Backup efs file - Galaxy Tab Q&A, Help & Troubleshooting

How do i make a backup efs file for a gtab sch-i800 (cdma)? I have the app efs pro 1.9 and 2.0, but no success. The app does not have the tab bin file. (?). Any other ways to make a backup efs file?
Thanks.
W.
Sent from my SCH-I800 using xda app-developers app

you should be able to copy the /efs folder manually.
For P1000, when we flash CM rom, it backs up efs to sdcard ( /backups I think).
The oldest copy usually the most reliable (if before flashing CM you have a good IMEI)

priyana said:
you should be able to copy the /efs folder manually.
For P1000, when we flash CM rom, it backs up efs to sdcard ( /backups I think).
The oldest copy usually the most reliable (if before flashing CM you have a good IMEI)
Click to expand...
Click to collapse
Hi priyana,
Seen alot of your posts! You give really good advice. Especially--this is the original gtab forum!
Anyway, how would i make a backup manually? I will look around in the other tab that's got the CM11 p1c rom to see if i can find it. I just hope terenceng will be able to fix the data bug in the cm build. I woyld love to activate the tab to 3g. I have 3 of these 'ole tabs around, so i don't have a problem finding the file. I just want to transfer it.
W.
Sent from my SCH-I800 using xda app-developers app
Update-- i copied the efs file. Now, how do i install it? Just copy it again or?

Yes. Just keep in safe place. Note down the permissions too.
Although honestly I never restore efs before.
Usually the best way to restore it is by restocking to GB. That was the case of p1. I think it should be the same as p1c.
Sent from my GT-P1000 using xda app-developers app

priyana said:
Yes. Just keep in safe place. Note down the permissions too.
Although honestly I never restore efs before.
Usually the best way to restore it is by restocking to GB. That was the case of p1. I think it should be the same as p1c.
Sent from my GT-P1000 using xda app-developers app
Click to expand...
Click to collapse
What are the permissions i need to note? Is it the rx dx x? Anyway, i got the file saved to the sd card on my tab with galaxy cubed. Now i want to move the sd card to my other tab with kitkat to copy the info there. Then all i have to do is update the imeid (meid for us cdma people) to the correct number. Finally, wait for terenceng to fix the data on his build. Hopefully i will have a FULLY working custom rom.
Sent from my SCH-I800 using xda app-developers app

Permission of each individual folders and files.
Not sure if you can move between tabs.
It is an "encrypted file system" and I am sure it is encrypted from the hardware info.
That is why flashing a stock ROM can regenerate the content.
But anyway, hope it works.
Sent from my GT-P1000 using xda app-developers app

priyana said:
Permission of each individual folders and files.
Not sure if you can move between tabs.
It is an "encrypted file system" and I am sure it is encrypted from the hardware info.
That is why flashing a stock ROM can regenerate the content.
But anyway, hope it works.
Sent from my GT-P1000 using xda app-developers app
Click to expand...
Click to collapse
When i go to the efs file using root browser, the file does not show any files or folders inside. So, how would i get the permissions?
Or, what would i need to return the tab to stock? I have a stock gb rom with root, heimdall and odin ready to go. Would i need a pit file of some sort? And, what about the different memory systems rfs,ext4, and mtd? Any problems here?
Sent from my SCH-I800 using xda app-developers app

Can't say about p1c. Wonder if anyone can chime in.
Look at my /efs number of files
1|[email protected]:/ $ su
[email protected]:/ # find /efs
find /efs
/efs
/efs/nv_data.bin
/efs/nv_data.bin.md5
/efs/.nv_state
/efs/.nv_data.bak.md5
/efs/updated_filesystem
/efs/.android
/efs/nv.log
/efs/.nv_data.bak
/efs/imei
/efs/imei/mps_code.dat
/efs/imei/.nvmac.info
/efs/imei/bt.txt
/efs/lost+found
[email protected]:/ #
Restock with pit needed to get back to bml+rfs (partition and filesystem)
When you flash cm ROM from custom recovery, it will check and convert to mtd partition and ext4 fs
So you don't worry about conversion.
Sent from my GT-P1000 using xda app-developers app

