Develop Bugs

[Q] Unable to mount cache, system, data

Hey guys, I seem to have soft-bricked my AT&T S3.
I was running Paranoidkangdroid 2.32 (based on CM10.1, 4.2.2), but started having some stability issues. Thinking it was time to start fresh with a new ROM, I downloaded SlimKat 4.1 and tried to install it following these instructions.
Upon rebooting, my phone hit the SlimKat loading screen and never finished booting. I rebooted to recovery, and saw errors saying it was unable to mount /cache, /data, and /system. I still have access to recovery and download, and have tried flashing and reflashing a variety of different ROMs, both custom and stock, but haven't been able to get past those errors.
When flashing from recovery, I get errors saying the partitions aren't able to be mounted. I can flash ROMs from Odin, and they do seem to be installing (no errors in Odin, and the Current Binary setting does change depending on whether it is a stock or custom ROM).
Best I can tell, my partitions are screwed up. Any advice on what I did wrong and the best way to proceed? If the partitions are screwed up, is there a way I can rebuild the partitions through the shell?

ericmerl said:
Hey guys, I seem to have soft-bricked my AT&T S3.
I was running Paranoidkangdroid 2.32 (based on CM10.1, 4.2.2), but started having some stability issues. Thinking it was time to start fresh with a new ROM, I downloaded SlimKat 4.1 and tried to install it following these instructions.
Upon rebooting, my phone hit the SlimKat loading screen and never finished booting. I rebooted to recovery, and saw errors saying it was unable to mount /cache, /data, and /system. I still have access to recovery and download, and have tried flashing and reflashing a variety of different ROMs, both custom and stock, but haven't been able to get past those errors.
When flashing from recovery, I get errors saying the partitions aren't able to be mounted. I can flash ROMs from Odin, and they do seem to be installing (no errors in Odin, and the Current Binary setting does change depending on whether it is a stock or custom ROM).
Best I can tell, my partitions are screwed up. Any advice on what I did wrong and the best way to proceed? If the partitions are screwed up, is there a way I can rebuild the partitions through the shell?
Click to expand...
Click to collapse
What stock ROM did you try to flash via Odin and did you get the <PASS> message? If you did, then it would seem the flash was successful. Can you try booting into recovery and doing a hard wipe/reset? Unless your phone has hardware issues, flashing a complete stock image should update all partitions.
Finally, if you were already on Android 4.3, you may try doing a stock restore using the instructions in the following thread ...
http://forum.xda-developers.com/showthread.php?t=2658486

Stock ROMs
Larry2999 said:
What stock ROM did you try to flash via Odin and did you get the <PASS> message? If you did, then it would seem the flash was successful. Can you try booting into recovery and doing a hard wipe/reset? Unless your phone has hardware issues, flashing a complete stock image should update all partitions.
Finally, if you were already on Android 4.3, you may try doing a stock restore using the instructions in the following thread ...
http://forum.xda-developers.com/showthread.php?t=2658486
Click to expand...
Click to collapse
The ROM I had previously installed was based on 4.2.2, so I'm not sure the instructions in that thread will apply...
I have tried installing the UCDLK3 ROM, as well as a couple of custom ROMs. I'm about to try another stock ROM (UCALEM), and will report back with the results in a few minutes.

ericmerl said:
The ROM I had previously installed was based on 4.2.2, so I'm not sure the instructions in that thread will apply...
I have tried installing the UCDLK3 ROM, as well as a couple of custom ROMs. I'm about to try another stock ROM (UCALEM), and will report back with the results in a few minutes.
Click to expand...
Click to collapse
Sad times.
I just tried installing the UCALEM stock ROM with Odin. Everything seemed to go well, and it finished with no errors and a "PASS!" result.
When my phone rebooted, a screen briefly popped up with red text. It didn't stay up long, but the errors I saw were similar to what I had seen before (unable to mount, etc.). The background was the red exclamation with the android robot lying down. The phone quickly rebooted, and sat with a black screen. When I pulled the battery out and powered it back on, it tried to enter recovery mode on its own, but only flashed the Samsung Galaxy S3 screen and remained on a black screen.
I can still access download mode, and the Current Binary now reads "Samsung Official." My phone did this same thing earlier when I flashed another stock ROM, and I was able to get back to recovery mode by flashing a fresh instance of CWM.

