Develop Bugs

[Q] SD Card Mounted Readonly Problem

Hi,
I keep getting this error - Mounted Readonly.... the sd card has an unexpected problem.
I installed the NextSense 3.0 Rom earlier, it worked fine for a while until i installed some apps to the sd card and then this error kept appearing.
I searched for solutions and every one involved removing apps, especially task killer. I have removed everything and the problem persists. Does anyone know what the problem is?
Failing that i'm going to wipe everything and start again, can anyone tell me how to correctly wipe and repartition everything? The instructions I found to partition are:
"Partition SD" SWAP=0, EXT2=512, FAT32=<remaining>
then "SD:ext2 to ext3"
any advice would be great, thanks!

markeh said:
Hi,
I keep getting this error - I installed the NextSense 3.0 Rom earlier, it worked fine for a while until i installed some apps to the sd card and then this error kept appearing.
I searched for solutions and every one involved removing apps, especially task killer. I have removed everything and the problem persists. Does anyone know what the problem is?
Failing that i'm going to wipe everything and start again, can anyone tell me how to correctly wipe and repartition everything? The instructions I found to partition are:
"Partition SD" SWAP=0, EXT2=512, FAT32=<remaining>
then "SD:ext2 to ext3"
any advice would be great, thanks!
Click to expand...
Click to collapse
Not sure it's all that helpful, but I had the same problem with ieftm's Official 2.2 ROM. The problem seemed to go away after I connected via USB to my pc and selected the 'Disk Drive' option on selection type on my Desire. After I disconnected, all was good.

I had this problem also. So i just popped the card in my computer and reformatted it with Gparted (in linux). If you don't use linux, i'm sure you could still format it in windows to fat32, but then you'll need to create an ext partition via the phone.

thanks for the reply, thats what happened when the problem first occured. I had it connected as a disk drive to copy some apps to the sd card and after disconnecting it the error started.
i tried it all again nothing helps

Mountainjew said:
I had this problem also. So i just popped the card in my computer and reformatted it with Gparted (in linux). If you don't use linux, i'm sure you could still format it in windows to fat32, but then you'll need to create an ext partition via the phone.
Click to expand...
Click to collapse
grrr i hate taking it out of the silicon case, incase it goes all saggy.
thanks, i'll give that a try

I also had the problem when I tested ieftm 2.2 rom, I changed to another, using recovery to format and partition the SD card, and everything went back to normal.

Any suggestions... Tried adb shell mount /sdcard and everthing else I've found...

bergkuh said:
Any suggestions... Tried adb shell mount /sdcard and everthing else I've found...
Click to expand...
Click to collapse
Like i suggesetd before. Take the card out of the phone and plug it into an sdcard reader and format it that way.

I had that issue with some of the OTA ROMs apart from Pinky.
Just connect it to pc in disk drive mode and then remove safely in windows and then select charge only and remove cable. should be fine.

I had the same problem and I repaired it with Windows Vista Tools. Right click in the drive letter, Properties, Tools and Check Disk.
It solved some problems and it worked fine in the phone.
Regards

I had to format my whole card, the Win7 repair function doesn't work for me...

based on my experience, this issue occurs if you don't do reboot after the first boot. so after you install the rom, when it asks you to set the language, reboot your phone again. after that then complete the setup process.

willy792003 said:
based on my experience, this issue occurs if you don't do reboot after the first boot. so after you install the rom, when it asks you to set the language, reboot your phone again. after that then complete the setup process.
Click to expand...
Click to collapse
not true
This happened also to me with ieft ROM. I did a few reboots before this happens to me. I tried some workarounds that people say in this thread with no luck. When connecting the phone to the PC, phone did not give me the option to mount the sdcard like disk drive. In the end, I'm formatted sdcard, deleting ext3 partition.
I'm using ap2sd of Froyo with "Mod Install Location" app from market. And this works fine. I have no problems with space in internal memory.

the quickest way i solved this problem was to unmount the micro sd card under the SD & phone storage options then remount it again. thats how i solved it, hope it helps.

