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Is anybody else experiencing repeated failure of micro SD cards? EVO has been rooted and working great since last year. Suddenly, in February, my 32GB sd card failed on a reboot from flashing an early CM7 ROM. The Message is "SD Card blank or has unsupported filesystem." I called Sandisk and they sent out a replacement. Two weeks ago, same failure. Called Sandisk again and they are reluctantly sending another card (supposed to arrive today). In the meantime I was running with my 8GB that came with the phone. I just installed the stable CM7 release, restored data via clockwork and BOOM! SD card failure again. So, is anyone else getting this? Three SD cards in 2 months is kind of extreme. I'm trying to determine if it's the hardware, the ROM, or a series of bad cards (unlikely).
Some additional details:
All cards are Sanddisk
Recovery is ClockworkMod 3.0.0.5
HBOOT is 0.93.0000
Card is not readable via a card reader
its a bug with CM7
Thanks. I searched the forums, but was unable to find anything. Do you have a link to a discussion about it? Thanks.
sorry i dont have a link, it was some thing i read. a simple reboot was the suggestion and it worked for me also. good luck to you
buddhist said:
Is anybody else experiencing repeated failure of micro SD cards? EVO has been rooted and working great since last year. Suddenly, in February, my 32GB sd card failed on a reboot from flashing an early CM7 ROM. The Message is "SD Card blank or has unsupported filesystem." I called Sandisk and they sent out a replacement. Two weeks ago, same failure. Called Sandisk again and they are reluctantly sending another card (supposed to arrive today). In the meantime I was running with my 8GB that came with the phone. I just installed the stable CM7 release, restored data via clockwork and BOOM! SD card failure again. So, is anyone else getting this? Three SD cards in 2 months is kind of extreme. I'm trying to determine if it's the hardware, the ROM, or a series of bad cards (unlikely).
Some additional details:
All cards are Sanddisk
Recovery is ClockworkMod 3.0.0.5
HBOOT is 0.93.0000
Card is not readable via a card reader
Click to expand...
Click to collapse
I have had a similar problem with my 32 gb card.
Patriot card, Amon Ra 2.3, hboot 0.76, card worked in my laptop, and now is recognized in my phone, but Titanium backup will not recognize any app data elements
Delete the LOST.DIR on the sdcard while in recovery. Tends to fix it.
I posted this in one of the accessory threads, but it probably belongs in here.
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I got a lexar 32gb class 10 microsd about a bit over a month ago. The first one worked great for about 3-4 weeks, then I started getting data corruption. Reformatted, copied data back, lasted 3 days. Now mind you, I always shut the phone down properly.
Rma'd it, got the replacement. Lasted all of 2 days before file corruption began again.
Lexar insisted I send my old one back before the send a replacement out. Fine. This ordeal took nearly 10 calendar days. During this time I had the stock sandisk 8gb class4 card. The data copied to the lexar is identical to that which was on the sandisk. Only difference is, I had no corruption what so ever with the sandisk.
Thus far, the conclusion i've drawn is that these bigger cards (or faster?) don't seem to work well as a virtual hard drive. They may be fine for storing pics or mp3s. However, the evo uses the sd card more so as random access read/write type storage, with the card constantly being updated by receipt of email, and other system programs/processes. Maybe this is what does the card in.
finally someone with the same problem as me...i thought i was the only one my 32gb card does the same was there a fix for it??
My 16GB Transcend card just died a couple of days ago. Sending it in today for replacement. I can access most folders from a USB card reader, but the larger folders can't be accessed.
wrxlvr said:
My 16GB Transcend card just died a couple of days ago. Sending it in today for replacement. I can access most folders from a USB card reader, but the larger folders can't be accessed.
Click to expand...
Click to collapse
i've been flashing every other cm7 nightly since the beginning wiping every 3 or 4th nightly... same 8gb SD card.. no issues.....
gpz1100 said:
However, the evo uses the sd card more so as random access read/write type storage, with the card constantly being updated by receipt of email, and other system programs/processes. Maybe this is what does the card in.
Click to expand...
