Develop Bugs

[Q] Intenal sd card bricked samsung galaxy grand

Experts,
My Samsung Galaxy Grand I9082L is having trouble booting, while using internet it suddenly restarted, then it is not booting (only showing the initial Samsung grand model number). Has any virus attacked bricked my internal storage?
I tried the custom official rom flashing through odin, but it is not working. Kindly help. I think the internal storage has been bricked because i am getting errors like below when i try the recovery mode.
E : failed to mount /data (No such file or directory)
E : failed to mount /system (No such file or directory)
E : failed to mount /cache (No such file or directory)
E : Can't mount /cache/recovery/log,
E : Can't open /cache/recovery/log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_log,
E : Can't open /cache/recovery/last_log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_install,
E : Can't open /cache/recovery/last_install,
E : failed to mount /cache (No such file or directory),
Twice I flashed my mobile using the official fimware through ODIN, install was a PASS, but still getting the same error and not booting.
Do I need to re-partition? Is my internal storage bricked or damaged? In odin I can see 4 options (PDA, phone, CSC, modem etc) after re-partition, do i need to find files for all options and flash? Please let me know how i can re-install the OS, (hardware is fine i think.)
Please help!!!

nano9990 said:
Experts,
My Samsung Galaxy Grand I9082L is having trouble booting, while using internet it suddenly restarted, then it is not booting (only showing the initial Samsung grand model number). Has any virus attacked bricked my internal storage?
I tried the custom official rom flashing through odin, but it is not working. Kindly help. I think the internal storage has been bricked because i am getting errors like below when i try the recovery mode.
E : failed to mount /data (No such file or directory)
E : failed to mount /system (No such file or directory)
E : failed to mount /cache (No such file or directory)
E : Can't mount /cache/recovery/log,
E : Can't open /cache/recovery/log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_log,
E : Can't open /cache/recovery/last_log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_install,
E : Can't open /cache/recovery/last_install,
E : failed to mount /cache (No such file or directory),
Twice I flashed my mobile using the official fimware through ODIN, install was a PASS, but still getting the same error and not booting.
Do I need to re-partition? Is my internal storage bricked or damaged? In odin I can see 4 options (PDA, phone, CSC, modem etc) after re-partition, do i need to find files for all options and flash? Please let me know how i can re-install the OS, (hardware is fine i think.)
Please help!!!
Click to expand...
Click to collapse
search for the files like in the pic in google that will help u i hope

Samsung Galaxy Grand I9082L is having trouble booting
nano9990 said:
Experts,
My Samsung Galaxy Grand I9082L is having trouble booting, while using internet it suddenly restarted, then it is not booting (only showing the initial Samsung grand model number). Has any virus attacked bricked my internal storage?
I tried the custom official rom flashing through odin, but it is not working. Kindly help. I think the internal storage has been bricked because i am getting errors like below when i try the recovery mode.
E : failed to mount /data (No such file or directory)
E : failed to mount /system (No such file or directory)
E : failed to mount /cache (No such file or directory)
E : Can't mount /cache/recovery/log,
E : Can't open /cache/recovery/log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_log,
E : Can't open /cache/recovery/last_log,
E : failed to mount /cache (No such file or directory),
E : Can't mount /cache/recovery/last_install,
E : Can't open /cache/recovery/last_install,
E : failed to mount /cache (No such file or directory),
Twice I flashed my mobile using the official fimware through ODIN, install was a PASS, but still getting the same error and not booting.
Do I need to re-partition? Is my internal storage bricked or damaged? In odin I can see 4 options (PDA, phone, CSC, modem etc) after re-partition, do i need to find files for all options and flash? Please let me know how i can re-install the OS, (hardware is fine i think.)
Please help!!!
Click to expand...
Click to collapse
Have you managed to solve your problem of bootloop, i'm kind of having the same thing
Thanks

i have the same thing i tried to flash by odin with many mnay firmware but still same sometimes show error in cache /recovery ..... even i use spt box not helping