ilegend said:
the quickest way i solved this problem was to unmount the micro sd card under the SD & phone storage options then remount it again. thats how i solved it, hope it helps.
Click to expand...
Click to collapse
Sry, but this function is freezed, it doesn't work. At the moment only repartitioning is working for me. It seems that problem is because of Froyo implementation. Shame

oh well
tbadoo said:
Sry, but this function is freezed, it doesn't work. At the moment only repartitioning is working for me. It seems that problem is because of Froyo implementation. Shame
Click to expand...
Click to collapse
better make a list of all possible ways to fix this prob i suppose, starting from easiest to hardest.

I have fixed this issue with the wipe of the dalvik cache! Try this!

I had the same issue. Copied everything across from the SD Card to a temp folder on my PC (Win 7 x64) then it came up with a copy error from one android.temp file, I skipped it, copied everything, formatted to FAT32 then copied everything back across and the issue was fixed.
Maybe something had locked that file and corrupted it perhaps?

simemu said:
I had the same problem and I repaired it with Windows Vista Tools. Right click in the drive letter, Properties, Tools and Check Disk.
It solved some problems and it worked fine in the phone.
Regards
Click to expand...
Click to collapse
This method worked for me too in Windows 7, was just wondering if it is a ROM problem or Froyo or APP. anyone could advise so we can avoid...?

ultracy said:
This method worked for me too in Windows 7, was just wondering if it is a ROM problem or Froyo or APP. anyone could advise so we can avoid...?
Click to expand...
Click to collapse
When it happened to me it was a corrupted app. I had downloaded an app from a site and put it on my card. I don't think it downloaded all the way, and messed it up. But the way I fixed it was moving apps and formatting the card.

Problem with Leedroid?!

Recently I flashed the latest LeeDroid rom to my HTC Desire... All was working fine until the intro screen began to loop, following the thread I applied the patch to correct the problem. However now due to the many complications with Leedroid I wanted to restore my backup! But i cant as now my phone will not detect my SD card, however my PC will?
Any suggestions? Im desperate here!
Thanks guys!

rammen4 said:
Recently I flashed the latest LeeDroid rom to my HTC Desire... All was working fine until the intro screen began to loop, following the thread I applied the patch to correct the problem. However now due to the many complications with Leedroid I wanted to restore my backup! But i cant as now my phone will not detect my SD card, however my PC will?
Any suggestions? Im desperate here!
Thanks guys!
Click to expand...
Click to collapse
It probably doesn't detect your SD card, as Leedroid, if I understand, requires specific partitions on the SD card, which I might guess you don't have. Or, you jimmied your sd card partitions, which is why you can't use it.
I would copy the sd card to the pc, partition your sd card as leedroid recommends, then copy your info back.

[Q] External SD Card Read-Only Problem

I tried researching this but wasn't successful finding same exact problem or solution. I'm on 4.4.2 Baseband N900TUVUCNB4 rooted with stock rom and ext sd fix. Everything was working fine until recently. My external SD card has inexplicably become read-only, both on the phone and on my desktop. I first noticed this last week when the phone camera began having problems writing to external SD card, and now I can't sync music to card. I've tried formatting on the phone and desktop, both quick and full but no dice. On the phone, I am able to delete individual files or folders but they reappear. On the PC, I can view but get write protect message when trying to format. Anyone else come across this or have suggestions?

ronman71 said:
I tried researching this but wasn't successful finding same exact problem or solution. I'm on 4.4.2 Baseband N900TUVUCNB4 rooted with stock rom and ext sd fix. Everything was working fine until recently. My external SD card has inexplicably become read-only, both on the phone and on my desktop. I first noticed this last week when the phone camera began having problems writing to external SD card, and now I can't sync music to card. I've tried formatting on the phone and desktop, both quick and full but no dice. On the phone, I am able to delete individual files or folders but they reappear. On the PC, I can view but get write protect message when trying to format. Anyone else come across this or have suggestions?
Click to expand...
Click to collapse
Happened with me once with a different phone/OS. Weird thing is that it was only for a particular SD card. I put a different card and it worked.
It turned out to be a problem with the card (dunno how thats possible though).

