Database Develop

Help Make Backup Folder EFS And ModemFS !!!

Please Help Me :crying:
Make Backup System Partition EFS and ModemFS and upload
Your device MUST be GT-I8190 ONLY! and NOT-I8190N GT or GT-I8190L.
Here's a dd Command To Enter In Terminal Emulator
Code:
[B][FONT=Courier New]dd if =/dev/block/mmcblk0p11 of=/sdcard/efs.img
dd if =/dev/block/mmcblk0p12 of=/sdcard/modemfs.img[/FONT][/B]
After Successful, Navigate to your internal sd card, download it and paste the link here.
I Want to Try to Fix Issues Baseband Version: XXXX
Thank You :angel:

faisalxp said:
Please Help Me :crying:
Make Backup System Partition EFS and ModemFS and upload
Your device MUST be GT-I8190 ONLY! and NOT-I8190N GT or GT-I8190L.
Here's a dd Command To Enter In Terminal Emulator
Code:
[B][FONT=Courier New]dd if =/dev/block/mmcblk0p11 of=/sdcard/efs.img
dd if =/dev/block/mmcblk0p12 of=/sdcard/modemfs.img[/FONT][/B]
After Successful, Navigate to your internal sd card, download it and paste the link here.
I Want to Try to Fix Issues Baseband Version: XXXX
Thank You :angel:
Click to expand...
Click to collapse
Double post, and none of them in the right section..
This has nothing to do with development, right?
Ok, no one is gonna give you a copy of their /EFS partition.
If you wonder why you can read here.
Sorry I couldn't be of more help.

We just need a legit fully working modemfs.img and flash it via dd command.
Code:
dd if=/sdcard/modemfs.bin of=/dev/block/mmcblk0p12

Benzonat0r said:
We just need a legit fully working modemfs.img and flash it via dd command.
Code:
dd if=/sdcard/modemfs.bin of=/dev/block/mmcblk0p12
Click to expand...
Click to collapse
Thanks Man... I thought Code That Can Only File Extract. IMG, I Think It Can not Extract File. BIN...I Want To Try It.
Btw What is Your opinion about Post Me The Last To Threads http://forum.xda-developers.com/showthread.php?t=2151288 :victory:

When you flash modem.bin file the image will be extracted to your /modemfs partition.

I have the same problem, I have flashed a working modemfs, but I it still does not work, I think that I also need an EFS file

evolution_x said:
I have the same problem, I have flashed a working modemfs, but I it still does not work, I think that I also need an EFS file
Click to expand...
Click to collapse
here backup from the modemfs>(mmcblk0p12) and efs>(mmcblk0p11)
http://dl.dropbox.com/u/2632841/mmcblk0p11.img
http://dl.dropbox.com/u/2632841/mmcblk0p12.img

thanks ! I have flashed the modem_fs from someone else, but I did not have the efs too, so it did not work. Now I don't have the phone, I sent my phone to a service company, they told me that there are 50% chances they can repair it and i takes 2-3 days. And in case they can repair it, it will cost me $40
I will save your files to try them in case they cannot repair it.

evolution_x said:
thanks ! I have flashed the modem_fs from someone else, but I did not have the efs too, so it did not work. Now I don't have the phone, I sent my phone to a service company, they told me that there are 50% chances they can repair it and i takes 2-3 days. And in case they can repair it, it will cost me $40
I will save your files to try them in case they cannot repair it.
Click to expand...
Click to collapse
just look on the website> http://forum.xda-developers.com/showthread.php?t=2165508
if you have the exactly the same problem you will help further the things that I've already posted here, for me it worked. I've also just thought it needed a new cell phone yesterday folded
my cell phone was dead until yesterday

First, sorry for my English.
Someone would have these files:
dd if =/dev/block/mmcblk0p11 of=/sdcard/efs.img
dd if =/dev/block/mmcblk0p12 of=/sdcard/modemfs.img
for samasung I8190L??
thank you very much

[Q] Help Make Backup Folder EFS And ModemFS !!!!!

