I searched for an answer and noticed it's a common issue. I am trying to flash a kernel on to my already flashed rom. I was wondering if there is a more current fix. More importantly, how can this be avoided in the future. Thank you guys!
Its caused by a bug/error with either the filesystem or encryption.
Did you wipe data after flashing the new ROM? Data from stock usually doesn't work with custom ROMs.
Do you have a PIN/password on Android?
Are you using the latest build of TWRP?
Press the menu button at the bottom of the screen in TWRP and post what the error message is in the red text.
It's caused by no root access
djhulk2 said:
It's caused by no root access
Click to expand...
Click to collapse
Something is probably wrong with the data partition. TWRP should always have root access.
Try in TWRP:
Wipe > Format Data > Slide to format
This will erase the data partition, so backup everything to a PC in Android first if needed. It should allow TWRP to mount /data again.
KemikalElite said:
Something is probably wrong with the data partition. TWRP should always have root access.
Try in TWRP:
Wipe > Format Data > Slide to format
This will erase the data partition, so backup everything to a PC in Android first if needed. It should allow TWRP to mount /data again.
Click to expand...
Click to collapse
I've debated on doing this. I'm not worried about losing pictures texts etc as they're backed up.
I read that it essentially leaves the device with no OS. If that's wrong please let me know!
I have found that if I choose Slot A and reboot system it reboots me in to TWRP. If I choose Slot B it runs the OS like normal (except I still have issues using Facebook and it's services).
The ROM works and I can perform all the custom mods on it. I just want to flash a kernel and the problem persists. 0 mb in storage.
It's trial and error at this point. Fail fast fail forward. I have another phone I can use but I love the OnePlus. Any help will be appreciated!
https://andi34.github.io/faq/faq_twrp.html
I'm not willing to risk it until I know how to get the custom ROM on to the storage to flash it.
Yes formating by typing in yes will wipe it all,everything including pictures, with no rom on it at all. If u choose to do that, don't close twrp. Instead you should be able mount after wards, once mounted transfer the magisk zip, twrp, and your custom rom(has to be 1.5gb not 200mb through magisk). Flash magesik, install ram disk twrp, install rom. That was a method I've done before but if u want to keep everything there is other way
fastboot boot twrp.img, that command boots twrp if u have it or don't, installing to ram disk makes it permant...this boot command is just a one time thing each time. It's what I do when new firmware update, I loose root but I regain it each time
Never heard of formating data removing the OS, that would be if you wipe the system and normal wipe is like a factory data reset and therefore will not wipe your phone of the OS
djhulk2 said:
Yes formating by typing in yes will wipe it all,everything including pictures, with no rom on it at all. If u choose to do that, don't close twrp. Instead you should be able mount after wards, once mounted transfer the magisk zip, twrp, and your custom rom(has to be 1.5gb not 200mb through magisk). Flash magesik, install ram disk twrp, install rom. That was a method I've done before but if u want to keep everything there is other way
fastboot boot twrp.img, that command boots twrp if u have it or don't, installing to ram disk makes it permant...this boot command is just a one time thing each time. It's what I do when new firmware update, I loose root but I regain it each time
Click to expand...
Click to collapse
I attempted to format. It said
"failed to mount /data (device or resource busy)
"unable to mount storage"
Try this in recovery, sometimes its known to work.
Wipe > Advanced Wipe > Check Data and press Repair or Change File System > Change File System > Change it to EXT2.
Repeat the same process selecting Ext4
Wipe > Advanced Wipe > Check Data and press Repair or Change File System > Change File System > Change it to back to EXT4.
Try formatting data after this.
drey4211 said:
I attempted to format. It said
"failed to mount /data (device or resource busy)
"unable to mount storage"
Click to expand...
Click to collapse
Since you dont care about the data on the phone I would just do 1 of 2 things. 1st I would reflash twrp on to you phone if that doesn't work then I would just grab the fastboot ROM and just flash your phone back to full stock reroot and install twrp from scratch. I would not try to start repairing partitions. I wouldn't want to worry about screwing up the EFS partition
Well in an update, I formatted the
Storage and now I'm stuck in bootloader screen. It's unlocked but I'm having a hard time flashing a ROM through adb.
