[Q] Why is my new 32gb microSD read-only? - Sprint Samsung Galaxy S III

I just purchased a MicroCenter brand 32gb microSD for my S3. I went ahead and did a format using the phone. Afterwards, I removed the card and plugged it directly to my PC and started copying my data from my old 16gb to the new one. After an hour or so it was done so I put it back in my phone. The card mounted fine and all my data was accessible. Didn't think there was a problem until I tried to move my camera media to the new card. My phone tells me that I can't move any files to the card. I then tried to delete something from the card and it wouldn't let me do that either. I even tried changing permissions to random files and guess what, it won't let me. So basically my card is acting like it's read- only even though permissions show otherwise. I thought I did everything by the book so what could have caused this? I don't want to have to back everything off the card and redo the whole process again as I just don't have any more time (hours) to waste on this. Please help!

reformat as fat32.

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cnstarz said:
reformat as fat32.
Click to expand...
Click to collapse
It is formatted as fat32. I tried exFat also and the phone just kept saying it was safe to remove and never initialized it. I reformatted it back to fat32 and the problem still exists. I put my Samsung 16gb back in and it works perfectly. I did notice that it lets me create new folders on it in ES File Explorer but creating files just doesn't work. Changing permissions doesn't work. I formatted it twice with both Windows and the phone itself and still no difference. Using my USB adapter on the PC it works just like any other flash drive with no problems. This is irritating as hell. I just can't think of any reason for this except maybe the custom kernel I'm using is causing some weirdness. Guess I'll try a different brand and see what happens. Anyone know who manufactures MicroCenter branded microsd cards?
Sprint Galaxy S3
Touchwiz Rooted Stock ROM LJ7
[KERNEL][SPRINT][AOSP/TOUCHWIZ-JELLYBEAN][10/31/2012] KT747-s LJ7 - KTweaker
And yes, Ive tried wiping cache, delvik and fixing permissions.

Check if it have a lock to make it read-only. Big ones have it, or maybe it's defective.
Sent from my O=O

Did you use a full sized SD adapter to plug it into your PC. The adapters have lock switches and I have had issues where when inserting or removing the adapter from the PC the lock switch gets flipped and the card becomes read only. You might want to put it back in the adapter, flip the switch back and forth, make sure it is not on locked, insert it into your PC and let it mount, make sure you can read and write, then unmount and remove. Make sure the switch didn't get moved to the lock position while you were inserting and removing the adapter.
I hope that helps.

dewey1973 said:
Did you use a full sized SD adapter to plug it into your PC. The adapters have lock switches and I have had issues where when inserting or removing the adapter from the PC the lock switch gets flipped and the card becomes read only. You might want to put it back in the adapter, flip the switch back and forth, make sure it is not on locked, insert it into your PC and let it mount, make sure you can read and write, then unmount and remove. Make sure the switch didn't get moved to the lock position while you were inserting and removing the adapter.
I hope that helps.
Click to expand...
Click to collapse
Thanks for the reply but it's definitely not that. I just tried it in my old Galaxy S Epic 4G. Don't know why I didn't try that before now but it works flawlessly. Interesting that the original Galaxy has no issue with it. It's running CM9. I even formatted it with the Epic and then tried it again in the S3. Still no go. I forgot to mention that it's a class 10 and it seems there are an awful lot of people having issues with class 10 32gb cards in various devices. I discovered that after Googling my problem. I'm returning it tomorrow but I might try returning my kernel to stock and see if that makes a difference.
...still no go. Conclusion: MicroCenter 32gb class 10 microsd cards are incompatible with the Galaxy S3.

dewey1973 said:
Did you use a full sized SD adapter to plug it into your PC. The adapters have lock switches and I have had issues where when inserting or removing the adapter from the PC the lock switch gets flipped and the card becomes read only. You might want to put it back in the adapter, flip the switch back and forth, make sure it is not on locked, insert it into your PC and let it mount, make sure you can read and write, then unmount and remove. Make sure the switch didn't get moved to the lock position while you were inserting and removing the adapter.
I hope that helps.
Click to expand...
Click to collapse
Thanks. I had a different phone and sdcard and was about to toss it out, then I moved the switch. lol.

