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I bought my S6 with this error. I tried to flash it many times with Odin and many different roms, but after turning on my device it got stuck at the Samsung Galxy S6 powerd by Android screen. I then tried to Boot into the stock recovery and it shows e: failed to Mount /efs (invalid argument).
I then tried many diffent roms, but still the same Problem. Then i tried to flash a custom Rom (ozop) with twrp, but it showed "-mounting /system (or somethig simmilar)". I looked up on the Internet and found a fix witch needed root. So i tried to get root premmisson with supersu and Cf auto root, but it didn't work. In ADB shell it just shows "/ su not found in /sbin". Has anyone got a solution for this. Please help me.
Thanks in advance
Sony_xperia_fan
tried Smart Switch emergency initialization with phone sn?
brenner650 said:
tried Smart Switch emergency initialization with phone sn?
Click to expand...
Click to collapse
Yes but it just installed the stock Rom wich wouldn't Boot
hi same problem, have u sove it ?
Hello there guys. i have an "E: failed to mount /efs (invalid argument)" problem to my s7 G930F Exynos.
The phone is NOT rooted. Had NOT activated OEM unlock or USB debbuging.
I tried to flash the stock rom and i succeeded but the problem is still there.
I dled and flash the G930F_FD_Factory_Binary and i succeeded but the problem is still there.
I tried to flash a custom recovery like TWRP but Odin fails every time on both stock rom and Factory Binary (i guess the lack of OEM unlock or USB debbuging causing that).
I managed to access ADB command while on Factory Binary only but still didn't manage anything at all.
I cannt do a factory/wipe reset cause of the "E: failed to mount /efs (invalid argument)" problem.
I am out of ideas. I sent the phone to Samsung Service but cause of a small damage in the down right corner they ask me 250 euros to fix the damage and the /efs problem. They told me that they cannot fix the /efs problem alone.... Why ? Do not ask me.. It's their procedure
So... i need your help :/
I had this problem also on my samsung tablet and seems that i got it fixed by fxing it from the twrp recovery. There is a option in the settings to fix permissions and guess this is the problem you are having it also. It cant be mounted because it has no rights.
RiTCHiE007 said:
I had this problem also on my samsung tablet and seems that i got it fixed by fxing it from the twrp recovery. There is a option in the settings to fix permissions and guess this is the problem you are having it also. It cant be mounted because it has no rights.
Click to expand...
Click to collapse
i cannt install TWRP
soulremover said:
I cannt do a factory/wipe reset cause of the "E: failed to mount /efs (invalid argument)" problem.
Click to expand...
Click to collapse
Can you do a factory reset from the stock recovery? It may be worth a try, but I think it won't help.
Likely, the EFS partition got corrupted for some reason. And as far as I know, this isn't easily fixable. This partition contains the IMEI and other information, and is encrypted + secured by certificates. One can't just copy the EFS from another phone.
Maybe the Samsung service is the only option .
Or try to root it so you have system access and then you can see if you can get to the efs folder and then try the permissions. But its weird that you get this by just flashing stock with odin. Only thing i would do is use kies to revert back to stock rom and see what happens
I'm having the same problem
I'm having the same problem, have you solved it yet?
Thx!
same problem here. can't load in TWRP and don't know how to root form recovery screen? The load screen is block by custom load. FRP locked
Can you use adb ?
SrKag said:
can't load in TWRP and don't know how to root form recovery screen? The load screen is block by custom load. FRP locked
Click to expand...
Click to collapse
If flashing the stock ROM (maybe try different versions) and doing a factory reset doesn't solve it, send it in for warranty.
Don't try flashing TWRP or rooting - it won't work if you didn't enable OEM unlocking (= disable the FRP) in the developer options before. With FRP enabled, the device runs only stock software.
And as I stated before: Even if you would have full access to the phone's memory (via a debug interface of the CPU) and therefore could flash whatever you want, there is no known way to repair the EFS. It is encrypted and device specific to prevent "bad guys" from changing the IMEI.
But still, I find it really bad that flashing stock firmware via Odin can damage the EFS partition.