I use the twrp version 3.3.1-2
Best would be to just use fast command to boot it
But it should be under wipe/format data/then type in yes
That was what I was trying to have you avoid. If your can boot to fastboot download the fastboot ROM I told you to and run the flash-all.bat file. If your on 9.5.8 make sure you use the fastboot ROM of the same version. Do not flash azip of a different version firmware like 9.5.7.
It happens to me any time I'm in twrp and flash a rom then reflash twrp. It doesn't matter if I flash Magisk or not the issue always happens. What I do is use a USB C flash drive and plug it in when I want to flash/backup a rom. This way I can always access it. After flashing any rom then booting I'm always able to access my internal storage again. It seems like a bug in twrp.
The strange part is when this bug happens your files are encrypted in a 0 folder but you can still copy from your PC to your internal storage while in twrp.
I essentially soft bricked my device. Called OnePlus and they got me up and running. That's awesome that they have that service!
Are you removing all security? Pattern, pin and fingerprints? Are you decrypted? Never had an issue with flashing a ROM causing these issues which is why I'm asking. Something you've done at some point is causing this
I'm not sure what that was. Ironically enough I am now stuck in TWRP boot loop. Hopefully I can figure this out otherwise I have to call oneplus again.
I will admit I may not know everything but it's trial and error. I don't have anyone to really teach me this so I try to read the forums and learn. You guys have been great!
ajsmsg78 said:
It happens to me any time I'm in twrp and flash a rom then reflash twrp. It doesn't matter if I flash Magisk or not the issue always happens. What I do is use a USB C flash drive and plug it in when I want to flash/backup a rom. This way I can always access it. After flashing any rom then booting I'm always able to access my internal storage again. It seems like a bug in twrp.
The strange part is when this bug happens your files are encrypted in a 0 folder but you can still copy from your PC to your internal storage while in twrp.
Click to expand...
Click to collapse
I've the same issue.. did you find a fix? So annoying
Related
I am trying to update my xoom to a new rom, ICS, and yet when I go into recovery to wipe data/cache, nothing gets touched by this command. I want to wipe the xoom clean and start over yet I can never get this command to work. I want to format the internal storage and start fresh yet every time I try this command all of the folders and apps and data are still left on the internal storage.
Any suggestions on how to get this fixed? I wanted to just mount the storage while in recovery and then perform a format on the device from within windows yet I can never get the device to mount from recovery. The only thing I can think of is to re-root/unlock the device and fastboot flash a new image to the device. Any thoughts?
beankid said:
I am trying to update my xoom to a new rom, ICS, and yet when I go into recovery to wipe data/cache, nothing gets touched by this command. I want to wipe the xoom clean and start over yet I can never get this command to work. I want to format the internal storage and start fresh yet every time I try this command all of the folders and apps and data are still left on the internal storage.
Any suggestions on how to get this fixed? I wanted to just mount the storage while in recovery and then perform a format on the device from within windows yet I can never get the device to mount from recovery. The only thing I can think of is to re-root/unlock the device and fastboot flash a new image to the device. Any thoughts?
Click to expand...
Click to collapse
Sometimes you have to mount /data and /system before those commands work. For some reason I see those file systems don't get mounted when cwm or twr loads.
Sent from my PG86100 using Tapatalk
I recently managed to successfully root my TF101.
I installed CWM (Via ROM Manager) and downloaded CM9
I boot into CWM and attempt to do a nandroid...can't find path.
I attempt to just install from SDCard...can't find path
Realization (and research) hits that CWM can't see the external sd, and the system doesn't see it as SDCARD but EXT-.
CWM can't see the internal SDCard because apparently on the Tablet the ICS encryption locks that down (but doesn't on my EVO since the SC Card isn't part of the internal storage)
I attempt to perform a factory data wipe to clear out the encrtyption , but upon reboot CWM loads. I try to perform the boot-launcher data wipe, but then CWM loads.
I try to use CWM to factory reset but since it can see the damned SDCard because of the encryption, no dice.
My machine is not bricked, as I can still boot into the previous install but I can't seem unable to format the thing to install CM9.
What to do, and thanks.
It has been said multiple times before DO NOT USE ROM MANAGER.
