Develop Bugs

most of app won't read SDCard

Hi...
This is my first post here.
I have a problem with my SD Card.
My SDCard: 32GB microSDHC, some application like music player and gallery sometimes can't read file on my ext sd card (but my file manager can do it flawlessly)
Furthermore, sometimes it shows PREPARING SD CARD on top of the screen, although I don't even do anything. I tried to re-mount it again. But the problem still sometime occurs.
This problem started happening when I changed my stock rom to Ressurection Remix, I thought this problem occurred because of the ROM. so I change it to AOSP. But still... the problem still existed. So then, I changed it back to my stock ROM (with restore option in CWM)
But yeah... Nothing happen.
Any idea?
P.S.: Sorry for my bad english.

extSdCard/sdcard 1 issues
I have a Note II N1907 (ATT) running Liquid Smooth with a SanDisk microSD ultra 32gb. I have been trying to figure this issue out since I bought this phone 2 months ago. I screwed up the original card that I transferred from my old phone some how by trying different things to make the phone recognize it. It worked fine in my HTC Vivid. I have root and am able to use root options to try to access this card of installation, but the best I have been able to do is use it for storage. And I have to manually move things to the card, because most apps do not acknowledge that it is there (can't see it). TWRP recovery can see it after I did my first ROM Flash, but I have to use internal memory for my first ROM Flash, because recovery mode was unable to mount extSdCard.
Is there a kernel I can flash to remedy this. I am no developer, but I think the problem is that the internal memory is also SD in type. I have noticed that internal memory shows up as SDcard0 (zero) and the after market sd card is sdcard1. Maybe the phone automatically defaults to the first sdcard and ignores the other (because it is only designed to have one sd card).
I am sure others have hard this problem with this phone. Thank you for any help you can offer..

floykoe said:
I have a Note II N1907 (ATT) running Liquid Smooth with a SanDisk microSD ultra 32gb. I have been trying to figure this issue out since I bought this phone 2 months ago. I screwed up the original card that I transferred from my old phone some how by trying different things to make the phone recognize it. It worked fine in my HTC Vivid. I have root and am able to use root options to try to access this card of installation, but the best I have been able to do is use it for storage. And I have to manually move things to the card, because most apps do not acknowledge that it is there (can't see it). TWRP recovery can see it after I did my first ROM Flash, but I have to use internal memory for my first ROM Flash, because recovery mode was unable to mount extSdCard.
Is there a kernel I can flash to remedy this. I am no developer, but I think the problem is that the internal memory is also SD in type. I have noticed that internal memory shows up as SDcard0 (zero) and the after market sd card is sdcard1. Maybe the phone automatically defaults to the first sdcard and ignores the other (because it is only designed to have one sd card).
I am sure others have hard this problem with this phone. Thank you for any help you can offer..
Click to expand...
Click to collapse
As soon as I saw your reply I scanned for the words "Sandisk Ultra" and then I knew this was your issue.
I had a lot of SD card corruption with this brand and searching a lot on the web I found many stories of people having the same issues as I did.
My 32Gb Sandisk Ultra was the cause of many of my problems. 2 months on with a Lexar 32Gb, no problems (touch wood)

[Q] V510 lollipop sd card problem

Hello,
I just upgraded my gpe g pad to lollipop and am having SD card problems. My 64gb card worked perfectly with kk with the SD fix. In lollipop under settings, my card is listed correctly but when using solid Explorer or root explorer, the card is not listed when the doc viewer is displayed to give the program permission. I tried with an old 16mb card and that is listed. Was hoping lollipop fixed SD issues but doesn't seem like it. Does anyone have a solution or the same problem? I tried it with two 64gb cards both formatted exfat.

dcpyro1394 said:
Hello,
I just upgraded my gpe g pad to lollipop and am having SD card problems. My 64gb card worked perfectly with kk with the SD fix. In lollipop under settings, my card is listed correctly but when using solid Explorer or root explorer, the card is not listed when the doc viewer is displayed to give the program permission. I tried with an old 16mb card and that is listed. Was hoping lollipop fixed SD issues but doesn't seem like it. Does anyone have a solution or the same problem? I tried it with two 64gb cards both formatted exfat.
Click to expand...
Click to collapse
Try fat32, and the permissions trick.

sleekmason said:
Try fat32, and the permissions trick.
Click to expand...
Click to collapse
Thanks. It works with fat32. Shame exfat isn't supported on larger sized cards

Actually, I think the problem is because you upgraded the bootloader. Once you update the bootloader, the sdcard needs to be reformatted. Exfat might even actually still work too if the sdcard just reformatted again. I haven't tried to reformat using exfat after updating the bootloader.

Deltadroid said:
Actually, I think the problem is because you upgraded the bootloader. Once you update the bootloader, the sdcard needs to be reformatted. Exfat might even actually still work too if the sdcard just reformatted again. I haven't tried to reformat using exfat after updating the bootloader.
Click to expand...
Click to collapse
Why would you need to reformat with a different boot loader?
Anyway, I had no problems switching back and forth from KitKat to lollipop using fat32. Exfat is poorly supported. Like ntfs, there are constraints that make it more of an issue than its worth.
Why ext2 isn't supported out of the box is beyond me.

