External memory card undetected - Galaxy S II Q&A, Help & Troubleshooting

Hi guys,
My external memory card has all of a sudden become undetectable. Inside root explorer it appears as a file and not a folder. When i try to see its permissions it is set to read only. I changed it to read write but still its not detectable. Moreover it changes to read only on every reboot.
I was on Resurrection Rom v 5.10 so i updated to v5.14 with full wipe. Still the issue remains.
I have searched on google and it appears to be something related to kitkat. I tried a few solutions like running 3rd party media scanners or editing the permission.xml but all in vain
I tried installing other kitkat roms like Neat Rom v5.8 ..now i can see the extSdCard as folder but when i open it its blank...Moreover i can see the permissions set as rwxrwxrwx in root explorer,but if i manually go to set permission for the folder it gives a popup saying "extSdCard permission cannot be set because the file system is read only"
I tried installing stock JB rom via odin but still it didnt help ..
If i try to mount external Sd card from cwm it gives error saying"Can't Mount "
Note: I tried 3 different SD cards and all went undetected where as they were detectable on other phones.
Need help guys.
Attaching few screenshots for better understanding

If you are unable to read the card's data then consider it lost. Connect it to your PC in USB mass storage mode, it should appear as a drive. If you can read the data, take a backup else leave it. Now format your external card using windows.
It should fix the issue for you.

Related

[Q] SGS III - ext. SDCard suddenly ReadOnly

Today I found - after trying to make a foto - that my SDCard doesn't seem to be not accessibl anymore - at least the cam app says this. After some ivestigation I found out that the SD is still accessible but all files and folders are in read-only mode. I checked the perms with ESFileExplorer and found no hint why (775 was set correctly) however the properties dialog of differnt file managers always says read-only. I tried to access, remove and create files/folders via pc o that card (format FAT32) w/o any problems. So I made a backup and format the card within the phone and what shall I say - it seems to work again.
Does anybody have an idea what this may have caused?
SGS III + JB 4.1.2 I9300XXELL5_I9300VFGELL1_VD2 + XXELL5_JKay_Deluxe_Stock_v14_5_4 + rooted with SGS Toolkit
Thanks a lot!!!
BTW: I used the search function already but I did not find an explainantion which matches fully to my problem
Possibly found a reason
Hm, may have found 2 possible reasons for that behaviour:
- SolidExplorer (strange behviour as after start of it a lot of files partly w/o filname (only . or @ or y) are displayed, partly not visible in other file managers and after some time I can't delete/change no file on that card anymore)
- Too high value vor SDBooster (used 1024 now reduced to 512) - but for my understanding this should not be the reason as it was working for a long time w/o problems.
Will investigate later and will inform about the outcome...
Help on this thread please.
Same problem here.. My torrents, my camera, sms backup and restore, titanium backup, everything else specially those i set as daily scheduled activities always end up having unsuccessful results..
The problem can be worked around by unmounting->re-mounting sd-card..... every 5 minutes or so...
HELP!!
format it
Why didn't I think of that in the first place? Geez..
So anyone here who really understands the problem?
Note(2)worthy response using Tapatalk HD.
I have exactly the same issue as you, at the very beginning, i notice this problem when i was taking photo and said my sdcard is not accessible, it then changes to use internal storage.
Let me list out my symptom and solution:
Symptom:
1. The sdcard looks fine, no special error thrown during android startup.
2. Just after startup, i am able to write file /copy file to the external sdcard
3. After a while, the external sdcard becomes read only. I can view/copy files from sd card, but not write/copy file to the external sdcard.
4. No apps can modify the files in external sdcard
5. By using ADB shell, type mount, and you will notice the /extSdCard is mounted as "ro", which means read only.
Description:
If you have the above symptom, your external sdcard probably have some problems...
When I was checking the mount details on step 5, i noticed that the default options is onerrors=remount-ro , it looks like the external sdcared is remounted as read-only because it has problem on external sdcard....
Solution:
I put the external sdcard to a Windows PC, and run scan disk (right click the drive >"properties" > "tools" > Check Now).
It really find problem on the FAT of the external sd card!!! It fix automatically and my external sd card is working fine now.
In my case, it doesn't need to root or format the sdcard.
Good luck!
.DayWalker. said:
Today I found - after trying to make a foto - that my SDCard doesn't seem to be not accessibl anymore - at least the cam app says this. After some ivestigation I found out that the SD is still accessible but all files and folders are in read-only mode. I checked the perms with ESFileExplorer and found no hint why (775 was set correctly) however the properties dialog of differnt file managers always says read-only. I tried to access, remove and create files/folders via pc o that card (format FAT32) w/o any problems. So I made a backup and format the card within the phone and what shall I say - it seems to work again.
Does anybody have an idea what this may have caused?
SGS III + JB 4.1.2 I9300XXELL5_I9300VFGELL1_VD2 + XXELL5_JKay_Deluxe_Stock_v14_5_4 + rooted with SGS Toolkit
Thanks a lot!!!
BTW: I used the search function already but I did not find an explainantion which matches fully to my problem
Click to expand...
Click to collapse