[solved] TWRP - could not mount /data and unable to find crypto footer

Hi,
Nice to be here after so much years of reading !
My LG G3s (d722) was fine with Cyanogenmod 13 and encryption enabled. I've made a Titanium backup for my apps (& cie...) on the SD card, and reboot in TWRP 3.0.2-0, enter my password to mount storage, and I've wiped all partitions exept the SD card.
Then I've flashed the CM14 zip file, and get these error in the process :
"could not detect filesystem for /dev/block/platform/msm_sdcc.1/by-name/userdata, assuming ext4 mount: failed to mount /dev/block/platform/msm_sdcc.1/by-name/userdata at /data: Unkown error 200 unmount of /data failed; no such volume"
"Failed to mount '/data' (No such device)"
Since then :
- if I reboot into recovery, TWRP doesn't ask me the password to decryp the partition
- if I reboot in CyanogenMod ask me the password, but the tells me :
Decryption unsuccessful
The password you entered is correct but unfortunately your data is corrupt.
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google Account.​Then it reboot into TWRP
Any ideas ?
How could I mount ext4 partition in TWRP ? Or restore stock recovery ?
Thanks a lot for your advices

resolving !
Hi myself and everyone from another time,
I've resolved this mess by :
- installing LG drivers
- downloading kitkat stock-rom D72210d_00.kdz
- open LG Flash Tool 2014 and load D72210d_00.kdz, and start a CSE Flash
Then stard android 4, root it... etc
Best

Bootloob

Hello,
I have bootloop on my samsung note II N7100 (International) (GT-N7100) N7100XXSFQA5
it stuck on samsung note II N7100 logo
when i enter recovery it shows android with Exclamation mark
and it start showing this errors
E: failed to mount /efs ( no such file or directory )
E: failed to mount /system ( no such file or directory )
Manual Mode -- Applying Multi-CSC
failed to mount /system
can't mount /system
failed to mount cache
can't mount cache
failed to mount /data
can't mount recovery log
failed to mount /system ( no such file or directory )
failed to mount /cache
can't mount log
can't open log
failed to mount cache
can't mount /cache/recovery/last_install
can't open /cache/recovery/last_install
failed to mount /cache
I've downloaded firmware to flash it using odin
but it always fail
and sometimes the phone not recognized by odin
any help please

lembo07 said:
Hello,
I have bootloop on my samsung note II N7100 (International) (GT-N7100) N7100XXSFQA5
it stuck on samsung note II N7100 logo
when i enter recovery it shows android with Exclamation mark
and it start showing this errors
E: failed to mount /efs ( no such file or directory )
E: failed to mount /system ( no such file or directory )
Manual Mode -- Applying Multi-CSC
failed to mount /system
can't mount /system
failed to mount cache
can't mount cache
failed to mount /data
can't mount recovery log
failed to mount /system ( no such file or directory )
failed to mount /cache
can't mount log
can't open log
failed to mount cache
can't mount /cache/recovery/last_install
can't open /cache/recovery/last_install
failed to mount /cache
I've downloaded firmware to flash it using odin
but it always fail
and sometimes the phone not recognized by odin
any help please
Click to expand...
Click to collapse
Which rom are you trying to install ? In twrp ? Are you make clean install ?

I am installing stock rom
i have stock recovery not twrp

i think the one i am trying to use is old a little bit i am downloading new one and gonna try it

You cant install roms with stock recovery .

DarkMountain said:
You cant install roms with stock recovery .
Click to expand...
Click to collapse
it's official rom
and i am using odin and download page on mobile volume down + home + power

lembo07 said:
it's official rom
and i am using odin and download page on mobile volume down + home + power
Click to expand...
Click to collapse
You need enter download mode not recovery. Are you sure enter download mode ?

Tried using Odin with different usb cables and usb ports?