Please Help Me :crying:
Make Backup System Partition EFS and ModemFS and upload
Your device MUST be GT-I8190 ONLY! and NOT-I8190N GT or GT-I8190L.
Here's a dd Command To Enter In Terminal Emulator
Code:
[B][FONT=Courier New]dd if =/dev/block/mmcblk0p11 of=/sdcard/efs.img
dd if =/dev/block/mmcblk0p12 of=/sdcard/modemfs.img[/FONT][/B]
After Successful, Navigate to your internal sd card, download it and paste the link here.
I Want to Try to Fix Issues Baseband Version: XXXX
Thank You :angel:

faisalxp said:
Please Help Me :crying:
Make Backup System Partition EFS and ModemFS and upload
Your device MUST be GT-I8190 ONLY! and NOT-I8190N GT or GT-I8190L.
Here's a dd Command To Enter In Terminal Emulator
Code:
[B][FONT=Courier New]dd if =/dev/block/mmcblk0p11 of=/sdcard/efs.img
dd if =/dev/block/mmcblk0p12 of=/sdcard/modemfs.img[/FONT][/B]
After Successful, Navigate to your internal sd card, download it and paste the link here.
I Want to Try to Fix Issues Baseband Version: XXXX
Thank You :angel:
Click to expand...
Click to collapse
here some links to the topic
http://forum.xda-developers.com/show....php?t=1518694
http://gsmforum7.blogspot.com.ar/201...epair.html?m=1
http://riauflasher1.blogspot.de/2012...ei-repair.html
http://forum.gsmhosting.com/vbb/f777...t-box-1348192/
http://www.riauflasher.com/f1036/sam...ox-173767.html
http://forum.xda-developers.com/showthread.php?t=859914
http://forum.xda-developers.com/show....php?t=1813559

[DEV][Q] How can i make a odin package of a modifidy stock rom?

Hi Guys,
I Have a rooted Galaxy s advanced. I have modified the stock rom (build I9070XXLQE) android 4.1.2. and now i'm trying to make a flashable odin pakage. after exporting the data and system block to a .img file. and putting them in a md5sum file. Odin get stuck on initializing. does someone know how how to make a working odin pakage for the i9070?

And why would you like to do that?
Isn't it easier to rather make a nand backup?
I do not respond to tech support via PM

dikkekip said:
Hi Guys,
I Have a rooted Galaxy s advanced. I have modified the stock rom (build I9070XXLQE) android 4.1.2. and now i'm trying to make a flashable odin pakage. after exporting the data and system block to a .img file. and putting them in a md5sum file. Odin get stuck on initializing. does someone know how how to make a working odin pakage for the i9070?
Click to expand...
Click to collapse
Do this in windows:
tar -H ustar -c nameofthefile.img > nameofthefile.tar
md5sum -t nameofthefile.tar >> nameofthefile.tar
rename nameofthefile.tar nameofthefile.tar.md5
You need in the same folder md5sum.exe and tar.exe
Sent from my GT-I9070

rolling out on 350 devices
Shaaan said:
And why would you like to do that?
Isn't it easier to rather make a nand backup?
I do not respond to tech support via PM
Click to expand...
Click to collapse
Naidroid backup is nice and works great. the problem is I have to roll out the modified rom on 350 i9070 android devices. so a odin package would be nice. Do I have to flash the data package with the odin files to copy everything ?

still no luck, I'm able to make a odin package now. the only problem is the device that I flash. has no system applications, problems like no keyboard and a crashing google services..
plz help ?
I'm using
adb shell
dd if=/dev/block/mmcblk0p3 of=/mnt/extSdCard/system.img bs=4096
dd if=/dev/block/mmcblk0p5 of=/mnt/extSdCard/userdata.img bs=4096
dd if=/dev/block/mmcblk0p3 of=/mnt/extSdCard/system.img bs=4096

dikkekip said:
still no luck, I'm able to make a odin package now. the only problem is the device that I flash. has no system applications, problems like no keyboard and a crashing google services..
plz help ?
I'm using
adb shell
dd if=/dev/block/mmcblk0p3 of=/mnt/extSdCard/system.img bs=4096
dd if=/dev/block/mmcblk0p5 of=/mnt/extSdCard/userdata.img bs=4096
dd if=/dev/block/mmcblk0p3 of=/mnt/extSdCard/system.img bs=4096
Click to expand...
Click to collapse
Are u missing /preload partition?
Sent from my GT-I9070 using xda app-developers app

