Question on Unrooting - Sprint Samsung Galaxy S7 Edge Questions & Answers

Hi Folks
I am currently using the G935U phone in India. I need to enable VOLTE for JIO (telecom carrier in India) which is currently not support by the Snapdragon version. However there are ways to achieve this . One such way is to write using flashfire and customized CSC File. But this requires the phone to be rooted. (https://forum.xda-developers.com/showpost.php?p=72532123&postcount=18)
Now my question is as follows:
Lets say i root the phone and follow the steps mentioned in the thread and flashfire the CSC file as required. Now if i unroot the phone by flashing the stock AP file back using ODIN, then technically i have unrooted the phone and since i did not flash the CSC file, the changes made should continue to be there.
Would the changes and files written to the system/csc areas continue to be there after i flash it with the stock AP file ?

deltacharlie said:
Hi Folks
Lets say i root the phone and follow the steps mentioned in the thread and flashfire the CSC file as required. Now if i unroot the phone by flashing the stock AP file back using ODIN, then technically i have unrooted the phone and since i did not flash the CSC file, the changes made should continue to be there.
Would the changes and files written to the system/csc areas continue to be there after i flash it with the stock AP file ?
Click to expand...
Click to collapse
I've unrooted via the bat file located in the root zip itself. Flashed back from eng boot to normal boot file. but i still feel the lag. May be it's a good idea to flash AP too but i have to setup my apps etc (technically, flashing AP should not wipe my phone but can't take chances) How did your flashnig go? CSC preserved?

Related

Tutorial: How to flash International rom on Galaxy S3, GT-I9300_CHN_CHN (From CHINA)

If you are a proud owner of a Samsung Galaxy S3 (GT-I9300), but unfortunatly, your S3 was brought from china, maybe you have the versión GT-i9300_CHN_CHN.
This Version of Galaxy S3, has the bootloader blocked, then we can not flash international firmware in this model, because odin fail in modem.
In my first steps, i found a post with a firmware mixed a French files, and China Files in one Rom (thanks to XDA). But with ICS, ( 4.1.1). So because i like put he newest, i search around the net, and XDA, and i found some ways to do that.
This is the tutorial to do that.
STEP 1.
You Need to confirm, if really you have the Gt-i9300_CHN_CHN.
Put your Mobile on Download mode ( it show in chinese) and press Vol+, in the same way you do when you flash with Odin. (to enter Download Mode press: Vol-, Power; Home)
In the Screen Must appear PRODUCT NAME: GT-i9300_CHN_CHN, It´s means, you have a Chinese Version ( its International, But Chinese).
Another way its Pressing in your Phone *#1234# and its show your versión.
The latest version on china is:
GT-I9300 Galaxy S III
PDA: I9300ZCEMD2
CSC: I9300CHNEMD2
MODEM: I9300ZCELL1
Added: 2013-04-14
The Official Link from samfirmware:
http://www.hotfile.com/dl/204467117/3bfe5c1/I9300ZCEMD2_I9300CHNEMD2_CHN.zip.html
http://www.hotfile.com/dl/204467117/3bfe5c1/I9300ZCEMD2_I9300CHNEMD2_CHN.zip.html
STEP 2.
Download the Latest CHINA FIRMWARE. and the firmware you prefer, I use the Spain (PHE)
The Official Link from Samfirmware:
Model: GT-I9300
Country: Spain
Version: Android 4.1.2
Changelist: 1287119
Build date: Thu, 27 Jun 2013 15:44:00 +0000
Product Code: PHE
PDA: I9300XXEMF6
CSC: I9300PHEEMF1
MODEM: I9300XXEMF6
Here is the Official Link from samfirmware:
http://www.hotfile.com/dl/233642717/ff467e6/I9300XXEMF6_I9300PHEEMF1_PHE.zip.html
STEP 3.
Once you have both firmwares ( china and your preferred firmware), you need to change the extensión of both files, you need to unrar your files, then you have something like this:
CHINESE FIRMWARE:
KIES_HOME_I9300ZCEMD2_I9300CHNEMD2_1133994_REV00_user_low_ship.tar.md5
SPAIN FIRMWARE:
I9300XXEMF6_I9300PHEEMF1_I9300XXEMF6_HOME.tar.md5
You need to delete the extensión .md5, it must have only .tar, just rename in Windows.
Then the both files we use are:
KIES_HOME_I9300ZCEMD2_I9300CHNEMD2_1133994_REV00_user_low_ship.tar
I9300XXEMF6_I9300PHEEMF1_I9300XXEMF6_HOME.tar
STEP 4.
Once you renamed both files, you need to unpacking.
To unpack your firmwares, you can use WINRAR, or another software who can work with tar files.
Or you can Use TOTAL COMMANDER, ( i prefer Total Commander)
https://mega.co.nz/#!WcUW3AbK!Y7yAFEL2nd_rApcW-DEliBCIokFG1em--FH28t5ifWY
STEP 5.
