[Q] μ files on my sd card. is GS3 frying sd card? - Galaxy S III Q&A, Help & Troubleshooting

First of all, im using a 4.1.2 stock and my device is rooted
So i had an Sandisk 64 GB class 10 for some time which one day became a "read - only" card...
So afterwards i bought a Samsung 32 GB class 10 which I found out also had problems because i could put about 10GB of files and everything more that 10 GB turned into wierd folders that their name starts with "μ" and there where no actual content inside and i couldn't delete them.
So now i'm at my third try, again with a Samsung 32 GB class 10 which also has the same problem, only now i can write on it about 20 GB of data before files start to get curropted.
Just want to say i bought all 3 SD card from Ebay, and though i guess they might be fake (tons of bad luck), after searching the web I found out there are many GS3 users with the same problem...
So i just want to put an end for this question..
Is GS3 frying SD cards? is there something i can do to stop it from destroying SD cards? can i fix somehow the SD cards?
thanks alot!

Hi! when you are asking a question you should include details such as operating system(4.1.2 , 4.3, 4.4, stock, rooted and so on) and file system. I noticed while searching google that the majority of "s3 fried sd cards" so to speak are sandisk and in your case it seams that there is no such "limitation". Maybe if you give more details someone might be able to help.

vader20 said:
Hi! when you are asking a question you should include details such as operating system(4.1.2 , 4.3, 4.4, stock, rooted and so on) and file system. I noticed while searching google that the majority of "s3 fried sd cards" so to speak are sandisk and in your case it seams that there is no such "limitation". Maybe if you give more details someone might be able to help.
Click to expand...
Click to collapse
Well, I edited my post.
you can see the first lines contains the detailes you described.
can't think of any other relevant details.

What type of file system do you have on sd card? is it fat32 or Ext4?

vader20 said:
What type of file system do you have on sd card? is it fat32 or Ext4?
Click to expand...
Click to collapse
not sure. I formated it with my GS3 and the computer won't recognize it without reformating it.

Worst case scenario is your phone somehow corrupted the sd card and that is that. I had a similar problem with my usb flash drive which i used on-the-go and unmounted it before removing it but when it happened i didn't make a backup(as always) and got stuck with a nice keychain. If you have the possibility to format it under windows with a card reader and choose fat32 at least you have a working sd card, otherwise use your warranty for the sd card(if you have one) and always BACKUP.

vader20 said:
Worst case scenario is your phone somehow corrupted the sd card and that is that. I had a similar problem with my usb flash drive which i used on-the-go and unmounted it before removing it but when it happened i didn't make a backup(as always) and got stuck with a nice keychain. If you have the possibility to format it under windows with a card reader and choose fat32 at least you have a working sd card, otherwise use your warranty for the sd card(if you have one) and always BACKUP.
Click to expand...
Click to collapse
but do you think that my device is malfunctuning in a way that will keep frying my SD cards..?

well since this is the second sd card i personally send it on warranty(as hard as it may be without the phone) because it seems that something is not right with the contacts of the card reader circuit board. I read somewhere that on some phones the card reader slot had some contacts partially detached and so the sd card kept getting corrupted. Search a bit on google about this issue and take into consideration using your phone's warranty. Best of luck!

That is a bit strange. Unless you're used to remove the sd card with the phone accesing to it (no safe removing) or removing the battery while the phone is running, that's absolutely not normal.
I have my 32GB sd since 2010 and I never had any problem. I formatted it this year because it had tons of useless data and I liked to have it clean.
Of course it's not from Ebay! That is bulls**t and use to fail suddenly.