Click to collapse
This is actually very interesting. Earlier this morning I was thinking about App2SD and started looking into using it, and saw comments that peoples cards were getting nuked after using it (albeit only a few people). This kind of jives with the above quote... but take that sentiment with a grain of salt, admittedly I'm still an Android noob.
To those who are experiencing corrupted card issues, are you using App2SD?
Wrathx, I am set up with an ext3 partition using the dark tremor's a2sd scripts. I only have the apks on there however. The rest of the /data content (config files, databases, etc) is still on the phone's internal memory - for the same reasons above. I figured the internal memory is better (faster?) equipped to handle ever changing content. So in essence, once the apk is on the ext3 partition, it's accessed as a read only process.
My 8gb stock sandisk card is partitioned identically to the way the 32GB was, 32mb swap, 512 mb ext, and the remainder as /sdcard. It's also being used in the same way (only apps moved to it, no other content). Again, no issues what so ever with it.
Now, the the cache and dalvik cache are both set up to use the phone's internal /cache partition (for reasons above). I mention this because dt a2sd script gives you a number of options on how to set this up. Some people may have their cache and/or DC on the ext partition in addition to possibly having the actual /data content including settings on there as well.
so is there a fix r is everyone running into the problem getting a replacement???
When my SD card failed I took it out and put it in my husbands phone ( LG optimus) and let it power all the way on then took it out and put it back in my evo and it worked perfectly after that. It's a 32 gb sands....hope this helps
Sent from my PC36100 using XDA Premium App
Just blew up card number 4. This one was a brand new SanDisk 32 GB. It failed when I powered up the phone. Just as a precaution I did not do anything out of the ordinary other than put some music on the phone. Did not transfer apps to SD. I'm going to restore to stock today and exchange the phone as a precaution. Since there is no clear evidence of the cause (even though it only started happening since switching to CM6/CM7) I may just go with straight stock root for now. I'll update if that causes any failures. I seems to only take a couple of weeks to get a failure so stay tuned.
popper668 said:
sorry i dont have a link, it was some thing i read. a simple reboot was the suggestion and it worked for me also. good luck to you
Click to expand...
Click to collapse
has this worked for anyone? Once i reboot i just get 'blank sdcard.' this is the 3rd card that got hosed for me. all 16gigs. really wondering if its the hc cards, cm7, or just my phone.
My repeated failures turned out to be a bad slot on the phone. I would unroot the phone, restore stock, and exchange it. Since getting a replacement I have had no issues.
I've been searching all over for a couple days now and I can't find any solution only people with similar but not exact same problem I'm having. Out of the blue a couple days ago the fat32 partition on my 32GB class10 patriot SD card unmounted and won't mount at all. However the ext4 partition mounts just fine and continues to work as it always has. I also can't plug the card directly into my PC because the adapter that came with the micro SD card appears to not work. My PC doesn't think there is an SD card in it. I tried it with a known good SD card (the 16GB samsung SD card that came with the phone. Which when inserted into the phone mounts and can be used like expected. No new apps where installed or changes made to my phone or the SD card before it stopped working correctly. The same apps and what not have been in use for as long as I have had the 32GB SD card. In fact the currently in use version of CM10.1 has been is use for the last month with no issue regarding the SD card. When I remove the card a notification shows up telling me to insert an SD card. And when I insert the 32GB card the checking SD card notification shows up an a second or two after the SD card is safe to remove notification shows up as if I had told it to unmount the SD card. If I tap on mount SD card in settings the same thing happens. And it also happens after a reboot. CWM can't mount the SD card either. What can I do to fix it so the fat32 partition is usable again?