Once you have both firmwares unpacked, ( in diferent folders), you have to use some files from CHINA, and some files from Spain
In Both Folders we have these files:
Boot.img
Cache.img
Hidden.img
Modem.bin
Recovery.img
Sboot.bin
System.img
Tz.img
STEP 6.
From the China Firmware, I used these Files:
Sboot.bin
Tz.img
Modem.bin
From the Spain firmware, I used the rest of the files:
Boot.img
Cache.img
Hidden.img
Recovery.img (recovery can be omitted if you have a custom recovery and you don't want lose it)
System.img
We need put these files together,, if you have some software to pack files in Tar, Use it! ( with winrar you can only unpack, but you cannot repack)
In this step, i still Using Total Commander.
With total commander, you must put your files in the same folder, and click on PACK FILES.
The file resultant, is a tar file, ( you can rename the file as you want)
This file is flasheable by ODin, put in PDA just like another firmware. And flash it as the same way you know.
Remember: this is important: before you flash, you must do Factory reset, and format cache partition, in order to have a clean installation. ( many people dont do that, and after time, the mobile seems to have bugs, it is because need factory reset, and cache partition, so, DO IT!)
Once ODIN finish to flash, you must have a Galaxy S3 CHN, with Nordic Countries firmware, but with modem, and bootloader chinese.
There is Another Way to pack and unpack tar files, if you use Linux, search XDA for this, or you can use CYGWIN, wich is a Linux Console for Windows. ( search in XDA too)
With CYGWIN you can unpack and pack in tar and generate md5 checksum firmwares.
You Can change your firmware in other way too.
First you need to flash the CHINA firmware as it comes, without modifications.
Next you only need to open the Nordic Countries Firmware, with total commander, and delete, modem.bin, tz.img, sboot.bin, the rest of files still in rom. You can delete recovery too, if you have a custom one. (don’t forget backup the original file)
Then, Flash this rom without modem, via ODIN, in PDA, y that is all!.
Next you need to do Factory reset and Format Cache partition.
Note: CAUTION!, Backup your EFS folder, just in case.
Note 2: i don't test newest firmware, because the newest firmware from spain or Nordic Countries, are incompatible with the Structure and partitions in these firmwares, so, if you want use the newest firmware, try the new CHN firmware, and some firmware near to the build date of the China firmware.
If you mix incompatible firmwares, you will lost your IME.. DON'T BE AFRAID, YOU DON'T LOSS IT, IT IS JUST THERE, IN A DIFFERENT PARTITION.
In that case, return your old CHN firmware, and you will recover your IMEI, ( I do it twice)
I EDIT THIS POST TO CHANGE THE LINKS, SO ALL THE LINKS ARE THE GOOD ONE USING SPAIN XXEMF6.
THIS WORKS FINE, TESTED BY ME,
Enjoy
Please: If you like this post, click THANKS :good:, Post a Reply, and share...
Nice job Cpaez. Now if only someone would figure this out (or if they have, share it with the rest of us) for the i9308, then all us China users would be set. i9308 is still SOL unfortunately.
is there any way to unpack the system.img , edit the files and pack it back into the .md5 file and then flash it with odin?
Spixe1 said:
Nice job Cpaez. Now if only someone would figure this out (or if they have, share it with the rest of us) for the i9308, then all us China users would be set. i9308 is still SOL unfortunately.
Click to expand...
Click to collapse
Maybe I can make a firmware for the users of i9308, Just let me know wich is your firmware, or compatible ( China), and what you prefer to have,(international or european), and i will make one for you. I cannot be able to test it, but, you can test it, and share your experience, you always can return to original firmware.
Does this also work for the GT-i9300_CHN_CU firmware?
popcorn1122 said:
is there any way to unpack the system.img , edit the files and pack it back into the .md5 file and then flash it with odin?
Click to expand...
Click to collapse
Check this thread:
http://forum.xda-developers.com/showthread.php?t=1081239
And This One:
http://forum.xda-developers.com/showthread.php?t=2294909
First you need to unpack the rom, Modify the system.img, and repack the rom again, you can flash it without .md5 cheksum, just flash the tar file.
If you want the md5 checksum, you need to type this in Linux console:
$md5sum -t filename.tar >> filename.tar
$mv filename.tar filename.md5
If you dont have Linux, you can use CYGWIN, this is a Linux console for Windows.
Nilist said:
Does this also work for the GT-i9300_CHN_CU firmware?
Click to expand...
Click to collapse
probably, you can test it, i am uploading the file in Mega, i will share the file, you can test it, if doesnt work, you must flash again, your original rom.
Hi, i am new in this forum, so i hope i can use it in the right way.
First of all, thank you very much for this tuturial... very clear.