DarkMountain said:
You need enter download mode not recovery. Are you sure enter download mode ?
Click to expand...
Click to collapse
Yes download mode
audit13 said:
Tried using Odin with different usb cables and usb ports?
Click to expand...
Click to collapse
Yes i did

Sometimes pc not see the Samsung phones. It is known issues. My phone too never connect to pc. Sorry you dont have any choice. If you dont have twrp you cant install roms with stock recovery.
lembo07 said:
Yes download mode
Click to expand...
Click to collapse

How to Unbrick SM-A720F ?! (FRP = On) | E:failed to mount /efs | Combination not work

Hi everyone
I have some questions about Samsung SM-A720F
here is Samsung SM-A720F which has frp lock ! (FRP = On)
I know how to solve this problem, but it has another problem that doesn't let the device to become Ok.
First, the "System Status = Custom" in Downloading Mode , which usually flashing device with Official Firmware it should be changed to "Official
it's wired !!! I've tried 10 different Firmwares with correct binary (the phone's binary is 3 and firmware's binary is also 3)
but it doesn't changed to "Official" ( still System Status = custom :| )
note : i also tried combination files on this phone !
Second , after device flashing , it's just rebooted to recovery mode and shows the below error messages :
- E:failed to mount /efs (Invalid argument)
- E:failed to clear BCB message: failed to find /misc partition
- dm-verity verification failed...
As i know flashing the custom recovery on phone and adb commands solved my problem ! but frp lock is on and i can't flash the custom recovery !!!
note : phone not booted after flashing !
Does anyone know how to deal with this ?!

same problem
My phone also same problem
1) i try to solve from twrp but any rom flashing time - E:failed to mount /efs (Invalid argument)
2) i flash from odin its showing pass but till now mobile booting not complet.
3) i tryied from smart switch also s/n not correct.
please help me before i was used hadesh rom.
SM-A720f/ds
Android IR said:
Hi everyone
I have some questions about Samsung SM-A720F
here is Samsung SM-A720F which has frp lock ! (FRP = On)
I know how to solve this problem, but it has another problem that doesn't let the device to become Ok.
First, the "System Status = Custom" in Downloading Mode , which usually flashing device with Official Firmware it should be changed to "Official
it's wired !!! I've tried 10 different Firmwares with correct binary (the phone's binary is 3 and firmware's binary is also 3)
but it doesn't changed to "Official" ( still System Status = custom :| )
note : i also tried combination files on this phone !
Second , after device flashing , it's just rebooted to recovery mode and shows the below error messages :
- E:failed to mount /efs (Invalid argument)
- E:failed to clear BCB message: failed to find /misc partition
- dm-verity verification failed...
As i know flashing the custom recovery on phone and adb commands solved my problem ! but frp lock is on and i can't flash the custom recovery !!!
note : phone not booted after flashing !
Does anyone know how to deal with this ?!
Click to expand...
Click to collapse

S7 - failed to mount /efs (invalid argument) after OTA update

I have an S7 (Korea model, bought on EBay a year ago) which no longer boots after the latest OTA update - it freezes on the SK Telecom splash screen after the Samsung logo.
I started out hoping to restore data, but now I am just hopeful I can get a working phone again, but it doesn't seem likely from what I have read, as it appears my EFS is corrupt, and I have FRP lock enabled which prevents me from installing TWRP or other tools.
Here are the things I have tried:
1. Used Odin to flash the latest official firmware (SKC-G930SKSU3ETJ1-20201105091200) (BL, AP, CP HOME_CSC)
2. Wiped flash from Recovery
3. Wiped data/factory reset from Recovery
4. Tried to load TWRP via Odin, but blocked by FRP
5. Tried to use adb sideload twrp... from a PC but also blocked by FRP
I can get into recovery, but get the E:failed to mount /efs (invalid argument) error
I can get into download mode with:
PRODUCT NAME: SM-G930S
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custom
FRP LOCK: ON
Secure Download: Enabled
WARRANTY VOID: 1 (0x0500)
AP SWREV: B:3 K:2 S:2
I didn't root this phone myself, but believe it was done by the eBay seller I got it from. The recovery screen appears to be original, so I'm not sure why I get a SYSTEM STATUS: Custom on the download screen, as I have original Samsung firmware.
Android Recovery
samsung/herolteskt/herolteskt
8.0.0/R16NW/G930SKSU3ETJ1
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe data/factory reset
Wipe cache partition
Mount /system
View recovery logs
Run graphics test
Power off
#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)
E:failed to mount /efs (Invalid argument)
dm-verity verification failed...
Is there a way out of this, or do I have a bricked phone?

Looks like it's bricked, so I guess I'll offer it for parts on eBay. Got her a new A11, not as nice as the S7 in some ways, but at least it's covered with a 2 year protection plan...