StoneRyno said:
I've been searching all over for a couple days now and I can't find any solution only people with similar but not exact same problem I'm having. Out of the blue a couple days ago the fat32 partition on my 32GB class10 patriot SD card unmounted and won't mount at all. However the ext4 partition mounts just fine and continues to work as it always has. I also can't plug the card directly into my PC because the adapter that came with the micro SD card appears to not work. My PC doesn't think there is an SD card in it. I tried it with a known good SD card (the 16GB samsung SD card that came with the phone. Which when inserted into the phone mounts and can be used like expected. No new apps where installed or changes made to my phone or the SD card before it stopped working correctly. The same apps and what not have been in use for as long as I have had the 32GB SD card. In fact the currently in use version of CM10.1 has been is use for the last month with no issue regarding the SD card. When I remove the card a notification shows up telling me to insert an SD card. And when I insert the 32GB card the checking SD card notification shows up an a second or two after the SD card is safe to remove notification shows up as if I had told it to unmount the SD card. If I tap on mount SD card in settings the same thing happens. And it also happens after a reboot. CWM can't mount the SD card either. What can I do to fix it so the fat32 partition is usable again?
Click to expand...
Click to collapse
Have you tried formatting the SD card in recovery?
As I said I can't mount it with CWM either. The card contains the data for my mSecure passwords as that app was forced to the SD card due to JB changes in android so I can't format it until I can recover the data on it. I need a solution to access the data before I can reformat it assuming that it needs to be reformatted. The SD card was supposed to be this fail safe thing and I didn't need to make backups of it as it was the backup storage stuff. So now I'm all freaking out because I can't access it for all the backed up data on top of the data for one critical app that was forced to reside on it. The good news is that only a few apps data is effected by this the bad news is those apps were all very important. I just don't understand why this has happened. And if using a cloud source such as box will be any more secure and safe than using the SD card in light of this; now I don't trust not losing data in the future on a source that was supposed to not have this sort of thing happen.
Maybe the SD card just went bad. Sorry I couldn't be of more help.
DynamicN said:
Maybe the SD card just went bad. Sorry I couldn't be of more help.
Click to expand...
Click to collapse
No problem, it's a problem no easily solved, and is a long shot finding anyone who will be able to help. I looked at dozens of sites and forum threads and all sorts of other stuff from goggle searches and couldn't find a solution to get it to mount in either the phone or on my PC to recover the data from it and find out for sure if it is a bad card or not. It might still be under warranty. If it's not I'll be ticked considering how much it cost and how little time I've had it.
StoneRyno said:
No problem, it's a problem no easily solved, and is a long shot finding anyone who will be able to help. I looked at dozens of sites and forum threads and all sorts of other stuff from goggle searches and couldn't find a solution to get it to mount in either the phone or on my PC to recover the data from it and find out for sure if it is a bad card or not. It might still be under warranty. If it's not I'll be ticked considering how much it cost and how little time I've had it.
Click to expand...
Click to collapse
Try installing Recuva on your PC, if this program doesn't work for you then you might wanna try another more advanced recovery program like R-studio v6 (Shareware) which is easy to use since it's GUI based.
or testdisk-6.14-WIP (Freeware) which includes testdisk_win.exe for partition recovery and photorec_win.exe for files and media recovery, but it's kinda complicated since it's based on Command Prompt or DOS! so you need to google for a guide for how to use it.
StoneRyno said:
No problem, it's a problem no easily solved, and is a long shot finding anyone who will be able to help. I looked at dozens of sites and forum threads and all sorts of other stuff from goggle searches and couldn't find a solution to get it to mount in either the phone or on my PC to recover the data from it and find out for sure if it is a bad card or not. It might still be under warranty. If it's not I'll be ticked considering how much it cost and how little time I've had it.
Click to expand...
Click to collapse
Are you still having the problem? I had the same problem, and I found a solution to it.
chromeplaya said:
Are you still having the problem? I had the same problem, and I found a solution to it.
Click to expand...
Click to collapse
Wow I somehow never got notified of this post seeing as I'm just now noticing a reply from months ago. Yes I still can't mount the SD card. I took it out and returned to the stock one that came with my phone. I still have the card as I need to recover the data from it and if not possible wipe it somehow so that I can warranty exchange it. Please do let me know what your solution is so that I can try it and see if it works.
Refresh my memory on what the problem was. This was a while ago lol.
chromeplaya said:
Refresh my memory on what the problem was. This was a while ago lol.
Click to expand...
