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Hello all, new to the forum (though an active reader all the time, this is a goldmine of info).
I recently got a micro SDHC for my hero, a 16 Gb monster. Well, it monstrously FUBARed when i tried to format it. It was a second hand deal, but i checked at first and had full capacity. I formatted it in Vista, simple right click and format. I didn't look at the details, just all default settings.
The card is now read as a 122Mb card. I tried formatting it in the phone itself, and with the Panasonic SD format program, to no avail. I am now stuck with the tiniest SDHC card in history.
I've read about this issue and others seemed to regain the original capacity with the panasonic program. I also heard about partition managers working for some, but can't find one for memory cards.
Anyone got any ideas? I can put about five songs on my phone right now...
Thanks ahead of time. And sorry if this has been covered, i searched the forums and found a few articles, but didn't find a clear solution.
Yannicus
Post Scriptum...
PS: the card is a SanDisk class 6 and cost me an arm. >_<
Thanx
Where did you get it from? You could have been scammed.
I'd grab a live linux cd and see if you can rescue it. fdisk or something should able to rescue it. I would have some reservations about you being scammed though as mentioned.
I'm looking for an fdisk utility, but not too confident. First of all, its not a SanDisk but a Transcend, my mistake, but i think its fake because the card has no logo on it, or a mention of class 6. Just doesn't look like the one in the picture in the offer (amazon.com second hand) or like the google image results when i search for a class 6 16g microsd.
i wrote back... no answer. Anyway i'll try the fdisk, and see about the linux cd (whenever i figure out exactly what that is). anyway, next time i'll avoid second hand deals, it was too good to be true (30€ when the normal price is twice that).
Thanks for the info anyway, will look into fixing it, but it looks like i got a dodgy deal in the end.
if you paid on a credit card or via paypal you can get your money back, you should also be able to open a case through amazon too, but i have personally not done one through amazon before.
If your phone's rooted & has a decent ROM on it, you already have a linux environment that probably includes parted; that will do a fine job of removing existing partitions, re partitioning & formatting.
looks like its a scam card thars been hacked to lie about its size i have seen thos on usb drives. you could try gparted live cd and see if that helps at all.
Sent from my aHero using the XDA mobile application powered by Tapatalk
paragon partition manager should fix it i had same problem with a 1TB hard drive deciding it was only 60GB.
Im not condoning it but i suggest you use your favorite torrent site if you have one,dont think the trial will do it.
bonesy said:
paragon partition manager should fix it i had same problem with a 1TB hard drive deciding it was only 60GB.
Im not condoning it but i suggest you use your favorite torrent site if you have one,dont think the trial will do it.
Click to expand...
Click to collapse
This is also my suggestion. I cant tell you how many times Paragon has saved my ass when it comes to strange partitions. Give it a go.
I'd also name and shame the Amazon trader so the rest of us can keep well clear.
paragon partition manager should fix it i had same problem with a 1TB hard drive deciding it was only 60GB.
Im not condoning it but i suggest you use your favorite torrent site if you have one,dont think the trial will do it.
Click to expand...
Click to collapse
Dont pirate software just get the gparted live cd its free and will do the same job.
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Sent via the XDA Tapatalk App
I had the similar issue, where Windows Vista was showing a 2GB micro SD card as 40 MB. I tried all partitioning software for windows, but nothing works. Then I formatted the card in Mac, and now its showing 1.8GB. You can use some Linux bootable CD, wasting time on windows software is useless.
Try this before going and pirating something.
http://hddguru.com/software/2007.07.20-HDD-Capacity-Restore-Tool/
I think it should work on SD cards, I've used it on numerous HDD's.
I'm constantly using this - HP USB Disk Storage Format Tool at work to sort out cards and usb drives for people, also works to restore a drive after using it for a linux live usb drive.
Once installed right click and run as admin if using win 7
MG
Arranmc182 said:
Dont pirate software just get the gparted live cd its free and will do the same job.
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
You wouldn't download a car, would you?
When you look at it in Vista, what does it say? It could be that you've actually partitioned it and formatted as NTFS which is unreadable on your phone.
Reformat
Take everything you have off the card first and install this http://www.multiupload.com/IBKQ1A2ENG
Click
Options
Format type - Full Rewrite
Format size adjustment - ON
OK
[ make sure your drive letter is the right one, don't want to format something else ]
Hit - FORMAT
This will wipe the entire card and rewrite it i done it with mine when i thought my ext was dead and just rewrote the entire card but took about 10 minutes for a 4GB so will take a while.
check this one
yannicus said:
Hello all, new to the forum (though an active reader all the time, this is a goldmine of info).