Yea try to flash a stockrom with the samsung KIES tool and if that doesn't work then send it back.
Nothing will work I no I had the efs problem can u use adb?
Sent from my Samsung Galaxy S7 using XDA Labs
Hi I hope you can help......I have this ERROR & I tried several ways to fix it Running the EFS Professional.exe as Administrator.....& it keeps telling me I don't have enough storage & I deleted a bunch of apps & data from phone /sd but I keep getting this error unable to back up certain partitions
dd:writing'/sdcarrd efsprobackup/temp/userdata no space left on device
887462+0records in
887461+0records out
363504025 btes (3.4gb) copied,94,239635 seconds,36.8 MB/s
exitcode=1
now I tried odin method & it says invalid binary,......plz assist.......I tried flashing firmware N910TUVS2EQB1_N910TTMB2EQB1_N910TU VS2EQB1_HOME.tar.md5 bl/cp but it didn't work
Same issue here. My phone entered a bootloop after an OTA update about a month ago. It was 100% stock, not rooted, not even OEM unlocked i was just using it as is.
It goes in download mode , goes in recovery also. In recovery is giving the following error >
No Support SINGLE-SKU
Supported API: 3
E: failed to mount /efs (Invalid argument)
E: failed to mount /efs (Invalid argument)
E: failed to mount /efs (Invalid argument)
dm-verity error
I tried sending it for warranty ... they refused - it has marks of falling, but no cracks or damage 100% perfect condition.
Then I tried using KIES recovery , goes 100% , phone restarts ... same, bootloop, and same error in recovery.
Same thing with SmartSwitch.
Same thing with Odin.
never rooted, not even developer options enabled ... used it "as is" and just "OK"-ed the OTA updates when they arrived ... only issue i ever had was a few days before the bootloop , i tried to take a picture, the screen went black and no response from the device ... my pictures were saved by default to the SD Card (class 10, Adata), so i powered it off - vol up + power + home , the phone booted, then i switched it off, and took the sd card out and no issues for 2 days, then the OTA update (already was at 7.0) which was a small one ~300mb ... installed, the phone worked till the next morning and the screen froze while i was using Gmaps ... powered it off as before ... and the bootloop was evident
ODIN MODE
DOWNLOAD SPEED: FAST
PRODUCT: SM-G930F
CURRENT status: Custom
FRP LOCK: ON
Secure Download : Enabled
WARRANTY VOID: 0(0x0000)
RP SWREV: B:1 K:0 S:0
Recovery >
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Flashing COMBINATION ROM does go 100% , but still bootloop
_____________________________________
Can not send for warranty - has marks of falling , the service shop refused warranty - 3 repair shops gave up and said they don't know how to repair the device. Can not load custom recovery FRP is ON, KIES and SMARTSWITCH emergency firmware recovery goes 100% , again bootloop.
thehost said:
Same issue here. My phone entered a bootloop after an OTA update about a month ago. It was 100% stock, not rooted, not even OEM unlocked i was just using it as is.
It goes in download mode , goes in recovery also. In recovery is giving the following error >
No Support SINGLE-SKU
Supported API: 3
E: failed to mount /efs (Invalid argument)
E: failed to mount /efs (Invalid argument)
E: failed to mount /efs (Invalid argument)
dm-verity error
I tried sending it for warranty ... they refused - it has marks of falling, but no cracks or damage 100% perfect condition.
Then I tried using KIES recovery , goes 100% , phone restarts ... same, bootloop, and same error in recovery.
Same thing with SmartSwitch.
Same thing with Odin.
never rooted, not even developer options enabled ... used it "as is" and just "OK"-ed the OTA updates when they arrived ... only issue i ever had was a few days before the bootloop , i tried to take a picture, the screen went black and no response from the device ... my pictures were saved by default to the SD Card (class 10, Adata), so i powered it off - vol up + power + home , the phone booted, then i switched it off, and took the sd card out and no issues for 2 days, then the OTA update (already was at 7.0) which was a small one ~300mb ... installed, the phone worked till the next morning and the screen froze while i was using Gmaps ... powered it off as before ... and the bootloop was evident
ODIN MODE
DOWNLOAD SPEED: FAST
PRODUCT: SM-G930F
CURRENT status: Custom
FRP LOCK: ON
Secure Download : Enabled
WARRANTY VOID: 0(0x0000)
RP SWREV: B:1 K:0 S:0
Recovery >
Flashing COMBINATION ROM does go 100% , but still bootloop
_____________________________________
Can not send for warranty - has marks of falling , the service shop refused warranty - 3 repair shops gave up and said they don't know how to repair the device. Can not load custom recovery FRP is ON, KIES and SMARTSWITCH emergency firmware recovery goes 100% , again bootloop.