Related

[HELP] Micro SDCard 32GB SDHC

Hello,
Me and my co-workers have exactly the same Phone GT-i9100, we bought exactly the same Micro SDCard, to the same provider, and Im the only one that the phone is not recognizing the SDCard. This is what I get:
http://dl.dropbox.com/u/52817124/SC20120124-143033.png
We switched SDCards and again I´m the only on that the phone does not recognize the SDCard, and then I tried with an used one (4GB) my partner was using before and it worked, so Its not like my phone does not recognize ANY SDCards!!! So I dont understand how come the NEW 32SDCard is not working ONLY FOR.
Any help would be appreciated!!! Thanks in advance,
Does it work on your pc ... if not your card is probably dud
LSAMUELCF said:
Hello,
Me and my co-workers have exactly the same Phone GT-i9100, we bought exactly the same Micro SDCard, to the same provider, and Im the only one that the phone is not recognizing the SDCard. This is what I get:
http://dl.dropbox.com/u/52817124/SC20120124-143033.png
We switched SDCards and again I´m the only on that the phone does not recognize the SDCard, and then I tried with an used one (4GB) my partner was using before and it worked, so Its not like my phone does not recognize ANY SDCards!!! So I dont understand how come the NEW 32SDCard is not working ONLY FOR.
Any help would be appreciated!!! Thanks in advance,
Click to expand...
Click to collapse
May be trying this check list:
Mount SD card
Format SD cad>Mount SD Card
Format SD cad in the other phone or PC>Mount SD Card
Try Stability Test V2.3 in the other phone
Try SD Tools V2.4 in the other phone
Dust inside the SD socket?
Have you tried formatting in your phone?
Could be you got unlucky, and got a faulty card reader in your phone. But also possible the sd card just needs to be formatted.
What kind of sd card is it? And is it formatted already?
hgroove said:
May be trying this check list:
Mount SD card
Format SD cad>Mount SD Card
Format SD cad in the other phone or PC>Mount SD Card
Try Stability Test V2.3 in the other phone
Try SD Tools V2.4 in the other phone
Dust inside the SD socket?
Click to expand...
Click to collapse
It won´t Mount to the Phone, when I hit "Mount" it would keep on saying Mounting but it doesn´t... When I connect the phone (with the SDCard in it) to the PC the SDCard is not shown. However, it does if its in my friend´s phone.....
Im thinking it could be that my phone is rooted, unlike my friend´s. So I think I could take it back to its original ROM and try, if it doesnt work then take it to warranty cuz the SDcards work just fine in my other friend phone (which is the same one as mine, bought it together, same day, same company).
Its a: SanDisk MicroSDHC 32GB
ctomgee said:
Have you tried formatting in your phone?
Could be you got unlucky, and got a faulty card reader in your phone. But also possible the sd card just needs to be formatted.
What kind of sd card is it? And is it formatted already?
Click to expand...
Click to collapse
Yes it is formatted, did it twice in my friend´s phone. I dont think its an sd card problem, its more like a feature/option thing, which I dont get to see any solution but to flash back to stock rom the phone.
LSAMUELCF said:
Yes it is formatted, did it twice in my friend´s phone. I dont think its an sd card problem, its more like a feature/option thing, which I dont get to see any solution but to flash back to stock rom the phone.
Click to expand...
Click to collapse
Right; I mentioned the card as a POSSIBILITY, but that another possibility is that the card READER in your phone is jacked up. Root should NOT have any affect in your phone's ability to read an sd card. I have root on my phone, and it reads my class 10 16gb sd card just fine. But it may be worth it to try flashing back to stock to see if that helps. Otherwise, your only option left after that is warranty.
ctomgee said:
Right; I mentioned the card as a POSSIBILITY, but that another possibility is that the card READER in your phone is jacked up. Root should NOT have any affect in your phone's ability to read an sd card. I have root on my phone, and it reads my class 10 16gb sd card just fine. But it may be worth it to try flashing back to stock to see if that helps. Otherwise, your only option left after that is warranty.
Click to expand...
Click to collapse
The thing is that it can read a 4GB micro sd that my other friend was using before, thats why I think it has something to do with my phone not reading that specific type of SDCard for some reason. I think of going back to stock because Root is the only difference between mine and my friends phone/MicroSDCard.
I´ll let you guys know my results in case someone else finds the same problem.
LSAMUELCF said:
The thing is that it can read a 4GB micro sd that my other friend was using before, thats why I think it has something to do with my phone not reading that specific type of SDCard for some reason. I think of going back to stock because Root is the only difference between mine and my friends phone/MicroSDCard.
I´ll let you guys know my results in case someone else finds the same problem.
Click to expand...
Click to collapse
Sounds like it is having difficulty reading SDHC (High Capacity) cards. I think standard SD cards can get up to 8GB, so I'm betting your 4GB card is a standard micro SD, and not an SDHC. SDHC was created for 16 and 32GB.
LSAMUELCF said:
It won´t Mount to the Phone, when I hit "Mount" it would keep on saying Mounting but it doesn´t... When I connect the phone (with the SDCard in it) to the PC the SDCard is not shown. However, it does if its in my friend´s phone.....
Im thinking it could be that my phone is rooted, unlike my friend´s. So I think I could take it back to its original ROM and try, if it doesnt work then take it to warranty cuz the SDcards work just fine in my other friend phone (which is the same one as mine, bought it together, same day, same company).
Its a: SanDisk MicroSDHC 32GB
Click to expand...
Click to collapse
Ok discard software related problem:
1- Flash original ROM-Kernel and try,
2- Then discard hardware related problem(in the phone and the SD card side)
Phone side;apply an electronic spray cleaner in the socket an SD Card. Use an anti-static wrist strap
3- SD card side; use software tools i recommended before in several SD cards.
Just to let u guys know, it was a hardware problem. I had to get a new phone.
Thanks,
Sent from my GT-I9100 using xda premium