[Q] i9100 memory not writeable after installing 4.1.2

Hello
I installed JB 4.1.2. After that there are problems with writing to sd card / phone memory.
Different apps give different error messages. They say that memory is full and suggest to delete something or storage full or unavailable.
Memory is not full there is 10 GB free room.
I connected phone to PC and tried to copy file to SD card and phone memory. It failed without error message in both cases - it just keep copying...
I can delete files from SD card. I can't delete files through PC from phone memory: "Cannot delete filename: The storage is write-protected. Remove the write-protection and try again."
I used SD card in PC with sd card adapter - it worked perfectly.
I tried ROM Manager -> Fix permissions. It gave error message "An error occured while attemting to run privileged commands!"
Can anyone help to fix the problem?
How did you upgrade to jelly bean? If you flashed using a Custom Recovery, then you could boot back into it and look for the Fix Permissions option.
If you used Odin, you could flash a custom recovery and run fix permissions or wait for someone who knows more about this.
Sent from my GT-I9100 using Tapatalk 2
Managed to boot into CWM recovery and fix permissions but it didn't help.
Fixing permissions in CWM recovery didn't gave any error messages. ROM Manager -> fix permissions still gives error message.
Seems like some app/process/etc is blocking the sd card.
If I boot up the phone then I can access for example Dropbox files. At some moment (after ca 3 minutes) it fails to retrieve files anymore and sais "storage full or unavailable".
Still looking for help to solve the problem.
Saying "I flashed JB 4.1.2" means absolutely nothing, nada, zip, ziltch. We have MANY roms that are JB 4.1.2. When informing people of what rom/kernel you're using you need to be specific.
In any even it sounds like you have corrupted your internal memory. Try formatting internal sd/emmc in cwm. Once done re-flash rom.
If that doesn't work you will need to find pit file for your specific sgs2 model (which you also failed to mention).
re-flash & wipe.
totototototototo said:
Managed to boot into CWM recovery and fix permissions but it didn't help.
Fixing permissions in CWM recovery didn't gave any error messages. ROM Manager -> fix permissions still gives error message.
Seems like some app/process/etc is blocking the sd card.
If I boot up the phone then I can access for example Dropbox files. At some moment (after ca 3 minutes) it fails to retrieve files anymore and sais "storage full or unavailable".
Still looking for help to solve the problem.
Click to expand...
Click to collapse
Hi there,
Have you solve the storage problem? i'm having a similar issue, I can access the internal storage and the SD Card correctly, but some time after powering on (some times as low as one hour, and some times as high as one day) there is a message telling me that I cannot save anything to my internal storage, and from the view in ES Explorer, the write permissions over /sdcard are changed to read-only.
After rebooting the phone I can write again, and then from nowhere the problem appears again.
I've tried reflashing, wiping, removing the SDCard, not installing apps, but the problem continues.
I'm on the Stock JB ROM (XWLS8).
Anybody is seeing something similar?
Thanks!
miguelfc said:
Hi there,
Have you solve the storage problem? i'm having a similar issue, I can access the internal storage and the SD Card correctly, but some time after powering on (some times as low as one hour, and some times as high as one day) there is a message telling me that I cannot save anything to my internal storage, and from the view in ES Explorer, the write permissions over /sdcard are changed to read-only.
After rebooting the phone I can write again, and then from nowhere the problem appears again.
I've tried reflashing, wiping, removing the SDCard, not installing apps, but the problem continues.
I'm on the Stock JB ROM (XWLS8).
Anybody is seeing something similar?
Thanks!
Click to expand...
Click to collapse
My solution was wipe and reinstall. So far, so good - it works now.

