[Q] Samsung Sm n900 E:failed to mount /efs (Invalid argument) problem - Galaxy Note 3 Q&A, Help & Troubleshooting

Samsung sm n900 only samsung logo set not open and system recovery is show E:failed to mount /efs (Invalid argument)
i have no backup efs file please help me

Could you provide more details: what did you do, what were you attempting to do, what happens with your phone, how was your phone's status before that...

SM N900 Phone Details
vndnguyen said:
Could you provide more details: what did you do, what were you attempting to do, what happens with your phone, how was your phone's status before that...
Click to expand...
Click to collapse
My Phone Detail....
Samsung Galaxy Note 3 Model - SM-N900
Android version 4.4.2
mainly problem is (IMEI null null)
i used z3x samsung tools v17.2
and go to EFS option and write same model other set efs file..
then set is only samsung logo..

I guess you need a backup to restore to the original efs.

mhasn said:
My Phone Detail....
Samsung Galaxy Note 3 Model - SM-N900
Android version 4.4.2
mainly problem is (IMEI null null)
i used z3x samsung tools v17.2
and go to EFS option and write same model other set efs file..
then set is only samsung logo..
Click to expand...
Click to collapse
Just restore your EFS if you have backup your EFS.

service centre
Sent from my SM-N900 using XDA Premium 4 mobile app

Seeing as you are on the stock recovery, i assume your knox is not void. Also as you say you have no efs backup, looks like you will have to send it to samsung for them to write your efs/imei to the phone.
Sent from my SM-N9005 using Tapatalk

IzArsha said:
Just restore your EFS if you have backup your EFS.
Click to expand...
Click to collapse
i have no backup efs file

mhasn said:
i have no backup efs file
Click to expand...
Click to collapse
Then there are no option. Send it to service centre.

IzArsha said:
Then there are no option. Send it to service centre.
Click to expand...
Click to collapse
ok boss but if you know another solution kindly tell me
and help me...

mhasn said:
ok boss but if you know another solution kindly tell me
and help me...
Click to expand...
Click to collapse
No problem :good: btw @mhsan, can you try recovering it via adb? Just google it, some of them might wont work on our phone. but if you know how to figure it, edit the value and anything, it might work on your device. I would like to try it, but i have no time.
View this http://forum.xda-developers.com/showthread.php?t=2204960 thread for an example purposes only.

