[Q] EFS Backup - Galaxy S III Q&A, Help & Troubleshooting

Hi all,
need to ask a couple of questions regarding the EFS backup.
1) If i use the kTool for EFS backup and do a total wipe before flashing custom ROM, (mounts and storage>format system) will the EFS backup also get wiped out? My common sense tells me yes since the internal SD will be wiped out and kTool saves the EFS files on the internal SD but just want to be sure so that i can search an alternative method for backing up as i want to flash custom ROM with total wipe.
2) Does the EFS Pro app save the EFS backup on the internal SD only or does it have an option to save on ext SD card?
3) Do i just have to be rooted to backup my EFS files? Im just asking as im terribly obsessed my EFS files will get corrupt while rooting the phone! Is there a simple way to backup my EFS files on my ext SD card without root?
4) Can my EFS files really get corrupt just by rooting my phone?
Thanks in advance for any feedback
KJD

luger77 said:
Hi all,
need to ask a couple of questions regarding the EFS backup.
1) If i use the kTool for EFS backup and do a total wipe before flashing custom ROM, (mounts and storage>format system) will the EFS backup also get wiped out? My common sense tells me yes since the internal SD will be wiped out and kTool saves the EFS files on the internal SD but just want to be sure so that i can search an alternative method for backing up as i want to flash custom ROM with total wipe.
2) Does the EFS Pro app save the EFS backup on the internal SD only or does it have an option to save on ext SD card?
3) Do i just have to be rooted to backup my EFS files? Im just asking as im terribly obsessed my EFS files will get corrupt while rooting the phone! Is there a simple way to backup my EFS files on my ext SD card without root?
4) Can my EFS files really get corrupt just by rooting my phone?
Thanks in advance for any feedback
KJD
Click to expand...
Click to collapse
I know nothing about EFS backup but how about this. I assume you have access to a PC and the usb cable that came with the fone. Or else you do have a microsd card in the fone. Why don't you do the backup and copy the files to either the microsd card or a PC. That way you know you have a backup you can use.
In most cases, and someone can correct me if I'm wrong, the format system will not touch your backups.
HTH

guhvanoh said:
I know nothing about EFS backup but how about this. I assume you have access to a PC and the usb cable that came with the fone. Or else you do have a microsd card in the fone. Why don't you do the backup and copy the files to either the microsd card or a PC. That way you know you have a backup you can use.
In most cases, and someone can correct me if I'm wrong, the format system will not touch your backups.
HTH
Click to expand...
Click to collapse
Yes very true, i can also do that and it also crossed my mind but im afraid that by doing so, copying the EFS files and folders onto a PC or directly to the ext SD card will alter the files and folders in a way that they cannot be restored and i dont want to take that risk unless im totally sure of what im doing or if this can actually be done.
Thanks just the same for ur feedback

Ok so I just found out that with EFS Pro I can backup on my pc safely. Do I need to be rooted to use this app and safely backup the efs files?
Thanks

Related

forgot to do nandroid backup

i went to do a nandroid restore and it says it couldnt be opened
i need a zip file or something to flash an original ROM ot start over...
im afraid i may have screwed up my phone for good. i have it booted up into recovery mode but i formatted the sd card before i backed it up.
HELP! please!
silver2kgti said:
i went to do a nandroid restore and it says it couldnt be opened
i need a zip file or something to flash an original ROM ot start over...
im afraid i may have screwed up my phone for good. i have it booted up into recovery mode but i formatted the sd card before i backed it up.
HELP! please!
Click to expand...
Click to collapse
You haven't screwed up your phone but you have lost your data if you haven't done a nandroid... Why do you format your SD BTW? It is not necessary unless you have Apps2SD... Also a nandroid doesen't save your SD card data it saves your custom ROM with all your mods to your SD... Your text is actually quite confusing... Have you lost your modified ROM or your SD card data? If it's your SD card data you might be able to find software on the internet for recovery of lost files...
just download a new rom;
go into recovery;
check 'usb toggle mode';
copy *.zip to your phone;
wipe all the things you need to wipe;
flash your *.zip
*after you've created a new BART or Nandroid backup of your working system,
copy the BART or Nandroid folder from your SD-card to your local pc so you always have a good backup by hand
**you have NOT bricked your phone so don't stress out

