Develop Bugs

[Q] Factory Settings - pre operating-system

Back story: OTA update to 4.3 killed USB on this phone, so there is no USB access to it - at all. I don't have a Windows computer, so I never downloaded ODIN to root the phone. It is completely stock, other than the unlock code obtained from T-Mobile.
I just switched from T-Mobile to AT&T, and for some reason had no data connection on the phone, even with the correct APN settings. I decided to try a factory reset. I went through the system settings menu and found the "Reset to factory settings" menu item, selected it, acknowledged the warning, input my PIN and let it go to work.
A few minutes later, it had rebooted into recovery. Sicne it was there, I took the opportunity to use the boot-loader's reset function and wiped the cache while I was at it. That was a mistake.
Now, the phone won't boot past the pulsing Samsung logo. I can get back to the recovery, and it pops up these errors - first, the droid on his back with the red triangle over him flashes "No command", and then it dumps me to the recovery menu with this scrolled at the bottom of the screen:
Code:
# MANUAL MODE #
-- Appling Multi-CSC...
Applied the CSC-code : TMB
Successfully applied multi-CSC
E:failed to mount /data (Invalid argument)
can't mount '/data' (Invalid argument)
E:failed to mount /data (Invalid argument)
E:Can't mount /data/log/recovery_log.txt
It's obviously soft bricked. I can't use ODIN to flash anything. But, since I'm at the recovery screen, it is giving me the option of loading an update from external storage - what should I put on the SD card to load in order to fix it? Can I fix it without ODIN?
edit to add:
I've already tried the stock UVUEMJC firmware from DocHoliday77's thread, but it threw a bunch of errors across the screen that I didn't catch in time and rebooted to the same point.

Try @saranhai's StockMod Rom. Put it on the External SD and flash it. If that fails, please post the error log.
On another note. can you try in Recovery and manually mount /Data Partition ?

Perseus71 said:
Try @saranhai's StockMod Rom. Put it on the External SD and flash it. If that fails, please post the error log.
On another note. can you try in Recovery and manually mount /Data Partition ?
Click to expand...
Click to collapse
Stuck @ work today, and I didn't bring it with me. I'll give that a shot when I get home tonight. I don't recall seeing a "mount" option in recovery - it's the stock Samsung recovery, I'm not sure I made that clear in the OP.
My Nexus 5 arrived last night, so this is becoming a project for me. I just want to know if I can make it work, but without USB access to it, that is probably a non-starter.

If you have Stock Rom, there isn't anything you could flash that way. At the most you could flash a Stock firmware via KIES.

PLEASE Help! Stuck on Startup screen after Odin

Hello all
I was updating my gf phone from rooted UVALJ4 or UVALH2 (Cant remember now, but it was an old Firmware) to root66 T999_UVUENC2 via Odin 3.09 on my Win 7 pc but after the odin install (which passed) I rebooted the phone and I got stuck on the Samsung logo on the start up screen. After about 10 mins I pulled the battery and tried to enter the Recovery mode, but nothing appears. Just a black screen.
So i Odin flashed the TWRP 2.6.3.1 to try to get to a recovery, but that didnt work. Still no Recovery.
I then used odin to flash the stock tmobile UVUENC2 4.3 firmware and it still gets stuck on the Samsung screen.
Next I tried to unbrick it via http://forum.xda-developers.com/showthread.php?t=2439367 using "SGH-T999 4.3 only Debrick Image" and reflashed the stock 4.3 rom, but that didnt work. :crying:
What can I try next? WHat should I do? I can still access download mode, thats about it.
Please help if you can.
Thx

I dont know how but I got the stock recovery to finally appear and now I get these errors (see Pic) what do these mean?
The recovery errors read: E:failed to mount /data ( Invalid argument) can't mount "/data" (invalid argument)
E: Can't mount /data/log/recovery_log.txt
again thx

synplex said:
I dont know how but I got the stock recovery to finally appear and now I get these errors (see Pic) what do these mean?
The recovery errors read: E:failed to mount /data ( Invalid argument) can't mount "/data" (invalid argument)
E: Can't mount /data/log/recovery_log.txt
again thx
Click to expand...
Click to collapse
Never Mind Used Unified Android Toolkit to fix recovery and flash stock rom.
Thank god for that toolkit.
...time to donate
:victory:

Mod Please delete Thread.
Thx

In the future, try a factory reset, almost all boot hangs are solved with this. Happens because of incompatible data between versions, which would make sense condidering the jump you made. Kind of makes sense with the error message too, but I'm not 100% certain there.
Be careful with the toolkit. There is no support for it and it has bricked phones in the past.