Click to expand...
Click to collapse
hi
Unfortunately, your device's efs partition has been compromised.
Try to write a rom of 4files on the phone if it does not answer, you need to restore the efs file on your phone
This is a backup of my s7 g930f efs.
http://efs.firmware.ir/g930fds/
If you use this efs file, your device will be changed or deleted imei number.
Try to solve with a combination or other ways. If you do not solve your problem, you can use the efs placed
good luck
asgharSo said:
hi
Unfortunately, your device's efs partition has been compromised.
Try to write a rom of 4files on the phone if it does not answer, you need to restore the efs file on your phone
This is a backup of my s7 g930f efs.
.................................................................................................
If you use this efs file, your device will be changed or deleted imei number.
Try to solve with a combination or other ways. If you do not solve your problem, you can use the efs placed
good luck
Click to expand...
Click to collapse
what do you mean write a rom ? i don't understand ... please elaborate ... i downloaded your backup but you say i need TWRP to use it, right ? or it should be flashed with Odin ?
thehost said:
what do you mean write a rom ? i don't understand ... please elaborate ... i downloaded your backup but you say i need TWRP to use it, right ? or it should be flashed with Odin ?
Click to expand...
Click to collapse
For your flash you should use this ROM.
And you need twrp to restore the efs file.
Requirements and how to use efs in the posted efs post.
I tried the rom you posted, no effect, then tried TWRP ... FRP ON blocks the install ? can not install it
hi . . how to fix sm-n935f note 7 fe .. failed to mount efs , failed to find misc partition . . rmm state : prenormal .. stuck at boot logo .. any solution to fix it ?
i am also having same problem. I am unable to resolve the issue. i had tried all the solutions, which are posted here nothing worked. At last i gave in service center, to flash the stock rom. The mentioned it can't be done and there is a problem with board. Board has to replaced.
Kindly suggest the solution for it. Thanks in advance.:fingers-crossed::laugh:
maybe try this:
https://forum.xda-developers.com/ga...covery-official-twrp-herolte-t3333770/page125
Help! I cannot use my phone because while updating to OERO it failed saying :
An error has occurred during update and you have to use emergency firmware recovery on smart switch PC software but smartswitch says it is unsupported device. I have access in download mode but cannot accomplish anything because;
1). Odin fails every time ( gets stuck while flashing system.img (AP)
2). My phone cannot find /system. I have tried restoring my phone to stock, but Odin fails.
The bottom of my recover screen says "dm-verity verification failed ... " And "E: failed to mount /system (Invalid argument)".
Any help or guidance is greatly appreciated.
Thanks.
Mr.Januzi said:
Help! I cannot use my phone because while updating to OERO it failed saying :
An error has occurred during update and you have to use emergency firmware recovery on smart switch PC software but smartswitch says it is unsupported device. I have access in download mode but cannot accomplish anything because;
1). Odin fails every time ( gets stuck while flashing system.img (AP)
2). My phone cannot find /system. I have tried restoring my phone to stock, but Odin fails.
The bottom of my recover screen says "dm-verity verification failed ... " And "E: failed to mount /system (Invalid argument)".
Any help or guidance is greatly appreciated.
Thanks.
Click to expand...
Click to collapse
May be encrypted. Did you installed any TWRP and custom ROM?
zSyntex said:
May be encrypted. Did you installed any TWRP and custom ROM?
Click to expand...
Click to collapse
not rooted, no custom recovery, but while updating to oreo, now in recovery it says system status : custom
Mr.Januzi said:
not rooted, no custom recovery, but while updating to oreo, now in recovery it says system status : custom
Click to expand...