I think the bootloader affects how the files are written to the partitions, including the sdcard. If you think about when everyone said the problems started, it was when 4.4.2 was released.
I tried an experiment. I had cm11 with 20B bootloader installed. It was fine for a week. I then only updated my bootloader to 20D and within a day it started to randomly reboot.
I then kept the 20D firmware and reinstalled cm11 and reformatted my sdcard. After that, the device was fine again. But, the problem with rebooting still happened even after reinstalling cm11 until I reformatted the sdcard while using the new bootloader.
When we update the bootloader, we directly reboot into the recovery to reinstall the operating system. This formats everything except the sdcard. This is why the problems are happening with the sdcard, because it's the only thing not being formatted over.

Deltadroid said:
I think the bootloader affects how the files are written to the partitions, including the sdcard. If you think about when everyone said the problems started, it was when 4.4.2 was released.
I tried an experiment. I had cm11 with 20B bootloader installed. It was fine for a week. I then only updated my bootloader to 20D and within a day it started to randomly reboot.
I then kept the 20D firmware and reinstalled cm11 and reformatted my sdcard. After that, the device was fine again. But, the problem with rebooting still happened even after reinstalling cm11 until I reformatted the sdcard while using the new bootloader.
When we update the bootloader, we directly reboot into the recovery to reinstall the operating system. This formats everything except the sdcard. This is why the problems are happening with the sdcard, because it's the only thing not being formatted over.
Click to expand...
Click to collapse
Wild. You wouldn't think it would matter. You could test this by taking out the sdcard before upgrading if it is a read problem with the card. I'm more inclined to think it's a problem with the initial read by cyanogenmod on a card with used space. Does this happen on stock as well?
The OP has the 510 by the way. But this is very interesting.

Yes, this happens with all ROMs AFAIK. The ROM and kernel made no difference.
Edit: even updating the ROM to lollipop from KitKat did not fix the crashing. Only after reformatting the sdcard and copying the data back onto the sdcard stopped the crashing.

Deltadroid said:
Yes, this happens with all ROMs AFAIK. The ROM and kernel made no difference.
Edit: even updating the ROM to lollipop from KitKat did not fix the crashing. Only after reformatting the sdcard and copying the data back onto the sdcard stopped the crashing.
Click to expand...
Click to collapse
Does it happen when formatted fat32?
I could see only a few reasons that are even possible. One being that when you replace the boot loader it wipes the internal sdcard, and the ext sdcard but because our ext sdcard is separate from the device, and not just a separate partition, it can't remove the files and marks it as defective.
If you mount it manually using a terminal does it work?
Mount /storage/sdcard1 (as root)
And third, that it is a glitch in exfat, where something isn't getting passed correctly.
Sounds more like a bug than a security feature, but could also be that to keep something malicious from running.

Yes, the problem still happens when the sdcard is formatted as fat32. Simply changing the bootloader will still trigger the problem.
For testing purposes, I made separate installers for 20B and 20D bootloaders that don't touch any other partitions. After I install a new bootloader, I reboot into the recovery again to load the new firmware and then install my ROM (which formats the system partition during normal upgrade procedure).

Flashing roms via TWRP

I know this should be directed to the twrp forums but I wanted to get feedback from owners of the sprint lg g3 preferably using the CM12.1 android version 5.1.
I have always had this issue where I am unable to flash roms on my external sd card via twrp. Everytime I try (just tried again tonight), after over and hour of restoring, it was only at 10%. When I flash the same rom on the internal sd (memory) it only takes about 10 minutes to accomplish the entire restore, its the same way for backups too. I don't understand why I am unable to do backups and restores from my external sd. It is very inconvienant to keep moving the backups from external to internal and vice versa. Plus, I can never put more than 1 backup on my internal because they take up so much space (roughly 8gb). It doesn't matter what backup rom I flash it does the same thing. Has anyone else been able to flash roms from their external sd card and if so, what did you have to do to get it to work? I have sent my concerns to the twrp team with no replies back. I am just curious if others are having the same problem or if their has been a fix for this.
I am currently on version 2.8.5 of twrp.

