Samsung Galaxy S7 SM-G930F E: Failed to Mount /system (Invalid argument) - Samsung Galaxy S7 Questions and Answers

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

Related

Bricked S6 trying stock firmware

So somehow i managed to write over my backup and destroyed my efs folder in the process of rooting. I had no mobile connection and a message would appear saying sim card wasn't detected.
Recently my phone crashed and something with the bootloader failed because I get stuck at the Samsung logo every time. After trying to use my backup it says "no OS installed" when I try to reboot to system in TWRP.
I've tried downloading samsung s6 stock firmware on samfirm but every time I put it in Odin the program crashes. Should I try putting it on my phone and installing from TWRP? Does that work?
Is there any chance I can restore the EFS folder if I get my phone back running? IMEI and Basebank are both unknown right now..
Anyone? Pleeease? I've tried removing hidden.img from the tar file as I heard that works but no luck.
Try to Remove .md5
Jordy87pack said:
Anyone? Pleeease? I've tried removing hidden.img from the tar file as I heard that works but no luck.
Click to expand...
Click to collapse
Try to remove the .md5... let only the .tar of the rom, put your phone in Download mode, plug the cable, and press start on Odin. At the end, enter in the Recovery mode, do the wipes and reboot.
Come back to say if success or not.
i try to do wipes in twrp and it says unable to mount storage
failed to mount /data (invalid argument)

