yashsingh1/xdaforums huggingface dataset:
[Galaxy S III Q&A, Help & Troubleshooting] shadyr25:
I've also had that problem, my computer, tab and phone stopped detecting my sd card. I was so frustrated as I had important things in it, I thought the card was gone for good however, out of frustration I kept on inserting and ejecting the card continuously when suddenly it decided to work :) not a second was wasted for backing up the files :)

Hope if that's the case with you, try what I did.
[Galaxy S III Q&A, Help & Troubleshooting] kenyw:
I just put the micro-SD in a USB reader and am pulling the data off on to my PC as I type. Windows Explorer appears to be reading the card just fine. I think I'll just reformat the card with the PC, again with the phone and then replace all the data if it works. Otherwise... :(
[Galaxy S III Q&A, Help & Troubleshooting] shadyr25:
My phone is weird, no sign of sd card unexpectedly removed today... I hope it stays that way.

By the way, try not to format using windows, search for and download sdformatter, it is designed for high capacity sd cards like ours, it helps to attain full performance of the sd card. And don't format it again using the phone, I've tried exactly what you're doing, I had no luck, still had the problem.
[Galaxy S III Q&A, Help & Troubleshooting] arghness:
Sandisk acknowledges the problem

Apparently it's fixed for the latest cards.

http://www.theregister.co.uk/2013/03/18/galaxy_s3_sandisk_msd/
[Galaxy S III Q&A, Help & Troubleshooting] Fre4k:
Got 2 dead kingston sd card 16gb class10 in 10 months... still at night
[Galaxy S III Q&A, Help & Troubleshooting] goodthaimer:
I got a 64gb Kingston class 10 that I was having problems with at first so I stuck it in my laptop and reformatted it and not a problem since..

Sprint gs3 running goodness 9.0.4
[Galaxy S III Q&A, Help & Troubleshooting] talhafarooq87:
Bought one month ago 32gb class 4 Kingston card and I just got messag dat card was removed unexpectidly:( though I didnt removed the card at all..
[Galaxy S III Q&A, Help & Troubleshooting] yaleandroid:
My SanDisk 32GB is also fried. The S3 constantly asks to format the card as it is "blank or has unsupported files".
[Galaxy S III Q&A, Help & Troubleshooting] shadyr25:
I got fed up with mine and just claimed another one under warranty with sandisk... I didn't even have to return my sd card for proof or anything which means they are aware of the problem..

It's on its way... hoping the problem has been fixed with the new sd card.

My unbranded 32gb is doing perfectly fine although it's 2 years old.... fishy...
[Galaxy S III Q&A, Help & Troubleshooting] yaleandroid:
Lucky you. I bought mine during a trip to US, it'd be difficult to get a replacement now.

And another thing I just noticed. The card get insanely hot when I insert it in S3. Like it almost burns my skin hot!
[Galaxy S III Q&A, Help & Troubleshooting] XDA mark:
So after a few days of turning on my screen and seeing the "sdcard unexpectedly removed" and then preparing it again... I suddenly got a new kind of message yesterday night, with "blank SDcard". Yeah, awesome.

I have been searching and reading everything I found about this topic... also outside of XDA. I have a 32GB "Team" card, class 4. I have been using it since August 2012.

I just want to get the data of my card to my laptop... don't really care so much about the card. I have the included SDcard adapter and plugged the whole thing in my laptop: nothing happens. I have tried it also in another laptop, again nothing. Tried to plug my microsd card in my S3 a few more times, then tried it in my S2. Everything seems to ignore it.. except my S2 (with an AOKP 4.0.4 ROM), it keeps saying "preparing sdcard" but nothing happens.

I have searched for ways to get files of your "broken microsd card" but nothing really clear and helpfull found.