Does anyone have any suggestions or feedback on this issue? Thanks

Hey mate,
You could try installing the TWRP version for the G3 from their app, rather than just the generic version for any phone. If that doesn't work, then it sounds like your SD Card could be corrupted. I backup my whole phone to my external SD Card before I flash any updates or anything else, and can install the ROM updates from my SD Card with no problems whatsoever.
All I can really think of is either a new SD Card, or the official TWRP for the G3 from their app.

iDefalt said:
Hey mate,
You could try installing the TWRP version for the G3 from their app, rather than just the generic version for any phone. If that doesn't work, then it sounds like your SD Card could be corrupted. I backup my whole phone to my external SD Card before I flash any updates or anything else, and can install the ROM updates from my SD Card with no problems whatsoever.
All I can really think of is either a new SD Card, or the official TWRP for the G3 from their app.
Click to expand...
Click to collapse
Thanks for the response. Do you have a G3 also? I have installed the official bumped version of twrp for my sprint phone and am still having issues. Just by curiousity, when you are in twrp, are you able to backup and restore directly to/from the sd card. I do not have any issues with my card other than this, I can transfer and move files, etc. I have noticed though on my 64 gb scandisk card that when it first boots up, it will say not able to retrieve location. I put a different card in the phone and that message stopped which makes me believe it has something to do with the card. That location message just started about a month or two ago.

iDefalt said:
Hey mate,
You could try installing the TWRP version for the G3 from their app, rather than just the generic version for any phone. If that doesn't work, then it sounds like your SD Card could be corrupted. I backup my whole phone to my external SD Card before I flash any updates or anything else, and can install the ROM updates from my SD Card with no problems whatsoever.
All I can really think of is either a new SD Card, or the official TWRP for the G3 from their app.
Click to expand...
Click to collapse
It turns out that it was something to do with the external SD card. I replaced it with a brand new card and i am able to backup and restore to/from the external card with twrp.

jreink01 said:
It turns out that it was something to do with the external SD card. I replaced it with a brand new card and i am able to backup and restore to/from the external card with twrp.
Click to expand...
Click to collapse
Nice, good to see it got worked out!

Android M SD Card formation stuck at 20 percent

Ive just installed the new CM 13. Everything is working fine more or less but I still got one major problem. When I format my sd card to use it as an internal storage, it gets stucked at 20 percent. After sometime it gives me a timeout error, so i cant use that Android M feature and my SD card. Does anybody know a solution?
Thanks a lot
BR

I think your not alone , it's a bug from the cm13 build for now do not sd card on cm 13
Envoyé de mon LG-D852 avec XDA Forums Pro.

You are not alone.

Thanks a lot for the repsonse Ive just realized that my sim card is not detected? Any ideas? Ive reinserted the sim card and wiped cache

Not alone. Me too! If I format as external storage shows 15MB on a 64GB card. Format as internal and gives timeout error. Stuck with a dud for now. Didn't realize when I hit update through OTA updates that it was CM13. Unfortunately, stuck with it for now.

amitabh15 said:
(...)
If I format as external storage shows 15MB on a 64GB card. Format as internal and gives timeout error.
(...)
Click to expand...
Click to collapse
I have exactly that problem, too!
So we have to wait a few days until it's fixed. Welcome to cm-nightly

same problem here,
also noticed that whatsapp won`t download or upload media.

So I was looking at the build for 11/28 for vs985 and found that... Fix mounting of non-FAT formatted SD cards (2/2) (android_packages_providers_MediaProvider) Fix mounting of non-FAT formatted SD cards (1/2) (android_frameworks_base) so the SD card mounting should be fixed if I am not mistaken because it clearly says Fix for the NON-FAT formatted SD cards.....I haven't tried the format because I have way too much music on my 64 gb card. Anyways whoever has the vs985 and is continuing to flash the nightlies keep us all up to date on the SD card fixes. I am going to revert back to 5.1.1 for my music on my sd card. Probably the only downside to the CM13 builds.
Edit:
Caught Bug/s: When taking pictures the image doesn't show. CM13 11/30 build.

The nightly I used already included these:
Fix mounting of non-FAT formatted SD cards (1/2) (android_frameworks_base)
Fix mounting of non-FAT formatted SD cards (2/2) (android_packages_providers_MediaProvider)
And it didn't work for me.
Haven't tested it with the current nightly, yet. Anyone else maybe?

Still doesn't work in latest nightly

Did you try to update today's version ?

I have updated it, of course. There is still too much to fix, so I try to take every update. [even when it doesn't makes sense ]
But I haven't tried to format the sd card since cm-13.0-20151129-NIGHTLY-d855.zip
Were there any changes? Haven't seen any related to it in the changelogs...

Doesn't Work here eather...

Im on the latest nightly and I have my full sd card after formatting

You mean "cm-13.0-20151207-NIGHTLY-d855.zip", right?
In that there was a change: vold: Fix native exfat driver support (android_system_vold)
Maybe that's what we were looking for.
http://www.cmxlog.com/13/d855/

Did anyone have any luck with the 07 build?

I'm on business trip right now and will be back home this evening (gmt+1).
Then I will try on the 07-build and report back.

Nope.
Stuck at 20%, timeout after a while.
07. Dec Build.

confirm half-working sd card on 11. dec build.
formatting and using as external drive works pretty fine. Formatting working, mounting, too.
I'm using a 64gb card and I have all available (not 15mb anymore etc).
Only probelm I found out was after formatting as internal drive.
The card got formatted, but when I was asked to move files, I got a force close of the settings. So it was not possible to let android move over files automatically.

Same here with 15dec build

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.
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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.