Develop Bugs

Sd cards keep getting damaged?

I am now on my 3rd sd card. It seems my Galaxy s 3 keeps chewing them up. I get random sd card removed msgs and then it won't mount again.
Anyone had this happen? Can anyone recommend a reliable card that this won't happen to?
I've tried pny and SanDisk and both had this happen.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Are you certain its the card and not your phone? Get a card reader, and check to see if your PC/Mac can read it properly. If so, format and try again.
I've had cheap SD cards, and expensive. I have never had an issue.
Sounds more like your S3 is having issues. If the above proves the card is fine, try wiping your phone
Sent from my SGH-I747 using xda app-developers app

I was having the same issues with my SD card but found out it was the ROM is was running that was causing the issues. I flashed Hellfire and have not had any issues since then. I would agree that it is not the SD card but its the phone.

Hrmmm.... I've been running this rom though with the same sd for a month or so now no issues.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I has a SanDisk micro 32 gig ultra or whatever, and it was working great until about a week ago.
I was switching between a couple different roms (paranoid android/kangdroid, frosty, ultimatum, black jelly, etc)
Then, it just died. I couldn't get it ready by any of the 5 devices in tried.
I got a hold of amazon, and and I have a replacement in the mail.
If anyone figure this out, let us know how to not only do this again, please lol
Sent from my SGH-I747 using xda app-developers app

It's the way the SD card is formatted. I had this happen when I switched to AOKP and it kept telling me the memory card was damaged. It turns out I needed to format the card to fat32. Once I did that it worked perfectly.
Sent from my Nexus 7 using Tapatalk 2

So take it out and format it to fat32?
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Yeah. You can find programs with a Google search that will do this for you via your computer. It's a quick process.
Sent from my Nexus 7 using Tapatalk 2

I had a SanDisk 32GB card die on me as well. Couldn't be read on any PC, Mac, or phone. That truly sucked.
Sent from my phone

Jirv311 said:
I had a SanDisk 32GB card die on me as well. Couldn't be read on any PC, Mac, or phone. That truly sucked.
Sent from my phone
Click to expand...
Click to collapse
Any update on this? The same thing happened to me, running stock and unrooted. It looks like everything on my card is gone. Should I try another card or just go get a new phone?

Same problem here.... AOKP ROM and Jedi... my 8g card works but my 32g card will only accept certain files. I can't even create a folder in the external sd card.

Me too, with a 32Gb sandisk card. Card stopped working completely, and wasn't recognized by my phone or computer. I contacted sandisk via their web site support and a replacement is on its way. The approval process took a couple of days of emails back and forth, then they sent me a printable UPS label for RMA. They shipped the replacement out the day after receiving my return.
Bigred007 said:
Any update on this? The same thing happened to me, running stock and unrooted. It looks like everything on my card is gone. Should I try another card or just go get a new phone?
Click to expand...
Click to collapse

Same here, with a SanDisk Ultra 32GB card. It worked fine for a month, then just died. I've got a 16GB Amazon Basics that I'm using while waiting for the RMA on the SanDisk. The 16GB card had to be formatted xFAT on my Mac before the AT&T JB ROM (rooted via Mr. Robinson) would read it reliably, but it's been good since then.

[Q] sd card unmount unexpectedly

Hye everybody..im having a small problem with my n2..my external sdcard sometime get unmount automatically after unlocking to home screen. .anyone having this problem? This can effect battery life since the media will be rescan each time it happen. .may I know the cause of the problem and if possible a way to solve it..tq
Sent from my GT-N7100 using Tapatalk 2

coincidentally, am experiencing the same thing recently
am pulling my hair off due to it lol

me to exp the same problem is it because of phone or the card?

Experienced it before... And I flashed a different kernel, it is solved.
Accidentally sent from my Samsung Galaxy Note 2

melvinchng said:
Experienced it before... And I flashed a different kernel, it is solved.
Accidentally sent from my Samsung Galaxy Note 2
Click to expand...
Click to collapse
Which kernel? Am relief to hear others are having the same problem..I guess it may relate to firmware or kernel since few people are having the same problem..
Sent from my GT-N7100 using Tapatalk 2

Yes, it's been happening to me too when unlocking the phone (and seemingly more recently over the last week).
Using a Sandisk Ultra card and on the standard 4.1.1 ROM.