Anybody? :crying:

Kind regards
[Galaxy S III Q&A, Help & Troubleshooting] allotrios:
Unfortunately the news are not good mate. The same thing happened to me by with the SanDisk 32gb ultra card. I have tried everything. Nothing worked. I have even sent it to the recovery company SanDisk refers to, but they said that at present they can do nothing and returned the card to me. They did ask me to come back to them in 6 months time just in case they get the hardware needed to manage to recover the data. So I still have some small hope of getting the data back but I am not holding my breath.

I hope you have a better luck.
[Galaxy S III Q&A, Help & Troubleshooting] nkb88:
My 32GB SanDisk got also destroyed. I got it replaced by a 32GB Samsung and im not having any problems so far. Let's keep the fingers crossed :good:
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
The issues with SanDisk cards are specific to them, they told the register site that they have identified the problem and instigated a manufacturing fix, although since then there has been no official response from them and we have no real idea when this fix was implemented.
[Galaxy S III Q&A, Help & Troubleshooting] m3741:
Where did you get your new slot?

If you don't mind me asking, where did you get your new slot?
[Galaxy S III Q&A, Help & Troubleshooting] sokis:
Same problem here

Hi guys im from greece i have the s3 i have the exact same problem i have transcend 32 gb genuine no question about it for overamonth my sdcard keeps mountingand unmounting everytimei woke up my phone and now i cant see my photos i believe i was only one with the problem but after reading 35 pages i guess i joined the list

Anyway thanks for your threads without these we wouldnt find anything

Iguess its a matter of days until my card fries up

i tried to communicate with samsung in greece but they have never heard about it (yes right)

i feel disapointed for a phone of 500 euros to have such a problem and they dont admit it too shame i wont trust samsung again

another point is that with all this mounting unmounting causes the video player of s3 to run in the background and drains my battery i dont know you guys if you noticed that but it really drains and of course samsung doesnt know anything

At least they could have said use only samsung cards (im only saying that because in the threads noone with the problem had a samsund card)

and its not a matter of genuine or static electricity im 36 and im using computers since 12 and its not my first phone nor my first memory card

THIS PHONE HAS A PROBLEM and noone dares to admit it we were just unlucky

SHAME FOR THE SAMSUNG

Anyway thank you again for your threads
[Galaxy S III Q&A, Help & Troubleshooting] FileFixer:
I think that is not problem with Samsung. This is problem with SanDisk in my case. Lower range speed cards work fine.
[Galaxy S III Q&A, Help & Troubleshooting] temiatwork:
In the span of 18 month my S3 fried 2 sd cards (samsung 16gb - 10mo and transcend 32 gb-3mo). I am now running my phone with the built-in 32gb.

This is obviously a hardware problem.
[Galaxy S III Q&A, Help & Troubleshooting] Ubimo:
I just got this card four days ago. Today I restored a ROM in CWM. After a reboot my card was corrupt.

SanDisk Ultra microSDXC Card 64GB Class 10
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
What then is the hardware fix that sandisk have implemented, to deal with the Issue on their cards?
[Galaxy S III Q&A, Help & Troubleshooting] temiatwork:
Well, Sandisk have confirmed their problem but my burned SD cards were Samsung and Transcend. Both were totally dead and can^t be read by any OS.
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
My theory is that possibly the higher capacity higher speed cards may be pushing the boundaries of the sd card spec, and maybe samsung devices work them harder causing higher failure rates? Most failures do appear to be with class 10 cards of 16gb and up. But until someone officially comments on the issue it is purely guesswork.
[Galaxy S III Q&A, Help & Troubleshooting] rookiegenius:
It's just because SanDisk 16gb or 32gb is cheap and popular. I got mine a 32gb for like 15 bucks from amazon
[Galaxy S III Q&A, Help & Troubleshooting] temiatwork:
My first sd-card is a samsung 16GB C10. after a few months of using it the "preparing sd card, mounting and un-mounting" appeared. I will try to get a cheap 8gb just to test and see if it last longer.