[Q] Nandroid Backup

M a N00b i admit , well i jst want to know how to make a nandroid backup...with simple step, even i heard after making back up the phone goose back to factory default .?
Make a custom recovery first.Then nandroid backup it.Basically a nandroid backup is like saving your 'gameplay'. Its just for backup purpose before you flash another ROM.
Custom ROM instructions:
http://androidforums.com/getitnowma...ry-optimus-one-p500-thunderg.html#post1896517
so to make a backup i hav to download all those file & than go in recovery mood & than make a backup?
install custom recovery
load custom recovery
run a nandroid backup.
the backup will be stored on your sd card
titch.ryan said:
install custom recovery
load custom recovery
run a nandroid backup.
the backup will be stored on your sd card
Click to expand...
Click to collapse
Well i have run nandroid back up and they are in my sd card. and if i want to flash my phone, i will have to wipe my sd card. won't that delete nandroid folder from the card?
Guys I also want to ask following:
1. I am on void delta. Before installing void, I had rooted my phone and installed custom recovery and thereafter I made a simple nandroid backup(without android secure or ext. Now, if i restore that nandroid backup, will I still have the custom recovery?
2. I have void with 784 mb partition on sd for apps. And I have about 298 apps installed (almost used 90% of ext partition).
Can I make a complete nandroid backup of system, data and ext? And will it be restorable? Kindly answer both the questions.
Thanks to all you great people.
sovikhaque said:
Well i have run nandroid back up and they are in my sd card. and if i want to flash my phone, i will have to wipe my sd card. won't that delete nandroid folder from the card?
Click to expand...
Click to collapse
Sure it will. That's why you should backup everything from the SD to your computer before partitioning it.
lekhwani said:
Guys I also want to ask following:
1. I am on void delta. Before installing void, I had rooted my phone and installed custom recovery and thereafter I made a simple nandroid backup(without android secure or ext. Now, if i restore that nandroid backup, will I still have the custom recovery?
2. I have void with 784 mb partition on sd for apps. And I have about 298 apps installed (almost used 90% of ext partition).
Can I make a complete nandroid backup of system, data and ext? And will it be restorable? Kindly answer both the questions.
Thanks to all you great people.
Click to expand...
Click to collapse
1. Yes.
2. If you have enough free space on the FAT partition of the SD I don't see why it shouldn't be possible. Although some people reported problems when trying to restore a NAND backup. Haven't tried it myself yet, so this is just hearsay.
To use copy flash_image and recovery-RA-GNM-thunderg-1.1.0.img to the root of your sdcard.
i dint got the point by root of SD card, where should i place in sd card?
iamrajeev said:
To use copy flash_image and recovery-RA-GNM-thunderg-1.1.0.img to the root of your sdcard.
i dint got the point by root of SD card, where should i place in sd card?
Click to expand...
Click to collapse
Just on the sd card. not in any folder of sd.

[Q] Does Nandroid backup the internal storage??