What's the brand of your SD card?

I have the exact same problem with my SGNote 2 and SanDisk 64gb micro SD card. First I lost some pics I have taken that day. I searched through with a file rescue tool but they were nowhere to be found. Deleted files reappear, and the ones I copied from internal SD dissappear.
Sent from my GT-N7100 using Tapatalk

ronman71 said:
I tried researching this but wasn't successful finding same exact problem or solution. I'm on 4.4.2 Baseband N900TUVUCNB4 rooted with stock rom and ext sd fix. Everything was working fine until recently. My external SD card has inexplicably become read-only, both on the phone and on my desktop. I first noticed this last week when the phone camera began having problems writing to external SD card, and now I can't sync music to card. I've tried formatting on the phone and desktop, both quick and full but no dice. On the phone, I am able to delete individual files or folders but they reappear. On the PC, I can view but get write protect message when trying to format. Anyone else come across this or have suggestions?
Click to expand...
Click to collapse
I had same problem. But I fixed this problem by formatting my SD card via PC. It is very bad to me Because I lost my some valuable Docs:crying:

Try file recovery softwares, you might recover it.

Lorettaa said:
Try file recovery softwares, you might recover it.
Click to expand...
Click to collapse
Thanks. I tried formatting through PC using windows and also tried using SDFormatter v4.0 but get write protect error. Thanks for the suggestions

Lorettaa said:
What's the brand of your SD card?
Click to expand...
Click to collapse
It's a SanDisk 64gb class 10.

Glad to hear I'm not the only one. Maybe we can share the solution when we find one. I'm using internal memory in the meantime for new media files, but frustrated that I am not able to use the rest of the memory available on my card.

SanDisk works fine for me, maybe your sd card is a faulty one, let's wait for a while here and maybe someone could answer your question and hopefully solve your problem

Lorettaa said:
SanDisk works fine for me, maybe your sd card is a faulty one, let's wait for a while here and maybe someone could answer your question and hopefully solve your problem
Click to expand...
Click to collapse
Thanks, Lorettaa. It seems like that's the only option right now, since I can't find any other info about it on XDA. I know Kit Kat has that design "flaw" where apps can't write to an SD card, but I can't even write to it, modify it or reformat it on a PC. I have full read access to every file, just can't do anything else

ronman71 said:
Thanks, Lorettaa. It seems like that's the only option right now, since I can't find any other info about it on XDA. I know Kit Kat has that design "flaw" where apps can't write to an SD card, but I can't even write to it, modify it or reformat it on a PC. I have full read access to every file, just can't do anything else
Click to expand...
Click to collapse
I have the exact same problem, i tried many options , used some softwares in windows to format , wipe, fix, modify. nothing works.
One possible reason for this problem is file system errors , which can be rectified using the 'error checking' option in windows and 'fixing the file system errors'
But that doesnt solve my problem, even after formatting using advanced softwares, the sd card is the same - no files deleted, no files added...
The fat as well as ext4 parition is not formattable now in anyway.so the possible conclusion is 'sd card is going to fail'.. Take a backup before you loose the read capability.

Recuva is a good, free tool (from the people that make CCleaner) to deleted recover photos.

jayOOMjay said:
One possible reason for this problem is file system errors....
Click to expand...
Click to collapse
And one possible reason for a false error condition is a corrupt system. This is normally an unlikely possibility but it is very likely on devices that have had partition images written to (i.e. a flashed ROM). If you have done all you can to the SD card and if the errors are not only on one SD card then wipe everything and load a backup. If you still get errors then wipe everything and revert to stock to see if they still occur.
Frank

couldn't install on usb storage or sd card

I tried doing the unmount trick, the one with the terminal. Still nothing
The "funny" thing is that I can install free apps without problem, but when I download Swype and Poweramp unlocker (which I bought) i keep getting this error
solutions?