Either use Thing O Doom's peri to install a different CWM or Gnufabio's Recovery installer or NVFlash a rom to completely wipe. And don't use encryption there is no point 99% of the time
I didn't check here first, which is obviously what was my first mistake.
Will any of those recoveries be able to access and format the SD Card area?
Also, I use encryption as I do have sensitive things on my machine that I don't want exposed in case the machine is stolen. First time I've ever had it give me a problem, as the phone encrypts differently.
Team roug's recovery has internal and external sd support and i think the encryption is an ics/tegra 2 bug more than anything
Ok, so I managed to get the new recovery on via Thing O Doom's peri. And I was able to install Revolver via the ext card...but upon boot I was prompted for my encryption pin and got the message that android was updating...My Build number is now Revolver but everything is the same as it was. I still can't factory wipe this damned thing.
Upon request to wipe, it boots back to recovery and says formatting data and cache, data wipe failed.
Tis site states http ://0xfeedface.org/blog/lattera/2012-06-04/installing-cm9-encrypted- android-tablet
The dilemma
When you encrypt your Android device, the /data partition is what gets encrypted. The partition in full is encrypted and cannot be mounted within CWM. CWM also cannot perform a wipe, since it cannot mount the /data partition. And CWM cannot mount the external SD card. This is our dilemma. No access to the internal SD. No access to the external SD. No way to perform a wipe and format the internal SD from CWM.
The Solution
What we need to do, then, is use adb while the tablet is in recovery mode to reformat the internal SD card, thereby removing the encryption. On the US Transformer Prime, the internal SD card is at /dev/block/mmcblk0p8. The partition for our spare SD card will be at /dev/block/mmcblk1p1. You will need to replace those device entries for any other device you might attempt this on. After formatting the internal SD card, we will mount it and then mount the external SD card at /data/media:
In CWM, wipe cache
adb shell
mke2fs -t ext4 /dev/block/mmcblk0p8 # Warning: This can take a while. Be patient.
mount /data
mount /dev/block/mmcblk1p1 /data/media
Now go back to CWM on your device, then go ahead and flash your CM9 and gapps zips like normal. You now have CM9 installed! The /data partition is not encrypted. If you do not need to flash any other ROMs (unlikely if you're reading this article), feel free to re-encrypt your device.
Click to expand...
Click to collapse
I don't know the block numbers for the TF01
you need to undo the encryption before you can wipe anything
You can't. Hence my problem. I cannot mount,delete, or format the SDCard. It sounds like the process in the above post is the solution, but I don't know how to find out what block numbers the tf101 uses.
If you don't mine losing your data NVflashing a rom will resolve all the problems
Yep nvflash will do the trick otherwise as the solution you found yourself explains
Use adb in recovery ( in other words hook it up on a pc ) for this you will need android sdk runnin on your pc
More info about adb u can find here
http://forum.xda-developers.com/showthread.php?t=1751439&highlight=adb+help
Good luck
Thanks to all, I have resolved my issue!
I had to download the stock rom, extract the blob, and use Wheelie for PC to NVFlash everthing abck to stock. I was then able to update over OTA, and use the excellent Thing O Doom's peri to re-root and flash the working recovery.
There should be several items in the Root FAQ up top, such as:
If you are encrypted and going to root, factory reset to get rid of the encryption FIRST since the encryption locks down the SDCARD partition (Unlike on the phone)and none of the recoveries can access it to mount. DON"T use ROM manage on the TF101 and always, always check XDA first.
:good:
darthrater said:
Thanks to all, I have resolved my issue!
I had to download the stock rom, extract the blob, and use Wheelie for PC to NVFlash everthing abck to stock. I was then able to update over OTA, and use the excellent Thing O Doom's peri to re-root and flash the working recovery.
There should be several items in the Root FAQ up top, such as:
If you are encrypted and going to root, factory reset to get rid of the encryption FIRST since the encryption locks down the SDCARD partition (Unlike on the phone)and none of the recoveries can access it to mount. DON"T use ROM manage on the TF101 and always, always check XDA first.
:good:
Click to expand...