I recently got a micro SDHC for my hero, a 16 Gb monster. Well, it monstrously FUBARed when i tried to format it. It was a second hand deal, but i checked at first and had full capacity. I formatted it in Vista, simple right click and format. I didn't look at the details, just all default settings.
The card is now read as a 122Mb card. I tried formatting it in the phone itself, and with the Panasonic SD format program, to no avail. I am now stuck with the tiniest SDHC card in history.
I've read about this issue and others seemed to regain the original capacity with the panasonic program. I also heard about partition managers working for some, but can't find one for memory cards.
Anyone got any ideas? I can put about five songs on my phone right now...
Thanks ahead of time. And sorry if this has been covered, i searched the forums and found a few articles, but didn't find a clear solution.
Yannicus
Click to expand...
Click to collapse
search google using this key word How-to-format-your-SD-card-back-to-the-original-si, then click on the link with this domain instructables
Last night just before plugging in my beloved SGS2 I saw that there was an icon of a microsd card with an exclamation mark on it. The phone was complaining that the card was corrupt and unusable.
Card is a Patriot brand Class 10 16GB (Yeah, I went with a cheaper model). The file system was unusable and unreadable when I tried to read the data with a micro-sd to SD adapter on my PC. I was not able to retrieve any info.
I switched to an 8GB Sandisk card from a previous phone, but am concerned now about losing data again.
Has anyone else encountered a corrupt micro-sd card on their SGS2, or a similar problem with a Patriot brand card?
Thanks!
I was facing the same problem too. reformat it and it will work again....
however the micro sd getting corrupted every month.....
now sending it for rma...
Corrupt Micro SD
I have the same problem I formatted it with my sgs2 but now I think mine is worse, my 16gb micro SD card says it has 0 bytes in windows and therefore is to small to be formatted and in osx and ubuntu it says it has 2.2 tb and has errors and cannot be formatted.
It freaking happened again! Different card now, bought a 32GB class 10 on boxing day. Just a fortnight later I've lost all the files from it!
Sent from my GT-I9100 using XDA App
Have you tried just taking the card out of the phone and just connecting it directly to a pc with a card reader? My card use to become corrupted when a file transfer went wrong on my phone, but I just remove it and plug it in directly to my pc and it goes back to normal.
The first time I did, couldn't be read. Keeping backups for now.
Sent from my GT-I9100 using XDA App
Hi everyone, just wanted to confirm that 64GB MicroSDXC cards do work. I bought this one http://www.amazon.com/dp/B007WTAJTO/ref=pe_175190_21431760_M3T1_ST1_dp_1
At first it will not work, but you must format it with the phone and it will work well. Reports 59.6 GB
Saludos,
Gustavo
gusbeto37 said:
Hi everyone, just wanted to confirm that 64GB MicroSDXC cards do work. I bought this one
At first it will not work, but you must format it with the phone and it will work well. Reports 59.6 GB
Saludos,
Gustavo
Click to expand...
Click to collapse
Same here, works perfectly! No problems since I got it 5 days ago... :good:
an21281 said:
Same here, works perfectly! No problems since I got it 5 days ago... :good:
Click to expand...
Click to collapse
Same here.
Sent from my DROID RAZR HD using xda premium
having tons of problems with mine; tried formatting in Windows (FAT32 with "guiformat.exe"), formatting in the device a few times...
Every time, when trying to copy stuff onto the card from my Windows machine, after a few GB the connection just drops...and then the card doesnt seem to work properly until re-format. Everything is *extremely* slow to respond, even to the point of screwing with explorer when I open "Computer" in Windows from the start menu...
Bad device? Bad card? PEBCAK?
SturmenE36 said:
having tons of problems with mine; tried formatting in Windows (FAT32 with "guiformat.exe"), formatting in the device a few times...
Every time, when trying to copy stuff onto the card from my Windows machine, after a few GB the connection just drops...and then the card doesnt seem to work properly until re-format. Everything is *extremely* slow to respond, even to the point of screwing with explorer when I open "Computer" in Windows from the start menu...
Bad device? Bad card? PEBCAK?
Click to expand...
Click to collapse
You probably got a dud. I would return it. Haven't had any problems like that here.