Let me guess, you are all using sandisk ultra cards? These cards appear to be a real pain in the a s s . Mine, (bought new off Amazon in October) went tits up and I believe it was the card that somehow caused corrupted files and caused my "media" process to be a complete battery hog.
About a week before the card totally failed to be recognized by my computer or my phone, I got those random messages about my sd card being unmounted and then it would just automatically scan it as if I had just inserted it when in reality I never took it out. I was able to copy everything to my computer about an hour before it was complete toast
I suggest you copy any important files on the card to your computer or wherever before it completely fails. I don't know what to do about getting a new card. I already filed a warranty claim with Sandisk but I am hesitant to use their brand again. Sandisk seems to be THE brand out there. I would like to try another brand.

livingaboard said:
Let me guess, you are all using sandisk ultra cards? These cards appear to be a real pain in the a s s . Mine, (bought new off Amazon in October) went tits up and I believe it was the card that somehow caused corrupted files and caused my "media" process to be a complete battery hog.
About a week before the card totally failed to be recognized by my computer or my phone, I got those random messages about my sd card being unmounted and then it would just automatically scan it as if I had just inserted it when in reality I never took it out. I was able to copy everything to my computer about an hour before it was complete toast
I suggest you copy any important files on the card to your computer or wherever before it completely fails. I don't know what to do about getting a new card. I already filed a warranty claim with Sandisk but I am hesitant to use their brand again. Sandisk seems to be THE brand out there. I would like to try another brand.
Click to expand...
Click to collapse
Im using a sandisk ultra 32gb card ever since i got my sgn2 a few months bck, never even formatted it to anything else n flashed a s#itload of roms n kernels too never had or have a prob, btw currently using omega 8.0 n perseus alpha 29....
Sent from my GT-N7100 using xda premium

livingaboard said:
Let me guess, you are all using sandisk ultra cards? These cards appear to be a real pain in the a s s . Mine, (bought new off Amazon in October) went tits up and I believe it was the card that somehow caused corrupted files and caused my "media" process to be a complete battery hog.
About a week before the card totally failed to be recognized by my computer or my phone, I got those random messages about my sd card being unmounted and then it would just automatically scan it as if I had just inserted it when in reality I never took it out. I was able to copy everything to my computer about an hour before it was complete toast
I suggest you copy any important files on the card to your computer or wherever before it completely fails. I don't know what to do about getting a new card. I already filed a warranty claim with Sandisk but I am hesitant to use their brand again. Sandisk seems to be THE brand out there. I would like to try another brand.
Click to expand...
Click to collapse
Yes im using a sandisk ultra 32 gig class10..however my other friends also having the same problem but he is using kingmax..now im not sure weather the problem rise because of the sd or default in the phone itself..
Sent from my GT-N7100 using Tapatalk 2

livingaboard said:
Let me guess, you are all using sandisk ultra cards? These cards appear to be a real pain in the a s s . Mine, (bought new off Amazon in October) went tits up and I believe it was the card that somehow caused corrupted files and caused my "media" process to be a complete battery hog.
About a week before the card totally failed to be recognized by my computer or my phone, I got those random messages about my sd card being unmounted and then it would just automatically scan it as if I had just inserted it when in reality I never took it out. I was able to copy everything to my computer about an hour before it was complete toast
I suggest you copy any important files on the card to your computer or wherever before it completely fails. I don't know what to do about getting a new card. I already filed a warranty claim with Sandisk but I am hesitant to use their brand again. Sandisk seems to be THE brand out there. I would like to try another brand.
Click to expand...
Click to collapse
You explained well.... same sad story!!!

im using transcend 32 gb its work fine in my note but its not work properly in note 2