ericmerl said:
Sad times.
I just tried installing the UCALEM stock ROM with Odin. Everything seemed to go well, and it finished with no errors and a "PASS!" result.
When my phone rebooted, a screen briefly popped up with red text. It didn't stay up long, but the errors I saw were similar to what I had seen before (unable to mount, etc.). The background was the red exclamation with the android robot lying down. The phone quickly rebooted, and sat with a black screen. When I pulled the battery out and powered it back on, it tried to enter recovery mode on its own, but only flashed the Samsung Galaxy S3 screen and remained on a black screen.
I can still access download mode, and the Current Binary now reads "Samsung Official." My phone did this same thing earlier when I flashed another stock ROM, and I was able to get back to recovery mode by flashing a fresh instance of CWM.
Click to expand...
Click to collapse
To follow up again, I was able to re-flash TWRP using Odin. Once that was done, the phone no longer tried to boot straight to recovery. I was able to three finger into TWRP, though it took a super long time for it to boot.
Here's the console log taken from TWRP once it boots:
Code:
E:Could not mount /data and unable to find crypto folder.
E:Unable to mount '/data'
E:Unable to recreate /data/media folder.
Updating partition details...
E:Unable to mount '/system'
E:Unable to mount '/data'
E:Unable to mount '/cache'
E:Unable to mount internal storage.
E:Unable to mount /data/media during GUI startup.
E:Unable to mount '/cache'
Full SELinux support is present.
E:Unable to mount '/cache'
Running boot script...
Finished running boot script.
E:Unable to mount '/cache'
E:Unable to mount /data/media/TWRP/.twrps when trying to read settings file
E:Unable to mount '/data'

[HELP]S4 mini i9192

Hi fellas,
I'm having problems with my S4 mini duos (GT-I9192).
I'm having a bootloop all the time and can't get it turned on, I tried going into recovery mode and tried to wipe/factory reset but it says:
#MANUAL MODE#
-- appling multi-CSC...
Applied the CSC-code: TTT
did not match sized '/system/csc/common/system/csc/others.xml (no data available)
-- Wiping data...
Formatting /data...
E: format_volume: make_extf4fs failed on /dev/block/platform/msm_sdcc.1/by-name/userdata
Formatting /cache...
E: format_volume: make_extf4fs failed on /dev/block/platform/msm_sdcc.1/by-name/cache
Data wipe complete.
Tried to flash and official ROM from sammobile with odin v3.10.7 but still the same problem it bootloops all the time, tried also to flash TWRP but couldn't even flash it.
I would appreciate a little help.
Best regards,

you should try this
http://forum.xda-developers.com/showthread.php?t=2494435
also you should check @k2wl he has some really good roms

k4cyrus said:
you should try this
http://forum.xda-developers.com/showthread.php?t=2494435
also you should check @k2wl he has some really good roms
Click to expand...
Click to collapse
I tried it, in odin it shows that passed but when I go into recovery boot it shows the original recovery and still the same result when I try to wipe/factory reset.