Sent from my DROID RAZR HD using Tapatalk 2
SturmenE36 said:
having tons of problems with mine; tried formatting in Windows (FAT32 with "guiformat.exe"), formatting in the device a few times...
Every time, when trying to copy stuff onto the card from my Windows machine, after a few GB the connection just drops...and then the card doesnt seem to work properly until re-format. Everything is *extremely* slow to respond, even to the point of screwing with explorer when I open "Computer" in Windows from the start menu...
Bad device? Bad card? PEBCAK?
Click to expand...
Click to collapse
Probably its a fake, do a google search about fake flash drives and memory cards and use the sugested program to test the card.
Warning, it will be slow.
Sent from my GS+ using ivendor's CM10 and xda premium
itsdubai said:
You probably got a dud. I would return it. Haven't had any problems like that here.
Sent from my DROID RAZR HD using Tapatalk 2
Click to expand...
Click to collapse
believable- this is why I only buy Extreme Pro CF cards for my camera
alas...the Extreme Pro line stops at 16GB for the MicroSDXC line, (perhaps thats a hint at the difficulty of reliably making rad MicroSD cards?) and I'll be damned if I have an Android with less storage capacity than an iPhone.
saulotas said:
Probably its a fake, do a google search about fake flash drives and memory cards and use the sugested program to test the card.
Warning, it will be slow.
Click to expand...
Click to collapse
Doubtful...sold by Amazon.com LLC. I don't buy eBay shiest unless I can't find it on amazon or somewhere that either accepts google wallet or is within driving/shouting distance. Still though, I took your advice and downloaded H2testw and will run the test tonight.
Thanks for all the ideas guys!
That used to happen to me, got very frustrated because I could never copy things to my flash cards. Turns out the problem was my card reader. Try getting one of the USB ones that can actually read SDXC. I don't have one, so what I did is put it in the phone, then connect via USB to the computer in mass storage mode and it worked great.
I had the 64GB SDXC as well, it at first seemed to work, but don't be surprised if it stops working. Motorola, and I believe stock Android do not support SDXC yet. I have a somewhat detailed thread here: http://www.droidforums.net/forum/dr...d-cards-hd-maxx-hd-class-10-32gb-vs-64gb.html
When I got my card, popped it in, it formatted correctly, and seemed to work fine. As I started to put it through its paces it started to just not work. On ICS when you used the Storage option to transfer media to the SD card, it would stop halfway through and throw out errors. Eventually certain apps would stop writing/seeing the card like backup apps etc..
Be careful going forward, and test it hardcore. Transfer files back and forth, I always had issues with movie files. See if Root Explorer or other explorer apps can see it, see if Titanium Backup or My Backup Pro/SMS Backup can see and write to the card.
And yes, I did not get a dud, its works in other non-Android devices and works and tests perfectly in multiple computers. Just be cautious.
macpro88 said:
I had the 64GB SDXC as well, it at first seemed to work, but don't be surprised if it stops working. Motorola, and I believe stock Android do not support SDXC yet. I have a somewhat detailed thread here
Click to expand...
Click to collapse
These are all the same symptoms I'm having. Well, it looks like Motorola actually had testing and reasoning behind "supports up to 32GB" :-| That'll teach us to think we're smarter than the factory QA guys...
Still though, it's a little disappointing.
SturmenE36 said:
These are all the same symptoms I'm having. Well, it looks like Motorola actually had testing and reasoning behind "supports up to 32GB" :-| That'll teach us to think we're smarter than the factory QA guys...
Still though, it's a little disappointing.
Click to expand...
Click to collapse
Indeed, some of the Sammy devices support the SDXC 64GB card, but I think that's baked into TouchWiz. Hopefully as SDXC gets more popular it will become supported by Android all together. It would be nice to have at least half of my music library on my car so I don't have to stream all the time lol.
Confirmed working with a 64GB SDXC, works pretty well actually, now I'll never run out of space.
I bought 2 64GB micro SDXC cards. One for my Xoom and the other for my upcoming XT925. My Xoom was unable to format it so I used EaseUS Partition Master to format my 64GB cards as FAT32 partitions. So far so good...
I tried my sandisk SDXC 64Gb yesterday with no luck. It was formated to exFat though. I will try EaseUS tonight and try formatting it to Fat32.