I've solved the problem,
i have fixed the premission of the systemapps
I think the app does something like chmod 777
anyway after using the premmision fix app.
the new odin package worked good!
tnx for the feedback

FIx DRK/dm-verity, Factory CSC and Serial Number

Hello,
I have posted on various threads that i can fix DRK (Device root key), but after large demand in PM for the fix i have decided to make a tutorial, since i don't have much time to help everyone, this tutorial is only tested on SM-N910C, could work on other variants of Exynos, perhaps snapdragon but NOT TESTED!!!!
So how is DRK broken? Usually when you flash roms and stuff you should have EFS backup as its most important thing while rooting samsung phones, but some people just dont do that, other people use boxes like z3x for unlocking and they wipe EFS, while unlocking phones the process sometimes changes IMEI number and leaves device root key wiped. These modifications sometimes make it hard to revert back to stock and i personally had problems with device suddenly rebooting etc... with this tutorial we will try to mitigate these problems.
PLEASE DO NOT PROCEED WITHOUT SHELL/ADB KNOWLEDGE IF YOU MESS SOMETHING UP YOU WILL LOOSE IMEI AND WILL HAVE A BRICK! You have been warned and i am not to be held liable!
First we need to make backup of your EFS, we will use TAR and shell which is most reliable way (Partition Backup is good too), with adb shell:
1. su
2. cd /efs
3. tar czf efsbackup.tgz *
4. mv efsbackup.tgz /data/media/0/
Now go to your internal memory in My Computer and there should be file called efsbackup.tgz copy it somewhere safe on your PC. This is your efs backup!
Now we need to take two files which we will reuse latter, you can extract them from efsbackup.tgz but this is easyer:
1. su
2. cd /efs
3. cp nv_data.bin /data/media/0/
4. cp nv_data.bin.md5 /data/media/0/
Now go to your internal memory and copy nv_data.bin and nv_data.bin.m5 to your desktop, we will need these files later. These files contain your imei!
Now we need to reboot to TWRP and format EFS partition via terminal (We are doing this to force radio to recreate the files we lost while flashing and make system more stable, no reboots etc..)
TWRP --> Advanced --> Terminal type these (These will also fix "Failed to mount /efs (Invalid Argument)) Don't missspell, if you get error no mount in fstab, that is ok!
1. mke2fs /dev/block/mmcblk0p3
2. mount -w -t ext4 /dev/block/mmcblk0p3
3. reboot
Now the system will be booting, once done when you dial *#06# you will see generic IMEI and it's not yours, don't freakout this is how its supposed to be. Radio also recovered your default values in FactoryApp folder which is nice. Now reboot phone twice!
Let's restore nv_data and restore imei, assuming you still have those files in your internal memory do this with ADB:
1. su
2. cd /efs
2. rm -rf /efs/nv_data.bin
3. rm -rf /efs/nv_data.bin.md5
4. mv /data/media/0/nv_data.bin* /efs/
5. chmod 700 /efs/nv_data.bin*
6. chown radio:radio nv_data.bin*
7. reboot
After phone reboots your factory IMEI is back and registering to network properly, now we have achieved stable device no random reboots and clean remade factory EFS!!!
DRK REPAIR PART!
Now lets go to the part of fixing DRK Device Root Key and dm-verity error! I have attached file called prov_data.zip, extract the prov_data folder to your internal memory (This is not a flashabe zip) And run these commands with your ADB Shell:
1. su
2. cd /efs
3. mv /data/media/0/prov_data /efs/
4. chmod -R 755 /efs/prov_data
5. chown -R root:root /efs/prov_data
Device root key is now present in your device but not yet active/validated, in order to validate this, you need to flash your factory firmware with ODIN, go to factory recovery and wipe data/factory reset, and dm-verity error is now gone!
SERIAL NUMBER FIX PART
I have attached file called serial_no.zip (Not a flashable zip file), extract the file from it called serial_no open it with notepad or whatever text editor you use and replace XXXXXXXXXXX with your own serial number that is written behind your phone. Now copy serial_no file to your internal memory again and with adb we do this:
1. su
2. cd /efs
3. mv /data/media/0/serial_no /efs/FactoryApp/
4. chmod 700 /efs/FactoryApp/serial_no
Reboot and done, you have your serial number back *#06#!
FACTORY CSC FIX PART
Download the file called csc_repair.zip, inside you will see the file called mps_code.dat, open it with notepad or whatever text editor you use, type in your factory CSC instead of XXX in my file and save. If you cant find your factory CSC, go to Kies or SmartSwitch, initialize firmware, type in your serial number and device model it will show your factory CSC for reinstall, this is your CSC. Now copy mps_code.dat file to your internal memory and again we run ADB Shell:
1. su
2. cd /efs
3. mv /data/media/0/mps_code.dat /efs/imei/
4. chown root:root /efs/imei/mps_code.dat
5. chmod 755 /efs/imei/mps_code.dat
This is it, if you can follow these steps you can get clean factory remade EFS partition, with your own IMEI, Serial Number, CSC Code, DRK/dm-verity fixed. Flashing factory ODIN firmware after this will make your phone work as it should!