Damaged SD Card...not!

I got my Dell Streak second hand but the 16Gb card that came with it wasn't working. Not that the seller had mentioned it.
So, I've actually bought 2 16GB micro SD cards and both have had the same problem. The device recognises it upon first installation but when writing further data upon it, e.g. connecting it via USB or taking the micro SD card out and using an SD adapter, the files become corrupted. It doesn't matter what type of file it is, it all gets corruped and it says that the SD is damaged when the phone is trying to mount the SD card again.
This is the 3rd time it has happened so it's no coincidence.
My 4gb that I had in my previous XDA Orbit has been working fine ever since I got my Streak with no problems whatsoever.
Am I missing a driver for 16gb+ SD Cards?
EDIT- Just had a thought. I was transferring all my stuff from my previous card that was in my Streak to the new one, could this have caused any problems? I assumed you could transfer all SD data from one card to another and still have all the apps and data working?
EDIT x2- Had another thought! It seems like when things get put onto the root of the SD card, it causes corruption but when it gets put into a folder, it seems okay. Now this isn't a problem when the device writes things to the SD card- they get put into the appropriate folders, however I have never had this problem with the aforementioned 4gb card and always write pictures and movies onto the root of the SD card to view without any problems.

[Q] External SD card may be damaged (any DEFINITIVE answers?)