E:failed to mount /efs (Invalid argument), Did I brick my tablet?

I bought a new never used Tab 3 for the intended purpose of using it as a universal remote. I wanted to strip it down and started right away with installing custom recovery, or at least I tried. No matter what I did I was not able to get Odin to properly load TWRP. It went through all the steps but I was not able to get into recovery other than stock.
Fast forward to the next day, I finally get it to work and somewhere in this process I somehow deleted or unmounted (I really am not sure) my efs folder/partition. If I try to reset deleting all cache and wiping everything including pulling the battery for a few minutes and flashing the stock ROM again I get hung up at the "SAMSUNG' logo. I have tried several ROMs and even tried using Odin to flash a new pit file with I found HERE. When I load both the pit file and my ROM into Odin it eventually says 'FAIL'. I can flash ROMs all day with no issue.
I can only assume that the error I am getting in recovery that says E:failed to mount /efs (Invalid argument) is my issue.
Adb is not really an option for me since I have little to none, more like none at all knowledge of using it. I assume since I have flashed several tries that USB Debugging is not enabled anyway and isn't enabling it key to using ADB anyway?
I have been at this for 2 full days searching everywhere and trying everything I see. I am at a loss and hate to think this new Tab is already junk.
Any help would be greatly appreciated!

The EMCC or something like that requires replacement

andynroid said:
The EMCC or something like that requires replacement
Click to expand...
Click to collapse
So I should junk it then? I only paid $80 for this Tab.

One trial you may try to flash a Cyanogenmod based ROM see if it can write out the partitions else if no luck time to replace that item as mentioned

I have tried flashing CM and still the same issues.
I have since found out what my issue is (or at least 99% sure), I somehow wiped out my efs partition completely. So running a new pit file with Odin does nothing because the partition is gone.
This is fixable and easy for someone who knows shell, but I don't. So now I am trying to figure it out. It's a matter of pushing the 6 following files to the phone using the adb push [file] /sbin/ command using adb which I have done, now I need to figure out the rest.
e2fsck
mke2fs
parted
resize2fs
sdparted
tune2fs

T
you can't do that in the way you think, it requires disassembling the recovery image, making modifications and repacking then reflashing the image.
If you are using an older recovery, namely twrp, install a newer recovery , check @nels83 's thread for a "modern" twrp build.
You can also try one of my philz builds.
Being as you have been abusing Odin, you may actually have damaged your tab.
BUT if you are connecting to wifi without a problem then it's unlikely that you have damaged your efs partition. It's more likely an error with the recovery build you are using, probably in the fstab.
m

TWRP failing to mount /data + bootloop

Hi all,
After spending all my morning looking at various solutions I've resulted in opening a new thread.
I was trying to install a stock rom this morning however was stuck in a bootloop on the LG logo.
Trying to go back into recovery resulted in a black screen after the TWRP logo.
I was attempting to re-install TWRP to see if that would fix the problem however I only managed to get into Download Mode (is this the same screen as the Bootloader?) and adb/fastboot couldn't find the device.
Magically, TWRP boots up now however in the log it states the following:
Code:
E: Could not mount /data and unable to find crypto footer.
E: Unable to mount /data
E: Unable to recreate /data/media folder
E: Unable to mount storage
E: Unable to mount /data/media during GUI startup
E: Unable to mount /data/media/TWRP/.twrps when trying to read settings file
If anyone can point me in the right direction in how to resolve this I would be grateful.
Regards,
Ash

AshleyNG2 said:
Hi all,
After spending all my morning looking at various solutions I've resulted in opening a new thread.
I was trying to install a stock rom this morning however was stuck in a bootloop on the LG logo.
Trying to go back into recovery resulted in a black screen after the TWRP logo.
I was attempting to re-install TWRP to see if that would fix the problem however I only managed to get into Download Mode (is this the same screen as the Bootloader?) and adb/fastboot couldn't find the device.
Magically, TWRP boots up now however in the log it states the following:
Code:
E: Could not mount /data and unable to find crypto footer.
E: Unable to mount /data
E: Unable to recreate /data/media folder
E: Unable to mount storage
E: Unable to mount /data/media during GUI startup
E: Unable to mount /data/media/TWRP/.twrps when trying to read settings file
If anyone can point me in the right direction in how to resolve this I would be grateful.
Regards,
Ash
Click to expand...
Click to collapse
Looks like you trying to install stock Rom, Given the account you used a flashable zip. It didnt install all the way. and now your stuck with a messed up unstable device......
If you can get into TWRP, wipe everything at least 2 times.. Then install a Flashable ROM/gapps ect..
If you cant get into TWRP and only into Download mode.. Then you will have to flash stock kdz file...............
you can find all types of guides on that around here............