Related

SD Card keeps becoming unavailable

Has anyone else come across the problem where the micro SD card seems to just stop being available to the phone? I'd say maybe once or so a day, anything that reads data from the SD card, such as the music app, stop working. If I try and play a song, it just hangs and does nothing.
I tried a search and somebody in the G1 forum had a similar problem but it didn't really contain any conclusions on what it is likely to be.
Anyone else had this issue? What is it most likely to be, the phone or card?
Thanks.
yeah I've had this occasionally with the camerea and seperately the 3d gallery software I installed.. have no idea why
Yea I've had that a couple of times actually. Just have to turn it off and on again and its ok, but its annoying.
Yeah, rebooting does sort it out, but it's starting to happen every day now, sometimes a couple times a day. If it's just a dodgy card or whatever I'd rather get T-Mobile to sort it sooner rather than later.
hmm a dodgy card.. included with the phone, that sucks
Backup your SD Card data and then try formatting it to see if that helps.
Cheers, will give that a go tomorrow. I might ring up T-Mob tomorrow anyway just to make them aware of the issue I'm having.
If I format it, will I be able to copy all the contents back on to it?
aljwatson69 said:
Cheers, will give that a go tomorrow. I might ring up T-Mob tomorrow anyway just to make them aware of the issue I'm having.
If I format it, will I be able to copy all the contents back on to it?
Click to expand...
Click to collapse
Yes, back it up to hard drive on your PC, then after you have formatted your SD card, copy back the contents from the hard drive to your Removable disk (SD card).
I've had this a few times Took the card out, reinserted and restarted the phone. Seemed to fix it, but it is annoying.
Sorry I can't remember when and how I know this.
But backup the card on your PC
Then format it in/with the phone and this should solve the problem I believe
I had killed one of my 16 GB card in Nexus one.
I found a problem that if i use Win 7 or Vista i must remove the device by using safely remove the USB device. Since now am doing this way i never had any problem.
Word of warning you could simply kill a card if you just remove a device.
My first thought was it has something to do with the USB connection. If you safely remove device in Windows - the phone 'prepares' the SD card.
I was having the same issue. I connected to the PC and mounted the SD card. I performed a disk check on the card and it found some errors which it then repaired. I then unmounted the card
I haven't had any issues since.
I formatted my card yesterday and haven't had any problems so far. thanks for the advice.
I ended up replacing the card. All of the previous advice didn't work for me or if it did it didn't last. I reckon there was a bit of a dodgy batch supplied by SanDisk.
~Since replacing I've had absolutely no problems whatsoever, it used to happen at least every 48hours. Very annoying when you try to take a photo and it tells you there's nowhere to save it.
I've been having problems too when taking pictures, which is really annoying!
And i'm not sure whether this is a related problem or not, but it could be...when trying to receive a file over bluetooth it sometimes says it doesn't have permission to receive the file or something along those lines, could this be the SD card playing up?
I'm on T Mobile, would they replace the SD card?
Not sure if it is the same reason, but I had all kinds of problems including the one you've described.
I'm on Orange, they told me that my SD card wasn't covered by Orange Care (the orange phone insurance). I said I didn't have Orange Care anyway and that surely it comes under the 12 months manufacturers warranty. They said pop it into the shop which is a bit of a drive and would cost me more than the value of a new card to get there.
At the time I wasn't certain it was the card as I didn't have a 2nd to try it with. Given my problem was very intermittent I decided the bother of going into the shop - it wasn't worth it for a £5 card. Now that I've bought a new one that works perfectly, I'm going to head into the shop with the old one next time I'm passing. The problem is I don't really need it replacing now! You could always lie and tell them you've tried your friends card at home for a couple of days and it worked perfectly?! No harm in trying.
hassan said:
I had killed one of my 16 GB card in Nexus one.
I found a problem that if i use Win 7 or Vista i must remove the device by using safely remove the USB device. Since now am doing this way i never had any problem.
Word of warning you could simply kill a card if you just remove a device.
Click to expand...
Click to collapse
Mhh - maybe I've had luck, but I use my over 1 year old 8gb cl6 card from magic/mt3g and never use that win function while unpluging anything (not while data transfer). So maybe depends on quality or manufacturer?
Sent from my HTC Desire
2-3 weeks since I've formatted my card and now I'm carefully unpluging my phone only when it's charging it hasn't happened ever since
Zilch said:
I've had this a few times Took the card out, reinserted and restarted the phone. Seemed to fix it, but it is annoying.
Click to expand...
Click to collapse
I hate to say it, but it will happen again. Have card reader or other phone prepared, just in case your sd card stops working totally

