Develop Bugs

[Q] Factory Folder Nexus

Hi Folks,
Can someone post screenshot or list of files that he has at factory folder, i have a problem with generic IMEI and my factory folder was totaly empty. I want to know what files has to be at factory folder?
Best Regards,

Is this what you needed?
Edit: running 4.2 from Google, I don't know if that makes a difference
Sent from my Galaxy Nexus using Tapatalk 2

Wow so many things. Is someone know where i can get all this files. Yesterday I've found that I don't have any files at that folder and I ve restore only nv data
Sent from my Galaxy Nexus using xda app-developers app

Aren't they supposed to be included with the ROM? I mean I have no idea honestly. I was running CM10 before, and flashed back to 4.1.2 stock and then applied the update.zip for 4.2 update. So essentially everything was wiped prior to where I am now.
Sent from my Galaxy Nexus using Tapatalk 2

Those files are device-specific and should not be copied from another device.
Very strange this happened to you, though. The factory files should not normally be affected by ROM flashing.

Yes I know but I don't know what is going on. Every time I've flash stock image from Google page through fast boot but..
Actually after restore of my generic IMEI I have problem only with Mac address of the Bluetooth which is some thing like 43:00:00:00. But everting else works fine without this files at factory folder. Is anyone knows how to restore them?
Sent from my Galaxy Nexus using xda app-developers app

lostindark said:
Yes I know but I don't know what is going on. Every time I've flash stock image from Google page through fast boot but..
Actually after restore of my generic IMEI I have problem only with Mac address of the Bluetooth which is some thing like 43:00:00:00. But everting else works fine without this files at factory folder. Is anyone knows how to restore them?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
now i see when i open factory folder through root explorer that info bar shows 6.04 mb used. is that means that i have files inside the folder but i dont seen them?

Is there maybe an option ticked in Root Exlporer that's hiding files starting with . ?

cmstlist said:
Is there maybe an option ticked in Root Exlporer that's hiding files starting with . ?
Click to expand...
Click to collapse
ive already checked this option

Hi Folks,
Can you someone send me Bluetooth folder from factory folder I want to try to repair my BT MAC address.
Thanks in advance
Sent from my Galaxy Nexus using xda app-developers app

Can you help? Someone?
Sent from my Galaxy Nexus using xda app-developers app

lostindark said:
Hi Folks,
Can someone post screenshot or list of files that he has at factory folder, i have a problem with generic IMEI and my factory folder was totaly empty. I want to know what files has to be at factory folder?
Best Regards,
Click to expand...
Click to collapse
Did u solve this problem？ how？thanks.
Sent from my Galaxy Nexus using xda app-developers app

re:
jaymsen said:
Did u solve this problem？ how？thanks.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Hi i bought another phone for my wife and copied these files from her phone through root explorer, all files and folders except nv data files. After tha i've correct all permisssions to be the same like original and also at the bluetooth file i`ve enter original mac but it works with anyone. if i can help with something except nv files you can write me..

[Q] problem to restore EFS folder

I have a backup done with root explorer, that I copied and pasted the files to the sd card. the efs folder has been corrupted and now if I try to paste the file when you restart the phone meeting those corrupt! how should I do?

So you have loose folder and not .img ?
Sent from my GT-N7100

UtkarshGupta said:
So you have loose folder and not .img ?
Sent from my GT-N7100
Click to expand...
Click to collapse
no I don't have a. img but the entire folder and every time I copy the files the system will regenerate the old corrupted files

Try to copy it with adb.
Sent from my GT-N7100

UtkarshGupta said:
Try to copy it with adb.
Sent from my GT-N7100
Click to expand...
Click to collapse
I tried to copy with adb but it's the same thing. I do not know how to copy from adb in recovery mode but I would not change anything

I would try to backup using toolkit the way they phone is, then incorporate the efs folder into the backed up file which can be opened using winrar. Then I would try to restore it.
Sent from my GT-N7100 using Tapatalk 2

bushako said:
I would try to backup using toolkit the way they phone is, then incorporate the efs folder into the backed up file which can be opened using winrar. Then I would try to restore it.
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
does not work

Maybe this tool could help you - http://forum.xda-developers.com/showthread.php?p=18524176
Sent from my GT-N7100

UtkarshGupta said:
Maybe this tool could help you - http://forum.xda-developers.com/showthread.php?p=18524176
Sent from my GT-N7100
Click to expand...
Click to collapse
does not work. The system restores the corrupted files.
how can I prevent the system to regenerate the file nv_data.bin?