Click to collapse
Are you using ODIN 3.13.1 ?
*Detection* said:
Are you using ODIN 3.13.1 ?
Click to expand...
Click to collapse
I am in swtizerland with CSC VFG and wanted to flash oreo from UK BTU. I flashed it via odin 3.13.1. and couldn't boot into system only into recovery in which i get the message :
No support SINGLE-SKU
Supported API: 3
Dm-verify error…
E:failed to mount /system (invalid argument)
I can see that in recovery I still have the firmware from switzerland G930FXXS2RC3 instead of UK G930FXXU2ERD5.
In download mode I can see Secure download: enabled and FRP lock : ON, I also remember that i didn't toggle the OEM unlock since flashing official firmware you don't need to be OEM unlocked.
This work for me:
Download BTU Oreo stock files.
Download Odin 3.13...
Change AP file format from *.md5 to *.tar
Flash only APxxx.tar file
Wait to reboot
Enjoy
Hope it work. Good luck!
I was on Oreo BTU Stock and try rooting flashing tarp and when boot on TWRP there was lost data partition. I wasn't able to flash anything via twrp and Odin just reboot the phone. Then I did those steps and and boot normally and everything ok, no data loss.
j0shyc0re said:
This work for me:
Download BTU Oreo stock files.
Download Odin 3.13...
Change AP file format from *.md5 to *.tar
Flash only APxxx.tar file
Wait to reboot
Enjoy
Hope it work. Good
Click to expand...
Click to collapse
Nope, it isn't working :/ I only renamed the AP file .md5 to .tar is that correct ?
Mr.Januzi said:
Nope, it isn't working :/ I only renamed the AP file .md5 to .tar is that correct ?
Click to expand...
Click to collapse
That's what i did.
have the same issue hear odin keeps failing flash and in recovery it states the same as you did you come across a fix ??
[email protected] said:
have the same issue hear odin keeps failing flash and in recovery it states the same as you did you come across a fix ??
Click to expand...
Click to collapse
Hello bro.
I did not come around any fix for that, I had to take it to a repair shop and they fixed it for 40 euros.
While searching on internetil I found some guys who said that they could repair it via Teamviewer from their shop but also had to be paid 35 dollars.
After a while, I found a program which is called ; Octopus Box Samsung which seems to repair NVM, write firmware on samsung phones. I haven't tried it but I'm sure it would work if you do a little research on it and watching tutorials on how to use the app.
Best of luck, and let me know if you come to a fix.
Edit: apparently you need this program and a Samsung Micro UART cable with 530k resistor in irder to work.
Mr.Januzi said:
Hello bro.
I did not come around any fix for that, I had to take it to a repair shop and they fixed it for 40 euros.
While searching on internetil I found some guys who said that they could repair it via Teamviewer from their shop but also had to be paid 35 dollars.
After a while, I found a program which is called ; Octopus Box Samsung which seems to repair NVM, write firmware on samsung phones. I haven't tried it but I'm sure it would work if you do a little research on it and watching tutorials on how to use the app.
Best of luck, and let me know if you come to a fix.
Edit: apparently you need this program and a Samsung Micro UART cable with 530k resistor in irder to work.
Click to expand...
Click to collapse
i see its tricky situation that i have never faced and need to fix my phone.. what is NVM ? i do not have Octopus Box but i do have Z3X box but and uart cables dont see that option at anywhere what is NVM what does it do and can you tell me where u seen this post ?
[email protected] said:
have the same issue hear odin keeps failing flash and in recovery it states the same as you did you come across a fix ??
Click to expand...
Click to collapse
[email protected] said:
i see its tricky situation that i have never faced and need to fix my phone.. what is NVM ? i do not have Octopus Box but i do have Z3X box but and uart cables dont see that option at anywhere what is NVM what does it do and can you tell me where u seen this post ?
Click to expand...
Click to collapse
NVM is the memory of the phone on which your firmware operates. I never used the octopus box but I read for it on google.and watched som.youtube videos on which they repair NVM through the octopus box. I never heard about z3x box but I assume it does the same function.