Related

SGS3 - IMEI corruption :(

Hello everyone,
I am trying to fix my IMEI on SGS3 but without success. I cannot select RMNET+DM+MODEM in hidden menu (*#7284#). On UART there is only (MODEM, PDA) and USB (MODEM, PDA).
I've even tried SGS3-Exploiter-GeeK.exe but when I select this mode nothing happend, it just goes back to MTB+ADB.
TNX
http://forum.xda-developers.com/showthread.php?p=31051731
exploit20 said:
Hello everyone,
I am trying to fix my IMEI on SGS3 but without success. I cannot select RMNET+DM+MODEM in hidden menu (*#7284#). On UART there is only (MODEM, PDA) and USB (MODEM, PDA).
I've even tried SGS3-Exploiter-GeeK.exe but when I select this mode nothing happend, it just goes back to MTB+ADB.
TNX
Click to expand...
Click to collapse
try using HC-kTools app from play store...
Dehaani thank you but I know already for that thread... I cannot enter that diag mode... :/
and don't have backup to restore using hc-ktool
dehaani said:
http://forum.xda-developers.com/showthread.php?p=31051731
Click to expand...
Click to collapse
exploit20 said:
Hello everyone,
I am trying to fix my IMEI on SGS3 but without success. I cannot select RMNET+DM+MODEM in hidden menu (*#7284#). On UART there is only (MODEM, PDA) and USB (MODEM, PDA).
I've even tried SGS3-Exploiter-GeeK.exe but when I select this mode nothing happend, it just goes back to MTB+ADB.
TNX
Click to expand...
Click to collapse
Are you using International or US Galaxy S3 ?
Methods using Diag mode and software like SGS3-Exploiter-GeeK or QPST (Qualcomm Product Support Tools) are made to work ONLY with the United States variant of Galaxy S3 (based on Qualcomm SoC).
Now, I don't know software to fix International SGS3 without EFS folder backup (Sorry :crying: ) when nv_data.bin and .nv_data.bak are broken.
lelinuxien52 said:
Are you using International or US Galaxy S3 ?
Methods using Diag mode and software like SGS3-Exploiter-GeeK or QPST (Qualcomm Product Support Tools) are made to work ONLY with the United States variant of Galaxy S3 (based on Qualcomm SoC).
Now, I don't know software to fix International SGS3 without EFS folder backup (Sorry :crying: ) when nv_data.bin and .nv_data.bak are broken.
Click to expand...
Click to collapse
I had this problem on my S£ (international) a while back. It happened after flashing cm10, I had a generic IMEI code. I f'd around with it a bit using root explorer and the EFS folder and the .bak files but this did not work.
I tried ktools etc. nothing seemed to work..
oddly enough, i got it back by flashing back to the stock ics rom via Odin, since then my IMEI has been fine after flashing JB roms.
worth a try!
@lozfromcorby : I just saying they have not software to do that now on I9300. But I'm agree with you ! Sometimes, we can recover wrong IMEI when flahsing stock ROM.
Yep it's international ((
Ok I will try to flash stock rom again :/ I will post result here....
TNX
lelinuxien52 said:
Are you using International or US Galaxy S3 ?
Methods using Diag mode and software like SGS3-Exploiter-GeeK or QPST (Qualcomm Product Support Tools) are made to work ONLY with the United States variant of Galaxy S3 (based on Qualcomm SoC).
Now, I don't know software to fix International SGS3 without EFS folder backup (Sorry :crying: ) when nv_data.bin and .nv_data.bak are broken.
Click to expand...
Click to collapse
IMEI is still corrupted after going back to stock ROM
I've tried with my friend Z3X box to repair IMEI but without success ...
exploit20 said:
IMEI is still corrupted after going back to stock ROM
I've tried with my friend Z3X box to repair IMEI but without success ...
Click to expand...
Click to collapse
Why do you care anyway when your device is working? You corrupted it so deal with it.
Sent from my GT-I9300 using xda app-developers app
exploit20 said:
IMEI is still corrupted after going back to stock ROM
I've tried with my friend Z3X box to repair IMEI but without success ...
Click to expand...
Click to collapse
I have seen that the Z3X box can fix all Samsung Galaxy devices excepted SGS3 !
I think you need send your phone to repair center.
But before, you can try this :
Save remaining files contain on your EFS folder. For that, use EFS Tool Pro for example :
http://forum.xda-developers.com/showthread.php?t=1308546
Try this tutorial (with a full official stock firmware/kernel | Flash it with ODIN before trying repair) :
http://forum.xda-developers.com/showthread.php?t=1264021
Caution : DO IT ON YOUR OWN RISK.
If it doesn't work, you must :
- reset binary counter (with Chainfire tool : Triangleaway)
- perform total wipe data / wipe cache (from recovery mode)
- flash the latest stock firmware corresponding to your region
- verify the phone status : must be "Normal" and not "Modify".
Device is working... but no network thats why ((
Jack Barrett said:
Why do you care anyway when your device is working? You corrupted it so deal with it.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thank you, it seems thats the only thing I can do right now :/
lelinuxien52 said:
I have seen that the Z3X box can fix all Samsung Galaxy devices excepted SGS3 !
I think you need send your phone to repair center.
But before, you can try this :
Save remaining files contain on your EFS folder. For that, use EFS Tool Pro for example :
http://forum.xda-developers.com/showthread.php?t=1308546
Try this tutorial (with a full official stock firmware/kernel | Flash it with ODIN before trying repair) :
http://forum.xda-developers.com/showthread.php?t=1264021
Caution : DO IT ON YOUR OWN RISK.
If it doesn't work, you must :
- reset binary counter (with Chainfire tool : Triangleaway)
- perform total wipe data / wipe cache (from recovery mode)
- flash the latest stock firmware corresponding to your region
- verify the phone status : must be "Normal" and not "Modify".
Click to expand...
Click to collapse
I had the same problem tried different ways but no luck so I have sent off to Samsung been 2 weeks now, luckily for me a service centre isn't that far from me so I didn't have to pay postage
Sent from my HTC Desire S using xda premium
I might be able to help you. Pm me your efs backup + partition backup made with efs pro. If the information is still present I should be able to recover it.
@can't see who in tapatalk
Could you tell me which ics stock room version helped you recovering your imei?
Sent from my GT-I9300 using xda app-developers app
I have a temporary solution for you. if you still have the backup of the the EFS folder in your internal or external sd card than follow the following steps,
1. copy ALL the files from the EFS BACKUP FOLDER.
2. go to the root of your your phone with root explorer of ES file explorer and find the folder EFS. it should be with all the system folders like acct, config,data,dev,efs,etc so on and on.
3. now paste all the copied files in to EFS folder. tap on REPLACE THE FILES if ASKED...
4. close the app. and go to the home screen and wait for few seconds.
if your simcard have pin than it will ask the pin after few seconds and if it doesnt have any pin than it will just get the network.
good things is you have your IMEI number restored and can use the phone like regularly. NO PROBLEMS AT ALL. WITH NETWORK.
bad thing is NEVER LET YOUR PHONE SWITCH OFF. If it will switch off than you will have to follow all the steps again... annoying but works... let me know the progress buddy... best of luck...
Your other option is to to flash the stock rom but not let it finish. You will get a loop screen. Then just send it off for repair saying it doesn't turn on.. It will be diagnosed as a broken bootloader and fixed and the imei number will be back to the original. This happened with my old s1
Sent from my GT-I9300 using Tapatalk 2
No, I don't have a backup of the EFS folder I will try to send EFS folder to Spocky12 and hope that he can recover information...
Chaitanyapatel8880 said:
I have a temporary solution for you. if you still have the backup of the the EFS folder in your internal or external sd card than follow the following steps,
1. copy ALL the files from the EFS BACKUP FOLDER.
2. go to the root of your your phone with root explorer of ES file explorer and find the folder EFS. it should be with all the system folders like acct, config,data,dev,efs,etc so on and on.
3. now paste all the copied files in to EFS folder. tap on REPLACE THE FILES if ASKED...
4. close the app. and go to the home screen and wait for few seconds.
if your simcard have pin than it will ask the pin after few seconds and if it doesnt have any pin than it will just get the network.
good things is you have your IMEI number restored and can use the phone like regularly. NO PROBLEMS AT ALL. WITH NETWORK.
bad thing is NEVER LET YOUR PHONE SWITCH OFF. If it will switch off than you will have to follow all the steps again... annoying but works... let me know the progress buddy... best of luck...
Click to expand...
Click to collapse
Sorry buddy... I hope you will recover it...
exactly the reason i stopped messing around with my s3 :| i had screwed up my s2 like this and all the efs backups were corrupt too -_- hope you get your s3 fixed man.