Help me please

http://forum.samdroid.net/f60/tutorial-remounting-restoring-backup-efs-partition-3600/
http://forum.samdroid.net/f38/guide-recover-your-imei-9-steps-vaskodogamagmail-xda-6008/
http://forum.samdroid.net/f28/possible-free-efs-restoration-method-5601/
http://forum.gsmhosting.com/vbb/archive/t-1348192.html
Some forums I thought which could be helpful.
Sent from my GT-N7100

UtkarshGupta said:
http://forum.samdroid.net/f60/tutorial-remounting-restoring-backup-efs-partition-3600/
http://forum.samdroid.net/f38/guide-recover-your-imei-9-steps-vaskodogamagmail-xda-6008/
http://forum.samdroid.net/f28/possible-free-efs-restoration-method-5601/
http://forum.gsmhosting.com/vbb/archive/t-1348192.html
Some forums I thought which could be helpful.
Sent from my GT-N7100
Click to expand...
Click to collapse
does not work even a method of those listed ... How can I prevent the system regenerates the file corrupt?

Looks like a different level of problem.
Just keep searching the bet man. You will definitely come to a solution. I helped as much as I could.
Sent from my GT-N7100

someone has a backup to send me in pm? Is not going to change imei but only to repair the network.

(GUIDE)EFS/Emergency calls only/not registered with network- WHY, WHEN & HOW TO SOLVE

(GUIDE)EFS/Emergency calls only/not registered with network- WHY, WHEN & HOW TO SOLVE
HI Mates, there are already a lot of comments posted about efs. But I think a detail need to talk about. Here we are:
# suddenly you find that your phone is not getting the network. When you try to make a call it says: not registered with network. Problem remains even after restock.
WHY & WHEN
usually it happens while you flash(sometimes dirty) roms often and/or
Switching from AOSP to AOKP to SAMMY vice versa. .
HOW TO SOLVE
as you are flashing roms, naturally you are rooted and you have a root explorer. Roms from 4.1 and later ones automatically creats a efs back up while you flashing a new one. When you found the disturbances, with a root explorer search for the folder "efs_Backup".
The location varies from rom to rom. You may find it under sdcard, may find under /data/media or somewhere else. After you find the folder
Open it
You will find several zip files created in different dates. Those dates are your rom flashed dates.
Choose the right dated one remembering when your phone was fine.
Extract the zip.
Go to /efs
Delete entire contents of the folder.
Go to the efs zip extracted folder.
Selct all and move them to the /efs folder.
Your phone is back as normal!
CHEERS!
Sent from my GT-N7100 using xda premium

Very helpfull sir. Thanks a lot for theae usefull informations and solution.
Sent from my GT-N7100 using xda premium

sarefin said:
Very helpfull sir. Thanks a lot for theae usefull informations and solution.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Did you face the problem? Solved now?
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nitol said:
Did you face the problem? Solved now?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Yes sir, I've searched the entire section & your way solved just as you instructed. Can I save these efs backups in location of my choise?
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sarefin said:
Yes sir, I've searched the entire section & your way solved just as you instructed. Can I save these efs backups in location of my choise?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Sure you can. You don't need to keep them all actually. Just keep any working date's one in any place you want. Use if needed. I HOPE NOT NEEDED
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nitol said:
Sure you can. You don't need to keep them all actually. Just keep any working date's one in any place you want. Use if needed. I HOPE NOT NEEDED
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Thanks again.
Sent from my GT-N7100 using xda premium

Dear nitol. You saved my life. Thanks.