priyana said:
Can't say about p1c. Wonder if anyone can chime in.
Look at my /efs number of files
1|[email protected]:/ $ su
[email protected]:/ # find /efs
find /efs
/efs
/efs/nv_data.bin
/efs/nv_data.bin.md5
/efs/.nv_state
/efs/.nv_data.bak.md5
/efs/updated_filesystem
/efs/.android
/efs/nv.log
/efs/.nv_data.bak
/efs/imei
/efs/imei/mps_code.dat
/efs/imei/.nvmac.info
/efs/imei/bt.txt
/efs/lost+found
[email protected]:/ #
Restock with pit needed to get back to bml+rfs (partition and filesystem)
When you flash cm ROM from custom recovery, it will check and convert to mtd partition and ext4 fs
So you don't worry about conversion.
Sent from my GT-P1000 using xda app-developers app
Click to expand...
Click to collapse
When i open the efs file using root explorer, there is nothing there. ? . Any way, i've been reading up on restocking my 'ole gtab. I think i'm about to have a flashback!
I just flashed terenceng newest update. Cameras work, but video fc's evertime. App2 sd is now good. The last major fix is data. This could be some time in comming due to terenceng computer hard disk crash. So, i've got time.
Sent from my SCH-I800 using xda app-developers app

Related

Droid-X Clockwork Recovery image. Deodexed Rooted, Froyo'd

From AllDroid.org
Thanks to Mike919 we now have a clockwork recovery backup that you can recover to your phone.
What does this give me? well it gives you a way to restore your phone to its default state but it has already been rooted and deodexed.
If you dont know what root or deodexed are then please search around the forums. I'm sorry but i simply dont have the time to answer a thousand questions.
How do i use this?
Well it's very simple.
Unzip the file
On your sdcard make a folder in sdcard\clockworkmod\backup with todays date on it like \sdcard\clockworkmod\backup\2010-08-23.23.30.41
Extract the contents of This File into that folder. There should be 5 files inside when you are done.
Install Koush's Clockwork recovery (if you haven't already)
Boot into Koush's recovery
Choose restore, then navigate to the folder you created earlier
Choose restore. Then follow the instructions on the screen.
When you reboot you will have a totally clean system, with Froyo 2.2, already rooted. and fully deodexed.
I can this tell you that this does work. I have done it myself. I also know of one other person that has done it with no problems.
Please grab the file while you can, who knows how long this will stay up.
oh, also it has a black bar with transparency. Other versions will follow i'm sure you can always replace your framework-res.apk and services.jar if you don't like it.
again search alldroid if you need help with this.
Alldroid
Awesome thank you Mike
Stupid question but you know its gonna be asked.... you need to be on 2.2 before applying the 2.2 nandroid correct?
Yeah.
Sent from my DROIDX using Tapatalk
If we wipe, flash this, then nandroid our original 2.2 data partiton but keep the new deodexed system partition we will be all set correct?
Sent from my DROIDX using XDA App
Got a error, Can't mount dev/block/etc... Any help? Also in advanced it would not allow me to mount sd card...
I have same problem, the recovery dosent mount the sd card
Sent from my DROIDX using XDA App
Just to be clear what method are you guys using?
Im using dolphin hd and don't see a dl link... am I missing something?
Sent from my DROIDX using XDA App
are we suppose to wipe or just restore this?
Nice, thanks for the heads up. Worked flawlessly! Teenfaces' black status bar looks gorgeous! =)
@cbaty08: there is a link at the very end of first post. Here:
http://alldroid.org/default.aspx?g=posts&m=8130&#post8130
@mach330: just restore using provided files. I didn't wipe, was on rooted leaked froyo.
thanks...so it retains all our stuff? aight...gonna try this out in a bit. been having problems with nandroid backup on froyo. didn't wanna go to sbf flash to do this again. i'm hoping this will fix this problem.
NO! It WILL install a fresh froyo build. This will probably come late to you though...
ok thanks...hmm..now i'm debating. you think this will fix my nandroid backup problem?
Do an advanced restore and only redo the system partition not the data and you'll keep your data and get the improved system files
Sent from my DROIDX using XDA App
crap...i guess i answered my own question. tried to restore only the system and i get:
E:can't mount /dev/block/mmcblk0 (or /dev/block/mmcblkp1)
(Device or resource is busy)
Can't mount /sdcard
Does this mean i gotta do an sbf flash?
Joe92T said:
Do an advanced restore and only redo the system partition not the data and you'll keep your data and get the improved system files
Sent from my DROIDX using XDA App
Click to expand...
Click to collapse
You know. Now that you said this, I wish I had thought of that before hand.
Sent from my DROIDX using Tapatalk
Joe92T said:
Do an advanced restore and only redo the system partition not the data and you'll keep your data and get the improved system files
Sent from my DROIDX using XDA App
Click to expand...
Click to collapse
Can anyone confirm if this will work or not? So far we've gotten two conflicting answers.
So since I was born yesterday.....
What's the difference between this and the root/2.2 leak I did the other day?. Is this blur free in all ways? Cause that's the only reason I would wipe and go through all those proper steps is to be 100% blur free.
Sent from my DROIDX using XDA App
Irishpride said:
Can anyone confirm if this will work or not? So far we've gotten two conflicting answers.
Click to expand...
Click to collapse
yes, i can confirm. works like a charm.