Click to collapse
That FAQ is sadly pretty outdated, I wish I could liberate the OP
Glad all is working now though.
i had a recent soft brick in which for some reason, i couldnt decrypt, with this, i couldnt load anything on android besides twrp and fastboot.. when i try reformatting and wiping data, it seems to fail.. for example, i go to format with twrp and it hangs, if i try installing anything itll fail to load any data onto that partition.. if i could reformat that partition back to its useful state, without the encryption issue i could reinstall a rom and fix this issue
any ideas?
when i attempt to do anything in twrp.. i get this error
Updating partition details
E: error opening ' /data/media '
E: error: No such file or directory
just a test, i tried to create a new folder in /data, and it says its a read-only filesystem
jason41987 said:
i had a recent soft brick in which for some reason, i couldnt decrypt, with this, i couldnt load anything on android besides twrp and fastboot.. when i try reformatting and wiping data, it seems to fail.. for example, i go to format with twrp and it hangs, if i try installing anything itll fail to load any data onto that partition.. if i could reformat that partition back to its useful state, without the encryption issue i could reinstall a rom and fix this issue
any ideas?
when i attempt to do anything in twrp.. i get this error
Updating partition details
E: error opening ' /data/media '
E: error: No such file or directory
just a test, i tried to create a new folder in /data, and it says its a read-only filesystem
Click to expand...
Click to collapse
Your partition is probably encrypted. The only way to access to your data is to decrypt it before you can do anything. Do you have a password for it?
LetMeKnow said:
Your partition is probably encrypted. The only way to access to your data is to decrypt it before you can do anything. Do you have a password for it?
Click to expand...
Click to collapse
no, any way i can erase all the data, the partition and start fresh?
jason41987 said:
no, any way i can erase all the data, the partition and start fresh?
Click to expand...
Click to collapse
"Format data" should do this. In which way doesn't it work for you?
_that said:
"Format data" should do this. In which way doesn't it work for you?
Click to expand...
Click to collapse
when i attempt to format data, format fails, it will not let me touch the /data partition, when it does mount, it mounts as read-only.. the partition itself, possibly partition table or something is damaged because it cannot be formatted and nothing can be written to it
it would seem like the internal storage is screwed.. but the other partitions seem to work fine, even able to use command-line from twrp to check fstab and try to mount manually... im not sure how to completely delete and recreate a partition in fdisk, if possible on here
jason41987 said:
when i attempt to format data, format fails
Click to expand...
Click to collapse
No error message? No log file? Just "fails"?
You could try running "/sbin/make_ext4fs /dev/block/mmcblk0p8" manually from adb shell.
jason41987 said:
it would seem like the internal storage is screwed.. but the other partitions seem to work fine, even able to use command-line from twrp to check fstab and try to mount manually... im not sure how to completely delete and recreate a partition in fdisk, if possible on here
Click to expand...
Click to collapse
You can't use fdisk on the internal storage - it uses a combination of GPT and a proprietary partition table.
_that said:
No error message? No log file? Just "fails"?
You could try running "/sbin/make_ext4fs /dev/block/mmcblk0p8" manually from adb shell.
You can't use fdisk on the internal storage - it uses a combination of GPT and a proprietary partition table.
Click to expand...
Click to collapse
the errors i receive are above..trying different things ive received the error that the partition is write one... are there any tools for redoing the entire internal storage?
maybe this could work.. since the other partitions seem to work just fine, as they were not encrypted, what if i edited fstab to mount partitions on a MicroSD card pre-partitioned to act as /data and /cache, then install a rom... unless there are ROMs designed to utilize an external SD for installation?... either way if i can work around these two partitions i could get into a working android system where i can find more tools to assist in removing and recreating those broken partitions
ive considered trying to use fastboot to replace the twrp recovery with a stock asus recovery partition and try to fix the issue from that, but i doubt that would be of any use
jason41987 said:
ive considered trying to use fastboot to replace the twrp recovery with a stock asus recovery partition and try to fix the issue from that, but i doubt that would be of any use
Click to expand...
Click to collapse
Instead you should try it cause i'm pretty sure it will fix your partition.Just install the stock recovery and do a Wipe Data first. If all goes well you can go ahead and flash a stock rom from MicroSD or install the TWRP again and check if it's working.
Here you can find the latest stock recovery - - > http://forum.xda-developers.com/showthread.php?p=44280630
Pretoriano80 said:
Instead you should try it cause i'm pretty sure it will fix your partition.Just install the stock recovery and do a Wipe Data first. If all goes well you can go ahead and flash a stock rom from MicroSD or install the TWRP again and check if it's working.
