Develop Bugs

Strange SD Card problem

I had a strange problem happen to my SD Card on my SG3. I have a Patriot 16GB class 10 card that I used on my EVO 4G for a almost 2 year without a problem. After when I got my new phone I clean all folders that I no longer needed except my pictures and some applications. Put the card in my SG3 and everything was OK. I was able to copy files take a pictures and everything seems to work the way it should. Last week I was on a trip and during the process to taking a picture I got a message that my card was removed and basically disappear. I reboot the phone and nothing happen. then a little bit later I saw another message that card was found and everything show up again. Then I check do I have all the pictures and most of them were there except on a last one was (when card disappear) basically it was look like that picture was taken a half way. So I delete that bad picture and continue. A day later it happen again but this time when card show up again instead a normal card I have that message in notification bar with a little sd card that it says Blank SD card. then if I pull down and click on it phone is asking me to format the card. I try to mount the card but got the same message Blank card or unsupported file system. Ok so I didn't have at that time my adapter to plug in to my laptop and wait until I got home to try to repair the card.
Here is what I got now and I'm not sure is phone damage the card or card slot on the phone is not good.
I use minitool under windows and GParted as well under linux. Both of them recognize my card as 60 GB Unallocated space (it is a 16GB). when I try to recreate or format both of them said successful but card is not show up. I have to plug it back and then it goes again as a 60GB unallocated space.
Does any one know how to format a 16GB card as FAT32? I mean the settings I have to use to put to get back again this card as a 16GB not as 60GB.
Sorry for the long explanation and thanks for you help in advance.
P.S. I' not rooted and on LG8 update.

Bro,did to trid any other sd?
sent from my htc

ventzi said:
I had a strange problem happen to my SD Card on my SG3. I have a Patriot 16GB class 10 card that I used on my EVO 4G for a almost 2 year without a problem. After when I got my new phone I clean all folders that I no longer needed except my pictures and some applications. Put the card in my SG3 and everything was OK. I was able to copy files take a pictures and everything seems to work the way it should. Last week I was on a trip and during the process to taking a picture I got a message that my card was removed and basically disappear. I reboot the phone and nothing happen. then a little bit later I saw another message that card was found and everything show up again. Then I check do I have all the pictures and most of them were there except on a last one was (when card disappear) basically it was look like that picture was taken a half way. So I delete that bad picture and continue. A day later it happen again but this time when card show up again instead a normal card I have that message in notification bar with a little sd card that it says Blank SD card. then if I pull down and click on it phone is asking me to format the card. I try to mount the card but got the same message Blank card or unsupported file system. Ok so I didn't have at that time my adapter to plug in to my laptop and wait until I got home to try to repair the card.
Here is what I got now and I'm not sure is phone damage the card or card slot on the phone is not good.
I use minitool under windows and GParted as well under linux. Both of them recognize my card as 60 GB Unallocated space (it is a 16GB). when I try to recreate or format both of them said successful but card is not show up. I have to plug it back and then it goes again as a 60GB unallocated space.
Does any one know how to format a 16GB card as FAT32? I mean the settings I have to use to put to get back again this card as a 16GB not as 60GB.
Sorry for the long explanation and thanks for you help in advance.
P.S. I' not rooted and on LG8 update.
Click to expand...
Click to collapse
Windows will format it just fine under Disk Management. The fact that its reading it as a 60GB... I'd bet on the card as bad. I have hours and hours trying to save thumb drives and SD cards. 97% of them had no hope. Sometimes the card reader can act up... but not likely, and the phone's kicking it out too. Try to stick with Kingston or SanDisk even if you have to pay a little more. Yes, Cards do go bad like that.

a454nova said:
Windows will format it just fine under Disk Management. The fact that its reading it as a 60GB... I'd bet on the card as bad. I have hours and hours trying to save thumb drives and SD cards. 97% of them had no hope. Sometimes the card reader can act up... but not likely, and the phone's kicking it out too. Try to stick with Kingston or SanDisk even if you have to pay a little more. Yes, Cards do go bad like that.
Click to expand...
Click to collapse
Thanks for the reply. It is look like that this card is going bad. It kind a surprise me since I didn't have any problems under my old phone. I will play a little bit more to try to repair it but....... looks like will be a lost a time.
Do you think that because it was a class 10 card causing a issue? I saw a couple treads but most of the SD card that people use are class 4.

ventzi said:
Thanks for the reply. It is look like that this card is going bad. It kind a surprise me since I didn't have any problems under my old phone. I will play a little bit more to try to repair it but....... looks like will be a lost a time.
Do you think that because it was a class 10 card causing a issue? I saw a couple treads but most of the SD card that people use are class 4.
Click to expand...
Click to collapse
I don't think the class would be an issue. How old is your card?

