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[Q] Relay b0rked Tonight

My Samsung Galaxy S Relay 4G took a dump tonight. It crashed and rebooted [normal shut off to black screen and turn back on kinda crash]. Not totally unheard of, it's electronic so things happen. Anyway, I sit there holding it while watching tv waiting for it to come back on and it doesn't! It sits at the screen that says "Samsung GALAXY S RELAY 4G exclusively from T-Mobile". I work with computers everyday so I know this a bad sign. I try a full power cycle by removing the battery and that didn't help. I tried just letting it do it's thing while I ate dinner and that didn't help. So I start Googling and just about the only stuff I can find is how to root the phone. I find things about booting to Safe Mode [didn't work, same result], things about rooting [hangs up at the Downloading... screen] and things about factory reset [not my 1st choice but it's already broke]. So I try to boot into the restore mode and it says:
failed to mount /system (invalid argument)
So I'm kinda lost. Basically the phone won't boot up, it won't boot safe mode and I can't get it to boot to recovery. Any help from the wise android community?
This is an official...not a rooted one.

Either emmc is borked or you have a bad battery....Samsung put this special battery feature in them that when the battery goes bad it acts like a brick...I had this happen once and with me battery it booted right back up....also have you tried Odin back to stock yet?

I just tried swapping to a known good battery [GF has the same phone] and that didn't fix it. I tried the Odin reset and that's how I saw the failed to mount /system error

Full error when loading Odin with Vol Up, Home and Power:
E:failed to mount /system (invalid argument)
Can't mount '/system' (invalid argument)
E:failed to mount /efs (invalid argument)
E:failed to mount /system (invalid argument)
# Manual Mode #
--Applying Multi-CSC...
E:failed to mount /system (invalid argument)
Can't mount '/system' (invalid argument)

invader138 said:
Full error when loading Odin with Vol Up, Home and Power:
E:failed to mount /system (invalid argument)
Can't mount '/system' (invalid argument)
E:failed to mount /efs (invalid argument)
E:failed to mount /system (invalid argument)
# Manual Mode #
--Applying Multi-CSC...
E:failed to mount /system (invalid argument)
Can't mount '/system' (invalid argument)
Click to expand...
Click to collapse
I fixed it by reflashing to the latest stock ROM with Samsung Kies. I had everything backed up so it was an easy restore of apps after the flash. I hope this helps someone in the future.

Stuck in TWRP

Hello people!
So, i will tell all the story, i tried to flash a ROM in my Xperia Z3 (D6643), following this tutorial, the TWRP worked fine, even after installation the message was "Installation successful" then i rebooted. But nothing, just nothing, even TWRP :crying:
He vibrates when i tri to power on in any boot method, i can also connect in PC in fastboot mode.
I had rooted and unlocked bootloader, any solutions?
Edit: I flashed TWRP again and now i can enter in recovery mode, then i tried factory reset, theres the log:
Could not mount /data and unable to find cryptofolder
Failed to mount /data (invalid argument)
Unable to recreate /data/media folder.
Updating partition details...
Failed to mount /cache (invalid argument)
Failed to mount /data (invalid argument)
...done
Unable to mount storage
Failed to mount /data (invalid argument)
Failed to mount /cache (invalid argument)
Full SELinux support is present.
Failed to mount /cache (invalid argument)
Failed to mount /cache (invalid argument)
Failed to mount /data/media/TWRP/.twrps
Failed to mount /data (invalid argument)
MTP Enabled
Failed to mount /data (invalid argument)
Formating Cache using make_ext4fs...
Failed to mount /data (invalid argument)
Updating partition details...
Failed to mount /data (invalid argument)
...done
Unable to mout storage
Edit: I noticied the internal storage is listed with 0MB. Please help...
Edit: Ok i got it, i will let the solution if someone is having the same issue
CM 14.1 dont work on Xperia Z3 D6643, that was the problem, the solution was find a compatible ROM. In this case i used this one.
Pretty simple