i have this issue on the n910t... I have full access and a working phone but it lags a lot... youtube videos stutter and when typing some words they keyboard, well all keyboards stutter too... this began to happen when my phone started showing me this message, you see the phone was unlocked by certfile with octoplus or z3x... then it lost signal but when i tried to wipe efs, the phone recovered its own imei and serial... So i unlocked it normally with z3x but had to downgrade the modem from EPE3 to DOK2 to unlock it.... then i restored the complete firmware to the latest version of android 6.0.1 and it showed me the DRK problem..
I'm going to try this tutorial and see it this stops all the stuttering every 8 seconds,..

SeerePetrova said:
i have this issue on the n910t... I have full access and a working phone but it lags a lot... youtube videos stutter and when typing some words they keyboard, well all keyboards stutter too... this began to happen when my phone started showing me this message, you see the phone was unlocked by certfile with octoplus or z3x... then it lost signal but when i tried to wipe efs, the phone recovered its own imei and serial... So i unlocked it normally with z3x but had to downgrade the modem from EPE3 to DOK2 to unlock it.... then i restored the complete firmware to the latest version of android 6.0.1 and it showed me the DRK problem..
I'm going to try this tutorial and see it this stops all the stuttering every 8 seconds,..
Click to expand...
Click to collapse
I am not sure if it will work on N910T variant, but you can try it. DRK error happened on your note because z3x wipes EFS and then writes new nv_data.bin, but by wiping it destroys your prov_data/dev_root folder which contains DRK. If you think your EFS partition created your problem, you can start from the start and format EFS to make it factory and then proceed.

Hey there!
I recently bought a used Note 4 910C. I was told by the shopkeeper that it has never been tempered with. But OTA update fails bcuz of DRK error. I guess someone did try something with it previously. I manged to update Marshmallow via ODIN.
yesterday I rooted it and followed your DRK REPAIR Part. flashed via ODIN for validation but the error still exists. I did not do the whole method from the beginning ( I backed up EFS and nv_bin). Plz tell me what did I do wrong.
Another thing that may be of some importance. The serial no was different form phone's back in just one letter in the middle. Instead of '5' it was showing 'S'. I wonder it can not be by mistake. there must be some messing up previously.
Anyway I followed ur method of SERIAL NO repair and managed to repair the serial no. The IMEI was already a match.
Plz help me what should I do for DRK repair.
Regards.