Did you try a Link2SD?

More details please buddy, want to help but need to know as much as you can tell. Rom, flash details, when it first happened, etc.

EmptyArea said:
More details please buddy, want to help but need to know as much as you can tell. Rom, flash details, when it first happened, etc.
Click to expand...
Click to collapse
Hello, I have flashed the JellyKat ROM v5 on my NoteII and got a new sd card (ADATA 32GB) from ebay, the card was sealed so I hope I wasn't cheated, but randomly I see these things in my DCIM folder and I can't write to the card and the phone seems to not read the media on it music photos everything, and I can't install any apps on it or update existing app or even create a folder through the default touchwiz My Files.
I tried to format the card on the PC but can only do quick format because it loads and loads and then say windows can't format this, I also formated it via the phone it worked for a while and then stopped working again, now I don't put a card in the phone.

Doomstemplar said:
Hello, I have flashed the JellyKat ROM v5 on my NoteII and got a new sd card (ADATA 32GB) from ebay, the card was sealed so I hope I wasn't cheated, but randomly I see these things in my DCIM folder and I can't write to the card and the phone seems to not read the media on it music photos everything, and I can't install any apps on it or update existing app or even create a folder through the default touchwiz My Files.
I tried to format the card on the PC but can only do quick format because it loads and loads and then say windows can't format this, I also formated it via the phone it worked for a while and then stopped working again, now I don't put a card in the phone.
Click to expand...
Click to collapse
Seems like sdcard's memory partitions corrupted.
Try different Sdcard & update info
Sent from my GT-N7100 using XDA Premium 4 mobile app

optimusPRIME said:
Seems like sdcard's memory partitions corrupted.
Try different Sdcard & update info
Sent from my GT-N7100 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I have been using my old card from my tablet all day now and it is working fine I created a new folder and copied some files from internal storage to it to test it and it worked.
Is there a way to fix the corrupted partitions on the other card?

Jerry69 said:
I tried doing the unmount trick, the one with the terminal. Still nothing
The "funny" thing is that I can install free apps without problem, but when I download Swype and Poweramp unlocker (which I bought) i keep getting this error
solutions?
Click to expand...
Click to collapse
Yup, I also faced that kind of problem before, simply run KitKat SD fix, grant root and let the app patch the platform.xml. Reboot and try again. It worked for me. :good:

Micro SD Card says corrupted after installing Android Marshmallow in my LG G3 D858HK

Hi people. I had installed this ROM (Marshmallow 6.0) in my LG G3 D858HK dual sim. The link to the ROM is http://forum.xda-developers.com/lg-g3/development/lg-g3-d856-7-8-android-marshmallow-t3294053
But after installing the same my MicroSD card says its corrupted and asks to format it. I have formatted it several times and also by PC with a card reader. But still the issue persists. I don't get the option to set up my card as either INTERNAL or PORTABLE storage as it should be in Marshmallow ROMS. It directly starts to format as Portable storage and starts at 20% and shows successfully formatted. But still it shows that the card is corrupted. My card is working fine. I checked it. Please help.

I have the same problem and not yet identified the reason for this. Have you tried other ROMs? For me it is also happening on CM 13 and CandySix.

Answer.
Hope that helps, it worked for me with the same problem and works always....
link is:
https://www.youtube.com/watch?v=GeU0CxSWR5o
Cheers

I have the same issue with a Samsung 64GB microSD in a LG G3 d851 (T-Mobile USA). The card works fine in Windows and Android Lollipop. However I am testing several Marshmallow ROMs and so far I got this corrupted message in LightDark, Turbo and DU ROMs. However it works fine in Tesla-M. All of them are AOSP Android M ROMs. It seems that there is a problem somewhere but at least Tesla-M tells us that it can be fixed.

Fat32 lads, instead of exFAT format to fat32. The root in MM causes exFAT cards not to be read and stupidly the phone formats it to exFAT. Also the SIM contacts won't appear, instead you have to download an app to copy them from sim to phone.