Here you can find the latest stock recovery - - > http://forum.xda-developers.com/showthread.php?p=44280630
Click to expand...
Click to collapse
are you saying write over twrp with the stock recovery partition with fastboot, then boot into the recovery partition from the power + volume down menu and see if that recovery image will reset to factory defaults?... if so, where would i even get that recovery image?.. and if you mean just try installing a stock rom through TWRP, ive already been there, done that, and it hangs on formatting
jason41987 said:
are you saying write over twrp with the stock recovery partition with fastboot, then boot into the recovery partition from the power + volume down menu and see if that recovery image will reset to factory defaults?... if so, where would i even get that recovery image?.. and if you mean just try installing a stock rom through TWRP, ive already been there, done that, and it hangs on formatting
Click to expand...
Click to collapse
If you follow the link i posted previously you will find the stock recovery (from the latest asus firmware) as an attachment to that post.
After you flash it via Fastboot, do a Wipe Data from the bootloader menu (the one with the 3 icons) after that just follow "restore with stock recovery" procedure from my All in One Thread (it's a sticky post under General Forum).
That should fix your issue and get you to a new clean starting point.
Pretoriano80 said:
If you follow the link i posted previously you will find the stock recovery (from the latest asus firmware) as an attachment to that post.
After you flash it via Fastboot, do a Wipe Data from the bootloader menu (the one with the 3 icons) after that just follow "restore with stock recovery" procedure from my All in One Thread (it's a sticky post under General Forum).
That should fix your issue and get you to a new clean starting point.
Click to expand...
Click to collapse
well, ill try that as soon as i wake up.. if it doesnt work though i am prepared to install something thatll run those partitions of an external microsd though.. wonder why no roms exist specifically for that?... seems like an ultra-secure rom for the ultra-paranoid to be able to pop out their microsd and hide it with all user data stored on it
jason41987 said:
well, ill try that as soon as i wake up.. if it doesnt work though i am prepared to install something thatll run those partitions of an external microsd though.. wonder why no roms exist specifically for that?... seems like an ultra-secure rom for the ultra-paranoid to be able to pop out their microsd and hide it with all user data stored on it
Click to expand...
Click to collapse
Data2SD already exists.
Did you already try to format your data partition from adb shell?
data2sd seems to be something thats applied after a rom is successfully installed, not sure that would help me
anyway, i tried the stock recovery image and it just hangs on an android graphic with a rotating blue wireframe inside its chest and a blue progress bar, but it doesnt actually do anything else
edit: wait a minute.. i see how this goes with the data2sd... i download a data2sd kernal, since i install cleanrom i can add this to the installations list of kernals, the data2sd kernal will mount external SD cards as the /data, cache, and sdcard partitions, allowing me to bypass the issue im having completely and use a 64gb microsd card as my primary storage... very interesting indeed
aah, fantastic, cant even get into fastboot mode to put twrp back on for the data2sd method.. so it would seem now my tablet is COMPLETELY toast
jason41987 said:
aah, fantastic, cant even get into fastboot mode to put twrp back on
Click to expand...
Click to collapse
What happens when you try?
_that said:
What happens when you try?
Click to expand...
Click to collapse
when i hold power and volume down it goes straight to the robot with the blue spinning wireframe graphic,, i dont get an option to go to fastboot.. i can also use power and volume up to go into apx mode but no idea what thats even used for as i find very little reference to it online
jason41987 said:
when i hold power and volume down it goes straight to the robot with the blue spinning wireframe graphic,, i dont get an option to go to fastboot..
Click to expand...
Click to collapse
I see, that's forced boot to recovery because of "wipe data" selected from the bootloader menu.
I don't know how long wiping data takes, maybe you are just not patient enough to let it finish?
_that said:
I see, that's forced boot to recovery because of "wipe data" selected from the bootloader menu.
I don't know how long wiping data takes, maybe you are just not patient enough to let it finish?
Click to expand...
Click to collapse
no, it finished, then said it was booting the recovery image afterwards, then i let it sit for about 2 hours when i went to do something else and it hanged on that screen... no way to fix this from apx mode?
jason41987 said:
no way to fix this from apx mode?