EFS Backup got deleted
nitol said:
HI Mates, there are already a lot of comments posted about efs. But I think a detail need to talk about. Here we are:
# suddenly you find that your phone is not getting the network. When you try to make a call it says: not registered with network. Problem remains even after restock.
WHY & WHEN
usually it happens while you flash(sometimes dirty) roms often and/or
Switching from AOSP to AOKP to SAMMY vice versa. .
HOW TO SOLVE
as you are flashing roms, naturally you are rooted and you have a root explorer. Roms from 4.1 and later ones automatically creats a efs back up while you flashing a new one. When you found the disturbances, with a root explorer search for the folder "efs_Backup".
The location varies from rom to rom. You may find it under sdcard, may find under /data/media or somewhere else. After you find the folder
Open it
You will find several zip files created in different dates. Those dates are your rom flashed dates.
Choose the right dated one remembering when your phone was fine.
Extract the zip.
Go to /efs
Delete entire contents of the folder.
Go to the efs zip extracted folder.
Selct all and move them to the /efs folder.
Your phone is back as normal!
CHEERS!
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Currently i'm on 4.2.1
Yesterday i flashed paranoid android and then today i flashed the Hawkish Extreme on my Note II
After flashing the network wasn't working
so i decided go and restore to my original using the backup file in cwm
after a successful flash the baseband tab was showing NO BASEBAND, basically no modem installed
Then i decided to go to the official stock 4.2.1 from 4.2.2 using odin i flashed but you need to wipe everything before downgrading
so now i dont have efs backup
Please help!!

EFS Restore
Hi,
You are gr8..After 2 days of efforts, finally my phone started working..

Efs folder backup?

Hi, I stupidly went back to stock and lost my imei number without making a efs backup, when I used aroma it asked if I wanted to make an efs backup and I said yes.
Would that backup help me in returning fully to stock rom? If so, where would that backup be stored in my phone?
Hope someone can help
Thanks a lot
Sent from my GT-N7100 using xda premium

I must add that I didnt back up on the stock rom, I was already on a custom rom, if that helps.
Many thanks
Sent from my GT-N7100 using xda premium

dazza_84 said:
Hi, I stupidly went back to stock and lost my imei number without making a efs backup, when I used aroma it asked if I wanted to make an efs backup and I said yes.
Would that backup help me in returning fully to stock rom? If so, where would that backup be stored in my phone?
Hope someone can help
Thanks a lot
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
The backup you made will be no good cause it will contain the efs of the new rom you installed.. you can check though. The efs backup will be on your sd card..
Sdcard/EFS
In efs theres folders inc imei wifi bluetooth etc
Sent from my GT-N7105 using xda premium

Do I have to be rooted to see that folder? As its not in my sd card, the only way I can see that folder is in root explorer but im not rooted at the moment.
Can I ask one more question? If I were to put stock rom back on my phone and use newer modem, my imei and network will come back, would I be able to get ota updates? Because when ive tried to search for an update, it would just hang on searching.
Sent from my GT-N7100 using xda premium

Ive had a look in the efs folder and all I have is a list of files which include nv.data.bak and nv data.bak md5? Is tjat any help? Would I need those files to restore
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dazza_84 said:
Ive had a look in the efs folder and all I have is a list of files which include nv.data.bak and nv data.bak md5? Is tjat any help? Would I need those files to restore
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Yes. Copy them to your pc under efs backup aswell for safe keeping. There are guides on here of how to restore your efs with 4.1.2 roms but you will need root.
As you have efs backup I found this for you. Make sure you read and understand before doing anything..
http://forum.xda-developers.com/showthread.php?p=37816367
Sent from my GT-N7105 using xda premium

right well I backed up my efs through efs pro, it saved as a tar.gz file now ive tried to restore the efs in efs pro but it doesn't show in the restore older?
is there anyway I can flash the tar.gz file of my efs backup somehow?
also the link u gave me was for a zip file but no instructions of how to do anything.
thanks for any help

dazza_84 said:
right well I backed up my efs through efs pro, it saved as a tar.gz file now ive tried to restore the efs in efs pro but it doesn't show in the restore older?
is there anyway I can flash the tar.gz file of my efs backup somehow?
also the link u gave me was for a zip file but no instructions of how to do anything.
thanks for any help
Click to expand...
Click to collapse
That zip file in the link is a app. Download install.. if you backed up the efs on the stock rom before flashing the new rom it will work..
The only other thing to do is flash this modem via cwm recovery.
It says it fixes the problem
http://forum.xda-developers.com/showthread.php?p=42802840
Sent from my GT-N7105 using xda premium

I think ive messed my phone up!!! ive somehow deleted everything in my efs folder.
I still have a back up from efs pro? can I use that to restore my efs? if so how??
please help, im screwed