Click to collapse
The SD card won't mount in my samsung epic and my windows PCs. This was a sudden without warning signs and with no apparent cause. One moment it was fine and the next moment poof. I was looking for a solution to gain access to the files on it to recover whatever I can and if possible repair the card so that it works again. Assuming that it's not a failure of the card itself. It is within the warranty and well within the life expectancy of it. So I suspect it is not a failure of the card itself. I have the option of using ubuntu or other USB stick bootable options for tools as needed.
I've been spending waaay to much time trying to get this phone to work as I had expected with previous phones (even my LG G2x) giving me less problems. I recently bought a Sandisk 32gb, class 10 micro sd card and after transferring old music, pictures and videos from my old LG G2x with a 16gb card, placing files from my computer back onto my S4 with the 32gb card is a nightmare! Photos are transferred but too out of order to try and deal with although it's more the music problem that has me bugging. I have some success after putting about 3gb or so onto the new*32gb sd card but after that, the sd card flips out and starts using special characters for file names. Below I attached a screenshot of what I'm going through with another app called V1 Golf for Android. I'm stuck and any help is much appreciated. I can't delete anything on my sd card nor can I add. I've reformatted this card about 4 times now without success. Some say that a Sandisk have been nothing but problems for them, you think a Samsung card could be the fix?
I'm also running windows 7 on my computer as some people have said that could interfere with the transfer but it seems like that's not the problem being that downloading apps from google play shows corrupted files depicted below.
jakesteed808 said:
I've been spending waaay to much time trying to get this phone to work as I had expected with previous phones (even my LG G2x) giving me less problems. I recently bought a Sandisk 32gb, class 10 micro sd card and after transferring old music, pictures and videos from my old LG G2x with a 16gb card, placing files from my computer back onto my S4 with the 32gb card is a nightmare! Photos are transferred but too out of order to try and deal with although it's more the music problem that has me bugging. I have some success after putting about 3gb or so onto the new*32gb sd card but after that, the sd card flips out and starts using special characters for file names. Below I attached a screenshot of what I'm going through with another app called V1 Golf for Android. I'm stuck and any help is much appreciated. I can't delete anything on my sd card nor can I add. I've reformatted this card about 4 times now without success. Some say that a Sandisk have been nothing but problems for them, you think a Samsung card could be the fix?
I'm also running windows 7 on my computer as some people have said that could interfere with the transfer but it seems like that's not the problem being that downloading apps from google play shows corrupted files depicted below.
Click to expand...
Click to collapse
First, did you format this 32gb sdcard using fat32, exFAT or NTFS or ?
If you did not format it with fat32 then that could have caused the problem.
First you need to remove the card from the phone and plug it into your
computer using the adaptor which came with the microsd card so it can be
tested and repaired in windows.
Once the card is plugged into the computer and it's recognized by windows make note of the drive letter.
Then open a cmd prompt in windows by going to the start menu clicking on RUN then type "CMD" and click OK to open the DOS prompt.
Then in the black DOS window type: chkdsk E: /F then press "enter" to scan and fix errors on your microsd card.
NOTE: The E: is just an example, check the actual drive letter of the sdcard which is plugged into the computer.
Please note, doing the above will not delete any files or folders unless they are deemed unusable and cannot be fixed.
The chkdsk will NOT not format your microsd card.
Good luck!
jakesteed808 said:
I've been spending waaay to much time trying to get this phone to work as I had expected with previous phones (even my LG G2x) giving me less problems. I recently bought a Sandisk 32gb, class 10 micro sd card and after transferring old music, pictures and videos from my old LG G2x with a 16gb card, placing files from my computer back onto my S4 with the 32gb card is a nightmare! Photos are transferred but too out of order to try and deal with although it's more the music problem that has me bugging. I have some success after putting about 3gb or so onto the new*32gb sd card but after that, the sd card flips out and starts using special characters for file names. Below I attached a screenshot of what I'm going through with another app called V1 Golf for Android. I'm stuck and any help is much appreciated. I can't delete anything on my sd card nor can I add. I've reformatted this card about 4 times now without success. Some say that a Sandisk have been nothing but problems for them, you think a Samsung card could be the fix?
I'm also running windows 7 on my computer as some people have said that could interfere with the transfer but it seems like that's not the problem being that downloading apps from google play shows corrupted files depicted below.
