yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 General] thuglifesk:
My S3 killed 2 x 32gbs micro sds in matter of a 6 months. Both of them died after backing up from TWRP and rebooting and the card was dead for some reason. Tried on PC but didnt read. I was scared to backup to microsd on the S4 but I just did it this morning and its still working but lets see how long that lasts.
[AT&T Samsung Galaxy S 4 General] SpazoQC:
same problem here...

I think i'm getting the error 'Damaged SD Card, Try Reformatting' since I formatted it in ExFat.

I only receive the msg after a reboot. like others, I remount the card and the msg goes away

edit: i have a 32gb Sandisk Class 10
[AT&T Samsung Galaxy S 4 General] rurigokou:
I had this problem with my s2 replaced 3 cards but after extensive research it appears to me (opinion) that the cause of the problem is the sandisk cards are not handling the low-power/idel sleep mode properly and sets the wrong bit in the card and never wakes fully up corrupting data this may be an issue with other cards as well or it is the phone not sending a proper wake up call and the card is not smart enough to deal with it, I switched to transcend 32 uhs-1 in my s2 and it is now in my s4 and have not had an issue since.

Take this for what it is my opinion.

Only a few find the way; some don't recognize it when they do; some don't ever want to.
[AT&T Samsung Galaxy S 4 General] ronj1986:
I had this problem once on my GS3. I figured I took the card out during shut down & that caused it. I was in a rush to remove it because I was selling it at that time. I never found out if it was the GS3 to damage the card or the Motorola Atrix HD that I put the card into immediately after taking it out of the GS3. Either way this is the reason I backup my SD card on my computer once a month.

And thats your tip of the day:D
[AT&T Samsung Galaxy S 4 General] xdas4:
So nobody find out what problem? And How to fix it? I saw a lot of people have the same problem :rolleyes:
[AT&T Samsung Galaxy S 4 General] imitenotbecrazy:
Fwiw I've owned about 15 phones since getting my sandisk 64gb and have had zero issues. 6 of those phones have been Samsungs going back to the galaxy s1. No issues reading or getting corrupted
[AT&T Samsung Galaxy S 4 General] acruxksa:
Had my SanDisk Class 10 64GB SDXC card for 8 months in my S3 with no issues. Moved it to my S4 10 days ago and still no issues.
[AT&T Samsung Galaxy S 4 General] Skyrocket2:
What's the format of your card, extFAT or FAT32?
[AT&T Samsung Galaxy S 4 General] acruxksa:
Started out with exFAT, but reformatted to FAT32 about 7 months ago when I was using CM10 on my S3
[AT&T Samsung Galaxy S 4 General] thatsupnow:
These are just horror stories of isolated occurrences, all sd cards are MASS produced doesn't matter what brand you get 9 out of 10 will be good and it just happens that you luck out and get a bum card. I highly doubt its the device that's killing your cards. I've has sgs1-4 plus a few other sony phones and have never seen any of those devices kill an sd card
[AT&T Samsung Galaxy S 4 General] Slade8525:
SOME SanDisk MicroSD cards were garbage tho; i had two die, unresponsive even on a PC. Both were 64GB; one ExFAT one FAT32. New batches ive had no problems with. The problem MicroSD's had issues or errors within 4-5 mount/dismounts in a mobile or format/corruption problems in Win7 x64 within 4-5 inserts into a MicroSD reader, no matter the format. All original real SanDisk cards too. New ones, shipped since early april (from amazon) i have no problems with.
[AT&T Samsung Galaxy S 4 General] thdaddy34:
I also had the same problem after receiving the over the air update and I got scared because I had just spent hours putting all my pictures and music and the files on the micro SD card and did not feel like formatting it so I simply restarted my phone and the problem was gone and I have not gotten that notification since.

AT&T Samsung Galaxy S4 32 GB Model
[AT&T Samsung Galaxy S 4 General] mickeywdw1254:
I had the same problem. I found a forum that described a way to fix the damaged sd card and retain the files already on it. (Mentioned in this forum as well) It basically tells you to put the card into your computer, open command prompt, run chkdsk f/ from the drive that the sd card is in and after a few minutes all it is fixed.
[AT&T Samsung Galaxy S 4 General] AutoUnion:
I really need to try out a non-sandisk microSD card. Every so often, it keeps saying it's removed and such. Quite annoying. My S3 killed about 4 old MicroSD card I had laying around. My S4 better not eat this 64gb Sandisk one now!
[AT&T Samsung Galaxy S 4 General] King Cole:
Throwing in my two cents, I've had a lot of trouble with SanDisk products, with at least 2 SD cards that I can remember going bad on me.
[AT&T Samsung Galaxy S 4 General] neysito:
A brand new Adata 64 Gb I had bought was doing exactly the same, I did not take any chances and brought it back to exchange it for a Kingston to the store I got it from. No problems after that. If you still have the chance return it before is too late.