The model of my cellphone is GT-9300_CHN_CU, its safe to use this method? Before i flash any rom on my cellphone using Odine i want to backup efs folder and the current rom, so my question is, can i root my device with CWM using odin, this procedure wil not mess the bootloader?
Best regards
Odin with multiple files
Hi, i downloaded the official rom to my device (FACTORY_I9300ZNEMD2_I9300CHUEMD2_CHU), but i this file contains 4 files... BOOTLOADER_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CODE_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CSC_CHU_I9300CHUEMD2_1133994_REV00_user_low_ship.tar and MODEM_I9300ZNEMA1_862886_REV00_user_low_ship.tar.
how to flash it using odin?
Thanks
FMBLima said:
Hi, i am new in this forum, so i hope i can use it in the right way.
First of all, thank you very much for this tuturial... very clear.
The model of my cellphone is GT-9300_CHN_CU, its safe to use this method? Before i flash any rom on my cellphone using Odine i want to backup efs folder and the current rom, so my question is, can i root my device with CWM using odin, this procedure wil not mess the bootloader?
Best regards
Click to expand...
Click to collapse
Its, safe, you can do this with any firmware, many people change the modem.bin, to increase performance in signal, wifi, etc ( in our case we cannot do that).
There are many apks to backup your EFS, The most simple is with "Galaxy S unlock"need to be root in any case.
I root with Philz Touch and it works fine. You need to flash philz_touch_5.06.1-i9300.tar.md5 via Odin ( in PDA), restart in recovery mode, select install zip from sd card, and select Root_SuperSU.0.98-Busybox.1.20.2-signed restart your phone, and backup EFS folder.
Caution!, Root, and the rom you make with this tutorial, avoid your guarantee, because it is a custom rom, and increase the flash counter ( Red Exclamation Sign in the upper left of the screen during the boot)
You CANNOT, use triangle away, to clear the flash counter, because the bootloader is blocked.
Good Luck
FMBLima said:
Hi, i downloaded the official rom to my device (FACTORY_I9300ZNEMD2_I9300CHUEMD2_CHU), but i this file contains 4 files... BOOTLOADER_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CODE_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CSC_CHU_I9300CHUEMD2_1133994_REV00_user_low_ship.tar and MODEM_I9300ZNEMA1_862886_REV00_user_low_ship.tar.
how to flash it using odin?
Thanks
Click to expand...
Click to collapse
where do download this firmware?
Open all of these files, i think they are in parts, so, you can extrac all of them and use only the files you need.
Nilist said:
Does this also work for the GT-i9300_CHN_CU firmware?
Click to expand...
Click to collapse
I can't test in your model, you can try, or do your own custom firmware.
read below the next post.
if you do it is under your own risk, be careful
Cpaez said:
If you are a proud owner of a Samsung Galaxy S3 (GT-I9300), but unfortunatly, your S3 was brought from china, maybe you have the versión GT-i9300_CHN_CHN.
This Version of Galaxy S3, has the bootloader blocked, then we can not flash international firmware in this model, because odin fail in modem.
In my first steps, i found a post with a firmware mixed a French files, and China Files in one Rom (thanks to XDA). But with ICS, ( 4.1.1). So because i like put he newest, i search around the net, and XDA, and i found some ways to do that.
This is the tutorial to do that.
STEP 1.
You Need to confirm, if really you have the Gt-i9300_CHN_CHN.
Put your Mobile on Download mode ( it show in chinese) and press Vol+, in the same way you do when you flash with Odin. (to enter Download Mode press: Vol-, Power; Home)
In the Screen Must appear PRODUCT NAME: GT-i9300_CHN_CHN, It´s means, you have a Chinese Version ( its International, But Chinese).
Another way its Pressing in your Phone *#1234# and its show your versión.
The latest version on china is:
GT-I9300 Galaxy S III
PDA: I9300ZCEMD2
CSC: I9300CHNEMD2
MODEM: I9300ZCELL1
Added: 2013-04-14
The Official Link from samfirmware:
http://www.hotfile.com/dl/204467117/3bfe5c1/I9300ZCEMD2_I9300CHNEMD2_CHN.zip.html
http://www.hotfile.com/dl/204467117/3bfe5c1/I9300ZCEMD2_I9300CHNEMD2_CHN.zip.html
STEP 2.
Download the Latest CHINA FIRMWARE. and the firmware you prefer, I use the Spain (PHE) firmware or the Nordic Countries (NEE)SPAIN, In this Tutorial i used NEE.