[Q] I9505 Lost IMEI, EFS Folders, etc.

i have z3x box.
when trying to repair imei
make *#9090# and select RM DUM OVER MODEM (4 or 5) (Now service mode, Just Black Screen)
after phone restart and Clear EFS Folder.
Now, Phone NO Network. No Read SIM CARD
What do I do now
ufukkoktas said:
i have z3x box.
when trying to repair imei
make *#9090# and select RM DUM OVER MODEM (4 or 5) (Now service mode, Just Black Screen)
after phone restart and Clear EFS Folder.
Now, Phone NO Network. No Read SIM CARD
What do I do now
Click to expand...
Click to collapse
I would say restore via Odin.
Sent from my SGH-M919 using xda premium
tino_b said:
I would say restore via Odin.
Sent from my SGH-M919 using xda premium
Click to expand...
Click to collapse
I Try new firmware flashed 3 time.. but not solution
Phone completely clear EFS folder. dont have Backup.
Did you fix it i have the same problem?
ufukkoktas said:
i have z3x box.
when trying to repair imei
make *#9090# and select RM DUM OVER MODEM (4 or 5) (Now service mode, Just Black Screen)
after phone restart and Clear EFS Folder.
Now, Phone NO Network. No Read SIM CARD
What do I do now
Click to expand...
Click to collapse
Hi mate do you know how to get out of service mode?
Well in here we are only a few box owners, I do not have z3x,I only have spt, asansam and riff, but if I where you I would head over to gsmhosting to the official product section
Sendt fra min GT-I9505 med Tapatalk2
jay7862 said:
Hi mate do you know how to get out of service mode?
Click to expand...
Click to collapse
Have you tried with a sat stock rom? In SGS flashing a stock rom imei came back.
If you decide it and don´t find the files, send me a mp
Luck
jatar said:
Have you tried with a sat stock rom? In SGS flashing a stock rom imei came back.
If you decide it and don´t find the files, send me a mp
Luck
Click to expand...
Click to collapse
hi , need efs files for i9505 for efs pro , imei lost and efs folder clear , can any body send efs from one good phone hier on forum ?
sen_igor said:
hi , need efs files for i9505 for efs pro , imei lost and efs folder clear , can any body send efs from one good phone hier on forum ?
Click to expand...
Click to collapse
Dont think that will work.each phone has his own imei.
Hate to say this but if u dont have ur imei backed upped i think ur screwed.
Sent from my GT-I9505 using XDA Premium HD app
flash stock rom and do reset / factory reset to make it back to official roms to get back warranty, then send it to Samsung service centre.They will get ur imei as normal..
it done less than an hour..
Discussion of changing IMEI methods are not allowed as its illegal in most countries.
If you didn't read the giudes and didn't backup before messing with your phone then tough, should have read them in the first place and you won't find help on IMEI changing on here.
Thread closed.