Hi guys,
I own a S3 and for one year I just dealed with the stock ROM, just root access. Saturday I decided to enter the modding world but I knew it would bring a lot of troubles...
I did a nandroid backup of 4.1.2 stock FW just before the flashing, but no way it restores, after an hour of processing it shows - Error restoring data! - it boots but it's a total mess. I even restored the original stock FW with triangle away, wipe all and double ODIN flash and then reflashing the clockworkmod recovery to restore the backup again but nope, won't work.
Luckily I did a full backup with Titanium backup prior, the real trouble is with ES file explorer: I did copy/paste of the entire internal storage to the external microsd but for some reasons it stopped at "D", "Downloads" folder... I lost everything else and I realized this only AFTER wiping and flashing, of course...
I'm trying to recover the files with Hexamob, hope this will work....
I have this two questions:
Does Nandroid work only with backup < 2.5 Gb? Mine is 4.5 Gb...
Does Nandroid backup the internal storage, too??
Thank you all guys
Joker87 said:
I have this two questions:
Does Nandroid work only with backup < 2.5 Gb? Mine is 4.5 Gb...
Does Nandroid backup the internal storage, too??
Thank you all guys
Click to expand...
Click to collapse
If I am not wrong, Nandroid does a backup of your phone (system, data etc) so that when you restore it, you got anything like it was. It does not backup the SD card though. In addition backups of over 2.5gb should work.
/data is the internal memory? Or is it /sdcard?
Joker87 said:
/data is the internal memory? Or is it /sdcard?
Click to expand...
Click to collapse
its all the internal memory.
/system
/data
/cache
...are all on the emmc memory and are backed up in a nandroid backup.
/sdcard is actually a mount of /data/media, however this is ignored by nandroid backups for obvious reasons
Sent from my GT-I9300 using Tapatalk 2
rootSU said:
its all the internal memory.
/system
/data
/cache
...are all on the emmc memory and are backed up in a nandroid backup.
/sdcard is actually a mount of /data/media, however this is ignored by nandroid backups for obvious reasons
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
So /sdcard is the external microsd? And /data is the internal memory (I mean what you see when connecting phone to PC, Internal memory and external sd)?
If nandroid backed up internal memory would be great, may be there's some way to recover datas from backup files (unyaffs won't work, Titanium Backup just shows apps and their datas).
I'll do some further research.
no. sdcard is the internal SD, which is just a link to /data/media. to backup it, use copy and paste. no, it's not possible to recover internal SD data from a nandroid backup
Be aware that Nandroid does not backup your EFS .
jje
it can. depends on the recovery
Yep i know problem is that some think any recovery backs up EFS .
Wrong recovery no EFS backup .
We desperately need some stickied faqs and guides on this forum .
jje
Joker87 said:
So /sdcard is the external microsd? And /data is the internal memory (I mean what you see when connecting phone to PC, Internal memory and external sd)?
If nandroid backed up internal memory would be great, may be there's some way to recover datas from backup files (unyaffs won't work, Titanium Backup just shows apps and their datas).
I'll do some further research.
Click to expand...
Click to collapse
/sdcard is the "internal sd"
/extSdCard is the "external sd"
/data is something different that just so happens to be the home of /sdcard
As I feared, no internal storage backup in Nandroid. But what makes me more angry is that s****y ES file explorer so crappy it can't even perform a simple task like copy-paste. If that worked I wouldn't have lost anything. :crying:
Not to mention the useless nandroid... doesn't work either.
However I did manually backed up the EFS folder, but I don't really think it matters in this case.
If your /sdcard was 90% full, where would the nandroid go? External obviously? But recovery devs cannot assume that everyone has an external sd card with enough free space to store a 15 GB backup.
Sent from my GT-I9300 using Tapatalk 2
Joker87 said:
As I feared, no internal storage backup in Nandroid. But what makes me more angry is that s****y ES file explorer so crappy it can't even perform a simple task like copy-paste. If that worked I wouldn't have lost anything. :crying:
Not to mention the useless nandroid... doesn't work either.
However I did manually backed up the EFS folder, but I don't really think it matters in this case.
Click to expand...
Click to collapse
FX file explorer
better .
jje
Just clarifying
Hey guys, this is my first ever post on xda!
Just to clarify, a nandroid backup will only backup device root files, and not the (internal) sdcard, nor the extsdcard files, from my understanding of this thread. So to do a complete backup of ALL phone data, I should perform the nandroid backup to extsdcard, and then simply copy (internal)sdcard and extsdcard to my computer for safe keeping?
Thank you!
toomfly7 said:
Hey guys, this is my first ever post on xda!
Just to clarify, a nandroid backup will only backup device root files, and not the (internal) sdcard, nor the extsdcard files, from my understanding of this thread. So to do a complete backup of ALL phone data, I should perform the nandroid backup to extsdcard, and then simply copy (internal)sdcard and extsdcard to my computer for safe keeping?
Thank you!
Click to expand...
Click to collapse
Yep! I discovered it losing data xD
Joker87 said:
Hi guys,
I own a S3 and for one year I just dealed with the stock ROM, just root access. Saturday I decided to enter the modding world but I knew it would bring a lot of troubles...
I did a nandroid backup of 4.1.2 stock FW just before the flashing, but no way it restores, after an hour of processing it shows - Error restoring data! - it boots but it's a total mess. I even restored the original stock FW with triangle away, wipe all and double ODIN flash and then reflashing the clockworkmod recovery to restore the backup again but nope, won't work.
Luckily I did a full backup with Titanium backup prior, the real trouble is with ES file explorer: I did copy/paste of the entire internal storage to the external microsd but for some reasons it stopped at "D", "Downloads" folder... I lost everything else and I realized this only AFTER wiping and flashing, of course...
I'm trying to recover the files with Hexamob, hope this will work....
I have this two questions:
Does Nandroid work only with backup < 2.5 Gb? Mine is 4.5 Gb...
Does Nandroid backup the internal storage, too??
Thank you all guys
Click to expand...
Click to collapse
Ya possible......
TUTORIAL for internal storage backup
http://forum.xda-developers.com/and...age-backup-t3389172/post67103552#post67103552