QUESTION: Restore nv_data.bin backup made with SGS Toolbox

I have flashed darky's no wipe and was using Axura before
Axura never changed my product code or IMEI
However darky's has changed my product code but not the IMEI
I have a proper backup created with SGS Toolbox but how do I restore it? I have root explorer so should I use that to overwrite the folder with the backup?
I only have my phone at the moment so restoring the backup from SD with the phone is what I'm looking for.
Thanks,
Brian
Sent from my GT-I9000 using XDA App
B-Naughty said:
I have flashed darky's no wipe and was using Axura before
Axura never changed my product code or IMEI
However darky's has changed my product code but not the IMEI
I have a proper backup created with SGS Toolbox but how do I restore it? I have root explorer so should I use that to overwrite the folder with the backup?
I only have my phone at the moment so restoring the backup from SD with the phone is what I'm looking for.
Thanks,
Brian
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Just replace the nv_data.bin and nv_data.bin.md5 back to your /efs folder. leave the .bak files alone if they are dated from august. those are the originals, these can be used to restore your .bin and .bin.md5 files.
if you have root explorer I would honestly copy that whole EFS folder to your SD card and maybe to a backup on the computer.
Nah no Aug files... Some nov files though... And i got this phone after the files' date so i suppose those may be it? Im guess having a proper product code and imei is all that matters correct?
Thanks and merry xmas
Sent from my GT-I9000 using XDA App
Ok.. So ive tried replacing the files with my backup and the product code stays the same... However when i tun a product check it says the backup has the correct product code... So i go to my earliest product code check folder and rename the files and paste them into the efs folder then reboot... Am i doing something wrong? I have the correct imei and things are working so should i just get a computer handy and follow the steps to restore everything?
Sent from my GT-I9000 using XDA App
useless
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] EFS partition