Cheers
cheetah2k said:
I tried my sandisk SDXC 64Gb yesterday with no luck. It was formated to exFat though. I will try EaseUS tonight and try formatting it to Fat32.
Cheers
Click to expand...
Click to collapse
I just got a 64gb micro sdcard, when I first put it in my phone it was exfat formatted, so my phone couldn't read it. Once I formatted the card with the fat32formatter (found online), it worked great. Good luck.
Sent from my XT925 using Tapatalk 2
I have a 64GB card. No issues.Took the card out of my Maxx.
I bought a 64 sandisk sdxc class 10 and tried it in the phone. Didn't work. Formatted to fat32 with a partition program, still wouldn't work. Got fed up, deleted all the partitions, threw it in the phone and itr was recognized, but blank. Had the phone format it, and it works. Phenomenally actually. Haven't tested read/write, but I've filled it a few times over looking for problems and had none. Without looking I think I have just shy of 40 used on it right now.
You'd think Motorola would say something about that.
Got a 64gb sandisk class 10 and it's really buggy.
Forceclose/card disabled automaticly/cant see my files/Many lags.
So for me the xt925 is not compatible with it.
I've been using mine for about a year now, it's been working flawlessly. I had to format in my phone the initial time I first used it.
Sent from my XT925 using xda app-developers app
Hi guys
I know about the SanDisk Micro-SD card problem with Samsung Galaxy S3's and I happen to be one of the victims.
My SanDisk Micro-SD 32gb Ultra has had problems in the past. It sometimes says blank sd card but it eventually works again. At one point it said sd card damaged but the card still worked. Up until yesterday it hasn't stopped working for a while but now my phone says blank sd card. I tried putting it into a windows computer but it cannot be detected. When using a usb adapter it just shows a device in drive "?:" and can't do anything with it and when using a micro sd to sd card reader it doesn't show at all. In Mac the micro sd to sd card reader is detectable and shows the size of 32.1 MB and is called "Apple SDXC Reader Media". The micro sd card itself is not detectable it seems. I have tried many device recovery software but none of them work. They all seem to just be scanning the card reader and not the micro sd itself.
Does anyone know how I can recover the Micro-SD card?
It is quite important because I have my school laptop data backed up on it (which was just handed in for a system upgrade and being wiped) and also my phone pictures, videos and other stuff.
Any help will be greatly appreciated
blackhand64 said:
Hi guys
Does anyone know how I can recover the Micro-SD card?
It is quite important because I have my school laptop data backed up on it (which was just handed in for a system upgrade and being wiped) and also my phone pictures, videos and other stuff.
Any help will be greatly appreciated
Click to expand...
Click to collapse
It may be recoverable by a specialist company, But i believe the going rate is approx £900. My first step would be to try sticking it in the freezer for at least 8 hours (but as long as you can manage the longer the better) then try it in your phone, if this works back up all the data and RMA the card to SanDisk. Let this be a lesson to us all that all data on our cards should be backed up regularly, I understand you werent expecting the card to fail but had you lost your phone the result would have been the same.
I doubt you will be able to recovery the data, formatting the card with the sd formatting tool might make the card useable again but I doubt it. When I've had cards corrupt more than once it is best to throw them away and get a different make.
You can try looking for a specialist data recovery expert, locally or on the web - if the data is very valuable to you.
ghostofcain said:
It may be recoverable by a specialist company, But i believe the going rate is approx £900. My first step would be to try sticking it in the freezer for at least 8 hours (but as long as you can manage the longer the better) then try it in your phone, if this works back up all the data and RMA the card to SanDisk. Let this be a lesson to us all that all data on our cards should be backed up regularly, I understand you werent expecting the card to fail but had you lost your phone the result would have been the same.
Click to expand...
Click to collapse
First of all I don't have £900 to throw around, besides the fact it totally isn't worth £900 to get it fixed.
Second, before I start chucking my SD card in the freezer what exactly does freezing it do and how will it help it? You sure it won't just destroy it for good? I can leave it in the freezer for as long as needed as I can't exactly use the card in the mean time.
Thanks for the reply though
Hope I can get it to work
Freezing is a method that may give a brief recovery on some hard disc failures .
Note hard disc never heard of freezing ram or why it could work .
jje
JJEgan said:
Freezing is a method that may give a brief recovery on some hard disc failures .
Note hard disc never heard of freezing ram or why it could work .
jje
Click to expand...