[Q] Galaxy tab 3 SM - T210 exSDCARD

dont know if this is the right place to post my question but since im a noob the forum doesn't let me post anywhere else and this is the first time ive posted here because i usually find what im after in this forum so thanks for that !
ive read alot about the Read Write issues being experienced with Google's Android unwilling to let you use your external SD card for storage of Apps and writing to it , ive followed some tutorials about the net and even tried jamisons pre-rooted Rom for SM-T120 and everytime i get nowhere with it all .. my tab3 is now rooted but i cant write to the card .. is this going to be possible or does anyone know something i haven't tried ...
so i will tell you what ive tried for now
editing permissions.xml
loading the pre-rooted firmware
changing permissions to vold.fstab file
is there something out there !
thanks for any suggestions and help .. much appreciated Paul :good:
im running 4.1.2 Android Version and its Rooted - Build JZ054K.T210XXAMG2
I think that is not enough. I did the same ... in my research I came across the void.fstab in some devices is possible in the galaxy 3 do not know what the correct code.
I found universal files vold.fstab, but without success
riverskin said:
I think that is not enough. I did the same ... in my research I came across the void.fstab in some devices is possible in the galaxy 3 do not know what the correct code.
I found universal files vold.fstab, but without success
Click to expand...
Click to collapse
I may have just found a solution , the root method is fine by jamison ... then once that has been flashed and the tablet has restarted , go into oden again and flash the CWM recovery the same way as you do for the pre rooted firmware .. then follow these instructions i found posted by stefan !
Ok, I fixed the issue:
- Mounted USB storage (external SD) in CWM
- Backed up all files from my external SD (except a strange folder named µATA, which could not be read at all)
- Formatted the external SD under Windows
- Copied back my files to the external SD
- Restarted Android
Now the external SD is mounted r/w. Also in Root Explorer I can see that the external SD is r/w and not r/o as before.
hope this works for you as i think its working for me as ive just been able to delete a folder from widows via the USB cable .. where i didnt have access before
formula1245 said:
I may have just found a solution , the root method is fine by jamison ... then once that has been flashed and the tablet has restarted , go into oden again and flash the CWM recovery the same way as you do for the pre rooted firmware .. then follow these instructions i found posted by stefan !
Ok, I fixed the issue:
- Mounted USB storage (external SD) in CWM
- Backed up all files from my external SD (except a strange folder named µATA, which could not be read at all)
- Formatted the external SD under Windows
- Copied back my files to the external SD
- Restarted Android
Now the external SD is mounted r/w. Also in Root Explorer I can see that the external SD is r/w and not r/o as before.
hope this works for you as i think its working for me as ive just been able to delete a folder from widows via the USB cable .. where i didnt have access before
Click to expand...
Click to collapse
The device recognizes the sd as storage for apps?
I always had access to my sd on windows with USB cable, except in recovery, i use the TWRP, in recovery i can't mount SD with USB cable, but i think is an issue of TWRP or CWM.
My problem is to enable the move app to sd or recognize it has internal memory. I know that in SGS3 is possible to recognize sd card as internal memory changing the script in vold.fstb, in tab 3 it should not be so different.
PS: is a shame... i can't post links yet :angel:.
riverskin said:
The device recognizes the sd as storage for apps?
I always had access to my sd on windows with USB cable, except in recovery, i use the TWRP, in recovery i can't mount SD with USB cable, but i think is an issue of TWRP or CWM.
My problem is to enable the move app to sd or recognize it has internal memory. I know that in SGS3 is possible to recognize sd card as internal memory changing the script in vold.fstb, in tab 3 it should not be so different.
PS: is a shame... i can't post links yet :angel:.
Click to expand...
Click to collapse
yes i could see the SD external card in windows but i could not write to it in windows or delete any folders or files in windows .. but with the method used posted above i can write to the Ex sdcard and delete with no write access problems at all ... i updated to the latest firmware tonight to see if it was still working but it didnt and became like it was before ... so i tried to just flash the recovery file back on it again only and now i have access to the SDcard again and its again rooted ! ... no changes to any file
how did you root yOur device? can u give me a link please... am using tab 3 Sm T210 and ver 4.1.2