You've backed up the new modified efs folder which is only compatible with the new firmwares. You can restore from that backup, in fact you need to, but there is no going back to old firmware now. You can achieve stock if you download and flash a stock rom of version DME6 or newer, but you can never use anything older again.
-- Sent from the mighty Note 2 --

dr.m0x said:
You've backed up the new modified efs folder which is only compatible with the new firmwares. You can restore from that backup, in fact you need to, but there is no going back to old firmware now. You can achieve stock if you download and flash a stock rom of version DME6 or newer, but you can never use anything older again.
-- Sent from the mighty Note 2 --
Click to expand...
Click to collapse
How would I go about restoring that backup from efs pro? As when I am trying to select it in the restore section of efs pro it can not be seen in drop down box?
It is in tar format, there is a pit file with it but I guess as I wiped everything out of my actual efs folder through root explorer it might not work.
Also I have a pop up on my screen with loads of different information like an error pop up? I cant screen shot it other wise I would show u
Sent from my GT-N7100 using xda premium

dazza_84 said:
How would I go about restoring that backup from efs pro? As when I am trying to select it in the restore section of efs pro it can not be seen in drop down box?
It is in tar format, there is a pit file with it but I guess as I wiped everything out of my actual efs folder through root explorer it might not work.
Also I have a pop up on my screen with loads of different information like an error pop up? I cant screen shot it other wise I would show u
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
You're in factory mode. I can't help you restore as I don't use efs pro.
-- Sent from the mighty Note 2 --

as its in tar format cant I just use that in odin to flash in pda bit? also would flashing a df1 modem help restore my efs? im so tired of this I was up until 6 in the morning trying to fix it :-0

Phone is completely messed!! Please help with efs restore

Hi, ive accidently wiped my efs files through root explorer, now my phone has no imei or serial number, im in factory mode as well.
I do have a backup of my efs in tar format which I done through efs pro, but when im trying to restore it in efs pro its not locating the file?
Ive tried numerous things to rectify this, ive flashed the tar file in odin that didnt work.
I honestly dont know what to do???
I hope someone can please help me fix this as I have no phone
Thanks very much
Sent from my GT-N7100 using xda premium

dazza_84 said:
Hi, ive accidently wiped my efs files through root explorer, now my phone has no imei or serial number, im in factory mode as well.
I do have a backup of my efs in tar format which I done through efs pro, but when im trying to restore it in efs pro its not locating the file?
Ive tried numerous things to rectify this, ive flashed the tar file in odin that didnt work.
I honestly dont know what to do???
I hope someone can please help me fix this as I have no phone
Thanks very much
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.

Thanks for reply, I got efs pro to work in the end but my phone is still ****ed it has no imei or serial number? Ive been looking for a solution all day.
Its also still in factory mode it says h/w not active and rf cal date unknown.
I also tried what u said and it says theres not enough space in the folder when I copy it? Its an efs.img file? And its 20mb in size. I swear if I get this sorted im never rooting my phone again.
Sent from my GT-N7100 using xda premium

dazza_84 said:
I also tried what u said and it says theres not enough space in the folder when I copy it? Its an efs.img file? And its 20mb in size. I swear if I get this sorted im never rooting my phone again.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
You might need to repartition the phone using a PIT file if you completely removed the folder (and not just the contents).
Reinstall your stock rom using a PIT file in ODIN and after the restoration is done try to restore your EFS again. It should work now!
Cheers!

vladeco said:
You might need to repartition the phone using a PIT file if you completely removed the folder (and not just the contents).
Reinstall your stock rom using a PIT file in ODIN and after the restoration is done try to restore your EFS again. It should work now!
Cheers!
Click to expand...
Click to collapse
I tried what u said but that didn't work, my imei is still 400000? Im not sure if I fixed my serial number though cos it was 0000000 , I changed it in root explorer and it stuck! it hasnt changed back to 000000 so now I think I just need to change my imei back but how do I do that if obviously it seems like my efs backup is corrupt as well?
Sent from my GT-N7100 using xda premium

Armazia said:
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.
Click to expand...
Click to collapse
I'm having almost the exact same problem as OP. 2 questions. When you say "copy the efs map" what do you mean by that? All the contents of my unpacked efs .tar.gz backup file? Also, what do you mean by "with the original name"? Thanks!