Usually when you restore prov_data folder properly, you need to go to twrp, format system, data and cache. Then with odin flash stock firmware with your own csc code (do csc repair if its not a match). After that phone should boot to stock recovery, then do format data/factory reset from stock recovery. It should say something like "verifiyng dm-verity" when you go to reboot. After system boots when you go to recovery again it wont show drk error anymore. Tested 100% on 910c variant.

magix01 said:
Usually when you restore prov_data folder properly, you need to go to twrp, format system, data and cache. Then with odin flash stock firmware with your own csc code (do csc repair if its not a match). After that phone should boot to stock recovery, then do format data/factory reset from stock recovery. It should say something like "verifiyng dm-verity" when you go to reboot. After system boots when you go to recovery again it wont show drk error anymore. Tested 100% on 910c variant.
Click to expand...
Click to collapse
So I'm doing the drk fix on my smg925p device and when doing the drk commands the prov_data folder doesn't move to the efs folder it stays in my internal memory and i did the restore and reset and i still get the drk error clearly a command or something is wrong

Use root explorer to move the folder then

magix01 said:
This is it, if you can follow these steps you can get clean factory remade EFS partition, with your own IMEI, Serial Number, CSC Code, DRK/dm-verity fixed. Flashing factory ODIN firmware after this will make your phone work as it should!
Click to expand...
Click to collapse
1. su
2. cd /efs
3. tar czf efsbackup.tgz *
4. mv efsbackup.tgz /data/media/0/
Testing........I was able to make a backup of efsbackup.tgz on a phone without any dm-verity damage. So the command works.
But on the phone that needs efs repair, when I run the command tar czf efsbackup.tgz * with Terminal Emulator
I get the error message tar: efsbackup.tgz: file is the archive; skipping
Any thoughts anyone?

Try with busybox installed and system root not systemless.

magix01 said:
Try with busybox installed and system root not systemless.
Click to expand...
Click to collapse
Thanks, that worked. The phone I'm working on is a SM-N910V and it does not have the files nv_data.bin or nv_data.bin.md5 inside the efs folder, any suggestions?
Can I send you my efs folder for repair?
I have two SM-N910V one is Okay. could I pull some files from the good one to help fix the damaged one?

+1 N910F have dont the nv_data's...my efs it's okay, i only wanna look

magix01 said:
Try with busybox installed and system root not systemless.
Click to expand...
Click to collapse
SM-N910V I decided to give this a try.
I used Root Browser to change the name of every file and folder inside the efs folder. I just added a 1 to the end of the names so I could revert back if needed.
I rebooted the phone, went back to check the efs folder and it had regenerated everything I needed to keep. And it didn't load the junk files. The phone runs like it's using AdAway on steroids.
What do you think about that. Why did it work.
http://forum.xda-developers.com/note-4-verizon/general/spyware-fix-fixed-lag-wi-fi-problems-t3433839

HI im having trouble doing the third command in DRK repair . it say that it cant be moved becuase the directory is not empty what should i do ?

I can confirm that it doesn't work with the Samsung Galaxy S6 Edge Sprint Model (SM-G925P)

bro i use your method to recover sn number and i get my serial number back but when i reboot its gone null again what can i do bro

Thank you! I use this method to restore the serial number and fix DRK on the phone Samsung SM-A310F Galaxy A3 (2016)

This method is full working on sm-n910g but still dm verification failed messages
Efs restore and phone working well
So thank u magix01

is it possible to use your files on my note edge n915fy ??

i have done everything but i can get back original emei. DRK everthing seem ok.serial number said no when i dial *#06# but i can see it on settings -status...
my phone can no register nto network
..please help.

doctor-cool said:
Thanks, that worked. The phone I'm working on is a SM-N910V and it does not have the files nv_data.bin or nv_data.bin.md5 inside the efs folder, any suggestions?
Can I send you my efs folder for repair?
I have two SM-N910V one is Okay. could I pull some files from the good one to help fix the damaged one?
Click to expand...
Click to collapse
Did you get any fix? I'm also missing these files in my N910T.

NEED HELP TO RESTORE '' IMEI '' AND fix unknown baseband.........