My views on this issue
I have started facing this issue since the past 3-4 days and here are my views that can also serve as valuable information for everyone else:
- This error message started to appear only after I upgraded to android 4.1.2 by flashing the stock rom via odin.
- Im also using the SanDisk Ultra Class 10 32GB card
- I have not rooted my phone after upgrade and my phone is in fully stock condition, although it was rooted before.
- I dropped my phone once. But it was a very minor drop and everything was fine after the drop as it was on 4.1.1 at that time and i was on the same for further 10-15 days and never witnessed the error during these days..
These things should also be considered-
- The method of copying data from PC to phone. I use data cable and copy to the folders while the card is in the phone.
- Whether you remove the card without unmounting it.
I have tried formatting the card from windows using fat32 setting. It didnt help.
Formatted it with the phone and still saw the error once in the past 24hours..
In future, if I encounter the same problem, I might get the card replaced by visiting the sandisk service center here in India. Or, I can try flashing 4.1.1 again and revert back the result. As of now, everything seems to be fine as I have not seen the error for about a day or so.. (Fingers crossed)

sagarb said:
im using transcend 32 gb its work fine in my note but its not work properly in note 2
Click to expand...
Click to collapse
Thats what makes me feel uncomfortable. .if the card is the problem I think my pc wouldn't recognize it or reading the data in it..however it is doing fine with the pc..
Sent from my GT-N7100 using Tapatalk 2

rascal123 said:
Thats what makes me feel uncomfortable. .if the card is the problem I think my pc wouldn't recognize it or reading the data in it..however it is doing fine with the pc..
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
and i read pple's card getting fried due to this issue

rascal123 said:
Thats what makes me feel uncomfortable. .if the card is the problem I think my pc wouldn't recognize it or reading the data in it..however it is doing fine with the pc..
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
my doubt is wheather phone is having problem or the card im confuse which service center should i go first samsung or transcend .another thing is today i flashed 4.1.2 india stock rom again through odin now card wont dectecting at all but it is good and recognize with note and my pc

Paul013 said:
I have started facing this issue since the past 3-4 days and here are my views that can also serve as valuable information for everyone else:
- This error message started to appear only after I upgraded to android 4.1.2 by flashing the stock rom via odin.
- Im also using the SanDisk Ultra Class 10 32GB card
- I have not rooted my phone after upgrade and my phone is in fully stock condition, although it was rooted before.
- I dropped my phone once. But it was a very minor drop and everything was fine after the drop as it was on 4.1.1 at that time and i was on the same for further 10-15 days and never witnessed the error during these days..
These things should also be considered-
- The method of copying data from PC to phone. I use data cable and copy to the folders while the card is in the phone.
- Whether you remove the card without unmounting it.
I have tried formatting the card from windows using fat32 setting. It didnt help.
Formatted it with the phone and still saw the error once in the past 24hours..
In future, if I encounter the same problem, I might get the card replaced by visiting the sandisk service center here in India. Or, I can try flashing 4.1.1 again and revert back the result. As of now, everything seems to be fine as I have not seen the error for about a day or so.. (Fingers crossed)
Click to expand...
Click to collapse
I have not rooted my phone after upgrade and my phone is in fully stock condition, although it was rooted before.
my card unmount problem started ever snice i came to stock from root

sagarb said:
I have not rooted my phone after upgrade and my phone is in fully stock condition, although it was rooted before.
my card unmount problem started ever snice i came to stock from root
Click to expand...
Click to collapse
Have u try other card than the one u currently use?
Sent from my GT-N7100 using Tapatalk 2

My sd card got broken today...nothing can read it anymore.. any idea on how to recover files from broken sd card?
Sent from my GT-N7100 using Tapatalk 2

I can confirm that the sd card is the causing of this problem..just replace to a new one n didn't facing any problem yet
Sent from my GT-N7100 using Tapatalk 2

Rooted my phone and install CWM I get this problem, but after format the sd card to fat32, everythings go well......

Note 2 ruined the 2nd sd card

Hi, It ruined the first one, then I bought 32GB SanDisk and it ruined it, what's happening? Can it be fixed?
Sent from my GT-N7100 using Tapatalk 2

Take it out and format them to FAT32 and try again because some card came as exFat. Good Luck

I don't know if you should blame the phone or the card. I had a 32GB Sandisk and had nothing but problems with it. I changed to a smaller Kingston card a few months back and not had a problem since.