After restoring the rom with a pit file, did you try restoring the EFS using EFSPro? You should be able to do it just using the restore option in that app, although you should be rooted to be able to restore it.
And what do you mean by "put it back using root explorer?"
Sent from my GT-N7100

vladeco said:
After restoring the rom with a pit file, did you try restoring the EFS using EFSPro? You should be able to do it just using the restore option in that app, although you should be rooted to be able to restore it.
And what do you mean by "put it back using root explorer?"
Sent from my GT-N7100
Click to expand...
Click to collapse
Yeah after flashin a stock rom with pit file I used efs pro to restore the backup but that didnt work, I can only assume that the back up is corrupt as well? Basically I deleted everything in my efs folder so that I wiped my imei and serial number, my imei is 4000000 and serial number is 0000000, so what I done was change my serial number in root explorer from 0000000 to my actual serial number which is behind my battery, ive rebooted and flashed another stock rom since then and it hasnt changed, but my imei is still ending with 400000.
So if my backup is corrupt? I have no idea what my options are? Ive had nothing but a headache the last 2 days trying to fix it.
Many thanks
Sent from my GT-N7100 using xda premium

dazza_84 said:
Yeah after flashin a stock rom with pit file I used efs pro to restore the backup but that didnt work, I can only assume that the back up is corrupt as well? Basically I deleted everything in my efs folder so that I wiped my imei and serial number, my imei is 4000000 and serial number is 0000000, so what I done was change my serial number in root explorer from 0000000 to my actual serial number which is behind my battery, ive rebooted and flashed another stock rom since then and it hasnt changed, but my imei is still ending with 400000.
So if my backup is corrupt? I have no idea what my options are? Ive had nothing but a headache the last 2 days trying to fix it.
Many thanks
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Did you root after restoring the backup? And did you also enable USB debugging? As I recall, EFSPro requires those to work optimally. And one last thing: did you use the latest version?

I rooted before I restored on efs pro, also what do mean by using latest version? If u mean stock rom? I used DMC3-BTU, thats the only one I had on my computer at the time, I flashed that with a pit file dated 2/11/2012?? Then I rooted and tried to restore the phone but it didnt work? I then thought as the firmware was old I would put a DF1 modem on it but that still didnt work either? Am I doing something wrong? Im going out my mind trying to sort this out!
Thanks alot
Sent from my GT-N7100 using xda premium

Oh also I restored on old version of efs pro I think it was version 1.93 or summink, as that is the only version that will locate the backup file in the drop down menu?? I just tried the version in the link u gave me but still same? It recognises my phone but when I use the restore drop down bit it is blank? I try to refresh but still blank?? I think it might have something to do with the restore file not being in tar.gz format? I somehow unzipped it and now its just a tar file? I dont know how to rezip the file? Any ideas please would be great.
Thanks
Sent from my GT-N7100 using xda premium

What are the contents of the tar.gz? I mean: if you open it with winrar / 7z, etc, what do you see?
For instance, when I open my EFS tar.gz backup, I see a single file called efs.img:
If you have that as well, you could try restoring your EFS using DD by putting the EFS.img in the root of your SD card and typing the following commands on ADB Shell:
Code:
adb shell su -c "dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"

Well ive repackaged the tar file to tar.gz and now efs pro has located the file but I click restore and a pop up comes onto the screen saying *you must select one partition to restore???? I dont know what that means??
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dazza_84 said:
Well ive repackaged the tar file to tar.gz and now efs pro has located the file but I click restore and a pop up comes onto the screen saying *you must select one partition to restore???? I dont know what that means??
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Just breathe and select the checkbox on the left:

Yeah mines the same in the tar file is a efs.img file, but im so close with efs pro I just dont get what *you must select at least one partition to restore* means?
Sent from my GT-N7100 using xda premium

Theres nothing in that box to select and if u see on the right drop down box your file says device, mine says PC?
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dazza_84 said:
Theres nothing in that box to select and if u see on the right drop down box your file says device, mine says PC?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
That means where the backup is located. Mine is on my phone's memory, yours is in your PC's hard drive.

It worked!!! Cant thank you enough for helping me out, really appreciate it, thank you so much.
Sent from my GT-N7100 using xda premium

dazza_84 said:
It worked!!! Cant thank you enough for helping me out, really appreciate it, thank you so much.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Great! Happy for you, buddy! Cheers!

Armazia said:
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.
Click to expand...
Click to collapse
I had the exact same problem and couldn´t get it to work.so I tried what you described and it worked.
I got my IMEI back but i couldn´t get the phone to connect to a cellular network.
So I rebooted ion to revocery and did a "fix Permissions". it took forever but after that my phone worked lika new again.
A million thanks to you.