First of all, I am very aware this has been asked many times and will be asked many times after this. I have read MANY threads both here and elsewhere and have never seen a definitive answer (which may not exist)...
My phone has started telling me about once per day that my exernal sd card may be damaged and unmounting it. If I reboot, it works fine until the next time it decides to tell me that again. I have checked it several times with Check Disk on Windows and it never finds any problems. I am currently using a SanDisk 64GB class 10 card purchased off Amazon. Yesterday, I copied everything off the card, completely formatted it (not the quick format and in the required Fat32 format) using the GUI version of Fat32format and copied everything back to the card. Both before and after formatting, Check Disk found no issues. Today, I received a notification that my SD card had unexpectedly been removed (it had not). A few seconds later I received notification that my SD card may be damaged and may need to be formatted. How in the hell Android can tell me that a SD card is corrupt after it already told me that it was no longer in my phone is a mystery to me...
This is the second time I started experiencing this issue. The first time was with a 32GB class 4 SanDisk card that I think WAS becoming corrupt because Check Disk would find issues with that card, so I ended up replacing it with the card I am using now (less than 2 months ago). So... is my card failing? Or is there any reason that Android would report an SD card damaged when it is not?
I would really prefer if the card was failing, because then I would at least know how to fix the issue (get a new card). However, I am not willing to get a new sd card every couple months just because Android has sd card issues. The only recent (major) changes I have made to my phone before this issue started up again was installing the V6 SuperCharger script and changing from Busybox v1.20.0 to Busybox v1.20.2. I am likely going to remove those and see if this clears up, but is there a reason that Android would be falsely reporting a sd card as damaged or is it a sure sign of a failing card?
rsngfrce said:
but is there a reason that Android would be falsely reporting a sd card as damaged or is it a sure sign of a failing card?
Click to expand...
Click to collapse
Mostly happens when the SD card is not what it says, it is, (like imitations) , anyway here is some insight

[Q] Lollipop SD Card problem

I was in ES file explorer trying to move files to my external sd card and all of the sudden I get an error saying task failed. I can't delete or copy anything to my external sd card now. It's a 64 gb Class 10 Sandisk Ultra micro sd card. I formatted it to Fat 32 a long time ago. I don't know what's going on. And now all of a sudden Root browser in Root Explorer doesn't work either. I can't write anything on my phone. I even reverted back to stock android to see if it was the rom problem and that wasn't it either. I'm completely lost in the dark now.
I'm running CM12 Beta on my G3 if that means anything.
Try getting into it via twrp I had a problem like that a while back and I tried twrp and it did work I ended up wiping via twrp. You can also try putting it in your computer and partitioning it. I my self repartitioned it and just deleted the current one and made a new one. It seems that some roms or apps ect can cause the software in the sd card to become corrupted also try mounting and unmounting it before you delete anything.
If you are rooted you need to download SDfix from the play store. It says kit kat but works with 5.0.X fine. SD write access is still limited in lollipop unless the app creator allows SD access. If you were on zv6 on a custom rom it was probably baked in.
Sent from my LGLS990 using XDA Free mobile app
1619415 said:
Try getting into it via twrp I had a problem like that a while back and I tried twrp and it did work I ended up wiping via twrp. You can also try putting it in your computer and partitioning it. I my self repartitioned it and just deleted the current one and made a new one. It seems that some roms or apps ect can cause the software in the sd card to become corrupted also try mounting and unmounting it before you delete anything.
Click to expand...
Click to collapse
Yeah I tried formatting it and everything. The micro sd card is stuck in read only mode. I think it's dead. I put the micro sd card back into my S4 and my S4 couldn't write to it either. I ran CHKDSK on command prompt and it said that there's a corrupt file on the mciro sd card but it can't repair it because the micro sd card is stuck in read only mode. I tried to format it usng the SDFormatter and nothing is working. I used google and people are saying that when a micro sd card goes into read only mode it means that it's about to die. :c sucks cause it was 64gb and I've only had it for a year.
I had 2 SanDisk 64GB cards go bad soon after I formatted them to FAT32. I don't know why, but it happened. SanDisk could not explain it, but they were really good about replacing the cards.
stopeject said:
I had 2 SanDisk 64GB cards go bad soon after I formatted them to FAT32. I don't know why, but it happened. SanDisk could not explain it, but they were really good about replacing the cards.
Click to expand...
Click to collapse
I would contact SanDisk about it but I got the SD card in October of 2013 from BestBuy as a birthday present and I don't have the original packaging or receipt so I don't have proof of purchase so I doubt I'd be able to get the micro sd card replaced.
Zure said:
I would contact SanDisk about it but I got the SD card in October of 2013 from BestBuy as a birthday present and I don't have the original packaging or receipt so I don't have proof of purchase so I doubt I'd be able to get the micro sd card replaced.
Click to expand...
Click to collapse
Chat with SanDisk. IIRC, they didn't ask me for a receipt, just where and when the card was purchased. It has a lifetime warranty, they will replace it and will even send you a free shipping label.
I have the same problem, I was copying files to my external sd card from internal and all of a sudden it said "moving files failed" and then nothing on my sd card would show up, though on storage information it shows that it's mostly full. But all the files are unreachable until I reboot then everything is fine while I'm listening to music, but if I stop for a while or try to move anything it messes up again. Anyone know of a fix?
I'm on lollipop, but the sd fix app would not do anything for me... Running Danvdh's Google Play Edition Rom
Sent from my GT-I9505G using XDA Free mobile app