I

GS4-I337M
[AT&T Samsung Galaxy S 4 General] jeffrey268:
Same problem.

A few weeks ago i had the same problem with my Philips MicroSDHC 32GB Class 10 card, i had another one so i replaced it, today the same thing happend.

So that's twice, maby it is time Samsung starts to investigate this problem.
[AT&T Samsung Galaxy S 4 General] alphadog00:
I find it unlikely that the phone could damage the card - possibly if the power applied was incorrect, but unlikely. If the phone was doing something bad, a lot more people would be affected.

More likely is the idea that the cards are bad. Solid State storage can be unreliable - especially if people are buying junk cards off eBay. There are tons of knockoffs out there that look like the real thing, and they fail at an incredibly high rate.

I have not had a single card or usb stick fail, but I always buy brand names for reputable sources. I have seen no-name brand usb sticks fail all the time. Solid State Storage is error prone and it takes engineering and expertise to make it reliable.

Sandisk warranties their cards from 5 to 30 years depending on model. Yes there are some defective ones, but I bet most problems are due to people with counterfeit products.
[AT&T Samsung Galaxy S 4 General] Faluzure:
Honestly, I don't think anything goes bad with the cards. I've had that error 3 times (only on a reboot of the phone). All I've done is unmount/remount the card and everything is fine.
[AT&T Samsung Galaxy S 4 General] tyshemi:
Its a issue waking the device from deep sleep sandisk doesn't like the low power so it freaks out
[AT&T Samsung Galaxy S 4 General] jeffrey268:
Does not work.

It did not work for me, even my computer can't read it, put it in and nothing happens.
[AT&T Samsung Galaxy S 4 General] tyshemi:
After a while of errors like that SD cards can go to crap I've been there with sandisk cards before I switched to a Samsung card and have been pleased and never had that issue again! Its just a sandisk thing I've had maybe five replacements from them and its had same issue
[AT&T Samsung Galaxy S 4 General] lazard:
been using the 64gb sandisk in exFAT, have not experienced any issues.
[AT&T Samsung Galaxy S 4 General] kipliq:
The title is miss leading... I have a 32gb sandisk class 4 and it working fine since it left my s2. No formatting was needed to function.
[AT&T Samsung Galaxy S 4 General] tyshemi:
Correct I was fine with all class 4s the sandisk 32 and up class tens are when problems aroused
[AT&T Samsung Galaxy S 4 General] Slade8525:
if you physically remove and reboot it usually goes away. i believe its to do with file system, since i used exfat on my 64GB cards i had one 'damaged card' warning and i realized the contacts were really dirty.
[AT&T Samsung Galaxy S 4 General] toxicpaulution:
If you are running a custom rom most don't support exFAT so you need to be on fat32
[AT&T Samsung Galaxy S 4 General] 5hr3wd:
Bought a 32GB Sandisk Ultra for my S4 even after reading this thread :P I had a feeling I'd be one those lucky ones. So here I am a week later. No problems. So far so good :)

Formatted it first with my PC. Full format, FAT32.
[AT&T Samsung Galaxy S 4 General] AxAtAx:
This is the correct procedure, period.
[AT&T Samsung Galaxy S 4 General] FireRaider:
I noticed today I had no external card showing up. It seems like the SD card slot is jacked up?. It reads fine if I hold it in firmly but its temperamental if I don't. I am leaning towards the physical connection theory for some of the complaints. Try pushing the card in the slot with a little pressure and see if it will read it. Could be a temporary solution if you have all your backups on the external card and need them.
[AT&T Samsung Galaxy S 4 General] Reinaldo33897:
I got that warning that my PNY 64gb Class 10 was corrupted and needed to be formatted. I shut phone off for about 5 minutes turned it on again and sd was good to go. So I dont believe the phone is destroying the cards. Possible something happens where it reads it wrong and thinks its corrupted.
[AT&T Samsung Galaxy S 4 General] nacos:
I've been using my SanDisk 64GB micro SD card for quite some time on the S3, then the Note 2 and now on the S4 - never had any problems, however it's probably worth mentioning that in the past I've had some bad experience with various SanDisk cards bought over eBay. I believe the market has been flooded with fake "SanDisk" SD cards; without exception, every single high capacity SanDisk micro SD cards I bought over eBay, I have had some sort of issues with - that's where I stopped...not buying the SanDisk brand but buying from eBay. eBay these days is ONLY about volume, no regard (or control) whatsoever for quality or authenticity - none. I started buying only from reputable places, yes, while (sometimes) paying significantly more. Places like Amazon, BH PhotoVideo, local BestBuy or others alike NEVER dissapointed. In conclusion, I strongly advise to always stay away from deals that sound too good to be true because they never are.
[AT&T Samsung Galaxy S 4 General] seaham358:
Damage SD card error like others.. Was working fine for a few weeks and out of nowhere the error.