Dmwitz said:
I don't know if you should blame the phone or the card. I had a 32GB Sandisk and had nothing but problems with it. I changed to a smaller Kingston card a few months back and not had a problem since.
Click to expand...
Click to collapse
u should blame the card, its official that 32/64gb sandisk cards dont like new samsung phones. anyway send it to sandisk and you will receive "updated" version of that card which dont bug with sammy phones.

ahkiongkc said:
Take it out and format them to FAT32 and try again because some card came as exFat. Good Luck
Click to expand...
Click to collapse
thank you thank you thank you, it worked again

UPDATE (see post#30):SanDisk Ultra 32GB kiss of death? (

For the past 4-5 months, I've been seeing quite a few posts regarding issues with the SanDisk Ultra 32 GB microSDHC Class 10 UHS-1 Memory Card 30MB/s with Adapter SDSDQUA-032G-U46. I bought one back in November 2012... been running it hard for 6 months without incident.. so figured I was one of the lucky SanDisk recipients.... until today! Starting today, every time I wake the phone get the "sdcard mount" message. So loaded "SD Card Monitor" from the Market (screenshot attached) and found that during deep-sleep, it unmounts/mounts/removed/bad-removal/ejects constantly (example: phone slept from 10:04am to 10:22am)...but during wake state, no issues. So I suspect I'm about to experience the SanDisk 32GB Ultra kiss of death any day now. Backed up ExtSD to computer, but now the search for a proper extSD replacement. Any recommendations? Leaning towards Samsung 32GB or 64GB...
UPDATE: SEE POST # 30

Yea I just bought mine about a month and a half go. One month in of using it, my card corrupted and I ended up having to reset it. Lost everything! Lucky I put anything of importance on my cloud before it finally died on me. :banghead:
Sent from my SGH-I317 Jedi ROM

I would suggest going with the 64GB. I never had any problems.

daywalker04 said:
I would suggest going with the 64GB. I never had any problems.
Click to expand...
Click to collapse
64gb are the issue right now. If you want a reliable card than buy Samsungs sd cards
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

Just got my replacement card today 64gb Sandisk. Bought it two months ago, card shows as raw format and can't access it at all.
Sent from my SGH-I317M using xda premium

Are you having issues with dropped calls too? I was thinking I was alone, and maybe it was a bad module? I got my phone 2nd hand, and that's my next step to order a new sdcard/sim card module and try to replace it. Data works fine and never cuts out, phone calls last maybe 30 seconds, and it's killed 2sdcards already. ..

johng75 said:
Are you having issues with dropped calls too? I was thinking I was alone, and maybe it was a bad module? I got my phone 2nd hand, and that's my next step to order a new sdcard/sim card module and try to replace it. Data works fine and never cuts out, phone calls last maybe 30 seconds, and it's killed 2sdcards already. ..
Click to expand...
Click to collapse
No problem with dropped calls... can still read/write to extSD fine, but now getting all the mount/unmount warning messages (and log confirms its poised for failure).

DoctorQMM said:
No problem with dropped calls... can still read/write to extSD fine, but now getting all the mount/unmount warning messages (and log confirms its poised for failure).
Click to expand...
Click to collapse
What did you use to format your card? Just curious cuz mine was formatted to fat32 before never had mount / unmount problem it just quit on me.
Sent from my SGH-I317M using xda premium

64gbyte Good ... Fire BAD ,,,
Andrew149 said:
64gb are the issue right now. If you want a reliable card than buy Samsungs sd cards
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
I've used this card since November 2012. Never an issue. And have used it extensively. I currently have 5 fully ripped DVDs on there now and exchange with new ones every so often. Can't beat it. Love the way Samsung/Android has allowed add on cards to be used seamlessly with apps.
SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card with Adapter (SDSDQU-064G-AFFP-A)
J

jon3sh said:
What did you use to format your card? Just curious cuz mine was formatted to fat32 before never had mount / unmount problem it just quit on me.
Sent from my SGH-I317M using xda premium
Click to expand...
Click to collapse
FAT32... not a single problem for 5 months until today... and I r/w the crap out of my extsd cards daily... we'll see what happens.. still works, just getting these warning messages.

Really like that Samsung SD card idea.
Back to Amazon. ...g

I purchased one of these from Amazon last week. Works like a charm, albeit only when formatted as FAT32.
It is roughly twice as fast doing read/writes than my previous Samsung 32GB card.

DoctorQMM said:
FAT32... not a single problem for 5 months until today... and I r/w the crap out of my extsd cards daily... we'll see what happens.. still works, just getting these warning messages.
Click to expand...
Click to collapse
Could be the format of fat32 causing it used my other card with exfat format and never give me problem or maybe just bad batch of cards we got.
Sent from my SGH-I317M

My Sandisk stoped working also, so I bought the samsung 32gb and it's starting to do the same thing again. I just think there is something wrong with samsung phones in general.