honor 8 cant install any firmware and doesn't boot

hello iv been trying to flash emui 5.0 firmware but i always get the same error when i flash the system.img it says FAILED (remote: sparse flash write failure)
and when i tried to flash the cust.img i get FAILED (remote: partition error). so like you figured i damaged the partition
i tried to wipe cache, format data but still doesn't work to flash the system.img and the cust.img but the boot and recovery images are fine to flash.
i also tried the dload method with no luck. so it started of when i updated to nougat 7.0 emui 5.0 from emui 4.1 marsmallow 6.0.1 it didn't update properly and i got some other version
with only google voice input, and crashed. so i decided to flash it manually instead in fastboot but before i flashed i went in to twrp and wiped everything and formated the data.
then i flashed the boot,recovery,cust,system images from the update.app to emui 5.0 for my device but then i damage my partition and got stuck on a boot loop. after that i went
in twrp and wiped everything again flashed the images again but then system and cust img failed errors above. would appreciate any assistance thank you.
are you able to flash any custom ROM?
Try booting to TWRP from TWRP and see if it makes any different instead directly wiping and booting.
shashank1320 said:
are you able to flash any custom ROM?
Try booting to TWRP from TWRP and see if it makes any different instead directly wiping and booting.
Click to expand...
Click to collapse
well i tried to boot from Twrp to Twrp with no result
and i cant seem to flash anything in twrp because i always get (failed to mount)
i tried to flash emui 5.0 nougat firmware for my Frd-L09 but then i got a boot loop, so i went in twrp and wiped everything,
and went in to bootloader and flashed another twrp 3.0.2 wich didn't work it just stuck on your device is booting now...
Android6969xd said:
well i tried to boot from Twrp to Twrp with no result
and i cant seem to flash anything in twrp because i always get Failed to mount '/cust ' (invalid argument)
Failed to mount ' /vendor (invalid argument)
Failed to mount '/product (invalid argument)
i tried to flash emui 5.0 nougat firmware for my Frd-L09 but then i got a boot loop, so i went in twrp and wiped everything,
and went in to bootloader and flashed another twrp 3.0.2 wich didn't work it just stuck on your device is booting now...
Click to expand...
Click to collapse
..
Solution for that
Brother Use Dc phoneix tool... It can flash the firmware into the device in any condition whether its bricked or both frp and bootloader locked.. And its a awsome tool to repair the phone.... Yesterday i have tried it on my phone too.... Flawlessly it worked... But its a paid tool... I bought 3 days licence to repair my phone... Yesterday only i bought the license and still 2 days left... If you wang you can ping me...
My WhatsApp no: +91 7587136151
prasanth.nitrr said:
Brother Use Dc phoneix tool... It can flash the firmware into the device in any condition whether its bricked or both frp and bootloader locked.. And its a awsome tool to repair the phone.... Yesterday i have tried it on my phone too.... Flawlessly it worked... But its a paid tool... I bought 3 days licence to repair my phone... Yesterday only i bought the license and still 2 days left... If you wang you can ping me...
My WhatsApp no: +91 7587136151
Click to expand...
Click to collapse
where do i buy it?
You can buy it from this link
(as iam a blocked member iam not able to post links in this thread... Just go to DC unlocker dot com and you can find the buy option)
DC-Phoneix +HCU timed licence is preferred for repairing of a bricked phone..
And detailed procedure has been given for every problem
prasanth.nitrr said:
You can buy it from this link
(as iam a blocked member iam not able to post links in this thread... Just go to DC unlocker dot com and you can find the buy option)
DC-Phoneix +HCU timed licence is preferred for repairing of a bricked phone..
And detailed procedure has been given for every problem
Click to expand...
Click to collapse
oh it was 19 euro dont have any money on my card, but if u could share your login to save my phone i would be very greatfull
Lol
No problem i will give you the logins...
Ping me on telegram
My username is : @acpdhruva
Dont panic its just a username lol..
prasanth.nitrr said:
No problem i will give you the logins...
Ping me on telegram
My username is : @acpdhruva
Dont panic its just a username lol..
Click to expand...
Click to collapse
do you have kik or a messenger you dont need to add phone number?
having a hard time to sign up without phone number hahah
Android6969xd said:
well i tried to boot from Twrp to Twrp with no result
and i cant seem to flash anything in twrp because i always get (failed to mount)
i tried to flash emui 5.0 nougat firmware for my Frd-L09 but then i got a boot loop, so i went in twrp and wiped everything,
and went in to bootloader and flashed another twrp 3.0.2 wich didn't work it just stuck on your device is booting now...
Click to expand...
Click to collapse
You need to flash the TWRP 3.1 for EMUI 5.0. Once you flash the correct file you can boot.
Do one thing, remove USB and just press power key, it will boot to system.
Sorry my bad english.
If you connect the phone to PC, you can browse the internal or external storage?
If you do, or you have an sdcard, use it to dload mode to flash firmware. Use rollback package to revert back to an old firmware. And don't use twrp to flashing firmwares. Its wont work perfectly with nougat firmwares. Dont use it.
From twrp did not work for me. This method send my phone to bootloop and later just booting to erecovery, or stay a permanent bootloop. TWRP gone and just the dload method works 100 percentage.
Mumtaz77 said:
Sorry my bad english.
If you connect the phone to PC, you can browse the internal or external storage?
If you do, or you have an sdcard, use it to dload mode to flash firmware. Use rollback package to revert back to an old firmware. And don't use twrp to flashing firmwares. Its wont work perfectly with nougat firmwares. Dont use it.
From twrp did not work for me. This method send my phone to bootloop and later just booting to erecovery, or stay a permanent bootloop. TWRP gone and just the dload method works 100 percentage.
Click to expand...
Click to collapse
yes i have access to internal storage and i tried the dload method with my sdcard maybe it only work with micro sd?
shashank1320 said:
You need to flash the TWRP 3.1 for EMUI 5.0. Once you flash the correct file you can boot.
Do one thing, remove USB and just press power key, it will boot to system.
Click to expand...
Click to collapse
i flashed the correct twrp 3.1 but i still get Failed to mount '/cust ' (invalid argument)
Failed to mount ' /vendor (invalid argument)
Failed to mount '/product (invalid argument)
Android6969xd said:
i flashed the correct twrp 3.1 but i still get Failed to mount '/cust ' (invalid argument)
Failed to mount ' /vendor (invalid argument)
Failed to mount '/product (invalid argument)
Click to expand...
Click to collapse
Did you make any changes or flasshed custom ROM?
shashank1320 said:
Did you make any changes or flasshed custom ROM?
Click to expand...
Click to collapse
i tried to flash Lineage 14.1 but that lead to black screen when the device booted
and i tried changing the file system to ext2 back to ext4
Android6969xd said:
i tried to flash Lineage 14.1 but that lead to black screen when the device booted
and i tried changing the file system to ext2 back to ext4
Click to expand...
Click to collapse
Tried dload to restore the phone?
or can go to TWRP and then wipe section, select partition and repair it. and then try the things you want to do
shashank1320 said:
Tried dload to restore the phone?
or can go to TWRP and then wipe section, select partition and repair it. and then try the things you want to do
Click to expand...
Click to collapse
hi i tried the dload method and it worked had to buy a micro sd but it was worth it
i cant believe it myself nvm it failed at 99% thought it was a success
lol tried it a few more times and it worked actually
this was the firmware i used http://androidhost.ru/vb with the dload method
Android6969xd said:
hi i tried the dload method and it worked had to buy a micro sd but it was worth it
i cant believe it myself nvm it failed at 99% thought it was a success
lol tried it a few more times and it worked actually
this was the firmware i used http://androidhost.ru/vb with the dload method
Click to expand...
Click to collapse
best part is your efforts paid and you restored your phone.