Hello
I have a Samsung Galaxy S with SlimBean Installed, previously I had the stock 2.3.3 XEF version and CM9
When I rooted the device for first time the first thing I did ws backing up the EFS partition, I have made subsequent backups since then. However, the files don't seem to be equal and don't match the .MD5 signatures provided.
Do the files in this partition change over time? Does that mean they are getting corrupted? The most logical thing would be that the signatures matched the files but they don't..
Thank you.
Hello
Any ideas of why this happens and if it's normal?
Thank you.
And I've just checked my phone, the .bak files have dissapeared.
I've got an old backup tho, but why did they dissapeared?
Thanks.
Edit: The rest of the files are in the efs folder, they weren't displayed because Slim filemanager doesn't show hidden files by default.
So the only question remaining is: Do you know why the MD5 signatures don't match the files?
Thank you.
I think since IMEI is unchanged - thats ok. The most important file you have to keep is nv_data.bin (i think that one) it holds your IMEI. So as long as your phone works - no panic.
Sent from my GT-I9000 using xda app-developers app
Hello
Thanks. But why does the hash change and differs from it's MD5 signature?
Probably so.. dont worry about it and keep nv_data.bin just in case.
Sent from my GT-I9000 using xda app-developers app
When you flash back to Stock 2.3.6 with or without Root it will Fix EFS for you ..just to let you know

[Q] EFS folder gone

I have flashed my phone multiple times without any problems (as far as I know). And now I realised that the backup of the original /efs and /persist folders have been lost. So I want to back them up again, but I can't find them. They're not on the phone. I also can't find them in my original Nandroid backup I made of GB 2.3.6 (stock) prior to going to an ICS Rom.
But my IMEI number is showing up correct on the phone, so it must be somewhere, but where?
Any help would be greatly appreciated.
schnurrbidurr said:
I have flashed my phone multiple times without any problems (as far as I know). And now I realised that the backup of the original /efs and /persist folders have been lost. So I want to back them up again, but I can't find them. They're not on the phone. I also can't find them in my original Nandroid backup I made of GB 2.3.6 (stock) prior to going to an ICS Rom.
But my IMEI number is showing up correct on the phone, so it must be somewhere, but where?
Any help would be greatly appreciated.
Click to expand...
Click to collapse
use rooted file explorer n go to /efs
Sent from my GT-I9000 using xda app-developers app
I would, if I could, but the problem is, that I don't have a /efs folder on my phone. I did a search with root explorer...nada. But since my IMEI is currenly present and correct, it must be stored somewhere else, right? And that location is the one I'm trying to find.
I'm currently running Ehndroix III Rom on my SGS+.
use some app from gstore to backup efs from system. juz search for efs backup
Sent from my GT-I9000 using xda app-developers app
compacity said:
use some app from gstore to backup efs from system. juz search for efs backup
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the tip. I tried and failed
Andromizer (sp?) didn't even show the option for backing up the /efs folder and Nitrality claims it backed it up, but its backup directory is nowhere to be seen. Yes, I did google the default location and it says it's supposed to be something like /clockworkmod. I have TWRP, could that have something to do with it?
schnurrbidurr said:
Thanks for the tip. I tried and failed
Andromizer (sp?) didn't even show the option for backing up the /efs folder and Nitrality claims it backed it up, but its backup directory is nowhere to be seen. Yes, I did google the default location and it says it's supposed to be something like /clockworkmod. I have TWRP, could that have something to do with it?
Click to expand...
Click to collapse
nope,twrp backup usually in extsd. if /efs cannot be seen after already rooted, then its weird, naturally da folder doesnt have dot (.) in front of da name.try disabling hidden file in system using any rooted explorer
Sent from my GT-I9000 using xda app-developers app
compacity said:
nope,twrp backup usually in extsd. if /efs cannot be seen after already rooted, then its weird, naturally da folder doesnt have dot (.) in front of da name.try disabling hidden file in system using any rooted explorer
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
I always have "show hidden folders" ticked. The weird thing is, I decided to have a look at DH's phone (same model, same rom) and again, no /efs folder. I wonder if it may be the rom? I'll be getting a new phone tomorrow, so once that's set up I'm going to return my current one to stock and see what happens.
schnurrbidurr said:
I always have "show hidden folders" ticked. The weird thing is, I decided to have a look at DH's phone (same model, same rom) and again, no /efs folder. I wonder if it may be the rom? I'll be getting a new phone tomorrow, so once that's set up I'm going to return my current one to stock and see what happens.
Click to expand...
Click to collapse
JUZ DO IT!
i also wanna know what will happen
Sent from my GT-I9000 using xda app-developers app
compacity said:
JUZ DO IT!
i also wanna know what will happen
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
I will keep you posted. Promise
schnurrbidurr said:
I will keep you posted. Promise
Click to expand...
Click to collapse
Ok, I tried to reflash stock, but failed. I don't have the phone anymore and therefore can't report anything.
Read this..
http://forum.xda-developers.com/showthread.php?t=1841250
Sent from my GT-I9001 using xda premium
schnurrbidurr said:
Ok, I tried to reflash stock, but failed. I don't have the phone anymore and therefore can't report anything.
Click to expand...
Click to collapse
well, thanks for keeping ur promise mate
n sorry if i cant help u here
Sent from my GT-I9000 using xda premium
Ok. if imei is showing you can back it up with adb. use these commands.
Code:
adb shell su -c "dd if=/dev/block/mmcblk0p27 of=/sdcard/efs.ext4 bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p12 of=/sdcard/persist.ext4 bs=4096"
you will get a backup in sdcard.
jabrif said:
Ok. if imei is showing you can back it up with adb. use these commands.
Code:
adb shell su -c "dd if=/dev/block/mmcblk0p27 of=/sdcard/efs.ext4 bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p12 of=/sdcard/persist.ext4 bs=4096"
you will get a backup in sdcard.
Click to expand...
Click to collapse
Is this method safe? I had never used adb before
Walentyn15 said:
Is this method safe? I had never used adb before
Click to expand...
Click to collapse
Yeah.. it is safe... I recommend it to use with i9001 only..