LEECO LE2 X526
Lost both sim function and wifi when using ROM ressuruction remix... { Thing is battey drained out completely and when i recharged it back , no sim card were detected...only wifi was working } .
Then i installed stock rom but same issue, moreover in stock rom wifi is also not working { but only wifi works when i install nougat based rom } ... I tried lots of tips and tricks found over forum but no help.
I tried restoring qcn file by editing it with my own imei but qpst says error.
Erasing modemst1/2 file aslo didnt help.
So if any body got any idea then please do share..

9xmb said:
LEECO LE2 X526
Lost both sim function and wifi when using ROM ressuruction remix... { Thing is battey drained out completely and when i recharged it back , no sim card were detected...only wifi was working } .
Then i installed stock rom but same issue, moreover in stock rom wifi is also not working { but only wifi works when i install nougat based rom } ... I tried lots of tips and tricks found over forum but no help.
I tried restoring qcn file by editing it with my own imei but qpst says error.
Erasing modemst1/2 file aslo didnt help.
So if any body got any idea then please do share..
Click to expand...
Click to collapse
try flash stock rom eui for ur x526 5.8.19 or 5.9.21

haardx said:
try flash stock rom eui for ur x526 5.8.19 or 5.9.21
Click to expand...
Click to collapse
i installed both and and also other version eui but didnt help... wifi and dual sim are gone
..i get wifi only when using nougat rom ..so i am now using only wifi...

This works
Install the Rom S2_X520-CN-FN-IEXCNFN5902303111S-5.9.023S
... I have the x527 version ... it works with this version .... then flash a rom you like
https://devs-lab.com/download-letv-o...stock-rom.html (Le 2 (Qualcomm) Stock ROM)

i did that too...
i also tried restoring imei qcn file...but it says model mismatch....(i have x526 ver and i used same ver qcn)
Also i noticed my phone shows as x520 while in twrp recovery mode in pc..... (but phone info and pc details reads x526 while device is 0N )
Are all device shown x520 in twrp recovery ??.....and yes i use latest ver twrp.

not solved
Da-Fied said:
This works
Install the Rom S2_X520-CN-FN-IEXCNFN5902303111S-5.9.023S
... I have the x527 version ... it works with this version .... then flash a rom you like
https://devs-lab.com/download-letv-o...stock-rom.html (Le 2 (Qualcomm) Stock ROM)
Click to expand...
Click to collapse
i did that too...
i also tried restoring imei qcn file...but it says model mismatch....(i have x526 ver and i used same ver qcn)
Also i noticed my phone shows as x520 while in twrp recovery mode in pc..... (but phone info and pc details reads x526 while device is 0N )
Are all device shown x520 in twrp recovery ??.....and yes i use latest ver twrp.

Look at this:
http://forum.xda-developers.com/le-2/help/help-pro-bricked-x527-t3700958
I had the same issue. Good luck!
---------- Post added at 08:38 AM ---------- Previous post was at 08:27 AM ----------
Boot into recovery.
In twrp goto advanced >> terminal
Type the following
dd if=/dev/zero of=/dev/block/mmcblk0p14
Press enter
Type
dd if=/dev/zero of=/dev/block/mmcblk0p13
Press enter
Reboot phone.
Now your sim cards must be detected...

quasimodo88 said:
Look at this:
http://forum.xda-developers.com/le-2/help/help-pro-bricked-x527-t3700958
I had the same issue. Good luck!
---------- Post added at 08:38 AM ---------- Previous post was at 08:27 AM ----------
Boot into recovery.
In twrp goto advanced >> terminal
Type the following
dd if=/dev/zero of=/dev/block/mmcblk0p14
Press enter
Type
dd if=/dev/zero of=/dev/block/mmcblk0p13
Press enter
Reboot phone.
Now your sim cards must be detected...
Click to expand...
Click to collapse
Thanks but it doesnt help.... i already did that ....i literally tried every thing i found on the forums threads...