SDcard issue (files being deleted/corrupted) with KitKat 4.4.2

I'm on a S4 (I9505) phone and a lot of media files and also nandroid files are disappering from the sdcard (SDXC 64Gb).
Yes, deleted. Most probably mounting and unmounting the sdcard, or rebooting, are removing the nandroid and media files.
I've used both TWRP and Phip recoveries. They work only if I unmount the storage card and reboot. Otherwise, in the first reboot, file are gone.
Some users here in xda say we need to use short backup names. But it did not work for me.
Maybe it should be solved by the ROM side. But I'm not lucky and not finding a way to get a solution, not even using different kernel versions. Changing the WRITE_EXTERNAL_STORAGE permission suggested in many sites does not solve the issue (http://www.androidcentral.com/androi...ere-workaround). New ROMs seems to have incorporated this solution, but the problem is still there.
I also not being able to change the permissions for the mnt folder as suggested elsewhere here in xda. The operation (even my phone rooted with SuperSu) is not sucessful.
External SDcard is useless if we cannot trust on it.
Any developer could say if this problem has any solution?
Thanks.
Tested with the sdcard formated with exFat and NTFS. My ROM does not support these formats.
Return to FAT32.
Copied all files to sdcard via Windows.
When I mount (insert) the sdcard, ALL FILES (MEDIA, NANDROIDS, BACKUPS...) ARE GONE. THANKS GOOGLE FOR MAKING SUCH INTELLIGENT THING.
If anybody knows a kernel that fixes this mess (and work at S4 phone), please, help me. Thanks.
Hi,
Have the same issue with my galaxy s3 with cm11 and nightly android 4.4.3
The problem exists since 4.4.2. i hoped that a nightly update fix this problem but it didnt
My SD Card is Fat32 and a Sandisk 64gb high speed card.
Everytime if i create a file or a folder on the extrernal sd card , my files get ****ed/deleted after reboot. The old files are copied / created before this problem are still there and usable.
Any help/hints from someone who solved this problem ? Or is this a gift from google for us :crying::crying:

Cant access internal sdcard

Hey guys, I've installed several custom roms like sokp, cm, ls and so on via bmm. Once it boots up i can read the internal sdcard but cant operate on it. When i run tbk, it says that media is not mounted and the default folder in the int sdcard cant be accessed. When i try to take a screenshot, it says it was unable to capture and the storage might be in use. When i try to use the camera, it asks me to insert an sdcard. Basically i cant do anything that involves the internal storage but i have full and perfect access to the ext sdcard
When i try to open the int sdcard with a normal cm explorer it says i can only with root access mode. Idk if this helps but idk how to solve this problem
But on the stock 4.0.4 rom it all works perfectly
Could someone plz post the recovery.ftsb file in system/etc/bmm if anyone is still using bmm??? Thanks

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