Kingston 64gb class 10 works fine in my surface pro before and after the error. Reformatted so well see how it goes.
[AT&T Samsung Galaxy S 4 General] Tinag379:
I had a 16gb lexar class 4 in my s4 but kept getting the error. Just added an 8gb scandisk. So far no errors. I really don't even need the SD card being that I have a 32gb s4 but it's nice for videos.
[AT&T Samsung Galaxy S 4 General] Qliz:
Remount solve it!

This morning when I woke up and saw my Samsung s4 popped up the SD card is damaged. I just google and found this forum. Did not reformat directly as I've read some members said it might kill off the SD card to be totally dead. So I just open up my casing unmount and remount it. Phone power off and restart, and error message gone now :) thanks!

F. Y. I

I'm using SanDisk class 10 64gb SD card for a month. s4 for 2 months.

Ps*previously didn't know that samsung phone can cause some damage to the SD card. If you guys experience something more than damage problem do advise or provide some prevention guidelines :) big thanks!
[AT&T Samsung Galaxy S 4 General] Nexii:
It seems to be that it's just the high capacity cards. I got a 16gb card that I have used with my torch infuse S3 and S4.
[AT&T Samsung Galaxy S 4 General] tyshemi:
I've posted before sandisk doesnt like newer samsung devices use samsung cards they work great
[AT&T Samsung Galaxy S 4 General] MotasemBT:
i have s3 and i have ur same problem for the first time ive had Toshiba flash original with life time warranty and s3 damaged it 3 time and lost alot of file no backup on pc :( so i went to the dealer i said something wrong with ur SD card he said i will change it and he gave me LEXOR sa card 32G today s3 damaged it again so i went again to the dealer and told that this memory is corrupt to he look at me like this O.o and said sorry to refund i already changed new one for you go check your phone because ur the first customer who complain about it

so F S3 thats it i lost over 100 G of important files my mobile is my work everything on it

any solution ? or i sell the s3 ?
[AT&T Samsung Galaxy S 4 General] Thermalwolf:
Friend is having issues with his SanDisk 32 GB sd card. He will leave it sit there and the phone will error reading it from what he's saying. I tell him to restart and it will work for a bit then corrupt again. I didn't wanna believe it lol but it sounds like Samsung phones don't FULLY support "off brand" SD cards. Off brand as in, not Samsung lol

As of right now I personally am not having problems but I'm only using an 8 gig and a 16 gig SanDisk. Seems like low capacity SD Cards don't seem to have a problem but the higher you go the more there seems to be an issue. When I order my high capacity one I'll make sure it's from Samsung given it seems like it's the only obvious choice now :/

This is the first time Samsung is disappointing me. If they don't wanna support other companies memory then they should just say it, not screw people over. This is a big issue in my opinion! :mad:
[AT&T Samsung Galaxy S 4 General] HiTideBlastoise:
I've done searching and this is the most applicable thread, I just rebooted my phone and it stated my 16GB Lexas microSD card is damaged. I've plugged it into my computer and my computer will not read it, it says it is either damaged or corrupted. Have my lost files completely or can I get them back? If I reformat, what should I reformat it to?
[AT&T Samsung Galaxy S 4 General] bdrddnn:
my samsung sdcard 64Go just "died" yesterday , can't see it on galaxy s4, windows or ubuntu !! any solution?
[AT&T Samsung Galaxy S 4 General] Delakit:
Glad this topic was bumped. Now I know to back my files up often.
[AT&T Samsung Galaxy S 4 General] OverHertz:
I've been using an old SD card that I had since before I switched from a captivate to the S4. So far, The SD card hasn't died yet and is still going strong. Haven't noticed anything wrong with it. It's a 2gb card. I think I'll do a backup just in case anything odd happens.
[AT&T Samsung Galaxy S 4 General] sweet2bad:
Unfortunately, i'm in the same boat as many of you here.

i thought is was a cheap SD card i had bought (cus i forgot what brand was in my phone), but when i checked it was a samsung.

i had a 32gb samsung card in my S3 from around Christmas last year, worked fine. the odd picture or song may have got corrupted, nothing really noticeable.

about a month ago i switched from the S3 to S4, and simply took the card out of the S3 (by unmounting it first) then putting it in the S4.