I'm experiencing something similar.
I am on fulmics 4.2 on a d855. I had no problems for some weeks, than the phone started mounting and unmounting my sdcard, I tried all the suggestions I read online. Like slow formatting (tried all the types of partition), also I tried with the phone format. My best result was the read of the sdcard for just some hours, but then it started auto-expelling it.
I obviously tried with more sdcards and it's not a problem with them. Any suggestions? It's a software problem or an internal hardware problem?

I tried change the kernel a xceed and the sd card is recognized but not funcionally complete,(the radio fm do not work with xceed)
Enviado desde mi LG-D855 mediante Tapatalk

humtum0499 said:
Hi people. I had installed this ROM (Marshmallow 6.0) in my LG G3 D858HK dual sim.
The link to the ROM is http://forum.xda-developers.com/lg-g3/development/lg-g3-d856-7-8-android-marshmallow-t3294053
But after installing the same my MicroSD card says its corrupted and asks to format it. I have formatted it several times and also by PC with a card reader. But still the issue persists. I don't get the option to set up my card as either INTERNAL or PORTABLE storage as it should be in Marshmallow ROMS. It directly starts to format as Portable storage and starts at 20% and shows successfully formatted. But still it shows that the card is corrupted. My card is working fine. I checked it. Please help.
Click to expand...
Click to collapse
Hi all,
I found out that the same SD card I have since I bought the S5, May 2014, just got corrupted.
It won’t format in the phone, I use the AParted, ES File Explorer, FX Explorer and it never work.
I can still use it in a camera, PC, another Phone and it worked fine!
I put the card back in my PC, reformat in Fat32, ext4, NTFS and each time never worked in the S5.
I did the same thing with a bran new one too, same results.
It starts after updating SuperSU 2.61 to 2.71, in Marshmallow.
Few days’ work fine and then, corrupted.
I tried many options people have here and still the same result, corrupted.
I fix it (I hope) with doing a full factory reset in Marshmallow first.
Got to TWRP and did a full Wipe, Format Data and Adv. Wipe; select everything.
Yes, that clean a lot.
Use Odin and re-flash Marshmallow.
Everything is fine now, but it is only a few days that I did this, so it might still happen.
Could it be the version of SUperSU I took that has something? Or It is actually Marshmallow 6.0.1 with SuperSU ?
We might never know as the version change often.
Hope that will help someone.
VE2HRJ

VE2HRJ said:
Hi all,
I found out that the same SD card I have since I bought the S5, May 2014, just got corrupted.
It won’t format in the phone, I use the AParted, ES File Explorer, FX Explorer and it never work.
I can still use it in a camera, PC, another Phone and it worked fine!
I put the card back in my PC, reformat in Fat32, ext4, NTFS and each time never worked in the S5.
I did the same thing with a bran new one too, same results.
It starts after updating SuperSU 2.61 to 2.71, in Marshmallow.
Few days’ work fine and then, corrupted.
I tried many options people have here and still the same result, corrupted.
I fix it (I hope) with doing a full factory reset in Marshmallow first.
Got to TWRP and did a full Wipe, Format Data and Adv. Wipe; select everything.
Yes, that clean a lot.
Use Odin and re-flash Marshmallow.
Everything is fine now, but it is only a few days that I did this, so it might still happen.
Could it be the version of SUperSU I took that has something? Or It is actually Marshmallow 6.0.1 with SuperSU ?
We might never know as the version change often.
Hope that will help someone.
VE2HRJ
Click to expand...
Click to collapse
Hi all,
Here it is again, my SD card is corrupted again by the OS… but I can access the card by my PC or another phone!
So it seams to be a combination of OS 6.0.1 (Canadian Rogers), how it is rooted (Twrp) and the SuperSU free v2.76.
I’ll wipe the phone again and re-install the original Os from the carrier, no Root & no SuperSU.
I’ll wait for a week and see.
Keep you posted.
Have a great one!
VE2HRJ