Eliminater74 said:
Looks like you trying to install stock Rom, Given the account you used a flashable zip. It didnt install all the way. and now your stuck with a messed up unstable device......
Click to expand...
Click to collapse
Thanks for your response, once I got into TWRP I couldn't wipe anything as it couldn't mount any partition nor could I flash anything from the external sd.
When I plugged it in there was no internal memory so I decided to use the TOT restore method to go back to stock which was successful and now I've got my custom stock rom back on.

[GT-I9190] Possible brick?

Hello everyone.
I'm not sure what to title this post, as I'm not entirely sure what the problem is.
My S4 Mini (GT-I9190) froze last night while using an app. I pulled the battery out then put it back in. For a few hours, it wouldn't power up at all. It eventually managed to power up, but that's when the real problems started... I cannot remember the exact steps I took towards probably nuking my phone, but right now, the situation is as follows:
I come across the following errors when attempting to do anything:
Failed to mount /cache (Invalid argument)
Failed to mount /data (Invalid argument)
Failed to mount /efs (Invalid argument)
Failed to mount /persist (Invalid argument)
Unable to mount storage
I occasionally get the following error:
E: failed to write /dev/block/mmcblk0p15: I/O error
I was running LineageOS 15.1 before everything blew up, with the latest TWRP recovery, and I have a stock ROM from SamMobile (4.4.2, I believe). I've tried flashing it to my phone, but that doesn't work. No amount of wiping works (though, admittedly, I may be doing it all wrong). I've read around, and my problem is that I don't know where to start, if there is a fix at all. This is my only phone, and I'd like to get it back ASAP.
Thanks.

DolfWick said:
Hello everyone.
I'm not sure what to title this post, as I'm not entirely sure what the problem is.
My S4 Mini (GT-I9190) froze last night while using an app. I pulled the battery out then put it back in. For a few hours, it wouldn't power up at all. It eventually managed to power up, but that's when the real problems started... I cannot remember the exact steps I took towards probably nuking my phone, but right now, the situation is as follows:
I come across the following errors when attempting to do anything:
Failed to mount /cache (Invalid argument)
Failed to mount /data (Invalid argument)
Failed to mount /efs (Invalid argument)
Failed to mount /persist (Invalid argument)
Unable to mount storage
I occasionally get the following error:
E: failed to write /dev/block/mmcblk0p15: I/O error
I was running LineageOS 15.1 before everything blew up, with the latest TWRP recovery, and I have a stock ROM from SamMobile (4.4.2, I believe). I've tried flashing it to my phone, but that doesn't work. No amount of wiping works (though, admittedly, I may be doing it all wrong). I've read around, and my problem is that I don't know where to start, if there is a fix at all. This is my only phone, and I'd like to get it back ASAP.
Thanks.
Click to expand...
Click to collapse
unusual to get all those error messages.
What msg do you get when you try to flash stock?
(edit; suppose you mean same msg when flashing stock also, have you tried with pit file (unseeing full stock rom aka repair)

IronRoo said:
unusual to get all those error messages.
What msg do you get when you try to flash stock?
(edit; suppose you mean same msg when flashing stock also, have you tried with pit file (unseeing full stock rom aka repair)
Click to expand...
Click to collapse
I have not used a pit file. In fact, I know neither what it is nor how to use it. Would you be so kind as to either explain it to me or direct me to a post that discusses it? I believe I have every other file needed to get things going, but nothing I've done works, so this suggestion may help. Thanks.

DolfWick said:
I have not used a pit file. In fact, I know neither what it is nor how to use it. Would you be so kind as to either explain it to me or direct me to a post that discusses it? I believe I have every other file needed to get things going, but nothing I've done works, so this suggestion may help. Thanks.
Click to expand...
Click to collapse
PIT stands for Partition Infrmation Table, flashing with this file (.pit) will repartition your phone. It must be for your exact phone model.