About a week after putting the card into the S4, i noticed about 30% of my pictures (i have about 1600 pics) and maybe only 5% of my songs had become corrupted.

Then i noticed when i plugged my s4 into my computer s would randomly stop recognizing the card was there. Finally one time when my computer recognized the card, i quickly transferred all the data off.

i tried formatting the card in the phone, but even when it said it was complete, the data was still there. So i tried formatting it with my computer - then i kept getting errors saying the format failed. I went back and forth trying to format it in the phone, or in the computer (and i tried a LOT of the formatting programs recommended on this site) and nothing worked, until the card i believe is dead.

ok no biggie, my files are all safe on my computer

this week i picked up another samsung 32gb phone and put it in the s4, and transferred my files over (i scanned all my files for viruses first and went thru and looked at all the pics to make sure they werent corrupt)

2 days after putting this NEW sd card into the S4, i noticed a lot of pictures had become corrupted. then i got the "damaged SD card. try formatting" msg on my phone.

i went thru the process of formatting (using the most recommended programs to format) and it never worked. Every program would halt saying there was an error. I tried formatting in the phone - didnt work. until once again, i think this NEW card is now dead.

thats 2 sd cards in about 3 weeks, and they we're NOT a garbage no name card.

now i'm hesitant to even install ANY card into my phone; which sucks, cus i dont want to save 5gb of data onto the internal memory itself...

if i choose to insert a new card, should i format it in the computer first, or phone? i'm pretty sure there's no special technique other than dont pull the card out while its being accessed...but i cant understand how these cards keep getting ruined...
[AT&T Samsung Galaxy S 4 General] RedIronCrown:
This, a thousand times this. Sandisk was the best name in flash storage, so when the market flooded with fakes they were all marked as Sandisk as the counterfeiters felt they could charge a premium for the name. Other brands don't seem to get faked so much, so you see fewer people complaining about their cards failing.

Poor Sandisk, the high quality of their products made them a target for fakers, now every forum is filled with "my Sandisk failed" posts that are likely not their fault.

* * *

Is FAT32 really a solution? What if you want >4GB files?
[AT&T Samsung Galaxy S 4 General] sweet2bad:
i stayed away from Sandisk, knowing there were alot of fakes out there, but maybe i was naive in thinking Samsung was impervious to this happening...maybe the two samsung cards i bought/used were fakes and thats why they died so fast....?

i'm gonna get a card from an electronics store this week (not off ebay like my last two) and see if this card fairs any better than my last
[AT&T Samsung Galaxy S 4 General] mrnovanova:
Exactly get it from best buy. Format it in fat32. I used gui format. Quick and easy.

I've had that 64g sd for a good while now. And it did give me problems at first. Had to reformat a few times. I do or rather don't do one thing now. Pull the battery out. That's a no no for me. I power it off or reboot it.

Carried by a Raven
[AT&T Samsung Galaxy S 4 General] sweet2bad:
Good to know.

so i'm gonna be super anal with this new card, to see if its the phone or card that is the issue. i'll format first (while not in phone).

Did you insert the card while the phone was on/off? The previous 2 cards, i inserted the card while the phone was on.

and how did you transfer data? I was copying files over while the phone was plugged into my computer; i'm thinking this time, to remove the sd card and transfer the files to it while its directly plugged into my computer
[AT&T Samsung Galaxy S 4 General] mrnovanova:
Yes phone off (though I don't think it matters much) and I put the card in the computer and did the transfers.

Ps don't forget to format in fat32

Carried by a Raven
[AT&T Samsung Galaxy S 4 General] bo8:
Just dropping in to follow this thread.

Second day on my brand new I337M (with Telus) and just popped in a Sandisk Ultra 64GB class 10 microsd today. Let's see how this goes (music on SD, played off PowerAmp during my commute to/from work and Camera is set to save to the SD too).

File transfers performed via Trascend card reader TS-RDF8K on a WinXP box.