Installing system update fail after Odin flash. Boot into recovery mode.

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

E:Failed to mount EFS ( Invalid Argument)

Hello friends, when I flash Combination file, or stock file , my phone boots and hang at start up logo, while I restart to recovery I see this error (E:Failed to mount efs, Invalid Argument)?
Can anyone help?
What have you done ? Trying to root and lost your IMEI ?
If so, then go to recovery and do all of the wipes and format Data. Once done, then just flash the exact same ROM as the one which is already installed on your phone.
TheRealKeyserSoze said:
What have you done ? Trying to root and lost your IMEI ?
If so, then go to recovery and do all of the wipes and format Data. Once done, then just flash the exact same ROM as the one which is already installed on your phone.
Click to expand...
Click to collapse
This steps does not work, I need EFS for A8 2018.
I'm having the same problem, I've tried everything. z3x, Odin , won't even let me flash from sd card. Won't load into Oreo just keeps rebooting. I can get into recovery but does nothing as well as boot loader. I did have a utility im pretty sure was made by FACTORY BINARY that was it's own little OS with a bunch of little tools. I have a sm-a530w flashed with boot loader 4 ugggg. If anyone can help find that utility that will wipe the whole thing and let me flash from scratch that would be awesome. I've tryed miracle, Uni-Android, samsung tools 29.5 and flashing with odin. Lets me flash factory FIRMWARE but still error's out on the "Failed to mount EFS" HELPPLEASE
A quick suggestion you probably tried, but i've had failure at boot in the past after returning to stock via odin if i used home_csc. So, if you haven't already tried, use just csc. No home. On home it does system.img until the end, no user_data . Not sure at all what the deal is but it's all i can suggest. Get 'er goin'!
:Failed to mount EFS
Yes I think I tried that, but at this point, I try again. Any more suggestions would be greatly appreciated. An A8 in mint shape just hurts LOL.

Samsung Galaxy J4+ (SM-J415GN) Stuck in download mode..

Hi Guys,
I'm having problem flashing stock rom or custom rom using Odin 3.13 or 3.14 version. I also encounter where my internal storage drops to 10GB from 32GB. I"m getting several errors in Odin like Auth Fail, re-partion failed using a PIT file from the extracted csc file firmware that iv'e downloaded and now I'm getting the failed to mount /odm (invalid argument). Recovering my backup file in twrp didn't succeeded too.
I need your help devs. I've attached a pic where the phone boots to download mode always.
Badly need your help guys, I'm running out of solutions.... please please.
Thank You! Thank you in advance.
This is sad. Not getting any help... I guess my phone is dead in the water...
1- download odin for your phone model forum and twrp specific to your device
2- open odin make settin uncheck auto reboot and paste twrp in ap before you go in phone to download mode by vol+ and vol- and power after switch off, phone goes to download mod
3- then start, after it passes green, you have to install specific files found in ashyx forum page
4- then wipe format data and advanced wipe- dalvik,system,cache,data
5- install custom rom of your choice and reboot to system
mojo_ojoj said:
Hi Guys,
I'm having problem flashing stock rom or custom rom using Odin 3.13 or 3.14 version. I also encounter where my internal storage drops to 10GB from 32GB. I"m getting several errors in Odin like Auth Fail, re-partion failed using a PIT file from the extracted csc file firmware that iv'e downloaded and now I'm getting the failed to mount /odm (invalid argument). Recovering my backup file in twrp didn't succeeded too.
I need your help devs. I've attached a pic where the phone boots to download mode always.
Badly need your help guys, I'm running out of solutions.... please please.
Thank You! Thank you in advance.
Click to expand...
Click to collapse
Ans...
Okay I think thats not downloading mode that you were looking for. The screen need to turn blue/skyblue know that you're moving to the right direction. And going to this mode you need to search about it then come to Odin

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