GT-I9300 Galaxy S III
PDA: I9300XXEMG4
CSC: I9300PHEEMG2
MODEM: I9300XXEMG4
Added: 2013-08-05
The Official Link from Samfirmware:
http://www.hotfile.com/dl/238007598/676d37e/I9300XXEMG4_I9300PHEEMG2_PHE.zip.html
NORDIC COUNTRIES
GT-I9300 Galaxy S III
PDA: I9300XXEMG4
CSC: I9300NEEEMG2
MODEM: I9300XXEMG4
Added: 2013-08-08
Here is the Official Link from samfirmware:
http://www.hotfile.com/dl/238606055/6249bfd/I9300XXEMG4_I9300NEEEMG2_NEE.zip.html
STEP 3.
Once you have both firmwares ( china and your preferred firmware), you need to change the extensión of both files, you need to unrar your files, then you have something like this:
CHINESE FIRMWARE:
KIES_HOME_I9300ZCEMD2_I9300CHNEMD2_1133994_REV00_user_low_ship.tar.md5
NORDIC COUNTRIES FIRMWARE:
I9300XXEMG4_I9300NEEEMG2_I9300XXEMG4_HOME.tar.md5
You need to delete the extensión .md5, it must have only .tar, just rename in Windows.
Then the both files we use are:
KIES_HOME_I9300ZCEMD2_I9300CHNEMD2_1133994_REV00_user_low_ship.tar
I9300XXEMG4_I9300NEEEMG2_I9300XXEMG4_HOME.tar
STEP 4.
Once you renamed both files, you need to unpacking.
To unpack your firmwares, you can use WINRAR, or another software who can work with tar files.
Or you can Use TOTAL COMMANDER, ( i prefer Total Commander)
https://mega.co.nz/#!WcUW3AbK!Y7yAFEL2nd_rApcW-DEliBCIokFG1em--FH28t5ifWY
STEP 5.
Once you have both firmwares unpacked, ( in diferent folders), you have to use some files from CHINA, and some files from Nordic Countries.
In Both Folders we have these files:
Boot.img
Cache.img
Hidden.img
Modem.bin
Recovery.img
Sboot.bin
System.img
Tz.img
STEP 6.
From the China Firmware, I used these Files:
Sboot.bin
Tz.img
Modem.bin
From the Nordic Countries firmware, I used the rest of the files:
Boot.img
Cache.img
Hidden.img
Recovery.img (recovery can be omitted if you have a custom recovery and you don't want lose it)
System.img
We need put these files together,, if you have some software to pack files in Tar, Use it! ( with winrar you can only unpack, but you cannot repack)
In this step, i still Using Total Commander.
With total commander, you must put your files in the same folder, and click on PACK FILES.
The file resultant, is a tar file, ( you can rename the file as you want)
This file is flasheable by ODin, put in PDA just like another firmware. And flash it as the same way you know.
Remember: this is important: before you flash, you must do Factory reset, and format cache partition, in order to have a clean installation. ( many people dont do that, and after time, the mobile seems to have bugs, it is because need factory reset, and cache partition, so, DO IT!)
Once ODIN finish to flash, you must have a Galaxy S3 CHN, with Nordic Countries firmware, but with modem, and bootloader chinese.
There is Another Way to pack and unpack tar files, if you use Linux, search XDA for this, or you can use CYGWIN, wich is a Linux Console for Windows. ( search in XDA too)
With CYGWIN you can unpack and pack in tar and generate md5 checksum firmwares.
You Can change your firmware in other way too.
First you need to flash the CHINA firmware as it comes, without modifications.
Next you only need to open the Nordic Countries Firmware, with total commander, and delete, modem.bin, tz.img, sboot.bin, the rest of files still in rom. You can delete recovery too, if you have a custom one. (don’t forget backup the original file)
Then, Flash this rom without modem, via ODIN, in PDA, y that is all!.
Next you need to do Factory reset and Format Cache partition.
Here is the links of the Rom I Made for my Galaxy S3
I9300XXEMG4_I9300NEEEMG2_I9300ZCELL1_modem_chn.tar.part1
https://app.box.com/s/bxqbc0ic4xlzf4khfahl
I9300XXEMG4_I9300NEEEMG2_I9300ZCELL1_modem_chn.tar.part2
https://app.box.com/s/1fhdxz6c2jp2d7pmdpye
I9300XXEMG4_I9300NEEEMG2_I9300ZCELL1_modem_chn.tar.part3
https://app.box.com/s/qij1txpml75yp70gg7su
I9300XXEMG4_I9300NEEEMG2_I9300ZCELL1_modem_chn.tar.part4
https://app.box.com/s/pfp1iy2h3gwn17yyuzt1
NOTE: Its Seems to be a problem with the cheksum of the file I9300XXEMG4, just del, the .md5 extension, and flash as .tar in Odin. Its, works I Test it personally.
Enjoy
Please: If you like this post, click THANKS :good:, Post a Reply, and share...
Click to expand...
Click to collapse
I have a Problem flashing this Rom, I don Know was becaumy se the rom, or because HC-KTOOL, when i install this rom, i lost My IMEI, so, i think this rom is not compatible with the Chinese versión.