Click to collapse
There's someone around here that reported it worked for them, and it's not gonna do any harm to try. But true it would be at best a temporary fix.
Sent from my GT-I9300 using Tapatalk 2
ghostofcain said:
There's someone around here that reported it worked for them, and it's not gonna do any harm to try. But true it would be at best a temporary fix.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Well I left it in the freezer for almost 24 hours and tried it and it still doesn't work
What do I do
Any other suggestions?
Sent from my GT-I9300 using xda app-developers app
I have the same card, no problems at all.
Gesendet von meinem GT-I9300 ^_^
toterkeks said:
I have the same card, no problems at all.
Gesendet von meinem GT-I9300 ^_^
Click to expand...
Click to collapse
You are lucky enough to have a card without the problem. Doesn't help my situation though....
When did you get it?
Sent from my GT-I9300 using xda app-developers app
blackhand64 said:
Well I left it in the freezer for almost 24 hours and tried it and it still doesn't work
What do I do
Any other suggestions?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Not a lot.Contact retailer, or SanDisk direct for a replacement card and chalk it down to experience.
This is a known issue with sandisk at the moment. They are replacing cards when they die.
As for data, please look into foldersync for future. Sync data to cloud or computer
Sent from my GT-I9300 using Tapatalk 2
rootSU said:
This is a known issue with sandisk at the moment. They are replacing cards when they die.
As for data, please look into foldersync for future. Sync data to cloud or computer
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Ok then I'll just have to get it replaced.
A thought just occurred to me though.
Before I had my school laptop backed up on my micro-sd card I had it backed up on a usb. Because it was only an 8gb usb I transfered it to my micro sd because it took up too much space. I've heard of software that can recover deleted files from devices. Would it be possible to recover the deleted backup on my usb? The backup in total would have been about 1 - 2gb. If so, what free program could I use to recover it?
Thanks in advance
Possibly. As an IT support engineer, I don't want to get your hopes up though.
Things like NTFS get back may work but most if them are not free.
I took Handy recovery 1 (free version) from a bootable cd tool once, you could try that and may recover a small amount of data but its always safest to assume it gone.
The more you use the usb device, the less chance you have of recovery
http://db.tt/VQwJwHoI
Sent from my GT-I9300 using Tapatalk 2
No worries mine died after 5 minutes of use bought from amazon 64gb ultra sdxc .I had it working but the data I put in gets erased immediately and if I reboot my phone the data is still there then it shows 59.47 gb as full seconds later blank sd or damaged error.now it just won't format in any way fat 32 or exfat.im rma back to Sandisk in the morning.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
rootSU said:
Possibly. As an IT support engineer, I don't want to get your hopes up though.
Things like NTFS get back may work but most if them are not free.
I took Handy recovery 1 (free version) from a bootable cd tool once, you could try that and may recover a small amount of data but its always safest to assume it gone.
The more you use the usb device, the less chance you have of recovery
http://db.tt/VQwJwHoI
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
If nothing works then I may take it to my school IT guys (when school starts again, currently holidays)
Think they would have something to fix the card or recover the data?
It depends on the state.
The media has a File System. This could be FAT32, NTFS, exFAT etc. Essentially (without going technical) imagine these file systems as a database table. When you add a file to the media, an entry is written to the table to identify the exact location of the file on the media. That way, when an operating system views the card and the user accesses a file, the table tells the OS where to look for the file.
Typically with these file systems, when you delete the file, the file remains. Only the Table entry is removed. The OS can no longer locate the file. the OS is shown the free space as per what the table says - not what is really the truth.
So once a file is deleted, 3rd party applications can scan the media and find the files (without using the table).
Of course there is a problem in that any space that the table shows as unallocated (you deleted the file), new files will overwrite the old files. That is when the data becomes unrecoverable.
So yes, it's possible that even if the formatted filesystem is damaged, the data on the media can be recovered. But if you added new files since, then the chances are the unreferenced data has been actually overwritten. In this case, it is gone.
rootSU said:
It depends on the state.
The media has a File System. This could be FAT32, NTFS, exFAT etc.
So yes, it's possible that even if the formatted filesystem is damaged, the data on the media can be recovered. But if you added new files since, then the chances are the unreferenced data has been actually overwritten. In this case, it is gone.
Click to expand...