The Root said:
I don't think the class would be an issue. How old is your card?
Click to expand...
Click to collapse
Probably 1.5 year. I got my EVO 4G back in sept. 2010 and bought the card a couple months later when rooted my phone.

Yeah, like root said, the class wasn't the issue. The different phone might have pissed it off but you really never know. I never liked Patriot myself, but then some people like them. Gotta back stuff up or have it auto upload somewhere.

a454nova said:
Yeah, like root said, the class wasn't the issue. The different phone might have pissed it off but you really never know. I never liked Patriot myself, but then some people like them. Gotta back stuff up or have it auto upload somewhere.
Click to expand...
Click to collapse
I do have all the pictures auto uploaded to my DropBox account and all apps I backup on my PC. I just wondering if the card slot of the phone is bad. I have a new 4GB class 4 card. I will put in to the phone, format and try to see if it happen again.

last week suddenly received a message that the card was blank. did everything i could not to format it. finally gave in and tried formatting the sd card but couldn't. had to buy a new one. sounds like yours is going bad as well.

also try this thread as it has helped many
http://forum.xda-developers.com/showthread.php?t=1355528

a454nova said:
Yeah, like root said, the class wasn't the issue. The different phone might have pissed it off but you really never know. I never liked Patriot myself, but then some people like them. Gotta back stuff up or have it auto upload somewhere.
Click to expand...
Click to collapse
When I first got my SGS3 I used my old card from my OG Droid. I got an OTA update and my phone quit working (I got the "Unfortunately the process com.android.phone has stopped working" message). I took the phone back and they asked if I had ever had an SD card in it. I said "Yes, my old card from my Droid." I was told that this is a "known issue" with the SGS3 and that any SD card I used should be formatted in the phone itself. I'm not sure if this is the issue here, but it might be.

ventzi said:
I do have all the pictures auto uploaded to my DropBox account and all apps I backup on my PC. I just wondering if the card slot of the phone is bad. I have a new 4GB class 4 card. I will put in to the phone, format and try to see if it happen again.
Click to expand...
Click to collapse
I bet it will be fine. Only one why to know.
Sent from my SPH-L710 using Tapatalk 2

a454nova said:
I bet it will be fine. Only one why to know.
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
I hope so. Thanks for you help.
P.S. I did play with couple more tools but unfortunately no luck at all. It is time to look for a new one.

[Q] microSD card died

I had a SanDisk Mobile Ultra MicroSDHC Class 6 32GB (formatted FAT32) in my Galaxy S3 with no issues for about a month. Then one day I was at work, unlocked my phone and got a "SD card has been unexpectedly removed" notification. After that the microSD card wasn't recognized in the phone, my laptop, nor my desktop PC.
Has anybody else had this issue?

AlienMindbender said:
I had a SanDisk Mobile Ultra MicroSDHC Class 6 32GB (formatted FAT32) in my Galaxy S3 with no issues for about a month. Then one day I was at work, unlocked my phone and got a "SD card has been unexpectedly removed" notification. After that the microSD card wasn't recognized in the phone, my laptop, nor my desktop PC.
Has anybody else had this issue?
Click to expand...
Click to collapse
question is, where did u buy the sd card it might of been a fake, their are multiple sdcards which look good and real but overall are fake due to the ability to operate in heat, so it might of overheated and crashed(died) its a big issue with fake sd cards out there, they usually go out or burnt due to not being able to take the heat of the phone. On normal operate the sd card should be able to take 40 to 45C which make it 90-100 Ferenheit, if its a real SD card it should be able to take more then this and reach upto 65+C or around there.
easy ways to spot a fake is if ure saving files on ure phone and it says u got a class 6 or class 10 sdxc card and its operating less then it should, it crashes on u when trying to open a file or it resets itself and tries to scan again for it. in many cases it will get too hot and burnt out, or it just stops operating out of the blue.