Help can not install root in Huawei P10 lite

I'm spanish speaking so I translate everything with google hehe
You will see I have a Huawei P10 lite WAS-LX3 with EMUI and android 8.0.0
I have opened the bootloader to root with TWRP and even there I guess
use TWRP v. 3.2.1 if I'm not wrong, since it was the only one that Huawei Multi tool accepted, I suppose that by updating recently
download Magisk v16 to root it (I am a new medium in this, some time ago I did it with a much easier j1) to be able to flash it with twrp but I get the following error (it even seems to have errors in previous processes, I get this:
Failed to mount ´/cache´ (invalid argument)
Failed to mount ´/data´ (invalid argument)
Unable to recreate /data/media Folder.
Updating partition details...
Failed to mount ´/cache´ (invalid argument)
Failed to mount ´/cust´ (invalid argument)
Failed to mount ´/data´ (invalid argument)
Failed to mount ´/system´ (invalid argument)
Failed to mount ´/vendor´ (invalid argument)
.. done
Unable to mount storage
Failed to mount ´/data´ (invalid argument)
Full SELinux support is present.
E:
unable to mount/data7media/TWRP/.twrps
Installing zip file ´/external_sd/Maigsk-v16.0.zip´
Checking for digest file...
Skipping digest check: no digest file found
***Magisk v16.0 installer***
!unable to mount partitions
- unmounting partitions
updater process ended with error: 1
error installing zip file ´/external_sd/Magisk-v16.0.zip´
Updating partition details...
Failed to mount ´/cache´ (invalid argument)
Failed to mount ´/cust´ (invalid argument)
Failed to mount ´/data´ (invalid argument)
Failed to mount ´/system´ (invalid argument)
Failed to mount ´/vendor´ (invalid argument)
...done
sorry if it was much, but I'm new I do not know if I can upload ss
but that is all the process history that I get when I want to install magisk
something similar I get with super your v2.82
help, I would really like to have the root access but with neither one of them allows me to install them and I really do not know what to do

This is a year old but may still work:
https://forum.xda-developers.com/p10/how-to/twrp-how-to-root-p10-lite-t3617418
(Google is your friend)

Failed to mount '/data ' (Invalid argument)

Hello,
I've the problem that i can't wipe everything, bacause idk...
Here are the errors:
>Failed to mount '/data' (Invalid argument)
>Failed to wipe dalvik
>Updating partition details...
>Failed to mount '/data' (Invalid argument)
>...done
>Unable to mount storage
Then I read a few other threads and tried to repair...
>Repairing Data using e2fsck...
>/sbin/e2fsck -fp process ended with ERROR: 16
>Unable to repair Data.
...and to format...
>Formating Data using mkexfatfs...
>mkexfatfs process ended with ERROR: 1
>Unable to wipe Data.
>Error changing file system.
>Updating partition datails...
>Failed to mount '/data' (Invalid argument)
>...done
>Unable to mount storage
...please help me and thanks in advance.

@UselessIdiot
Test that!

Motorola Xoom /data & /cache (invalid arguments) error

Hi to everyone,
I would like to ask for your help, i want to restore a motorola xoom tablet for my nephew. But trying to restarod i found an error with the TWRP Recovery 3.0.2 at the moment to wipe the /data & /cache partitions pops this errors.
Failed to mount "/data (invalid argument)
unable to recreate /data/media folder.
Updating partition details...
Failed to mount "/data (invalid argument)
Failed to mount "/cache (invalid argument)
...done
Unable to mount storage
Failed to mount "/data (invalid argument)
Failed to mount "/cache (invalid argument)
kernel does not have support for reading SELinux contexts.
Failed to mount "/data (invalid argument)
Failed to mount "/cache (invalid argument)
Unable to mount /data/media/TWRP/ . twrp
MTP Enable
Failed to mount "/data (invalid argument)
Failed to wipe dalvik
updating partition details...
Failed to mount "/data (invalid argument)
Failed to mount "/cache (invalid argument)
...done
unable to mount storage
I already try to install the rom.zip but i got stuck in the bootscreen logo. Looking in different blogs and forum i try the "Change file system" method to convert from ext4 to fat and go back to ext4 but it gave me the same error.
Thank you for the time to read me and to the incoming answers that i can get from all of you.