everything gone

i need help getting my root back. i've updated to 4.3 but in the process all my pictures/music/personal stuff is gone. in the storage section it's saying that 27gb is still being used so i'm assuming the data is still there but i can't do anything until i get my root back. i've tried to flash a custom recovery through fastboot but i'm getting a reported max download size error. can anyone help out?
I'm new to HTC one, but maybe structure of 4.3 differ from 4.1.
So connect phone to computer, copy all files and search folder/files there.
Data/media/0
Sent from my HTC One using xda app-developers app
anhtuanpro said:
I'm new to HTC one, but maybe structure of 4.3 differ from 4.1.
So connect phone to computer, copy all files and search folder/files there.
Click to expand...
Click to collapse
Already tried that and everything was missing.
Sent from my HTCONE using xda app-developers app
flomexico said:
Data/media/0
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Is where all the folders/files were moved during upgrade?
Sent from my HTCONE using xda app-developers app
hobomusashi said:
Is where all the folders/files were moved during upgrade?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Sounds like you have been flashing a lot of 4.2.2 roms so you may have a bunch of /0/0/0 folders that could be why you have so little space left
bigdaddy619 said:
Sounds like you have been flashing a lot of 4.2.2 roms so you may have a bunch of /0/0/0 folders that could be why you have so little space left
Click to expand...
Click to collapse
I haven't flashed any roms on this phone. I've been stock since day one. I want to try some data recovery software but I need root to utilize it. I can't get root until I install recovery but I can't do that because I keep getting an error.
Sent from my HTCONE using xda app-developers app
flomexico said:
Data/media/0
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
well thanks to this fine user i found all of my missing data. i have another quick question however...
i noticed in data/media (which is where all my lost data was located) there is a 0 folder that houses the current contents of the "sdcard". i noticed that /sdcard and data/media/0 are linked together but i'm not sure which is the emulated folder and which is the proper folder. basically what i'm trying to do is restore the contents of the data/media folder to it's proper location. i read that the "0" folder is created for a second user? if that's the case if i move the contents of the "0" folder to the the data/media folder would the "sdcard" folder reflect those changes or would i have to move data/media to "0" instead?

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