External sdcard woes

Before owning the Note 2, I had the S3. The problem with the scared happens on both phones.
When I first got the Note, I removed the sdcard from the S3 and put it straight into the Note.
No media showed up. Formatted in phone, transferred media, all working as it should.
Today, add a video to card, doesn't show. Add a photo, doesn't show.
Format card, transfer media. Nothing shows up.
Am reluctant to buy another card as I tried three Cards in the S3, and the problem was present with all of them.
PS using root explorer I can find all the media, and play them in their respective apps.
Sent from my GT-N8010 using xda app-developers app
saldawop said:
Before owning the Note 2, I had the S3. The problem with the scared happens on both phones.
When I first got the Note, I removed the sdcard from the S3 and put it straight into the Note.
No media showed up. Formatted in phone, transferred media, all working as it should.
Today, add a video to card, doesn't show. Add a photo, doesn't show.
Format card, transfer media. Nothing shows up.
Am reluctant to buy another card as I tried three Cards in the S3, and the problem was present with all of them.
PS using root explorer I can find all the media, and play them in their respective apps.
Sent from my GT-N8010 using xda app-developers app
Click to expand...
Click to collapse
solution might be here:
http://forum.xda-developers.com/showthread.php?t=1410262
Thanks, for some reason that works for my videos, but not with photos and music!!!!
And that is more of a workaround than a solution. Ideally I would like for it to work as it should. Impossible for me to go back to stock as I will always need root to vieww my media(ok, I will probably always be rooted, but I want the option)
Edit: tried again and my music and photos are now showing (using Directory Bind)
Sent from my GT-N8010 using xda app-developers app
Ive had issues like this on my EVO. Try installing a "media scan" app from the market. It rescans all media content on the phone and then if you want you can remove the app after its done. I had 2 years worth of photos on my 16GB SD class 10 and no pictures or video thumbnails / pictures at all would show. Ran the app and fixed all the issues.
I did try a couple of those apps yesterday.I dont know if either one worked.I mean I know nothing showed up, but it was as though they never actually run.
Same issue
:crying:
I tried formatting several times and copied the data back, nothing helped. Also copying files from my comp to the sd card and internal storage in the phone is very slow. I bought the device yesterday, its stock unrooted.
I don't believe media (pictures/video) show up until mediascanner detects them and sticks in some internal database.
So just copying files onto your external card and popping it in isn't going to work.
media scanner is normally triggered during a reboot, and some apps can trigger it. (generally via 'rescan media' buttons).
Also make sure you don't have a .nomedia file there, as that causes media scanner to skip the directory.
( media scanner can really grind on directories with tons of files )
- Frank
ChodTheWacko said:
I don't believe media (pictures/video) show up until mediascanner detects them and sticks in some internal database.
So just copying files onto your external card and popping it in isn't going to work.
media scanner is normally triggered during a reboot, and some apps can trigger it. (generally via 'rescan media' buttons).
Also make sure you don't have a .nomedia file there, as that causes media scanner to skip the directory.
( media scanner can really grind on directories with tons of files )
- Frank
Click to expand...
Click to collapse
I tried a different memory card from my old Sensation and it read the files perfectly... can any of you help me with the copying speed.. it took me 35 mins to copy 1.20GB... just to be sure i i tried to copy the same date using the same data cable and the same usb port, onto my wildfire, and it copied it pretty fast. Any idea ?
HTCfreak! said:
I tried a different memory card from my old Sensation and it read the files perfectly... can any of you help me with the copying speed.. it took me 35 mins to copy 1.20GB... just to be sure i i tried to copy the same date using the same data cable and the same usb port, onto my wildfire, and it copied it pretty fast. Any idea ?
Click to expand...
Click to collapse
It sounds like the Sensation card just has slower transfer rates. While your wildfire has faster transfer rates but you are experience issues on the phone side.
Just to confirm, you have formatted both cards the same way and one works and the other doesn't? If possible try to format the card from the phone. Have you tried a sandisk card?
Daniel
dachness said:
It sounds like the Sensation card just has slower transfer rates. While your wildfire has faster transfer rates but you are experience issues on the phone side.
Just to confirm, you have formatted both cards the same way and one works and the other doesn't? If possible try to format the card from the phone. Have you tried a sandisk card?
Daniel
Click to expand...
Click to collapse
Both the cards are Sandisk 8gb cards, both formatted on the Note 2. I transferred data to card A when its in the wildfire, i formatted the card and put it in the note and formatted it again, and tried to copy the same data to card A, it takes more than 3times the amount of time... data transfer has been slow to the card while its in the note
I have read somewhere that there is a " .nomedia " folder somewhere. Delete that and see what happens.
nm8 said:
I have read somewhere that there is a " .nomedia " folder somewhere. Delete that and see what happens.
Click to expand...
Click to collapse
Also on top of that, when you formatted the SDCard did you format in the PC or in your phone through recovery? You will want to format through recovery.
I would recommend upgrading to an ext partition and then formatting again (if you don't need the ext). I have found that even formatting the SDCard on some roms (because the way they work) it doesn't wipe everything and upgrading the to ext actually changes the file system of the SDCard rather than a quick format. Then only copy your media back to the card. Dont copy everything like .android, data, and stuff like that. Just what you want to keep.
HTCfreak! said:
Both the cards are Sandisk 8gb cards, both formatted on the Note 2. I transferred data to card A when its in the wildfire, i formatted the card and put it in the note and formatted it again, and tried to copy the same data to card A, it takes more than 3times the amount of time... data transfer has been slow to the card while its in the note
Click to expand...
Click to collapse
Is there any chance you have a counterfeit Sandisk card? Did you buy it from an authorized dealer? If buying from Amazon make sure you only purchase directly from amazon, LLC and not a third party vendor.
For reference which sandisk card do you have what class is it rated at?
Daniel
No the card is legit, i got it in the box when i bought the HTC Sensation and worked fine on the sensation. It has good copying speed if i put it in another device like my wildfire even now. I checked copying speeds yesterday using the same card in my wildfire and my new note, but it takes forever to copy data to the card while its in the Note. I have not rooted my Note yet. Its factory stock as of now.
---------- Post added at 10:26 AM ---------- Previous post was at 10:18 AM ----------
nm8 said:
I have read somewhere that there is a " .nomedia " folder somewhere. Delete that and see what happens.
Click to expand...
Click to collapse
Tried that, and it worked. thanks.... But still having data transfer speed issues... i copied data to the internal memory and even that is slow... this problem is not limited to only my sd card, but also the internal memory
If your internal memory is slow I would consider that cause for concern. Perhaps try running benchmarks and comparing your results to those in the benchmark thread. It may be worth returning it for another phone if you can't find a solution soon.
HTCfreak! said:
