone with WiFi only for months now

Try to merge them manually if you know the corresponding files. I've no idea how to figure them out...
TWRP won't merge your backups.

Does anyone give me an image of n9008v efs?

Hello,
I mistakenly erased the efs partition with dd command and no backup. Now, I think to try writing an efs partition backup of the same model to repair the missing imei, however I cannot find any existing download links. Thank you for uploading a backup of efs. :crying:

No as EFS contains details that in theory you could use/ clone .