Click to collapse
What file system are you taking about here? The damaged file system (micro-sd card) can't have new files added to it as it is inaccessible. It also has not been formatted since the problem. The usb with the deleted files is not damaged and not formatted but I have put new files on it since. Sounds like you're combining the two different devices. Sorry if this is a bit confusing.
Sent from my GT-I9300 using xda app-developers app
blackhand64 said:
What file system are you taking about here? The damaged file system (micro-sd card) can't have new files added to it as it is inaccessible. It also has not been formatted since the problem. The usb with the deleted files is not damaged and not formatted but I have put new files on it since. Sounds like you're combining the two different devices. Sorry if this is a bit confusing.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Both; I am answering the question for both devices at once. I'm not confused
rootSU said:
Both; I am answering the question for both devices at once. I'm not confused
Click to expand...
Click to collapse
Ok. I thunk I'm da confused one
Anyway, so basically you're saying that it is possible for the IT guys at my school to fix the micro sd card and recover its data right? I don't think I'm going to bother trying to recover the deleted one on my usb.
Sent from my GT-I9300 using xda app-developers app
The s3 doesn't play very well with sandisk cards in general (samsung confirmed this) . I personally use a pny and have no issues, I would suggest trying to return the card and get a different brand.
Sent from my SPH-L710 using Tapatalk 2
I bought a SanDisk Ultra 32gb microsd card to use it with my Galaxy S4 GT-I9500 several months ago, I've been using it with no hassle for a while now. Few days ago, my device stopped recognising the card, as if it didn't even exist. So what I did was insert the microsd into my laptop using an adapter, and I could see all the files intact and safe. The problem is, I cannot copy the files off the card, it's like it keeps disconnecting every about 10secs, once a copy or move operation starts, it goes about 10% and then stops, forcing me to cancel the operation, and sometimes it doesn't even start. The files are there, i can view them, i just cannot copy them. I want to copy the files off in order to format the microsd card to be able to use it again.
Another major problem is, files and complete folders are disappearing! I lost my photos folder and all my music folder (luckily i have a backup of those).
I have read somewhere that SanDisk manufactured faulty 32gb cards, and i get to return it and get a replacement, but i bought it from Amazon and i shipped internationally, it will be very cost inefficient to return it. Any suggestions?
Sent from my GT-I9500 using XDA Free mobile app
Well, I am not really sure about flash deives but if a hdd shows a behaviour like this, most of the time one or more sectors are corrupted and need to be remapped. You could try chkdsk on your card.
Sent from my RAZR M using XDA Free mobile app
razor411 said:
Well, I am not really sure about flash deives but if a hdd shows a behaviour like this, most of the time one or more sectors are corrupted and need to be remapped. You could try chkdsk on your card.
Sent from my RAZR M using XDA Free mobile app
Click to expand...
Click to collapse
Yepp tried that, it said it found some errors and that it fixed them, same problem though.
Sent from my GT-I9500 using XDA Free mobile app
Well, try the tools on ultimate boot cd. I dont recall the names but these tools helped me a few times.
Sent from my RAZR M using XDA Free mobile app
similar issue
Hi,
am facing similar problem on my SD card, i have been using this card as ext2 and fat32 dual partition mode and now suddenly the files from fat32 partitions are getting deleted, tried chkdsk and it did repair some bad sector but i am still facing the issue.
any suggestions or should i just replace my sd card.
thanks in advance.
This might be a bit late but I'm just posting so that others having the same problem can benefit from this.
After the described problem above happened, I gave up on retrieving the files on the card after many many failed attempts in various ways (copying individual files, backing up the card, used some 3rd party apps) but nothing seemed to work.
So I went ahead and formatted the card to FAT32 using my laptop, copied a few songs to it and it seemed to work well. Few hours later, the same problem happens. I tried using the exFAT format, did the same with different songs (to rule out the songs themselves being corrupted), but still had the same problem few hours later. My last trial was formatting it to FAT32 but using my galaxy S4 this time, and with no surprise, the same problem persisted. At that stage I gave up on the card.
I contacted SanDisk support using the live chat feature on their website, before I told him my problem, I asked him to check if my card has the new firmware or not (they manufactured some faulty cards and blamed it on the old firmware they used). He told me it did have the new firmware, and then I realized that my card was corrupted beyond repair. He asked me for some information to ask for a replacement. I didn't replace it because shipping it back would cost a lot, but id you're living in the states then just replace it.
On another note, I am not going to buy another SanDisk card, I will be trying samsung cards as they seem to have very good reviews.
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