Mr.Januzi said:
Help! I cannot use my phone because while updating to OERO it failed saying :
An error has occurred during update and you have to use emergency firmware recovery on smart switch PC software but smartswitch says it is unsupported device. I have access in download mode but cannot accomplish anything because;
1). Odin fails every time ( gets stuck while flashing system.img (AP)
2). My phone cannot find /system. I have tried restoring my phone to stock, but Odin fails.
The bottom of my recover screen says "dm-verity verification failed ... " And "E: failed to mount /system (Invalid argument)".
Any help or guidance is greatly appreciated.
Thanks.
Click to expand...
Click to collapse
bro did you fix your phone
Hi,
My phone (S7) got into a boot loop for no apparent reason. I noticed it was a bit hot and it froze a couple of times so I rebooted it and after that it was stuck in a boot loop no matter what. I then tried "flashing" the latest firmware with Odin3 to fix it. Everything was fine in Odin but after the phone rebooted, it couldn't finish installing the patch... It showed an "error!' screen then booted into Android Recovery with these logs:
#fail to open recovery_cause(No such file or directory)#
#Reboot Recovery Cause is UNKNOWN
No Support SINGLE-SKU
File-Based OTA
E:failed to mount /efs (Invalid argument)
supported API: 3
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
dm-verity verification failed...
E:failed to clear BCB message: failed to fin /misc partition
Click to expand...
Click to collapse
At this point I'm not sure what I can do... I would really like to avoid a factory reset as I have a lot of data on my phone I would like to keep.
Thanks!
normsrayn said:
Hi,
My phone (S7) got into a boot loop for no apparent reason. I noticed it was a bit hot and it froze a couple of times so I rebooted it and after that it was stuck in a boot loop no matter what. I then tried "flashing" the latest firmware with Odin3 to fix it. Everything was fine in Odin but after the phone rebooted, it couldn't finish installing the patch... It showed an "error!' screen then booted into Android Recovery with these logs:
At this point I'm not sure what I can do... I would really like to avoid a factory reset as I have a lot of data on my phone I would like to keep.
Thanks!
Click to expand...
Click to collapse
Hello, this problem is very common for people that root their phones if you get drk error then there are 2 methods to solve this
Method one : easy
Just flash cf autoroot with odin download the file for your phone and flash it in ap
You may get stuck or get bootloops in splash screen or red errors just wait patiently until rom boots
Method 2 : for if you want no root (ota still impossible)
Flash twrp with odin, then download the no verity file
And move it to your phone, in twrp tap on install and select the file
https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
Just download the latest version of the file (6.0)
Now wait until rom boots
-----------------------------------------------------------------------------------
Please donate and like if you think i deserved it,
If it didnt work you don't have to do it
Happy flashing and good luck
Dont forget to update me after following the steps
I'm a total newbie when it comes to phone flashing, I have a few questions. If I decide to use autoroot, is there a chance for a brick? What could go wrong? I think there's no turning back from rooting a device, right? I don't want to lose my data.
Also, I can't seem to make TWRP work because when I plug the phone to the pc it doesn't recognize it and I can't access it whatsoever to put the files in there, even after installing the drivers.
Thanks!
normsrayn said:
I'm a total newbie when it comes to phone flashing, I have a few questions. If I decide to use autoroot, is there a chance for a brick? What could go wrong? I think there's no turning back from rooting a device, right? I don't want to lose my data.
Also, I can't seem to make TWRP work because when I plug the phone to the pc it doesn't recognize it and I can't access it whatsoever to put the files in there, even after installing the drivers.
Thanks!
Click to expand...