No the card is legit, i got it in the box when i bought the HTC Sensation and worked fine on the sensation. It has good copying speed if i put it in another device like my wildfire even now. I checked copying speeds yesterday using the same card in my wildfire and my new note, but it takes forever to copy data to the card while its in the Note. I have not rooted my Note yet. Its factory stock as of now.
---------- Post added at 10:26 AM ---------- Previous post was at 10:18 AM ----------
Tried that, and it worked. thanks.... But still having data transfer speed issues... i copied data to the internal memory and even that is slow... this problem is not limited to only my sd card, but also the internal memory
Click to expand...
Click to collapse
you might have to reinstall your rom
Isn't the speed difference just to do with the way the Note 2 connects to the pc? I.E MTP as opposed to mass storage? I seem to recall my G.F's original Note is dog slow at data transfer in MTP but much faster in USB mode....shame the Note 2 can't do this, it's one of my reservations about buying it.
Ouzo said:
Isn't the speed difference just to do with the way the Note 2 connects to the pc? I.E MTP as opposed to mass storage? I seem to recall my G.F's original Note is dog slow at data transfer in MTP but much faster in USB mode....shame the Note 2 can't do this, it's one of my reservations about buying it.
Click to expand...
Click to collapse
Now it makes sense to me, thanks :good:
Is there any way to connect in USB mode rather than MTP??
Can I ask if anyone else suffers from the same problem as raised in the OP?
I would imagine its not "the norm" and yet I have had the same issue on both the S3 and Note 2.
Whilst, it is now working, I am having to use Directory Bind, for it to do so.
I put in a new 64GB card on Saturday, recognised straight away in Settings/Storage, formatted fine in the phone giving me 59+GB of free space.
Put media on it...nothing shows.
I cant ever see my phone not being rooted so it can be worked around,but it just seems strange that I have had this on both phones and yet nobody else seems to suffer from it.
HTCfreak! said:
Now it makes sense to me, thanks :good:
Is there any way to connect in USB mode rather than MTP??
Click to expand...
Click to collapse
For whatever reason I don't think Samsung enabled USB mass storage mode on either the S3 or the Note 2. It's the one thing that's holding me back from buying one at the moment because I use iTunes Agent to sync with iTunes, and that requires the device to be in mass storage mode when connected to the pc (or you can take the sd card out and put it in a reader, but I don't like to take the back off too many times as most phones end up getting really creaky). It's a real shame because I'm just itching to get one.
Have a look in the GS3 forum - I think there's a thread where someone has created an app that enables you to toggle USB mass storage mode, but I think you might have to be rooted and have a custom kernel. Don't quote me, that's from memory
---------- Post added at 04:54 PM ---------- Previous post was at 04:50 PM ----------
saldawop said:
Can I ask if anyone else suffers from the same problem as raised in the OP?
I would imagine its not "the norm" and yet I have had the same issue on both the S3 and Note 2.
Whilst, it is now working, I am having to use Directory Bind, for it to do so.
I put in a new 64GB card on Saturday, recognised straight away in Settings/Storage, formatted fine in the phone giving me 59+GB of free space.
Put media on it...nothing shows.
I cant ever see my phone not being rooted so it can be worked around,but it just seems strange that I have had this on both phones and yet nobody else seems to suffer from it.
Click to expand...
Click to collapse
There are a couple of threads about this I think now. I browsed some last night. Sorry, I'm only on my phone at the moment so it's a bit awkward to try and find a link for you (what with having a Sensation with only a 4.3" screen They'll be on the first page or two I think.
My girlfriend's original Note had a similar problem with photos and media after connecting an external hard drive. Going into settings/apps and clearing data on the media storage app followed by a reboot sorted the problem for her.