I hope this problem was fixed with the S4. I'm due for an upgrade by the end of the year.
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
Sorry to bang on and on, but I don't think this is a Samsung problem, specifically. SanDisk claim to have implemented a manufacturing solution to fix card failures in Samsung devices that suggests to me that someone ( samsung or card manufacturers ) are operating outside specification for SDHC devices. I don't see SanDisk would implement a fix if the issue lies with Samsung. So I don't expect the s4 to behave any differently than the s3 / note 2 (which is also labelled a card destroyer)
[Galaxy S III Q&A, Help & Troubleshooting] Mr Faceless:
Here's the deal

If you check your problematic microSD card, there is a good chance you wont find a serial number. This is because it is a non-geniune card. Contact SanDisk and they seem to be willing to replace it with an original for free. I used to be pissed off with my S3 all the time because of this problem. Now SanDisk has given me a new genuine card and the problem is gone!
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
Nope mine was definitely genuine, confirmed via sandisk cs.
[Galaxy S III Q&A, Help & Troubleshooting] BHARGAV33:
using an nokia 8gb sd card since 3 years..

i got into an samsung champ, GS2, and just so good on my GS3..
[Galaxy S III Q&A, Help & Troubleshooting] NoOneCanHelpMe:
get a Samsung 32 GB class 10 or the new one high speed class 1 or sth. been using it on my s3 for a year now( since it came out)

I got this one:

http://www.amazon.co.uk/gp/aw/d/B005FY61EK/ref=mp_s_a_1?qid=1366705811&sr=8-1&pi=SL75

this one should be faster:

http://www.amazon.co.uk/gp/aw/d/B00B5RPJ44/ref=mp_s_a_1?qid=1366705871&sr=8-15&pi=SL75

and 64GB also from UHS class one

http://www.amazon.co.uk/gp/aw/d/B009HPFUGI/ref=mp_s_a_1?qid=1366706129&sr=8-1&pi=SL75
[Galaxy S III Q&A, Help & Troubleshooting] thesellerfrank:
The sd card may not be the original sdcard... I have sg3 and using samsung 32 sd card for almost 8mos now so far no problem.. I have other sd card 8g and i know its an imitation coz I bought it from store that sells unauthentic products and it was destroyed after 2mos used on my sg3... better buy class 10 authentic sd card with warranty so yiu will not waste money and time anymore....:thumbup:
[Galaxy S III Q&A, Help & Troubleshooting] rookiegenius:
If you ever read this thread, most people complain about SanDisk. And come on, I got mine a 32gb SanDisk for like 15 bucks on amazon (yes, sold by amazon) so no need to get a cheap card anywhere. It is going well for 4 months now (my previous one died roughly after 4 months)

Personally I believe using samsung card will fix this issue.
[Galaxy S III Q&A, Help & Troubleshooting] jmvelazquezr:
I am beginning to think this could be Android related, this is what I have observed so far, on my own S3 as well as read all over the internet...

1. Happens to more than one SD brand (not exclusive to SanDisk).

2. Is not exclusive to Galaxy S3, have read about other Samsungs or Motorolas having a similar problem.

3. For me, it started after I upgraded to 4.1.2. No problems before that.

4. I notice bad removal messages only when the phone is in deep sleep, if I use an app to keep it awake I don't see a single problem.

It is really annoying and doesn't seem like there will be any fix, Samsung and Google are happy SanDisk is replacing customer's cards so as far as they are concerned the problem is solved... Conclusion, we are screwd!
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
If you'd read a bit deeper you'd have seen sandisk claim to have implemented a manufacturing fix for their cards, how and more importantly why would they unless the problem lay with them?
[Galaxy S III Q&A, Help & Troubleshooting] jmvelazquezr:
Yes I have read that many times too, but if they have fixed it... why does it keep happening with other phones/sd card brands?