9xmb said:
Thanks but it doesnt help.... i already did that ....i literally tried every thing i found on the forums threads...
Click to expand...
Click to collapse
Hmm okay, for me it works. Try to make a clean install of the stock 19s rom and reboot your phone. If you have the same issue, then try again my instruction. Normally it should work.

quasimodo88 said:
Hmm okay, for me it works. Try to make a clean install of the stock 19s rom and reboot your phone. If you have the same issue, then try again my instruction. Normally it should work.
Click to expand...
Click to collapse
and remove and insert the sim

haardx said:
and remove and insert the sim
Click to expand...
Click to collapse
Nothing works...heard some where about UMT tool .... will try to write imei through it,,,,

Try to flash another baseband Or kernel for le 2.

9xmb said:
LEECO LE2 X526
Lost both sim function and wifi when using ROM ressuruction remix... { Thing is battey drained out completely and when i recharged it back , no sim card were detected...only wifi was working } .
Then i installed stock rom but same issue, moreover in stock rom wifi is also not working { but only wifi works when i install nougat based rom } ... I tried lots of tips and tricks found over forum but no help.
I tried restoring qcn file by editing it with my own imei but qpst says error.
Erasing modemst1/2 file aslo didnt help.
So if any body got any idea then please do share..
Click to expand...
Click to collapse
Follows these steps in this exact order, dont skip any even if you tried something similar. Especially in step 19. you must erase the blocks in the stated order.
1. root your rom
2. enable usb debugging
3. install minimal adb on your computer, goto the folder you installed it in, hold shift then right click, select open command prompt here, connect phone to pc.
4. in command window, enter the following ( each line followed by pressing enter)
5. adb shell
6. su
7. grant su request on phone screen
7b. command prompt should look similar to "[email protected]_s2_na:/ #" without the quotes depending on the version of your phone.
8. on command prompt type
9. ls -al /dev/block/platform/soc.0/7824900.sdhci/by-name/
10. this lists out all your phones partitions ( not really necessary if you are using an le 2 but it's a good practice to confirm for the following steps)
11. confirm the following entries appear in the list
11a. fsg -> /dev/block/mmcblk0p18
11b. modemst1 -> /dev/block/mmcblk0p13
11c. modemst2 -> /dev/block/mmcblk0p14
11d. these three entries are where the phone stores the imei, wifi mac address, and Bluetooth address.
12a. if they don't then... if you are technical enough you cant edit this guide to suit your needs else STOP!!!
12b. if they do then you are all good. continue
13. on the command prompt enter
13a. dd if=/dev/block/mmcblk0p18 of=/sdcard/fsg.bin
13b. dd if=/dev/block/mmcblk0p13 of=/sdcard/modemst1.bin
13c. dd if=/dev/block/mmcblk0p14 of=/sdcard/modemst2.bin
14. this will backup the partitions and create 3 files on your sdcard 'fsg.bin' 'modemst1.bin' and 'modemst2.bin'
15. copy these to a safe place on your computer
16. this part restores your backup, on the command prompt enter
16a. dd if=/sdcard/fsg.bin of=/dev/block/mmcblk0p18
16b. dd if=/sdcard/modemst1.bin of=/dev/block/mmcblk0p13
16c. dd if=/sdcard/modemst2.bin of=/dev/block/mmcblk0p14
16d. reboot
17. after your phone reboots repeat steps 5 & 6
18. cross fingers
19. the next step will zero out (erase) the partitions so your phone can hopefully recreate them with the correct data
19. in the command prompt enter the following in this exact order
19a. dd if=/dev/zero of=/dev/block/mmcblk0p18
19b. dd if=/dev/zero of=/dev/block/mmcblk0p14
19c. dd if=/dev/zero of=/dev/block/mmcblk0p13
20. without rebooting your phone try to check the imei by dialing *#06#
If this doesn't work you can try qcn restore with qpst, but note that in order to restore a qcn backup you MUST first zero out fsg, modemst1/2
Side note, you might be able to make your wifi work in stock by flashing overload2.3 miui kernel, I never figured out why this is.
Also with a root explorer check /persist folder for the following files in the pics

i did as you said..... i checked in root explorer for the following files but i could only find the files from pic 1 .......
i tried restoring .qcn file but it says received invalid command from phone..
yes i wiped .fsg first and connected phone in 901D port ...

Le2 x526 baseband unknown
brother is your phone repaired, i have same issue, please help me