Click to collapse
Flash the stock firmware again but from download the firmware from Samfirm application. Please use the HOME_CSC too or your device is wiped. If you need the firmware just post modelnumber or name idk and CSC code and i can post a link with the firmware for you. TWRP can't mount /data and you will need to format your phone with means you lose everything.
getting dark error in galaxy j4 smj400F after system update failing
Picklewickle said:
Hello, this problem is very common for people that root their phones if you get drk error then there are 2 methods to solve this
Method one : easy
Just flash cf autoroot with odin download the file for your phone and flash it in ap
You may get stuck or get bootloops in splash screen or red errors just wait patiently until rom boots
Method 2 : for if you want no root (ota still impossible)
Flash twrp with odin, then download the no verity file
And move it to your phone, in twrp tap on install and select the file
but i have done factory reset so how to enable oem /unlock bootloader to flash via odin
HELP
-----------------------------------------------------------------------------------
Click to expand...
Click to collapse
Same issue
I have the same issue. I cant boot into download mode at all to even attempt to flash anything
i have sm g955f, flashed on pie, everything is ok, works fine, no memory lost, but when in recovery i get:
E: unknown volume for path [/ odm]
E: unknown volume for path [/ vendor]
E: unknown volume for path [/ odm]
E: unknown volume for path [/ vendor]
anybody knows what this is about? i installed stock firmware, knox has not been triggered, status official. during odin update, no vendor or odm have been flashed to phone (in odlin steops / actions)...
thanks
No one has the same issue?
I too have the same issue. Also to add to that my phone is currently stuck booting into safe mode. I did root my s8+ many moons ago and completely forgot.. not sure what I can do to fix this or if I should try flashing the stock firmware back onto it, completely erase.
Senex03 said:
I too have the same issue. Also to add to that my phone is currently stuck booting into safe mode. I did root my s8+ many moons ago and completely forgot.. not sure what I can do to fix this or if I should try flashing the stock firmware back onto it, completely erase.
Click to expand...
Click to collapse
I didn't root, nor ever flashed anything but stock firmware. Didn't find any solution on the net. Also, tried to flash with full erase, no success.
Quite annoying.
Note Fe N935F
I have same issues and i didn't root my device before
jba.33a said:
i have sm g955f, flashed on pie, everything is ok, works fine, no memory lost, but when in recovery i get:
E: unknown volume for path [/ odm]
E: unknown volume for path [/ vendor]
E: unknown volume for path [/ odm]
E: unknown volume for path [/ vendor]
anybody knows what this is about? i installed stock firmware, knox has not been triggered, status official. during odin update, no vendor or odm have been flashed to phone (in odlin steops / actions)...
thanks
Click to expand...
Click to collapse
It's not an issue if it doesn't affect the functionality of your phone.
It's just a bug in the stock recovery.
same issue
SM-G950U here 100% stock from verizon. Went to bed night before last with low battery woke up to plug it in and boots into the Android Recovery with:
#Reboot Recovery Cause is [[Bootchecker]RebootRecoveryWithKey]#
Support SINGLE-SKU
File-Based OTA
Supported API: 3
E: unknown volume for path [/odm]
E: unknown volume for path [/vendor]
dm-verity verification failed
i've cleared cache , factory reset ... pretty much every option in this menu. Can't boot to safe mode because you never get the "Samsung" just the initial galaxy screen or the recovery.
Brought to a store they could give a **** less they just want to sell me a new phone , big surprise.
I downloaded Odin and Drivers but can't find a non-paywall firmware and the 15k/sec download has failed multiple times (never rooted before)
So just looking for some help here.....
Did anyone fine a solution for this? I started a thread on the same thing did not see this old one.
I was stock att then tried unbranded firmware for a while then recently decided to go back to att and upgrade to Pie at the same time. All seemed to be success besides the recovery showing same error as op.
I have not done a factory reset I was afraid to brick it with the errors going on. After reading here I see reset didn't help. My data and everything was still intact after flashing which was a surprise after changing from U1 to U, and upgrading. I sure would like to find a solution to the errors on recovery. I'm afraid it will be a problem in the future.
On a side note, I noticed I have 5G signal on att. On the unbranded firmware it was LTE tops.
I found the following solution on Samsung J5:
-Download Stock Firmware
- Extract AP with 7zip
- Copy boot.img somewhere else so you can rename it to recovery.img
- Replace old with new recovery.img in extracted AP folder
- Compress AP again to tar file
- Flash new AP archive with everything else in Odin ( I used the PIT file as well nanderase and repartion