If it was only SanDisk's cards then people with other brands shouldn't have this problem, yet they do.
[Galaxy S III Q&A, Help & Troubleshooting] Androideka5:
I've had the same 16 Gb SanDisk for close to 3 years now and used with 3 different phones with no problems
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
Now that my friend is the $1m question, and tbh as sandisk won't spill the beans on what they did we can't identify their problem. But I haven't seen any reports of failures amongst the replacement cards.
[Galaxy S III Q&A, Help & Troubleshooting] zelendel:
And people wonder why OEMs are doing away with Sd card slots.

Cant say I have had this issue though. Used the same 32gb class 10 card on the captivate, Inspire, GS2, 747 and the 9300 and never had an issue.
[Galaxy S III Q&A, Help & Troubleshooting] rootyourphones:
I have an issue formatting my sandisk tried for 4 hours now .tried on my phone but it keeps comeing as blank sd, also every sd tool there is
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
I'd give up trying to format it and just RMA it, it's dead.
[Galaxy S III Q&A, Help & Troubleshooting] rootyourphones:
I already did and its getting ship to sandisk in the morning ots a shame I just bought it too.
[Galaxy S III Q&A, Help & Troubleshooting] DMCrimson78:
Kingston 16gb class 10 died on me today. Friend's S2 didn't see it either. Luckily, when the trouble began, I managed to copy data to internal mwmory before it ceased to work... Still need to check at home if computer sees it.

Sent from my SGS III with Tapatalk 2
[Galaxy S III Q&A, Help & Troubleshooting] arparaspolo:
Patriot 32gb Micro SD HC Class 10

I have had this card for almost a year. It was in my Droid 3 and then into my RAZR, then RAZR MAXX then into my GS3. Never had an issue. Until today. I have been using a 3080 aftermarket slim extended battery. Works great(just no NFC) I am going camping this weekend so I thought I'd check the charge on my OEM Samsung battery that came with the phone. I powered down the phone. Removed the battery. Put in the new one and turned it back on. The batter was at 97%. Pretty good for not using in in like 6 months. I plugged it into my pc to charge it up. 20 minutes later I am now at 97% I was like "wtf?" I saw the sd card icon saying it was corrupt. Damn. I don't know if there is anything related but that is how my card was corrupted. In my opinion anyway. When switching batteries, I shall be removing my sd card first.
[Galaxy S III Q&A, Help & Troubleshooting] dauss:
PNY 16GB Class 10

My PNY card died yesterday. 10 months 8 days. I noticed that a few pictures that I took were corrupted just a week ago. I restarted my phone last week and the Damaged SD Card came up. I popped it out and ran chkdsk from my computer. There was an error and it fixed it. Put it back in my phone and it worked.

Last night I drained my battery until it was dead watching YouTube videos. When I turned it back on, same error. This time, again I ran chkdsk, but no errors were found. I can still read the data from my computer, but the phone no longer recognizes it. I noticed some more pictures are not corrupted.

This isn't the first time this has happened. My S1 fried my SD card, but it took almost 2 years before that happened, but when I pulled it out, the card was hot.
[Galaxy S III Q&A, Help & Troubleshooting] sokydream:
I have owned several android phones and never had a issue. But after reading reviews on amazon and this thread, I am cautious. I bought a 32gig samsung class 10. Wish me luck.
[Galaxy S III Q&A, Help & Troubleshooting] wajiman:
i found a thread in another forum where a person had a chat with a samsung representative. He told that s3 only supports class 2 to class 8. class 10 is not yet supported by s3.

i have also now started to face random unmounts only sometimes in my s3 for Lexar 32gigs class 10 sd card. made backup. now reverting back to 16 gigs class 4 card :/
[Galaxy S III Q&A, Help & Troubleshooting] Skander1998:
Using my 32GB Class 10 Samsung card from 8/10 months now, perfect.