Backups your EFS folder, if you have trouble with this.
I will try later to do again, i recover my imei and my phone is working again. So BE CAREFUL AN DO IT UNDER YOUR OWN RISK.
Cpaez said:
Its, safe, you can do this with any firmware, many people change the modem.bin, to increase performance in signal, wifi, etc ( in our case we cannot do that).
There are many apks to backup your EFS, The most simple is with "Galaxy S unlock"need to be root in any case.
I root with Philz Touch and it works fine. You need to flash philz_touch_5.06.1-i9300.tar.md5 via Odin ( in PDA), restart in recovery mode, select install zip from sd card, and select Root_SuperSU.0.98-Busybox.1.20.2-signed restart your phone, and backup EFS folder.
Caution!, Root, and the rom you make with this tutorial, avoid your guarantee, because it is a custom rom, and increase the flash counter ( Red Exclamation Sign in the upper left of the screen during the boot)
You CANNOT, use triangle away, to clear the flash counter, because the bootloader is blocked.
NOTE DO NOT USE HC-KTOOL, IT BRICKS MY PHONE DELETE IMEI. ( I am try to fix it)
Good Luck
Click to expand...
Click to collapse
I Fix It, It was'nt HC-KTOOL, was the firmware, SORRY, this firmware appear to be incompatible.
I Flash Again, another firmware without modem, and i recovery my imei.
Don try this firmware, or do it under your own risk.
I can't use triangle away!! so on the next year i can't increment the counter... there is one way to do that, with framaroot, right?
I think odin mobile is much safe than odin because it doesn't flash the boot and efs for our safe, so we don't need to care about mess efs folder and loose that important information.
And when the warranty finishes i can replace the bootloader for the international model?
Best regards
Thanks
---------- Post added at 06:28 AM ---------- Previous post was at 06:15 AM ----------
Hi, i downloaded the firmware in two different places, one with "KIES_HOME_I9300ZNEMD2_I9300CHUEMD2_1133994_REV00_user_low_ship.tar.md5". And another in SamMobile.com witch contains "BOOTLOADER_I9300ZNEMD2_1133994_REV00_user_low_ship .tar, CODE_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CSC_CHU_I9300CHUEMD2_1133994_REV00_user_low_ship.t ar".
I extracted all the files and the files are the same and with the same size with one exception, the firmware i downloaded on SamMoibile.com have one more file than the other... this files is param.bin, this file is important or i can ignore it?
Thanks
Cpaez said:
I Fix It, It was'nt HC-KTOOL, was the firmware, SORRY, this firmware appear to be incompatible.
I Flash Again, another firmware without modem, and i recovery my imei.
Don try this firmware, or do it under your own risk.
Click to expand...
Click to collapse
Hi Cpaez, I was just about to try your method of combining a China Unicom ROM (in my case I9300ZNEMB2_I9300CHUEMB2_CHU, don't know why it's not _CHN, but that was what the phone came with) with the Nordic countries ROM (I9300XXEMG4_I9300NEEEMG2_NEE)
Now I got cautious, so before I proceed:
- It will always increase the flash counter if I combine firmwares like you describe?
- In that case might as well root (was hoping not to)
- There is no way of resetting the flash counter on Chinese firmware phones?
- Which firmware did you flash to get your IMEI back?
- Is the conclusion that you cannot marry the China Unicom firmware with the Nordic countries firmware?
- If so, is there another international firmware where it works?
Thanks
Nilist said:
Hi Cpaez, I was just about to try your method of combining a China Unicom ROM (in my case I9300ZNEMB2_I9300CHUEMB2_CHU, don't know why it's not _CHN, but that was what the phone came with) with the Nordic countries ROM (I9300XXEMG4_I9300NEEEMG2_NEE)
Now I got cautious, so before I proceed:
- It will always increase the flash counter if I combine firmwares like you describe?
- In that case might as well root (was hoping not to)
- There is no way of resetting the flash counter on Chinese firmware phones?
- Which firmware did you flash to get your IMEI back?
- Is the conclusion that you cannot marry the China Unicom firmware with the Nordic countries firmware?
- If so, is there another international firmware where it works?
Thanks
Click to expand...
Click to collapse
Hi Cpaez, I think your NEE firmware may simply have been too new:
http://forum.xda-developers.com/showthread.php?t=2377731
Apparently the firmwares from July onwards changes the EFS folder format, and I would guess that the problem arises because we are mixing the versions. I will try with a firmware from the same month/series (Bx) as my China Unicom.
Nilist said:
Hi Cpaez, I was just about to try your method of combining a China Unicom ROM (in my case I9300ZNEMB2_I9300CHUEMB2_CHU, don't know why it's not _CHN, but that was what the phone came with) with the Nordic countries ROM (I9300XXEMG4_I9300NEEEMG2_NEE)
Now I got cautious, so before I proceed:
- It will always increase the flash counter if I combine firmwares like you describe?