[Q] Damaged Micro SD card

Hey guys, I had a question regarding my micro SD card. When I had my phone, it would randomly eject (Alpharom CM10, I believe). About a week ago, my phone broke completely (screen completely black out: the home button & others on the bottom wouldn't turn on), so I just kept the micro SD card to use it for something else later. When I stuck the Micro SD into the adapter & into the CPU, it read the items, but I can't seem to mess with them UNLESS I lock the SD adapter. I can copy them if the adapter is locked. If I unlock it & try to open a file, it freezes the whole CPU for a few seconds while it tries to read it.
I've made sure the Adapter has the Lock switch up while I try to format it. I've attempted to check if it is Read-Only through Computer>SD>Right-click>Properties, but no option that says Read-Only is available. I've downloaded a couple of programs, including the official SDFormatter program & they all say it is still Write-protected. I can't think of any other way to format it. I've even tried the scotch tape over the Lock switch. Maybe you guys can help me out? I wanted to use the SD for a tablet I expect on getting in the near future.
Enfiladedrivein said:
Hey guys, I had a question regarding my micro SD card. When I had my phone, it would randomly eject (Alpharom CM10, I believe). About a week ago, my phone broke completely (screen completely black out: the home button & others on the bottom wouldn't turn on), so I just kept the micro SD card to use it for something else later. When I stuck the Micro SD into the adapter & into the CPU, it read the items, but I can't seem to mess with them UNLESS I lock the SD adapter. I can copy them if the adapter is locked. If I unlock it & try to open a file, it freezes the whole CPU for a few seconds while it tries to read it.
I've made sure the Adapter has the Lock switch up while I try to format it. I've attempted to check if it is Read-Only through Computer>SD>Right-click>Properties, but no option that says Read-Only is available. I've downloaded a couple of programs, including the official SDFormatter program & they all say it is still Write-protected. I can't think of any other way to format it. I've even tried the scotch tape over the Lock switch. Maybe you guys can help me out? I wanted to use the SD for a tablet I expect on getting in the near future.
Click to expand...
Click to collapse
1. You don't seem to talking about our device - there's no "Alpharom CM10" for Epic 4G SPH-D700
2. I have no advice for you apart from buying a new card. Since you can at least copy out data, it'd be best to try a switch. Or why not try luck with another card reader that DIRECTLY reads MicroSD instead of from an adapter...
Sent from HTC Incredible S @ CM10.1
AndyYan said:
1. You don't seem to talking about our device - there's no "Alpharom CM10" for Epic 4G SPH-D700
2. I have no advice for you apart from buying a new card. Since you can at least copy out data, it'd be best to try a switch. Or why not try luck with another card reader that DIRECTLY reads MicroSD instead of from an adapter...
Sent from HTC Incredible S @ CM10.1
Click to expand...
Click to collapse
My bad. I just checked. The ROM is called Avatar ROM.
And yeah, I was afraid of that. Well, who knows what even caused it. The computer won't even allow the "Check for Errors" option. I will most definitely try another card reader when I have the chance.
Check the sticky in General regarding recovering a damaged sd card.
Friendly Neighborhood Moderator
kennyglass123 said:
Check the sticky in General regarding recovering a damaged sd card.
Friendly Neighborhood Moderator
Click to expand...
Click to collapse
I've gone through that sticky (plus others, on here and on other forums) countless times before making the thread. It turns out you can't use the "chkdsk" command on Windows 7. I've also tried formatting from Computer>Right-Click>Manage. The only thing left to do is to try another card reader or buy a new one. Thanks guys.