Try this...
Hi All,
I rooted by phone this week also using the KingRoot method and also had the same issue. The below steps resolved it for myself and hopefully for you.
Since this is my first post I can't paste the URL to the site as the forum won't let me, so you'll have to google it, sorry about that.
Google - 32fat guiformat and look for the site 'GUI Format - Ridgecrop Consultants Ltd'
Download the program by clicking on the picture.
Run the program and select the drive letter of your memory card. Set the Allocation unit size to 32768 and untick Quick Format the press Start.
The format process takes maybe 45mins. But afterwards you'll have a full 64GB card formatted as FAT32 and will work in your phone again. Hope this helps you...
Enjoy your day.
JMP$EA31

If you can verify that more than one card works in a computer but not on the phone, and that formatting the card in the phone goes to 20 % very quickly, while afterwards going to 100 % but still tells you it´s corrupted, then indeed it´s simply the installation of Marshmellow that suddenly no longer wants to work with the file system of the card.
For me, the 32fat guiformat program told me that card was locked by another application, so I did it manually:
In windows elevated command prompt - after backing up eventual data on the card:
diskpart
list disk
(now find out which one is your sdcard, let´s call it x)
select disk x
clean
create partition primary
select partition 1
format fs=fat32
When the format is finished, if the cards size is beyond 32 GB, you´ll get a message about that the disk is too big.
At this point I managed though to make a quick format in the before mentioned FAT32 GUI Format program, and bingo - the card is recognized in the phone again.
No need for the diskpart stuff of course, if you already had success with the GUI thingy, just telling in case anyone experiences the same problems as me.
It may be that there´s a way to tell diskpart to use a different cluster size to avoid the error at the end, and also there may be a trick to make the card available to fat32gui. without first going through the diskpart step In my case though, I had the error on two different computers, on which none of them were accessing the card from any applications, disk management, win explorer etc.
Finally I´d like to add that this is not a general error for all Marshmallow phones: My huawei p8 worked fine with the card, also on Marshmallow, before I had to reformat it to fat32.
It´s a pretty sucky bug: Never mind the hassle of formatting the card, as long it works. What bothers me is the 4 GB limit of files in fat32. It´s easy to have a movie nowadays which is larger than that.
PS: Some people recommend using an app called aparted to format the card on the phone, which now has another name. I tried that, but it kept on closing itself, so perhaps it´s not compatible with Marshmallow or the same plus LG G3.

JMP$EA31 said:
Hi All,
I rooted by phone this week also using the KingRoot method and also had the same issue. The below steps resolved it for myself and hopefully for you.
Since this is my first post I can't paste the URL to the site as the forum won't let me, so you'll have to google it, sorry about that.
Google - 32fat guiformat and look for the site 'GUI Format - Ridgecrop Consultants Ltd'
Download the program by clicking on the picture.
Run the program and select the drive letter of your memory card. Set the Allocation unit size to 32768 and untick Quick Format the press Start.
The format process takes maybe 45mins. But afterwards you'll have a full 64GB card formatted as FAT32 and will work in your phone again. Hope this helps you...
Enjoy your day.
JMP$EA31
Click to expand...
Click to collapse
Thank you. It worked.

humtum0499 said:
Hi people. I had installed this ROM (Marshmallow 6.0) in my LG G3 D858HK dual sim. The link to the ROM is http://forum.xda-developers.com/lg-g3/development/lg-g3-d856-7-8-android-marshmallow-t3294053
But after installing the same my MicroSD card says its corrupted and asks to format it. I have formatted it several times and also by PC with a card reader. But still the issue persists. I don't get the option to set up my card as either INTERNAL or PORTABLE storage as it should be in Marshmallow ROMS. It directly starts to format as Portable storage and starts at 20% and shows successfully formatted. But still it shows that the card is corrupted. My card is working fine. I checked it. Please help.
Click to expand...
Click to collapse
same problem i tried everything aparted, wiping partition from twrp, cmd promt.