MicroSD card was NOT formatted before use (comes formatted, packaging states card is "ideal for Android devices")

Stock and Unrooted ... but unlocked LOL (thanks FastGSM.com!)
[AT&T Samsung Galaxy S 4 General] Craptain Krunch:
No issues with SanDisk Class 10 UHS-1 64gb
[AT&T Samsung Galaxy S 4 General] Dbowss:
Maybe its Sandisks' fault, as in they are releasing faulty cards...

---------- Post added at 05:43 AM ---------- Previous post was at 05:37 AM ----------

I've been using the Sandisk class 10 32gb card, and ive had no issues with it.
[AT&T Samsung Galaxy S 4 General] MikeLibbey:
i'm on my 2nd Lexar 32gb and its still doing the same thing! once a week at minimum its ridiculous
[AT&T Samsung Galaxy S 4 General] bo8:
When does it happen? Randomly? Reboot?

Are you using any syncing utilities/programs?

Is the SD card sitting snug within the slot or does it wiggle or feel a tad loose?
[AT&T Samsung Galaxy S 4 General] MikeLibbey:
Happened a couple times after reboots, a couple times when i was doing nothing but creeping twitter or something on my phone. i am not using any syncing utilities/programs can you elaborate on this? i just put the card in my phone and basically set it and forget it, all i put on there are my nandroid backups and music so i dont take it out or anything. the SD card is perfectly snug no wiggle at all. any thoughts?
[AT&T Samsung Galaxy S 4 General] bo8:
Happened quite a few times but your card and data is still intact?

I read on a few different forums where people using sync programs (between PC and the phone) and having their SD cards go south. Looks like it's not directly related since you don't use any sync progs either.

Doesn't look like anyone knows what the cause of the issue is? I've read it happens to people with Samsung branded SD cards as well as other, lower sized cards too (16GB, 32GB).
[AT&T Samsung Galaxy S 4 General] mrnovanova:
Doing what exactly?
[AT&T Samsung Galaxy S 4 General] MikeLibbey:
giving me the error out of nowhere saying "damaged SD card, try reformatting"
[AT&T Samsung Galaxy S 4 General] mrnovanova:
That used to happen to me too. Usually happened when I pulled out the battery.

Try taking out the back take out the sd card and put it back in afterwards it should rescan and hopefully work. Try to always turn the phone off with the power button or menu. I know it's a drag but it hasn't happened to me since.

Carried by a Raven
[AT&T Samsung Galaxy S 4 General] :
What other phone is a SD "destroyer" ?

BTW, I have a Sandisk Mobile Ultra (200x) 64Gb and I have no problem with my S4.
[AT&T Samsung Galaxy S 4 General] ricktat:
S3 and Note 2..

S2 and S had no issues for me.
[AT&T Samsung Galaxy S 4 General] sweet2bad:
Thanks!

did all of the above...been 3mins and the card didnt go haywire yet!
[AT&T Samsung Galaxy S 4 General] maverickmarc:
Lexar 32 gb

I had the same problem after the firmware update, I just went with it.
[AT&T Samsung Galaxy S 4 General] britoskates:
I think I may have found s possible fix for this issue using a combination of SD formatter and partition master, almost done going to post results later when I get home
[AT&T Samsung Galaxy S 4 General] drkPu1se:
I've had a similar thing happen to me on the Sprint Samsung Replenish and Samsung Reclaim (I think, can't remember if it was the reclaim... but it was the one with the 3.2 in screen and QWERTY slider...) and I tried so many things to figure it out. If you guys have Windows or Mac and a third party SD card reader, use this.

http://panasonic.jp/support/global/cs/sd/download/index.html

Otherwise, I like using Linux or Hyren's Boot and Nuke.

^^
[AT&T Samsung Galaxy S 4 General] sweet2bad:
well

i guess i spoke too soon....

not even 6 full days and the error "SD card removed. Try inserting anew one" came up. My phone wasnt being used (was in idle on my desk at work for about 2 hours).

I came back from a meeting and turned the screen on and saw that error msg.

i checked setting>storage and the phone doesnt 'see' any SD card inserted anymore. So i powered off/on (with card inserted) and the phone doesnt see the SD card anymore, as opposed to it saying 'the card is corrupted'

i turned it off, took the card out, restarted, then inserted the card, and for a split second (in settings>storage) you saw the phone say "calculating" the storage on the SD card, then just stopped and acted like there's no card inserted into the phone.

if this card died, that makes 3 cards this phone has killed in ~1.5months. Damnit.

I dont get this phone.....
[AT&T Samsung Galaxy S 4 General] bo8:
Do you know if Google Play Music is running and auto-indexing stuff (or at least trying to, off the sd card)?