Practitioner said:
question is, where did u buy the sd card it might of been a fake, their are multiple sdcards which look good and real but overall are fake due to the ability to operate in heat, so it might of overheated and crashed(died) its a big issue with fake sd cards out there, they usually go out or burnt due to not being able to take the heat of the phone. On normal operate the sd card should be able to take 40 to 45C which make it 90-100 Ferenheit, if its a real SD card it should be able to take more then this and reach upto 65+C or around there.
easy ways to spot a fake is if ure saving files on ure phone and it says u got a class 6 or class 10 sdxc card and its operating less then it should, it crashes on u when trying to open a file or it resets itself and tries to scan again for it. in many cases it will get too hot and burnt out, or it just stops operating out of the blue.
Click to expand...
Click to collapse
I bought the card from Adorama (a photography focused site) in April. SanDisk is letting me RMA the card (just got that approved last night). I just want to make sure it's not my phone causing the problem. Up until the "unexpectedly removed" error, I never had any issues with it crashing or having to scan for itself again (unlike the class 4 I was trying to test the card slot with right now).

AlienMindbender said:
I bought the card from Adorama (a photography focused site) in April. SanDisk is letting me RMA the card (just got that approved last night). I just want to make sure it's not my phone causing the problem. Up until the "unexpectedly removed" error, I never had any issues with it crashing or having to scan for itself again (unlike the class 4 I was trying to test the card slot with right now).
Click to expand...
Click to collapse
If that's the case have u tried varies card readers or card ports to see if it could be the unit itself..... However if it does out that way, I believe scndizk does back this up with a lifetime warranty if ure sd card does stop operating and then should be able to replace it.

sd card question...
I have a 32gb Samsung class 10 sd card in my S3 - running codenamedroid. receintly, when i connect to my desktop i shows an sd card but it doesnt display whats on the card or whats in my internal for that matter... my sd card is formatted to fat32. when i pull my sd card out and plug it directly into the comp everything shows up fine. how do i get it to show up when i plug my phone to the computer. i have searched for a while but no answers. does anyone know why this is happening ??? thanks

Root this !! said:
I have a 32gb Samsung class 10 sd card in my S3 - running codenamedroid. receintly, when i connect to my desktop i shows an sd card but it doesnt display whats on the card or whats in my internal for that matter... my sd card is formatted to fat32. when i pull my sd card out and plug it directly into the comp everything shows up fine. how do i get it to show up when i plug my phone to the computer. i have searched for a while but no answers. does anyone know why this is happening ??? thanks
Click to expand...
Click to collapse
Did u do a swap in memory, switched ure ext to internal and internal to external recently?

Practitioner said:
Did u do a swap in memory, switched ure ext to internal and internal to external recently?
Click to expand...
Click to collapse
no... nothing like that. it worked fine with TW roms, but im curious if its a CM10 issue. everything shows up on my phone (photos, music, etc) but nothing shows up when i plug it into the computer..

Root this !! said:
no... nothing like that. it worked fine with TW roms, but im curious if its a CM10 issue. everything shows up on my phone (photos, music, etc) but nothing shows up when i plug it into the computer..
Click to expand...
Click to collapse
go tot he android development or pm the dev for the CM10 mod and see if he could answer ure question, havent heard about this happening so he might have th answer.

AlienMindbender said:
I had a SanDisk Mobile Ultra MicroSDHC Class 6 32GB (formatted FAT32) in my Galaxy S3 with no issues for about a month. Then one day I was at work, unlocked my phone and got a "SD card has been unexpectedly removed" notification. After that the microSD card wasn't recognized in the phone, my laptop, nor my desktop PC.
Has anybody else had this issue?
Click to expand...
Click to collapse
FWIW, had the same exact problem. Only thing, I was running a STOCK ROOTED device. The SD just died. Tried on my laptop, DOA. Wound up sending back and got another one, so far so good(knock on wood).