Click to expand...
Click to collapse
APX mode is only useful if you have nvflash, the wheelie tool, and the blob file for your device, which you'd have needed to create with firmware 9.4.5.26 or earlier and the hacked bootloader from androidroot.mobi.
Hi Guys
Im having trouble flashing new Roms to my S7. When I enter TWRP recovery, it shows my device as 0MB and it doesnt picK up any files. I looked into this and read that Encryption should be disabled on the handset. I followed instructions to do this and noticed that there is no option for Encryption Protection. Its not there!
I disabled any passwords and Pin numbers to erase decryption and it still didnt work!
last resort was to try a factory reset and the device restarted to recovery and failed as TWRP recovery cant find any mounted devices due to the encryption crap.
Any help appreciated.
Chris
scientificharmony said:
Hi Guys
Im having trouble flashing new Roms to my S7. When I enter TWRP recovery, it shows my device as 0MB and it doesnt picK up any files. I looked into this and read that Encryption should be disabled on the handset. I followed instructions to do this and noticed that there is no option for Encryption Protection. Its not there!
I disabled any passwords and Pin numbers to erase decryption and it still didnt work!
last resort was to try a factory reset and the device restarted to recovery and failed as TWRP recovery cant find any mounted devices due to the encryption crap.
Any help appreciated.
Chris
Click to expand...
Click to collapse
Hi mate
Seems like you did not format your data partition during TWRP installation.........
Try flashing your custom rom from the External SD card......your data partition has all your app , files , passwords, photos...there is still a chance that there it may be a incompatibility issue between your apps and the new rom....that is why they recommend a factory reset when flashing a new custom rom
MAX 404 said:
Hi mate
Seems like you did not format your data partition during TWRP installation.........
Try flashing your custom rom from the External SD card......your data partition has all your app , files , passwords, photos...there is still a chance that there it may be a incompatibility issue between your apps and the new rom....that is why they recommend a factory reset when flashing a new custom rom
Click to expand...
Click to collapse
hi mate
thanks for your reply. I dont have an external SD card
Is there any other way of sorting this? I am downloading a stock rom as we speak.
scientificharmony said:
hi mate
thanks for your reply. I dont have an external SD card
Is there any other way of sorting this? I am downloading a stock rom as we speak.
Click to expand...
Click to collapse
Hi
TWRP can not handle Samsung encryption . if you wish to use TWRP and have access to the Data partition ( internal SD card) you need to format it so the encryption is disabled ( you lose all your apps , data and user configuration AKA factory reset) , you can have TWRP and data encryption but mods and roms have to be flashed from external memories also you will not have available MTP in recovery or factory reset from it.
There is no way to disable data encryption without format data.....
Ok, I got a friends SD card and placed the Rom on there. I can now see the Rom but the trouble is, TWRP wont let me wipe Dalvik / data / system / cache as it wont mount the storage....
can I still apply the ROM?
Unable to restart your device. The integrity verification has failed. You need to reset your device to factory default settings. This will erase all of your data.
scientificharmony said:
Unable to restart your device. The integrity verification has failed. You need to reset your device to factory default settings. This will erase all of your data.
Click to expand...
Click to collapse
That is why I point it out " factory reset is recommended when flashing custom rom" if you wish to flash a custom rom you will have to format your data partition and flash the data verify file........
MAX 404 said:
That is why I point it out " factory reset is recommended when flashing custom rom" if you wish to flash a custom rom you will have to format your data partition and flash the data verify file........
Click to expand...
Click to collapse
I have tried to format/wipe data. TWRP keeps saying it failed as it cant mount the storage.
I tried flashing the stock rom via odin and it also failed as it goes to recovery to wipe data and it fails again as it cant mount storage.
scientificharmony said:
I have tried to format/wipe data. TWRP keeps saying it failed as it cant mount the storage.
I tried flashing the stock rom via odin and it also failed as it goes to recovery to wipe data and it fails again as it cant mount storage.
Click to expand...
Click to collapse
How did you flash the stock rom...which files did you use?
Wipe data is not enough you have to Wipe / FORMAT DATA and type yes....