[SOLVED][Q] MicroSD card not showing up...Disappears on some ROMs

As the title says my microSD card is not showing up on some ROM's. It is a 64gb sandisk card. I have tried searching for an answer in this forum and on google but have not been able to determine the problem with my phones storage. It works on my computer when hooked to the data cable in the phone. It also works when hooked up with a sd adapter through USB. However, I cannot get consistent use of it on my phone. Some roms it works and some roms I always get a notification that it is safe to remove my SD card. When I try to mount it in the storage settings it attempts to mount but immediately says it is safe to remove it... Also the card seems to always show up in recovery. I made sure the checkbox for mounting the external card was checked in recovery.
Seeing how it works consistently on the computer I want to rule out that the card is not functioning properly but who knows?? I was hoping to see if anyone else ran into a similar problem.
I have been trying to flash a couple ROMs to find one that has call recording with my GS3. I have narrowed them down to S3rx, z999, or Dandroid. They seem to be the only ones that have call recording, working bluetooth, wifi, and usb tether, wifi calling. One other thing I wanted was Init.d so I could switch my internal storage with my extenal to increase my internal to 64gb and make the external 16gb. I have not tried to do the switch yet so I know that is not causing my microSD to disappear from the system.
Also, if anyone knows of a good working way to switch the internal with the external storage?? I know there are at least two methods for doing it.
OR if there is a working way to make the GS3 allow apps to be stored on the external card??
Let the games begin! (God, I love this forum!) :angel: I am praying for an answer....:fingers-crossed:
I'm guessing that its formatted as exFAT, correct?
Only TW roms can use this format. It won't work in aosp/cm roms. Youd have to reformat as Fat32.
Sent from my SGH-T999 using xda premium
I have formatted it on my computer which I thought formatted it as FAT32. My computer just gives the option to format...it does not give me the option of formatting it as a certain type...
Am I wrong that it formats it as FAT32 ??
Oh and how about what I should do with either exchanging internal and external memory or is there a program that will allow apps to be mounted on the external? I saw one or two posts on google that claimed that one or two programs would allow a person to mount apps on the external but thought it may be difficult....I thought the switcharoo method looked easier on the long run...???
Thanks for your response Doc!
I wouldn't trust that it'd automatically format fat32. If you right click the card and select format it should open a small window with choices for quick format and a drop-down menu to choose the format you wish to use.
If you check the properties it should tell you what it currently is though.
Can't answer your other questions as I just don't know about it. Sorry.
Sent from my SGH-T999 using xda premium
DocHoliday77 said:
I'm guessing that its formatted as exFAT, correct?
Only TW roms can use this format. It won't work in aosp/cm roms. Youd have to reformat as Fat32.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Okay...I did figure out that my card was formatted to exFAT !!
You were absolutely correct in your assumption. Windows 7 automatically formated it to exFAT when I reformatted it a week or so ago.
SO to all peeps out there make sure you format your card to the proper format!! Download a program off of the internet to do the work for you...
I found this one that worked just peachy >> http://www.ridgecrop.demon.co.uk/guiformat.exe
ExFat can be used on TW based roms. So if you use touchwiz, its better to use exFat on 32gb or larger sdcards.
I like using the sdformatter tool from sdcard.org. just another option.
Sent from my SGH-T999 using xda premium
Possible Reason
ASharpEdge said:
As the title says my microSD card is not showing up on some ROM's. It is a 64gb sandisk card. I have tried searching for an answer in this forum and on google but have not been able to determine the problem with my phones storage. It works on my computer when hooked to the data cable in the phone. It also works when hooked up with a sd adapter through USB. However, I cannot get consistent use of it on my phone. Some roms it works and some roms I always get a notification that it is safe to remove my SD card. When I try to mount it in the storage settings it attempts to mount but immediately says it is safe to remove it... Also the card seems to always show up in recovery. I made sure the checkbox for mounting the external card was checked in recovery.
Seeing how it works consistently on the computer I want to rule out that the card is not functioning properly but who knows?? I was hoping to see if anyone else ran into a similar problem.
I have been trying to flash a couple ROMs to find one that has call recording with my GS3. I have narrowed them down to S3rx, z999, or Dandroid. They seem to be the only ones that have call recording, working bluetooth, wifi, and usb tether, wifi calling. One other thing I wanted was Init.d so I could switch my internal storage with my extenal to increase my internal to 64gb and make the external 16gb. I have not tried to do the switch yet so I know that is not causing my microSD to disappear from the system.
Also, if anyone knows of a good working way to switch the internal with the external storage?? I know there are at least two methods for doing it.
OR if there is a working way to make the GS3 allow apps to be stored on the external card??
Let the games begin! (God, I love this forum!) :angel: I am praying for an answer....:fingers-crossed:
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Click to collapse
So I know you found a fix to your issue but if you do notice that your SD card begins to disappear again it might be the SD card itself.
I've read somewhere (great reliability sorry I don't have links) that on the GS3 there has been some issue with SanDisk specifically. I had two sandisk 32gb fail on me for no apparent reason and was wondering why they were doing this. I've already switched out to Kingston and I've not had any problems since. I'm not saying that this is the sure issue as my friend had a GS3 and used SanDisk and saw no issue but this is just my experience.
Best of luck to you and cheers.
I always just figured it was sandisk. That doesn't just happen on gs3's. Imo they just don't have near the quality of other manufacturers like samsung or Kingston.
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SD issues