Used it for 4 months on my Galaxy SL and 4-5 months on my Galaxy S3 (International).
[Galaxy S III Q&A, Help & Troubleshooting] graffixnyc:
Haven't had any issues with my 64gb card. I use to have issues with my GS2 and a 32gb card where the card would constantly get "damaged" and I would have to reformat it. I learned it was actually the SD card speed mod that was causing it in my case. Once I stopped using the mod, my cards never were "damaged" again
[Galaxy S III Q&A, Help & Troubleshooting] Tubgirl:
Before I used to remove my card often and transfer files using a card reader instead and that killed my card. Now I let the card rest in the phone and use a cable instead (it's slower but doesn't kill my card)
[Galaxy S III Q&A, Help & Troubleshooting] tntgdh:
Well the first card i bought fom amazon, a sandisk 64 gb sdxc. The second was a 32 gb sandisk class 4.

Now that i can think better i think i just got bad luck with them.

This second car was 19 us and the 64 gb was 80 but i got the refund for it.

So i lost only 20 u$...not that much
[Galaxy S III Q&A, Help & Troubleshooting] tntgdh:
The first wasn't all dead. I could see on partitioning programs but couldn t format it. I tried to fix it for 4 days and no go.

On the second the gs3 kept showing warnings of removed sd card. When i unmounted it never came back.

Well i think i buy a new 64 gb from amazon itself. Its 50 bucks there now. Unfortunaly i have to wait until november to buy the new one.
[Galaxy S III Q&A, Help & Troubleshooting] demlasjr:
Samsung 32 gb class 10 original sd card. Over 3 months of use with not a single problem. Sandisk is pretty bad, I had problems even with the pendrives. Get a Sony or a Samsung. You better spend the money on a expensive one, you will see that you actually "save" money instead lose money (looks like you know what I mean :D). Also, class 3-4 is pretty slow for HD recording and taking photos on burst.

BTW, do you know the cards have warranty right (they say lifetime warranty, but I don't trust them :D) ? Also, the S3 have warranty too ;)
[Galaxy S III Q&A, Help & Troubleshooting] loomis:
probably it could also be improper mount/unmount card from the phone or did not proper disconnect from pc while system is still reading the card and cause the partition table corrupted, use hex editor software to zerolise the sd card and reformat again instead...

I've been using 32GB sandisk class 10 sd card since s2 till s3 and i do not face any issue at all... :)
[Galaxy S III Q&A, Help & Troubleshooting] Sad56:
Envoyé depuis mon GT-I9300 avec Tapatalk
[Galaxy S III Q&A, Help & Troubleshooting] demlasjr:
Agree with you :D
[Galaxy S III Q&A, Help & Troubleshooting] Cdjones187:
I've been doing this on my 32gb class 10 samsung since I had my S2, the card still works flawlessly..
[Galaxy S III Q&A, Help & Troubleshooting] tntgdh:
well i hope it is not the galaxy fault. i will make my last attenpt of buying a card. if he kills the third i will leave it without.

i am not using it anyway for playing anymore.....just my nexus.
[Galaxy S III Q&A, Help & Troubleshooting] mariosraptor:
I have a 64gb sandisk that it should be dead now by tge whole flashing and things.

So buy original or do not buy at all.
[Galaxy S III Q&A, Help & Troubleshooting] msedek:
32gb SanDisk class 10 Wich I swap between my s3 and note and works perfectly.. Paid 35 bucks for it

It has 5 years warranty

Enviado desde mi GT-N7000 usando Tapatalk 2
[Galaxy S III Q&A, Help & Troubleshooting] Sleepycat3:
Lexar 32GB class 10 died on me after 5 months of usage. Switched to a Sandisk 32GB Class 4 and never had issues after. Now I'm on the Sandisk 64GB ultra XC1 (the first release slower model) and no problems as well. I did read that the newer 64GB ultra UHS-1 had some issues with the phone.
[Galaxy S III Q&A, Help & Troubleshooting] SlimJ87D:
64GB Class 6 SanDisk here.