SD card problem

Hi guys im having a bit of drama with my sd card and my samsung galaxy tab a 10.1 running android 7.0 unrooted
I first noticed this yesterday as utorrent kept throwing me an error during my download, when i selected the sd card as the download location i noticed it said app data then once i changed the location to internal app data things worked fine.
I tried to delete the failed download but a little error message came up unable to delete so i formated my sd card and it asked for me to select a file to allow write function, i moved my downloads over to the sd card then continued with another download. utorrent has again failed halfway through then upon looking it has actually wiped my sd card completely nothing shows up but apparently i have used 2.8gb but theres no files.
ive been looking around and ive been seeing bits about sd write function being removed after kitkat but i cant seem to find anything about my sd card being wiped or why i cant delete files. Please could someone help me understand whats what or point me in the direction of a thread that explains all this.
thanks in advance
bones10187 said:
Hi guys im having a bit of drama with my sd card and my samsung galaxy tab a 10.1 running android 7.0 unrooted
I first noticed this yesterday as utorrent kept throwing me an error during my download, when i selected the sd card as the download location i noticed it said app data then once i changed the location to internal app data things worked fine.
I tried to delete the failed download but a little error message came up unable to delete so i formated my sd card and it asked for me to select a file to allow write function, i moved my downloads over to the sd card then continued with another download. utorrent has again failed halfway through then upon looking it has actually wiped my sd card completely nothing shows up but apparently i have used 2.8gb but theres no files.
ive been looking around and ive been seeing bits about sd write function being removed after kitkat but i cant seem to find anything about my sd card being wiped or why i cant delete files. Please could someone help me understand whats what or point me in the direction of a thread that explains all this.
thanks in advance
Click to expand...
Click to collapse
E.g. SanDisk forces some of their usb pen drives into a permanent read-only state when the pen drive detects that it is damaged. Once this happens, this cannot be undone. It is a mechanism to try to save the data. Perhaps your sd card is damaged and something similiar occured? It sounds like a broken/damaged sd card. If you don't need the data on the sd card, you may try to format the sd card with your pc and then again format it with your mobile device. If this fails, it is likely that the sd card is damaged.
Paul2017 said:
E.g. SanDisk forces some of their usb pen drives into a permanent read-only state when the pen drive detects that it is damaged. Once this happens, this cannot be undone. It is a mechanism to try to save the data. Perhaps your sd card is damaged and something similiar occured? It sounds like a broken/damaged sd card. If you don't need the data on the sd card, you may try to format the sd card with your pc and then again format it with your mobile device. If this fails, it is likely that the sd card is damaged.
Click to expand...
Click to collapse
Thanks for the reply but tbh ive been really busy getting bits sorted for my holiday i forgot to update my post, turns out its the sd reader in the tablet at fault which is a bit annoying as its the 1st time ive used it in the 8 months ive owned the tablet. Its the 2nd fault to develop with the tablet 1st fault was unresponsive touch screen tight out the box that was repaired now i need to wait until i return from my holiday to have the reader fixed, luckily an OTG and sd reader works like a charm.

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