Hey guys, I've been baffled by this all day, if you could help me, that'd be nice.
So, I updated to the latest nightly the other day for CM11, (20140120) and when it booted, I couldn't get the SD card to mount.
I've now tried various ROMs, stock, every CM for my phone available, and no matter what, the SD won't mount.
I've tested multiple SD cards, thinking it was just a dead SD, but to no avail. What is weird is that when I plug the SD in to my computer (Via a USB adapter, and an actual card adapter as well on a second try.) it shows up completely normally, with all the files on it and everything. Tried reformatting it in Windows, Linux, and Mac as well.
Do you guys think that my SD slot has just crapped out? Because I can't afford a new phone whatsoever, and I love my baby Hercules.
Any suggestions would be lovely, thanks for your time!
Daltonyx said:
Hey guys, I've been baffled by this all day, if you could help me, that'd be nice.
So, I updated to the latest nightly the other day for CM11, (20140120) and when it booted, I couldn't get the SD card to mount.
I've now tried various ROMs, stock, every CM for my phone available, and no matter what, the SD won't mount.
I've tested multiple SD cards, thinking it was just a dead SD, but to no avail. What is weird is that when I plug the SD in to my computer (Via a USB adapter, and an actual card adapter as well on a second try.) it shows up completely normally, with all the files on it and everything. Tried reformatting it in Windows, Linux, and Mac as well.
Do you guys think that my SD slot has just crapped out? Because I can't afford a new phone whatsoever, and I love my baby Hercules.
Any suggestions would be lovely, thanks for your time!
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Click to collapse
Well since you went back to Touchwiz, and you tried multiple SD cards, I'm going to guess the actual reader went bad. My recommendation would be to go to multiple repair centers and see what they all say. Don't just go to one because they might rip you off and the more opinions the better
Sent from my Nexus 5 using XDA Premium 4 mobile app
soccerfan6789 said:
Well since you went back to Touchwiz, and you tried multiple SD cards, I'm going to guess the actual reader went bad. My recommendation would be to go to multiple repair centers and see what they all say. Don't just go to one because they might rip you off and the more opinions the better
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Well, everybody says that nothing is wrong with my SD slot, and I've noticed that when I turn my phone's screen on, it tries to read my SD, and it mounts successfully. What's weird is that the second I unlock my phone, it unmounts and asks me to format my SD. I tried formatting it in my phone, and on the computer (Unix, Windows, Linux) as well again. So, I can't really figure out the issue. It isn't just limited to one android version, it's on all. And even on Touchwiz it unmounts when unlocked. I'm quite baffled. ._.
Sorry to necro my own thread, but I need this fixed. lol
corrupted files maybe? Maybe its a software issue. Try going back to stock and maybe try again
Actually, this will sound really stupid, but I was installing Koushik's airplaymirror.apk, and I was doing it through ADB. I used adb root, then adb remount, and before I used adb push, I noticed my SD card mounted right after that command. So yeah, simple solution, but I'm still not sure what the problem was?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

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