1 To get rid of encryption, go to "wipe", format data (TWRP) (keyboard will pop up) then type "yes" and format it, then reboot to recovery
2. After flashing this, hit wipe, full wipe (this will clean all internal memory and your data will be lost
3 you can test if encryption is still enabled, if TWRP shows error about not mounting data your phone is still encrypted
Sent from my SM-G930F using XDA-Developers mobile app
Josh Smith10 said:
1 To get rid of encryption, go to "wipe", format data (TWRP) (keyboard will pop up) then type "yes" and format it, then reboot to recovery
2. After flashing this, hit wipe, full wipe (this will clean all internal memory and your data will be lost
3 you can test if encryption is still enabled, if TWRP shows error about not mounting data your phone is still encrypted
Sent from my SM-G930F using XDA-Developers mobile app
Click to expand...
Click to collapse
What version of TWRP are you guys using and what version Super SU?
Delete
Can't flash anything through recovery. (failed to mount "/cpefs" (Invalid Response)
I recently got this phone and I've been trying to install a custom rom, however, I can't seem to do anything while using TWRP. For some reason the file explorer shows no files and no /storage folder. It also says that the /system partition weights 0MB. I've already tried formatting the /data partition from EXT4 to extFAT, but it won't let me because it cannot mount the "/cpefs" partition, which I've been unable to find any information about.
I can flash the stock firmware trough ODIN, and I can flash the recovery. The internal storage works fine, but nothing shows up when I open TWRP.
I've tried formatting the data partition, repairing it, changing the partition format, wiping, installing a custom rom, installing superSU. But it won't allow me to do any of those things. Either "/data" can't be mounted, or "/cpefs" can't be mounted while formatting /data.
Cepillado said:
I recently got this phone and I've been trying to install a custom rom, however, I can't seem to do anything while using TWRP. For some reason the file explorer shows no files and no /storage folder. It also says that the /system partition weights 0MB. I've already tried formatting the /data partition from EXT4 to extFAT, but it won't let me because it cannot mount the "/cpefs" partition, which I've been unable to find any information about.
I can flash the stock firmware trough ODIN, and I can flash the recovery. The internal storage works fine, but nothing shows up when I open TWRP.
I've tried formatting the data partition, repairing it, changing the partition format, wiping, installing a custom rom, installing superSU. But it won't allow me to do any of those things. Either "/data" can't be mounted, or "/cpefs" can't be mounted while formatting /data.
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Which phone you're using?
J7 Pro?
Secondly make sure to enable OEM unlock options from the stock ROM's Developer option!
Thirdly check the recovery patches etc of the desired recovery's webiste (you're using) and flash it through the recovery if you're facing the problem!
It'll work, mostly some users said they fixed this by the above mentioned step!
If no luck, maybe someone will sort it out for ya, soon! :laugh:
Good Luck! :good:
sosukeaizen said:
Which phone you're using?
J7 Pro?
Secondly make sure to enable OEM unlock options from the stock ROM's Developer option!
Thirdly check the recovery patches etc of the desired recovery's webiste (you're using) and flash it through the recovery if you're facing the problem!
It'll work, mostly some users said they fixed this by the above mentioned step!
If no luck, maybe someone will sort it out for ya, soon! :laugh:
Good Luck! :good:
Click to expand...
Click to collapse
Thanks for your reply. The model of the phone is SM-J710MN. The OEM unlock option is enabled, otherwise I wouldn't be able to flash the recovery. I am trying to use TWRP. Where would I find a recovery patch for this model?. Everything works fine in the recovery, but it won't let me wipe/format/repair or change ANY partition. It can't mount anything, and the error that I see the most often is that it cannot mount the /cpefs partition.
Cepillado said:
Thanks for your reply. The model of the phone is SM-J710MN. The OEM unlock option is enabled, otherwise I wouldn't be able to flash the recovery. I am trying to use TWRP. Where would I find a recovery patch for this model?. Everything works fine in the recovery, but it won't let me wipe/format/repair or change ANY partition. It can't mount anything, and the error that I see the most often is that it cannot mount the /cpefs partition.
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Click to collapse
try flashing a lower version of the same frimware you've already installed e.g if the latest is nougat 7.1.1 with the recent security update, try flashing with another nougat version that is lower to the recent one's security patch #