I haven't had any issues with my sd card or phone. But a buddy of mine has burned up 3 pny cards and one sandisk. Although it's an s3. Sounds like a phone issue. I told him to call a warranty claim.
Sent from my SGH-I317 using xda app-developers app

Cant recall ever losing a card to a defect...but then again, I dont use sandisk either....g

Same hear had the sandisk ultra 64gb for almost a year and no issues
Sent from my SAMSUNG-SGH-I317 using xda premium

jimstars said:
I've used this card since November 2012. Never an issue. And have used it extensively. I currently have 5 fully ripped DVDs on there now and exchange with new ones every so often. Can't beat it. Love the way Samsung/Android has allowed add on cards to be used seamlessly with apps.
SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card with Adapter (SDSDQU-064G-AFFP-A)
J
Click to expand...
Click to collapse
You could of had a good batch but theres been 100s of reports sandisk fail over and over again
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

I just had mines ALMOST fail on me. Had unexepected removal notices for about a month. Started an RMA with Sandisk right before it started to go "Blank SD card".
Least they have 10 year warranties.

10 years ??
Wow....not bad....g

[Q] Bad 32gb micro? ...or did I F up?

Im not a stranger to rooting (thanks due to all the awesome devs here!) But sadly a ran low on storage. Bought a 32gb Sandisk class 10 ($24...Why pass on that?!) I copied current sd to computer, then transferred to new sd card. Well, phone was incredibly laggy. Ended up freezing. Pulled battery, rebooted.... froze on samsung screen (waited almost 10 mins) Pulled battery again. Attempted to reflash current rom, but upon reboot it sent me back to recovery with message of no OS. Not one of my roms would succeed. Back to old sd card.
Now i must ask, did i miss something here? Or is it a defective card? Im a sucker for punishment. I formatted card, only putting rom files on to use. Still failed on me.
Returned to original sd card, reflashed rom. Back to normal!!

There is a known issue with SanDisk SD Cards, and the Samsung Galaxy S3. You can find more info HERE. I believe the the issue has since been resolved. You can try to format the SD Card with SD Formatter. It may save the SD Card. But either way you can follow the link I gave you. There is another link there to the SanDisk site. They should replace your card. Or you can take it to your local retailer with a copy of the link page. They should take care of the issue.

What is the best sd card to buy?
Sent from my SPH-L710 using xda app-developers app

That's seems to be a matter of opinion. I still have a SanDisk Ultra SDHC 32GB Class 10 micro SD Card. I had to exchange it once. But after I received the new SD Card, I've had ZERO issues with it.

prboy1969 said:
That's seems to be a matter of opinion. I still have a SanDisk Ultra SDHC 32GB Class 10 micro SD Card. I had to exchange it once. But after I received the new SD Card, I've had ZERO issues with it.
Click to expand...
Click to collapse
I have my 32GB sitting on a shelf.
I have no proof of purchase, but I did purchase it.
Am I boned?
Sent from my SPH-I710 using xda premium

xblackvalorx said:
I have my 32GB sitting on a shelf.
I have no proof of purchase, but I did purchase it.
Am I boned?
Sent from my SPH-I710 using xda premium
Click to expand...
Click to collapse
I would try contacting SanDisk directly. They may replace it.

xblackvalorx said:
I have my 32GB sitting on a shelf.
I have no proof of purchase, but I did purchase it.
Am I boned?
Sent from my SPH-I710 using xda premium
Click to expand...
Click to collapse
I got mine as a gift and mine went out recently...emailed sandisk a few times back and forth (they ask where it is from, never gave them a receipt or anything) and they replaced it for free...just got it today!
Sent from my SPH-L710 using Tapatalk 4 Beta

prboy1969 said:
That's seems to be a matter of opinion. I still have a SanDisk Ultra SDHC 32GB Class 10 micro SD Card. I had to exchange it once. But after I received the new SD Card, I've had ZERO issues with it.
Click to expand...
Click to collapse
Same here. Since replacement haven't had a single issue. When I contacted Sandisk never required reciept.