- In that case might as well root (was hoping not to)
- There is no way of resetting the flash counter on Chinese firmware phones?
- Which firmware did you flash to get your IMEI back?
- Is the conclusion that you cannot marry the China Unicom firmware with the Nordic countries firmware?
- If so, is there another international firmware where it works?
Thanks
Click to expand...
Click to collapse
Always increase the flash counter, i dont know how the phone knows is custom rom, even if the rom is made with oficial firmware.
To reset flash counter, you need root, you can root your phone, but, as i read in this fórum, theres no way to reset the flash counter, in this model, because of the restriction of the bootloader blocked. ( it need to Access the Bootloader, and it is dangerous)
I never tried to reset the flash counter, I don't care about that. so in my experience, i can't tell you exactly if really you can or cannot do it.
YES, You can Marry China Unicom with Nordic Countries, just not with the versión i metioned up.
My first rom was
I9300XXEMD3_I9300NEEEME1_NEE ( Nordic Countries) plus I9300ZCEMD2_I9300CHNEMD2_CHN( China), It WORKS great!
My Second Rom was
I9300XXEMF6_I9300PHEEMF1_PHE ( Spain) plus I9300ZCEMD2_I9300CHNEMD2_CHN( China), It WORKS great too!!
My third Rom was
I9300XXEMG4_I9300NEEEMG2_NEE ( Nordic Countries) plus I9300ZCEMD2_I9300CHNEMD2_CHN( China), It Mess My IMEI
When i lost my IMEI, y was in Panic!!! Obviously.! so i try to recovery with HC-Ktool, "unlock Samsung S", and nothing, I Use too EFS pro, And nothing, I was so worried, I delete EFS Folder, I Modify with Root Explorer, and Nothing, Even I format the EFS partition with "EFS Pro" ( don't do it if you don't have a backup of your EFS Folder).
I read in other post somebody, carried his phone, to Service, and they put a old rom, and he recovered his IMEI.
So i Flash the last Custom Rom who Works: I9300XXEMF6 and Works again, I recovered my IMEI.
I don't like have doubts, so, I flash Again, I9300XXEMG4, but, only flash the files boot.img, cache.img, system.img, hidden.img, without the china modem ( because the modem is right now in the phone). I LOST MY IMEI AGAIN!.
I just flash: I9300XXEMF6 and i recovered my IMEI.
In conclusión, i think, the newest roms, has diferent structure in the EFS partition, maybe It don't loss the IMEI, only the rom can't see it.
I will try to do with the lastest Spain Rom, if this Works, i will tell you.
Nilist said:
Hi Cpaez, I think your NEE firmware may simply have been too new:
http://forum.xda-developers.com/showthread.php?t=2377731
Apparently the firmwares from July onwards changes the EFS folder format, and I would guess that the problem arises because we are mixing the versions. I will try with a firmware from the same month/series (Bx) as my China Unicom.
Click to expand...
Click to collapse
EXACTLY!!!
I noticed after i had the problem! LOL!!
We have to wait a new China Unicom Firmware, to mix New One.
I comment to You... the last that works is:
I9300XXEMF6_I9300PHEEMF1_PHE + I9300ZCEMD2_I9300CHNEMD2_CHN
Thank you so much for you information, i will not try any more latest roms, until a newest china unicom.
FMBLima said:
Hi, i downloaded the official rom to my device (FACTORY_I9300ZNEMD2_I9300CHUEMD2_CHU), but i this file contains 4 files... BOOTLOADER_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CODE_I9300ZNEMD2_1133994_REV00_user_low_ship.tar, CSC_CHU_I9300CHUEMD2_1133994_REV00_user_low_ship.tar and MODEM_I9300ZNEMA1_862886_REV00_user_low_ship.tar.
how to flash it using odin?
Thanks
Click to expand...
Click to collapse
Hi!, FMB Lima, Are you ever test newest firmwares?, working?, i will try the newes CHN_CHN, i Hope Its Works, i still in the i9300XXEMF6.

Bootloader and modem update - Odin VS Twrp

Hi guys, to my understanding BL/CP are available in tar or zip formats and may be updated via Odin or Twrp respectively. Appreciate any advice as to differences (if any) between the two methods. TIA
The only difference is that one (.zip) can be flashed via TWRP (this would mean you have a custom rom and a tripped Knox counter). The other (.tar) is signed by Samsung and can be flashed via Odin without tripping Knox.
CuBz90 said:
The only difference is that one (.zip) can be flashed via TWRP (this would mean you have a custom rom and a tripped Knox counter). The other (.tar) is signed by Samsung and can be flashed via Odin without tripping Knox.
Click to expand...
Click to collapse
I reckon this probably means it doesn't matter to flash with twrp or odin if knox is already 0x1.