Have you flashed a different rom as well

k4cyrus said:
Have you flashed a different rom as well
Click to expand...
Click to collapse
Yeah maybe 4 or 5 roms from sammobile but still the same, someone says that the power switch is causing the bootloop but i'm sure that it isn't faulty, I have tried it with voltmeter and it is working properly. I can't even flash TWRP, Phliz or CWM.

s3 will not boot up to the user interface mode

I am trying to dowload photos to my computer, but it will not boot up to the appropriate stage in order to dowload photos. Phone seems to be stuck in a boot loop. it will start to boot up and then randomly shut off at different stages. Sometimes it gets to the at&t logo, while other times it may get to the samsung galaxy sIII image, etc. i tried going to the recovery mode, and not sure which option to choose, then an error at the bottom appears and saying invalid data error. Is there any way to fix this?
I am trying to recover old info/pics that are on the phone
thanks

Do you invalid data partition when you try to get into recovery mode?
Was the phone ever dropped?

audit13 said:
Do you invalid data partition when you try to get into recovery mode?
Was the phone ever dropped?
Click to expand...
Click to collapse
yes the phone has been dropped. sometimes the phone will start to boot up just by plugging in the battery. In recovery mode, i can see all the options like, wipe partions, update, etc . then the andorid guy is like on the floor sideways . under the andorid guy, it says E: failed to mount/data (invalid argument). can't mount/data (invalid argument) , can't mount /data/log./log_recovery.txxt

Sounds like the memory chip may be damaged. Once thing to try and get it going would be to try and flash TWRP, boot into TWRP, mount data, and try to recover your data. Can't think of any other way to try and recovery data.

Doing wipe data option doesnt delete files in /sdcard, only your apps. You can use odin to get your phone working, but using odin will usually delete everything.

Does not boot. Corrupted /data parition?

Hello,
my Samsung Galaxy S4 mini with bliss ROM stated to turn off spontaneously and sometimes it didn't start again (the Samsung logo appeared and then the phone went dead, it was impossible to enter recovery mode, download mode shut down itself immediately). After several tries, it booted normally. This happened again - and I found out it was a bad power button, which I replaced. Now it is possible to enter both recovery mode and download mode with no problems. However the main OS doesn't boot up. So I tried to do a full wipe in recovery mode and CWM recovery rebooted the phone, when it was trying to format /data partition. So I tried to flash stock firmware with ODIN. It also didn't boot up, but at least the stock recovery gave me a hint what is wrong. When I perform full wipe, I get error: "E:format_volume: make_extf4fs failed on /dev/block/platform/msm_sdcc.1/by-name/userdata"
I tried to flash the phone again, this time with a PIT file and let ODIN to reformat the partitions. However, no change. How can I fix it?

Try twrp

Stuck in boot screen, failed to mount anything

Hi guys,
so yesterday from one moment to another, my S4 Mini LTE with Lineage 15.1 (https://forum.xda-developers.com/galaxy-s4-mini/orig-development/rom-lineageos-15-0-s4-mini-t3702272 ) just crashed while I was just using it normally. No response at all, so I removed the battery, which I think wasn't a good idea. After that, firstly nothing worked, no charging, no usual booting and no booting into recovery. Simply the phone didn't do anything.
This morning I managed to resurrect it a little, with removing the battery and pressing the ON button while putting it back in. After like 30 tries it worked.
But now I'm stuck in the Lineage boot screen. I can boot into TWRP again, but it seems to take unusually long. In TWRP it says, my Internal Storage is 0mb. Also it failed to mount data, cache, efs, persist and storage, only system seems to be fine.
I tried Format Data, and changing File System of data and cache, which where solutions I found on google, but nothing seems to have any effect. Also I reflashed TWRP using Odin, but that didn't change anything.
What can I do? I don't believe it is bricked so badly, I can't fix it anymore. I guess it's got something to do with encrypted storage, but the usual solutions won't work.
Many thanks in advance.

Update:
Tried some more things:
Restore Back up -> not working... can't mount /cache, /data, etc.
Flash Stock Recovery through odin -> success in Odin, still no difference.. TWRP remains on the phone
Flash Stock ROM -> success in Odin, but nothing changed
Unbrick through this guide
-> with bootloader -> odin fails cause my bootloader is v2
-> without bootloader -> again success in odin, but nothing changed
I think unless I find some v2 bootloader, it's unfixable.... still appreciate any suggestions though