Click to expand...
Click to collapse
Unfortunately I ran into a very similar situation with a 64gb SanDisk card. After several months of using it successfully without issue, out of nowhere some 20 gigs of data were stuck. It seems that 1 file in a nandroid was corrupt. After formatting, re-partitioning, deleting etc, etc. with Windows 7 as well as MiniTool Partition Wizard I was unable to ever get the corrupt file to delete. Thus leaving the $60+ card useless and a prime candidate for the trash. I chalked it up too a "bizarre" instance. I have since purchased 2 64gb cards, one to replace and one for my new S4. Haven't had the issue since (knock on wood). Not sure what the exact culprit was, the recovery? (TWRP), a freak occurrance? or Just a defective card? If you have any luck saving your card please post how you did. Although I realize this probably isn't helpful except to know your not the only one.
My sd card seems to be stuck.
About 20 of 64 gb being used.
Now I can't delete anything. Or add anything.
It appears to delete and then it just comes back.
Does that mean my sd card is dead.
scandisk 64gb
Had the same thing just happen to me. Transferred a few kernel files yesterday and today couldn't delete, add or format anything. I was able to copy all files to computer but that's it.
same thing happen to my sandisk 64gb class 10 microsdcard as well
is it a virus?
I had the exact same issue with a San-disk 64gb micro sdcard, I contacted San-disk, they offered me a replacement card.I suggest you do the same, hopefully they will exchange it for you.
MSK1 said:
My sd card seems to be stuck.
About 20 of 64 gb being used.
Now I can't delete anything. Or add anything.
It appears to delete and then it just comes back.
Does that mean my sd card is dead.
Click to expand...
Click to collapse
You can use another SD card to try whether this sd card is dead.
If anothe SD card can delete files, it proves that this sd card is dead, vice versa.
Did your problem solve? I'm experiencing now like with your problem. And I'm looking for an answer.
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
I have a Samsung Galaxy Tab Pro 12.2, SM-T900 stock non-rooted OS 4.4.2, and a Sony 64 U1 microSD.
At times I go to send an attachment and the file manager shows the card but it shows it as empty. I pop the card out, re-insert it and back it comes. Sometimes the card doesn't have the problem for weeks and other times it happens 2 or 3 times in a day.
I thought I might reformat it after copying everything off, but I know there are apps that store setting/data there and don't know if that will mess things up.
An issue anyone else has had? Any thoughts?
should be fine, first unmount the sdcard cleanly by going to settings - general - storage - unmount sdcard, then remove it - when you copy the data off make sure your pc can see hidden files since you will need the hidden folders if you have apps moved to the sdcard.
when you format the card it should be in exfat format (not fat32), since it's a sdxc card (64gb+)
if the problem persists then the sdcard probably went bad (happens all the time, I must of went through 3 64GB Sandisk ones already) the system is designed if the card gets an error reading or writing it will unmount / remount the card - it could also be temperature related too some sdcards also have a protection mechanism where it will switch it to read only mode making it impossible to write to it or format, if you are lucky it might have a good warranty and you can get it replaced hassle free.
I did check the card before posting and it is formatted exFAT. Also using an SD card adaptor put it in my PC and did a Chkdsk on it with the /f option to fix any problems and no errors were found.
Unless someone has something else to try later today I will copy everything off, put it back in the tablet, and under storage SD I'll Format it with Android.
otyg said:
should be fine, first unmount the sdcard cleanly by going to settings - general - storage - unmount sdcard, then remove it - when you copy the data off make sure your pc can see hidden files since you will need the hidden folders if you have apps moved to the sdcard.
when you format the card it should be in exfat format (not fat32), since it's a sdxc card (64gb+)
if the problem persists then the sdcard probably went bad (happens all the time, I must of went through 3 64GB Sandisk ones already) the system is designed if the card gets an error reading or writing it will unmount / remount the card - it could also be temperature related too some sdcards also have a protection mechanism where it will switch it to read only mode making it impossible to write to it or format, if you are lucky it might have a good warranty and you can get it replaced hassle free.
Click to expand...
Click to collapse