I 32 gb patriot card from frys brandnew for 20$.....this badboy started telling me "vard removed unexpected error...even tried reformatting....truly believe its a gs3 thing....but i had no probs with my 8gb card....really pissed about this.....any ??????
Sent from my SPH-L710 using xda app-developers app
---------- Post added at 10:58 PM ---------- Previous post was at 10:55 PM ----------
And im also on stock ...non rooted
Sent from my SPH-L710 using xda app-developers app

soufdallas said:
I 32 gb patriot card from frys brandnew for 20$.....this badboy started telling me "vard removed unexpected error...even tried reformatting....truly believe its a gs3 thing....but i had no probs with my 8gb card....really pissed about this.....any ??????
Sent from my SPH-L710 using xda app-developers app
---------- Post added at 10:58 PM ---------- Previous post was at 10:55 PM ----------
And im also on stock ...non rooted
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Even so the gs3 should be able to read ure 32gb flawlessly since it's supportive to sdhc, now it does also supports sdxc which is expected from higher performance sd cards to not be able to read or install correctly on the gs3 unless u format to extfat or fat32. Chances are u might have a bad sd card. By default their storage capacity is 32, after that, that's where u need to take does drastic measures. Try formatting it on ure computer, if it doesn't format then ure gs3 should read it, if it doesn't format u already know.

Had the same issue with my S3.
Turned out that the SD card was dying, this caused it to be unmounted by itself and then mounted again (sometimes showing notification “sd card removed unexpectedly”), hence triggering the media scanning process.
I created an application to monitor how many times the SD card was removed, and turned out to be unmounted every ~3 mins!!!
I then bought a new Transcend 32GB Class 10 card, and until now, this never happens, no reports from the application whatsoever, and no media process eating my battery.
I just published this app in the play store now, this is the link:
https://play.google.com/store/apps/details?id=com.sdcardmonitor

32 GB SanDisk Ultra class 10 will not read

This card used to work regularly for about 4 months then one day my phone said it dismounted and it became defective since that notification. I returned it due to the warranty and got a a brand new card from SanDisk. My computer reads it (and I formatted to FAT32) but, my phone refuses to even see it. And yes I attempted to format within the phone in the settings and it doesn't even say its mounted. Any possible suggestions? I tried everything it seems like. Thanks

well what rom and kernel are you running? that helps.
is it only that card or any card?
have you looked for any dirt or crud in the sd card slot. try blowing into there.
are you sure you have the card clicked in all the way? past the point where it springs back?

Here's another suggestion. Load a new rom @asop or touchwiz and if everything but your phone detects it still then you probably have a defective card reader.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

There is a thread on the forum about this very issue. Android runs a system thresd called media server and it runs every once in a while. When it is running, it will thoroughly thrash your sd card, by reading and writing. You can notice this behavior when you boot or reboot your phone; your phone is sluggish and laggy for the first few minutes-media server is running, reading the entire contents of your internal and external storage AND writing a new databse of what it finds.
This unnecessary thrashing dealt by the media server results in eventual ruination of solid state memory cards.
You can disable the media server by instaling and running an app called rescan media root. You have to root your phone to use it.
Sent from my SAMSUNG-SGH-I747 using xda premium
---------- Post added at 09:11 AM ---------- Previous post was at 08:56 AM ----------
Media scanner, not media server. My bad.
It's too early in the morning here in sunny california.
Sent from my SAMSUNG-SGH-I747 using xda premium

TRusselo said:
well what rom and kernel are you running? that helps.
is it only that card or any card?
have you looked for any dirt or crud in the sd card slot. try blowing into there.
are you sure you have the card clicked in all the way? past the point where it springs back?
Click to expand...
Click to collapse
It randomly began to work one day when I inserted it again. But occasionally when I turn on my screen, it says "Preparing sd card". It is a brand new Sandisk card so it doesnt appear to have anything wrong with it physically. It works for now but I'm afraid it may not function soon. I believe Sandisk class 10 sd cards have had trouble in some Galaxy S3 devices similar to mine. Any other ideas?

aval1392 said:
It randomly began to work one day when I inserted it again. But occasionally when I turn on my screen, it says "Preparing sd card". It is a brand new Sandisk card so it doesnt appear to have anything wrong with it physically. It works for now but I'm afraid it may not function soon. I believe Sandisk class 10 sd cards have had trouble in some Galaxy S3 devices similar to mine. Any other ideas?
Click to expand...
Click to collapse
The same thing happened to my friend, and it turned out the replacement SD Card was also defective. Have you tried Card swaps with another device to verify?