Xp3riaXpr3ss said:
I reckon this probably means it doesn't matter to flash with twrp or odin if knox is already 0x1.
Click to expand...
Click to collapse
Correct. I find it easier to flash in TWRP because it's simpler to stay where I am and download the file, reboot to recovery and flash. Rather than going upstairs to my computer, downloading the file, putting phone in Download mode, opening Odin and loading the files, then connecting the phone to the computer then flashing the files.
CuBz90 said:
Correct. I find it easier to flash in TWRP because it's simpler to stay where I am and download the file, reboot to recovery and flash. Rather than going upstairs to my computer, downloading the file, putting phone in Download mode, opening Odin and loading the files, then connecting the phone to the computer then flashing the files.
Click to expand...
Click to collapse
True that. I only ever return to Odin to flash official firmware in the event of soft bricks with denied access to Twrp, however, was getting confused partly due to written instructions for roms requiring BL/CP to be flashed in download mode. Thanks for clearing this up. Cheers.
my current booloader is version 1...can anybody tell me how can update it to version 4? i am using s7 edge SC02H(snapdragon) japan.
thanks
Looking for the right modem and bootloader files
Hello,
I'm running Nougat on my s7 g930f it's using the tgp rom. In preparation for an oreo upgrade I atempted to flash an odin-zip file I found on LightRom's page, thinking it would give me a modem update. This was an extremely bad idea. Now my system does still boot, but I have no signal at all, my phone number, base band, IMEI, mobile network, etc all show as unknown under settings, about phone and the various status checks. Now when I atempt to go in to odin again to flash another modem update now I'm told that the atempt has failed. I'd appreciate some help. What file do I need to get the bl and the cp file? I'm running twrp 3.2.3, and i'd like my signal back.
Thanks.
Dave.

SM-G935F Firmware for United States

Hello, I purchase a SM-G935F from a pawnshop today that was flashed with a custom ROM however it does not boot. The phone goes into download mode just fine and want to flash stock firmware but cannot find the USA version. The box came the phone and appears to be a USA version, the UPC code on the box is 8806088275123 and I check the IMEI on a website service and it came back with this model number SM-G935FZKLTTT and says it was sold in the USA. Any help from members would be greatly appreciated, thank you in advance for your help.
Mark
You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
benjamen50 said:
You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Click to expand...
Click to collapse
Thank you my friend, trying now.
I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.
benjamen50 said:
I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.
Click to expand...
Click to collapse
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Right now the phone will not boot, it shows the title of the phone but then just loops back to a black screen.
benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Got it, thank you so much for all your help, I really appreciate it.
benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Hello again Benjamen50, it failed on the first try, do I need to check re-partition? or Nand Erase? What about a Pit file? sorry to keep bothering you but I appreciate your help.
Mark
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Thank you my friend, you are the best. I flashed a older version and it worked perfect. I cant thank you enough for all your help and patience!
benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Hello again, well I thought it worked because I got a PASS in Odin however, when the phone boots, I get a Black screen saying Samsung Galaxy S7 Edge then it goes to a blue screen with the android logo and it says erasing at the bottom for a few seconds then the screen goes black. The phone still goes into download mode however, it will not go into recover mode. Before flashing this I could get into recovery mode but would see a custom page with loading and rebooting options. Am I missing the stock boot loader? So sorry to keep bothering you about this.
Mark
try using octoplus samsung tool if you dont know how look it up on youtube first best of luck to you

Flashing stock firmware with TWRP?

Hey guys, I was wondering if there is a way to flash stock firmware for the s6 tab lite without a computer? I don't have access to mine at the moment, and my tablet currently has lineageOS with root and twrp on it. The firmware that I downloaded seems to only be compatible with Odin, any insight would be greatly appreciated!
With TWRP you can only flash a Customrom.
Have you create a Backup oft the Stockrom before you flashed the Customrom ?
If yes , so you can restore this.
bierma32 said:
With TWRP you can only flash a Customrom.
Have you create a Backup oft the Stockrom before you flashed the Customrom ?
If yes , so you can restore this.
Click to expand...
Click to collapse
According to Magendaz, one can flash kernel, firmware, and custom ROM with TWRP.
I realize I didn't read the thread correctly, I apologize. My post is for using odin
-------
I wanted to root the device, but changed my mind after learning you can't be in stock firmware and have twrp/root at the same time (please correct me on this since I was having trouble trying to root my device via TWRP since I was stuck on recovery when trying to boot into system with bootloader and OEM Unlocking enabled; I assume I bricked the tablet somehow).