maybe busybox
I know this is an old thread but I've recently had this same situation but I found it was a result of installing busybox with Busybox Pro from Stericson. I used the "Smart Install" feature and selected to "Replace all symlinks" and "Clean Mode".
Basically, I believe by doing clean mode and replacing all symlinks, I had replaced needed System applets which somehow had hindered the OS from being able to correctly mount any External SD Card.
After using TWRP to factory reset (Wipe System, Data, Dalvik, Cache, Internal Storage) I Odin Flashed the latest stock firmware and then proceeded to root, etc. BTW, My phone is a T-Mobile Samsung Galaxy Note 4 SM-N910T on Net10 prepaid network.

Worked for me!!
JMP$EA31 said:
Hi All,
I rooted by phone this week also using the KingRoot method and also had the same issue. The below steps resolved it for myself and hopefully for you.
Since this is my first post I can't paste the URL to the site as the forum won't let me, so you'll have to google it, sorry about that.
Google - 32fat guiformat and look for the site 'GUI Format - Ridgecrop Consultants Ltd'
Download the program by clicking on the picture.
Run the program and select the drive letter of your memory card. Set the Allocation unit size to 32768 and untick Quick Format the press Start.
The format process takes maybe 45mins. But afterwards you'll have a full 64GB card formatted as FAT32 and will work in your phone again. Hope this helps you...
Enjoy your day.
JMP$EA31
Click to expand...
Click to collapse
Thanks so much for posting this! Solved my problem with no issue. :good:

VE2HRJ said:
Hi all,
Here it is again, my SD card is corrupted again by the OS… but I can access the card by my PC or another phone!
So it seams to be a combination of OS 6.0.1 (Canadian Rogers), how it is rooted (Twrp) and the SuperSU free v2.76.
I’ll wipe the phone again and re-install the original Os from the carrier, no Root & no SuperSU.
I’ll wait for a week and see.
Keep you posted.
Have a great one!
VE2HRJ
Click to expand...
Click to collapse
Did you ever find out a resolution to this? I'm having the same problem -- card works in computer and other devices, but not tablet which was rooted (twrp) with supersu installed. In fact, no sdcard will work now in that tablet, formatted using gui formatter mentioned earlier or not.
---------- Post added at 10:29 PM ---------- Previous post was at 10:24 PM ----------
VE2HRJ said:
Hi all,
Here it is again, my SD card is corrupted again by the OS… but I can access the card by my PC or another phone!
So it seams to be a combination of OS 6.0.1 (Canadian Rogers), how it is rooted (Twrp) and the SuperSU free v2.76.
I’ll wipe the phone again and re-install the original Os from the carrier, no Root & no SuperSU.
I’ll wait for a week and see.
Keep you posted.
Have a great one!
VE2HRJ
Click to expand...
Click to collapse
Zerokool1995 said:
I know this is an old thread but I've recently had this same situation but I found it was a result of installing busybox with Busybox Pro from Stericson. I used the "Smart Install" feature and selected to "Replace all symlinks" and "Clean Mode".
Basically, I believe by doing clean mode and replacing all symlinks, I had replaced needed System applets which somehow had hindered the OS from being able to correctly mount any External SD Card.
After using TWRP to factory reset (Wipe System, Data, Dalvik, Cache, Internal Storage) I Odin Flashed the latest stock firmware and then proceeded to root, etc. BTW, My phone is a T-Mobile Samsung Galaxy Note 4 SM-N910T on Net10 prepaid network.
Click to expand...
Click to collapse
Did this work?

kitelooper said:
Hope that helps, it worked for me with the same problem and works always....
link is:
https://www.youtube.com/watch?v=GeU0CxSWR5o
Cheers
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Is there another link for this video? The one above no longer works.

Hey guys pls help me
After custom ROM installation of 7.1 my phone Gionee M2 shows sdcard corrupted and also my sim contacts disappeared!! Pls tell me how to fix it.