Samsung evo microsd 64gb card problem.

I went to Disneyland today with my family. Camera default saving location to the external Samsung evo microsd. All the pictures I took look like this...anyone know why? Or how to fix the pictures? Thanks in advance.

evilbobvu said:
I went to Disneyland today with my family. Camera default saving location to the external Samsung evo microsd. All the pictures I took look like this...anyone know why? Or how to fix the pictures? Thanks in advance.
Click to expand...
Click to collapse
is it ok on computer?

evilbobvu said:
I went to Disneyland today with my family. Camera default saving location to the external Samsung evo microsd. All the pictures I took look like this...anyone know why? Or how to fix the pictures? Thanks in advance.
Click to expand...
Click to collapse
That's very unfortunate (and really an unforgivable malfunction by Samsung, I think) because there is no way I've seen to regain the pictures. There are a dozen posts like yours on the different carriers individual forums stating exactly the same problem..with no solution. There's many different types of SD cards listed too so it's not the cards themselves, It's the phone doing it. The programs on the internet don't get them back and I believe the actual picture itself is probably corrupted as it's writing to the card. The same thing happened with the note3. There's another post on this forum with a guy who took pics of his SONS WEDDING and it was all lost. I hope I'm wrong, Disneyland is awesome

brittoking said:
That's very unfortunate (and really an unforgivable malfunction by Samsung, I think) because there is no way I've seen to regain the pictures. There are a dozen posts like yours on the different carriers individual forums stating exactly the same problem..with no solution. There's many different types of SD cards listed too so it's not the cards themselves, It's the phone doing it. The programs on the internet don't get them back and I believe the actual picture itself is probably corrupted as it's writing to the card. The same thing happened with the note3. There's another post on this forum with a guy who took pics of his SONS WEDDING and it was all lost. I hope I'm wrong, Disneyland is awesome
Click to expand...
Click to collapse
You are right. The pictures are corrupted. Even I am copying to PC. Its shame on Samsung.

damn, and here I went and bought the Samsung card because samsung phones always corrupt SanDisk... hopefully mine doesn't mess up. damn.
Sent from my Samsung Galaxy Note 4 using Tapatalk.

That sucks, glad I read this post because I saw a black friday deal on a 64gb and 128gb Samsung card but now I'll just stick to my crusty 4 year old SanDisk 16gb card it's still kicking so Hey....

quick fix for now
Just so you know if you tell the camera to write to phone memory it works fine, you have to then use the stock file manager to move them to card for storage.
I have a feeling it's a security knox thing, hope sammy fixes this soon.

rusty.gh said:
Just so you know if you tell the camera to write to phone memory it works fine, you have to then use the stock file manager to move them to card for storage.
I have a feeling it's a security knox thing, hope sammy fixes this soon.
Click to expand...
Click to collapse
No, it does not fix it.
I copied to my laptop, uploaded to the cloud (dropbox and google photos) hoping that the gallery app is corrupted but none work..

I should have used my words better, the files (pictures) you already took are most likely toast.
You just need to set camera to phone memory in the future to get NEW good pictures.

I have problem on my Samsung Evo sdcard 64gb, it is 100% working good on my Huawei P8 Lite but when I transferred it to my Lg G Pro 2, it says corrupted.
Fyi, i gently removed my sdcard then transferred it to my G Pro 2 then after that, it cannot read and says corrupted or unsupported file system, which is not true because G Pro 2 can support 64gb sdcard.
Pls advise how to fix this without reformatting.