If you haven't created a backup like I did, you have to use ODIN to flash to the stock firmware. Here's how I got it done:
Download the firmware via: https://samfw.com/firmware/SM-P610/XAR/P610XXU2BTK2 or whichever website has the stock firmware
Look into the region code (CSC) your device has. XAR is the firmware region for the United States. I wasn't able to tell which region code I had since I correctly guessed
Insert the first 3 files to ODIN (AP, BL, CSC) and Start
https://imgur.com/pvOcPmy
I was a bit worried that there is no CL file at first but I assume that's only for LTE (
https://www.reddit.com/r/samsung/comments/99f1w2/_/e4n63ue
)
Hope this helps
Pancake Dressing said:
I realize I didn't read the thread correctly, I apologize. My post is for using odin
-------
I wanted to root the device, but changed my mind after learning you can't be in stock firmware and have twrp/root at the same time (please correct me on this since I was having trouble trying to root my device via TWRP since I was stuck on recovery when trying to boot into system with bootloader and OEM Unlocking enabled; I assume I bricked the tablet somehow).
If you haven't created a backup like I did, you have to use ODIN to flash to the stock firmware. Here's how I got it done:
Download the firmware via: https://samfw.com/firmware/SM-P610/XAR/P610XXU2BTK2 or whichever website has the stock firmware
Look into the region code (CSC) your device has. XAR is the firmware region for the United States. I wasn't able to tell which region code I had since I correctly guessed
Insert the first 3 files to ODIN (AP, BL, CSC) and Start
https://imgur.com/pvOcPmy
I was a bit worried that there is no CL file at first but I assume that's only for LTE (
https://www.reddit.com/r/samsung/comments/99f1w2/_/e4n63ue
)
Hope this helps
Click to expand...
Click to collapse
I am unable to connect the device to odin, and ideas of what I could be missing?
EDIT: I wasn't in the correct mode.
Pancake Dressing said:
I realize I didn't read the thread correctly, I apologize. My post is for using odin
-------
I wanted to root the device, but changed my mind after learning you can't be in stock firmware and have twrp/root at the same time (please correct me on this since I was having trouble trying to root my device via TWRP since I was stuck on recovery when trying to boot into system with bootloader and OEM Unlocking enabled; I assume I bricked the tablet somehow).
If you haven't created a backup like I did, you have to use ODIN to flash to the stock firmware. Here's how I got it done:
Download the firmware via: https://samfw.com/firmware/SM-P610/XAR/P610XXU2BTK2 or whichever website has the stock firmware
Look into the region code (CSC) your device has. XAR is the firmware region for the United States. I wasn't able to tell which region code I had since I correctly guessed
Insert the first 3 files to ODIN (AP, BL, CSC) and Start
https://imgur.com/pvOcPmy
I was a bit worried that there is no CL file at first but I assume that's only for LTE (
https://www.reddit.com/r/samsung/comments/99f1w2/_/e4n63ue
)
Hope this helps
Click to expand...
Click to collapse
Do i still insert the CP file even if i have it?

Bricked G950F with Empty efs folder

Hi guys, a few months ago I tried to install a custom rom (LightRom) and I was stupid enough to not backup my EFS folder. It stuffed up my Sim card so I tried using a tutorial which said to flash a file called fix.regalstreak. After flashing this my phone was hard Bricked and after flashing TWRP, my phones EFS was empty and no ADB command could fix it. I still am unable to boot into any ROM or stock - even though I can get into the custom Roms install page and my EFS folder is empty with no backup so how do I fix this?
Note:
When flashing stock firmware, if I try to use a pit file with combination of AP, BL, CP, CSC it fails, but if I flash AP, BL or CP it works so CSC has an Issue I think.
However, when I flash with no pit file my phone gets stuck at the Samsung Galaxy S8 screen.
Sorry for the long post
I had the same problem but I managed to solve it by downloading the file: https://www.mediafire.com/file/z0z69kilpala6tu/EFS-SM-G950F-31-08-2018_03-48-37.tar/file after opening in odin put the device in download mode, use odin 3.11.1 open the file in the AP tab then press start, after the procedure, install twrp and install a custom rom I recommend the hades rom 2.0, the stock rom doesn't work the only problem and the device has a null imei
Thank you so much I have been searching for answers everywhere and you have saved my phone
Couldn't install AP file
It says Blocked by OEM Lock
Paulowesley456 said:
I had the same problem but I managed to solve it by downloading the file: https://www.mediafire.com/file/z0z69kilpala6tu/EFS-SM-G950F-31-08-2018_03-48-37.tar/file after opening in odin put the device in download mode, use odin 3.11.1 open the file in the AP tab then press start, after the procedure, install twrp and install a custom rom I recommend the hades rom 2.0, the stock rom doesn't work the only problem and the device has a null imei
Click to expand...
Click to collapse
Thank you so much
great! does anyone know, if there is somewhere such a file also for the Samsung A5 2017 SM-G520F?
metallordz said:
Couldn't install AP file
It says Blocked by OEM Lock
Click to expand...
Click to collapse
You have to Unlock OEM first

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