[Q] TWRP Backup and Restore question

Hi guys... I have a quick question..
I want to make a nandroid backup before I try a custom rom, so i can simply restore my backup if i dont like the rom.
I only have about 1.8GB left on my internal storage... I dont have an external sd card right now.
The backup size is about 2.8GB... so I am 1GB short...
My question is, if I backup System and Boot as first batch, then transfer the file to my PC to free up my phone again, then backup Data as 2nd batch and transfer that to my PC again..... now once I want to restore my backup, will those 2 batches of restore process work or not? Im not sure if a nandroid backup needs to be a single file only.... Im out of storage capacity that's why splitting the backup is my only option
thanks in advance!
mbolinao said:
Hi guys... I have a quick question..
I want to make a nandroid backup before I try a custom rom, so i can simply restore my backup if i dont like the rom.
I only have about 1.8GB left on my internal storage... I dont have an external sd card right now.
The backup size is about 2.8GB... so I am 1GB short...
My question is, if I backup System and Boot as first batch, then transfer the file to my PC to free up my phone again, then backup Data as 2nd batch and transfer that to my PC again..... now once I want to restore my backup, will those 2 batches of restore process work or not? Im not sure if a nandroid backup needs to be a single file only.... Im out of storage capacity that's why splitting the backup is my only option
thanks in advance!
Click to expand...
Click to collapse
I know the answer already... I just tried it... Yes it will work as they are in different partitions.

gt-i9300 unable to restore efs from twrp backup

Hello
After flashing cm13 on my s3 my IMEI was lost. Now I can´t restore my efs folder with my TWRP backup.
I have the efs.ext4.win , efs.ext4.win.md5 and efs.info files but dont know how to restore them on my device.
Pleas help me !
Should be simple: tick restore, choose backup file, tick efs. Don't touch the single files.
I tried but twrp does not show the backup folder on the sd card.
Do i have to zip the backup folder ?
As I said: don't touch the backup-files. Did you store your backup on internal storage? You can change storage within backup /restore procedure.
No i stored them on the sd then ticked restore from sd.
Now i move it to the internal storage. Maybe tis works.
didn´t work ether
Means: TWRP doesn't find the backup?
create new backup using twrp (example boot partition) and copy to that folder yours efs files backup, its should work
or try restore using other recorvery arter97

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