[Q] SD Card Issue (Yes, still not solved)

For the longest time, I have been unable to use my 128GB Sandisk MicroSD card properly with my GN4. I have tried SD card fixes, foldermount, and messed with the platform.xml file as well. What I used to do back in the days of ICS/Pre KitKat 4.4.4 was take the SD card and plug it into my computer (via SD card adapter) and transfer the files I needed directly since it takes a while longer if I connected the phone to the computer. I can still transfer files to the microSD card if I plug it in, but they are not able to be read. This is starting to piss me off as I have a lot of music that I would like to store on the card. Anyone have anything else they can suggest?
I used foldermount last week - Some of the music files work properly, while some don't play and I get the message "unable to play this file."
I bought this card brand new and I'm hoping it's not "a bad card"

frazy said:
For the longest time, I have been unable to use my 128GB Sandisk MicroSD card properly with my GN4. I have tried SD card fixes, foldermount, and messed with the platform.xml file as well. What I used to do back in the days of ICS/Pre KitKat 4.4.4 was take the SD card and plug it into my computer (via SD card adapter) and transfer the files I needed directly since it takes a while longer if I connected the phone to the computer. I can still transfer files to the microSD card if I plug it in, but they are not able to be read. This is starting to piss me off as I have a lot of music that I would like to store on the card. Anyone have anything else they can suggest?
I used foldermount last week - Some of the music files work properly, while some don't play and I get the message "unable to play this file."
I bought this card brand new and I'm hoping it's not "a bad card"
Click to expand...
Click to collapse
I also use a 128gb Sandisk Card, the "ultra" I believe. I never had a problem with it, I just came from the Note 3 and put it in the Note 4 with no issues. Is yours the "Ultra" also?

Maybe a bad card. I got 3 fake ones on eBay before I got a real one. I flipped out on the sellers and reported them. Each time I got a bad one I spent hrs copying data over to the 128. I would copy over around 20 gb, and another 20 and so on. When I went to look at the files that I had first put on there they would be gone. There are programs u can download for free. Just Google how to tell if sd card is fake. A fake card is really a 2/4/8/16/32 card changed to look and act like a 128 and once it hits it's limit that u don't know what that is, the earlier data that was put on the card, disappears.
Here is a link for a program I used:
http://forum.xda-developers.com/showthread.php?t=730285
This happened to me back in Oct/Nov when note 4 was launched. I ended up paying $120 on eBay for SanDisk's highest r/w 128 gb card.
The first seller claimed he didn't know they were fake and promised to stop selling them if I retracted my bad feedback as it was the only bad feedback he had ever received. Once I saw they were removed from his selling list I retracted the feedback. The second and third sellers I was not nice to, did not even have to send them back the pos card. My response was something like refund my ****ing money now for selling me this fake ****ing sd card. Ten minutes later both had gave me my money back. Assholes. After I got a good one I had contacted the first seller again and explained how much trouble I had and the scam artists there are on eBay. I feel that he was genuinely sorry and had no idea. He also stopped doing business with who he was getting the fake cards.
This good card has been great, note 4 32 gb internal, 128 external, both full, zero problems.

Plug it into your computer and check if it's formatted correctly (fat32 vs NTFS). That might solve the problem. Don't quote me, but I think it needs fat32.
Sent from my SM-N910P using Tapatalk

pdaddy said:
Plug it into your computer and check if it's formatted correctly (fat32 vs NTFS). That might solve the problem. Don't quote me, but I think it needs fat32.
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Yes it does need to be fat 32.
Also if is fake, u might format it, move data, insert in phone, and it says it's not readable and needs to be formatted.

Yes mine is the ultra version as well (in red letters on the micro sd card)

ryanalan82 said:
Yes it does need to be fat 32.
Also if is fake, u might format it, move data, insert in phone, and it says it's not readable and needs to be formatted.
Click to expand...
Click to collapse
the two options are exFAT and NTFS. I formatted on exFAT and it seemed to be working just fine until today.
So I use my sd card as direct storage for when pictures are taken. I was at dinner today and took pictures of the food we ate. All of a sudden when I go to the Gallery, I see a black and grey image with an exclamation point for the pictures taken at dinner with the exception of one. I am wondering whether Samsung/Google is releasing updates that put the phone back into the main issue of not being able to R/W to the external sd card? I don't know what else could be the reason. I also tested the card to make sure it wasn't fake. SO DAMN FRUSTRATING!

Shouldn't have to format it. Already exfat when it comes. If it's real, contact sandisk with pictures of the card and it's serial number and a copy of the receipt. They will replace it.