[Q] IMEI null/null, baseband unknown, no EFS backup

Hello everyone;
I flashed BAM-Android on my Galaxy S4 i9505 yesterday (first flash) and the network was working very poorly, every 2 min I would lose the signal.
Therefore I flashed other AOSP and Custom roms, flashed other modems to test better options and this morning I noticed my IMEI was null/null and my baseband was "unknown".
I tried flashing a stock samsung rom twice but it didn't change either. I bought my phone on ebay so no warranty at all. I don't have a backup of my EFS partition.
After browsing through forums I didn't find any solution... Do you guys have any other idea ? Or have a efs.img in stock so I can flash it in my phone ?
Thanks a lot !
You cant flash other phones's imei on ur phone.No other option than service centre
Sent from my GT-I9500 using XDA Premium 4 mobile app
RISHI RAJ said:
You cant flash other phones's imei on ur phone.No other option than service centre
Sent from my GT-I9500 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Don't you have IMEI written on your box or receipt?
Using other phones's IMEI is kind of identity theft
Go to the service center ... :good:
slappyx said:
Hello everyone;
I flashed BAM-Android on my Galaxy S4 i9505 yesterday (first flash) and the network was working very poorly, every 2 min I would lose the signal.
Therefore I flashed other AOSP and Custom roms, flashed other modems to test better options and this morning I noticed my IMEI was null/null and my baseband was "unknown".
I tried flashing a stock samsung rom twice but it didn't change either. I bought my phone on ebay so no warranty at all. I don't have a backup of my EFS partition.
After browsing through forums I didn't find any solution... Do you guys have any other idea ? Or have a efs.img in stock so I can flash it in my phone ?
Thanks a lot !
Click to expand...
Click to collapse
Can you access /efs through root explorer?
fran41 said:
Can you access /efs through root explorer?
Click to expand...
Click to collapse
Yes it's empty.
slappyx said:
Yes it's empty.
Click to expand...
Click to collapse
If you go to recovery it says can't mount /efs? or can you mount it
I can but nothing is shown on the computer any other suggestion?
Go to service center. Cant do anything. Or you could grab someones IMEI and null theirs. Having 2 phones with same IMEI is illegal and your carrier might penalize you.
slappyx said:
I can but nothing is shown on the computer any other suggestion?
Click to expand...
Click to collapse
really? it's strange you've lost all /efs.
try in terminal:
su
mount
post here what it gives and let's see if /efs is mounted
fran41 said:
really? it's strange you've lost all /efs.
try in terminal:
su
mount
post here what it gives and let's see if /efs is mounted
Click to expand...
Click to collapse
My old Galaxy S2 has an EFS backup on it... I'm quite new to IMEI/EFS issues, is it device linked or can I flash my Galaxy S2 EFS into my new S4 ? If yes how to flash it via img/tar ? Odin ?
@fran41 : thanks I'll try tomorrow !
slappyx said:
My old Galaxy S2 has an EFS backup on it... I'm quite new to IMEI/EFS issues, is it device linked or can I flash my Galaxy S2 EFS into my new S4 ? If yes how to flash it via img/tar ? Odin ?
@fran41 : thanks I'll try tomorrow !
Click to expand...
Click to collapse
No that won't work. Each phone has different partition structures. Efs is not the same in S2 as in S4. Btw you can't use efs from one S4 on another S4. Efs is unique for each phone (IMEI, wifi mac, serial number...)