Been having a strange problem where my phone will "check sdcard for errors" you randomly like the card had just been freshly inserted. Anyone else have this problem?
[Galaxy S III Q&A, Help & Troubleshooting] 007shaolin:
I have the same problem as him. got 64gb and 32gb, those where fine on my old phone. But in sg3 it actually destroyed it. This happend after I was rooted. Dont remember wich firmware it was.
[Galaxy S III Q&A, Help & Troubleshooting] dr.m0x:
I have two Apacer class 10 32 gb cards. One I use in the gs3 the other is in my note 10.1.

Both close to a year old, were in my Sensation and Asus Transformer previously. Never had any issues with either.

Purchased genuine cards from a reputable store so maybe that's what makes the difference.
[Galaxy S III Q&A, Help & Troubleshooting] tntgdh:
Mine did this before stopping to work.
[Galaxy S III Q&A, Help & Troubleshooting] Brammers:
My S3 ate a SanDisk 32GB UHS-1 card in a month. Legit card (unless is was a *very* good fake) from Amazon.

Got a Verbatim Class10 32GB card in there now (which actually benches quicker then the SanDisk did on my windows machine), so far 6 weeks and it's OK still.

Oh and the SanDisk card was utterly dead - nothing would touch it - S3, Windows nor my Sony camera (via adapter).

J
[Galaxy S III Q&A, Help & Troubleshooting] hunhool:
I've just joined to the club of the dead sd cards :crying:

Bought it from amazon.co.uk(32 gb class10 card)it worked fine 'till last night.just listened music and the phone rebboted itself and said"ext sd card empty"...tried to reformat,but the phone and pc not recognising at all...

Sooo bad.and of course I can't send it back,because it's older than 1 month.
[Galaxy S III Q&A, Help & Troubleshooting] c1bear:
My SG has killed 2 32 GB cards one SanDisk and the other SD card was Samsung 32 GB Class 10, SanDisk was quick and easy to get a replacement card from :good: running it now, Samsung chat support said i had to call their voice support Grrr
[Galaxy S III Q&A, Help & Troubleshooting] ortori:
i have the exact same problem, i had 32gb sd card in my sgs3 and 2 days ago its stopped working.

i had it for a year and now its no longer works. i bought it from ebay for 21$ but i dont think this is the reason that it died, it must be the phone and it strange that it happend one day after i updated my phone to XXEMC2.
[Galaxy S III Q&A, Help & Troubleshooting] Reidicus:
Lexar 32GB C10 DIED!

Here is my story. I bought an s3 back at the end of january. i bought an Lexar high speed 32gb micro sd HC 10. It has been working fine but it would unmount itself randomly. Then I would have to put it into a card reader, backup everything and reformat, copy everything over and reinsert into my phone. I had to do this three times. So about every month I would have to do this. Well two days ago, the card is now unreadable in any device or card reader. I have been reading that its scandisks fault but its not. Its these damn phones and if I have to keep buying a new sd card every couple months, shouldnt I be reimbursed for a faulty piece of hardware? idont know what to say to this but at least thank god i backed everything up on my desktop computer. This is very frustrating. just bought a 32 gb scandisk. Lets see what happens.
[Galaxy S III Q&A, Help & Troubleshooting] rookiegenius:
It's SanDisk... And I believe SanDisk card has 5 year warranty
[Galaxy S III Q&A, Help & Troubleshooting] Reidicus:
Lexar = Scandisk?

EXPLAIN!

There has never been a scandisk in this phone before. Why did the Lexar fail? And why are there numerous posts about other sd cards (cheap knockoffs and real brand) also failing.
[Galaxy S III Q&A, Help & Troubleshooting] ghostofcain:
My personal feeling, is that maybe the Samsung devices are pushing the cards to the boundaries of the sd card spec and maybe that is causing issues with some cards. SanDisk claim to have implemented a hardware fix which suggests the problem isn't wholly of Samsung's making.
[Galaxy S III Q&A, Help & Troubleshooting] rootyourphones:
I get mine 64gb sd card back from sandisk Tommorrow hopefully its fixed.