[Fixed by claiming warranty] Note 2 N7100 EFS partition corrupt :(

Well something went really wrong and i have a corrupt IMEI/EFS partition.
so i followed this and this threads to restore my EFS partition.
But for some reason, my IMEI number / EFS partition is not being restored. Also my mobile network (not able to make and receive calls/ no mobile data) is not working.
Please help ASAP My N7100 is still under warranty but i tripped the knox counter.
Also i am able to go into bootloader mode but odin is not recognizing the device. I installed kies and it is updated.
edit - flashed official stock rom via mobile odin so that i can take it to samsung service centre. But as a last resort, still searching for methods to restore efs.
If anybody still has any suggestions or help, please please comment here.
Thank you vry much,..
A_U said:
Well something went really wrong and i have a corrupt IMEI/EFS partition.
so i followed this and this threads to restore my EFS partition.
But for some reason, my IMEI number / EFS partition is not being restored. Also my mobile network (not able to make and receive calls/ no mobile data) is not working.
Please help ASAP My N7100 is still under warranty but i tripped the knox counter.
Also i am able to go into bootloader mode but odin is not recognizing the device. I installed kies and it is updated.
Click to expand...
Click to collapse
Try this http://forum.xda-developers.com/showthread.php?t=2088809
Sent from my GT-N7100 using xda app-developers app
or try efs tool restore found here
put efs.img inside folder, open command prompt in the folder (shift + right button of mouse) and choose efs restore
cosmyndemeter said:
or try efs tool restore found here
put efs.img inside folder, open command prompt in the folder (shift + right button of mouse) and choose efs restore
Click to expand...
Click to collapse
i tried this tool but its not working..
the tool shows that there is some data transfer, but nothing is happening in my phone.
just to confirm..how much is the size of a properly working efs.img file ?
mine is around 20,048 Kb
It's 20 mb the image, besides I doubt that you can do anything without a XwZ BOX,which will cost you over $100 so my advice is that you take it to a dealer for a repair , that's if you don't have an EFS back up, however I'm not sure if the things are easier if you have a back up either, since it didn't work for me.
hagba said:
It's 20 mb the image, besides I doubt that you can do anything without a XwZ BOX,which will cost you over $100 so my advice is that you take it to a dealer for a repair , that's if you don't have an EFS back up, however I'm not sure if the things are easier if you have a back up either, since it didn't work for me.
Click to expand...
Click to collapse
wats a XwZ BOX ?
and i do have a backup..but for some reason i tried all the tools listed in this forum and none of the methods are working..
will the dealers be able to fix this issue ?
i live in india..how much will it cost to fix this mess ?
A_U said:
i tried this tool but its not working..
the tool shows that there is some data transfer, but nothing is happening in my phone.
just to confirm..how much is the size of a properly working efs.img file ?
mine is around 20,048 Kb
Click to expand...
Click to collapse
Just a question... How did you make the efs backup you have? Size should be correct
If you remember how did you make backup, it'd be easier...
Have you got just a backup? The file you're using could be a corrupted file...
A_U said:
edit - flashed official stock rom via mobile odin so that i can take it to samsung service centre. But as a last resort, still searching for methods to restore efs.
If anybody still has any suggestions or help, please please comment here.
Thank you vry much,..
Click to expand...
Click to collapse
Can you enter in download mode and flash via odin? I can send you .pit file and try repartiton and flash stock rom...
Sent from my GT-N7100 using xda app-developers app
A_U said:
wats a XwZ BOX ?
and i do have a backup..but for some reason i tried all the tools listed in this forum and none of the methods are working..
will the dealers be able to fix this issue ?
i live in india..how much will it cost to fix this mess ?
Click to expand...
Click to collapse
Yes the dealers can fix it, will cost somewhere between $30 To $40,at least that's the way the things are where I live. That is why I'm gonna keep my Note II on 4.1.2 until it dies away and will get THIS biggi and forget about Samsung alltogether,I have learned my lesson the hard way..
http://consumer.huawei.com/en/tablets/gallery/7d-501l-en.htm
A_U said:
Well something went really wrong and i have a corrupt IMEI/EFS partition.
Click to expand...
Click to collapse
dit you fixed your phone?
if no, just try this efs_fix and report
flash from recovery
I claimed the warranty..service centre guys fixed it for free.
They replaced the motherboard..costs around 9000 rupees in india without warranty
And guess wat ! They even reset my knox counter
My note 2 is now like a brand new device.
But thanks a lot guys; for all the help u provided in this thread...appreciated .
A_U said:
I claimed the warranty..service centre guys fixed it for free.
They replaced the motherboard..costs around 9000 rupees in india without warranty
And guess wat ! They even reset my knox counter
My note 2 is now like a brand new device.
But thanks a lot guys; for all the help u provided in this thread...appreciated .
Click to expand...
Click to collapse
i'm glad to hear that... :good:
zygzoo said:
dit you fixed your phone?
If no, just try this efs_fix and report
flash from recovery
Click to expand...
Click to collapse
u r the man thanks i have been working on 4 a week
thanks thanks thanks
my note 2 was dead on Samsung logo after i have update your zip it open but every one should be a wear cuz it is a Dummy version any one should not use it if he don't have a efs backup to restore

Unknown BaseBand And imei null

here i received a g900h from a customer with unknown baseband and imei null after wipe.
i flashed device and upgrade it to 5.0.2 but still has problem .
please F1.
thnx
Unless they backed up their EFS partition, it's dead
Heard people saying they backed up a different S5 EFS partition, then restore it on the dead S5
http://forum.xda-developers.com/showthread.php?t=2737448
please F1
i confused , please someone help me.
here i have a g900h with unknown baseband and null imei .
i upgrade it to 5.0.2 then downgrade it again to 4.4.2.
but still is damaged baseband and imei.
device is now rooted and i installed busybox and terminal emulator for restore a efs.
please
please
help
i google every day , today i found a solution in z3x forum but no one was shared it was solved or not.
Enter debugging mode on your Samsung galaxy
>Connect your Device to the PC
>Download the EFS Restorer Express
>Open The folder and double-click the EFS-BACKUP. BAT file
>On the screen provided, select a method to restore the EFS via ODIN
>Finish
i need a good efs backup for g900h
please back up and share
miladcpu said:
Enter debugging mode on your Samsung galaxy
>Connect your Device to the PC
>Download the EFS Restorer Express
>Open The folder and double-click the EFS-BACKUP. BAT file
>On the screen provided, select a method to restore the EFS via ODIN
>Finish
i need a good efs backup for g900h
please back up and share
Click to expand...
Click to collapse
Noone with any sense will share their EFS backup, it is unique to their phone, and sharing it could get their phone blocked by the carrier
*Detection* said:
Noone with any sense will share their EFS backup, it is unique to their phone, and sharing it could get their phone blocked by the carrier
Click to expand...
Click to collapse
i'm in iran so don't worry about your carrier.
miladcpu said:
i'm in iran so don't worry about your carrier.
Click to expand...
Click to collapse
Don't care where you are, if your phone has my IMEI, and your phone gets blocked for whatever reason, mine does too
Read EFS threads, do you see anyone sharing their EFS partition?
Nope. And that's why
Would you give me your MAC address and IP address so I can download illegal files?
I don't want anyone else having my specific phone ID
*Detection* said:
Don't care where you are, if your phone has my IMEI, and your phone gets blocked for whatever reason, mine does too
Read EFS threads, do you see anyone sharing their EFS partition?
Nope. And that's why
Would you give me your MAC address and IP address so I can download illegal files?
I don't want anyone else having my specific phone ID
Click to expand...
Click to collapse
first i have to thanks to you for your replies and kindly help.
so what should i do now?
miladcpu said:
first i have to thanks to you for your replies and kindly help.
so what should i do now?
Click to expand...
Click to collapse
Either find another S5 to backup and restore from, a trusting friend or family member - or take your phone to a store to get fixed
Then backup your EFS partition

Categories

Resources