Database Users

microSD disappearance.. SOLVED!

People have been replacing their microSD cards not knowing that the problem is actually in the files and folders..
Ok here it is!
When i scroll through the hTC Sense tabs to music or photos, the applications try to load the thumbs from the Phone/microSD, that's when it suddenly freezes then the microSD vanishes..
I inserted the microSD into my PC and browsed the drive in "Thumbnail view" and guess what happened, it froze.. I figured since the idea was the same in hTC Sense when it tries to load any thumbs..
So i went to the microSD drive again and chose "detailed view" then went into each folder and changed to "thumbnail view" until i found two folders that kept freezing; "Program Files" and "My Music"..
In Program files the only folder that couldn't be deleted definitely had files that were behind the issue.. There was a music album too that froze, i deleted that too...
I backed up my files and formatted the microSD, i had to, because the folders behind the microSD disappearance cannot be deleted even with an "Unlocker"..
So far i'm playing around with my Leo and nothing is happening..
So by viewing the folders on the PC using Thumbnail view, you'll be able to identify the file or folder behind this annoying issue..

I had the same issue
I have (had) Sandisk microSD 16GB card. It was last week that it happened to me. Only backup of good files and re-formatting the card helped.
Today, I was copying 700MB file and suddenly it told me - cant write on a disk. I disconnected cable from the PC, rebooted Leo and SD card was no more present.
I put it into a card reader, tried to format it, but nothing is working. SD card is probably faulty.
So be aware, that that problem might be a first sign before your SD will break.

I think the fault is from some files somewhere in the microSD.. After going through the method i mentioned earlier, up until now my card is fine..

dosari666 said:
I think the fault is from some files somewhere in the microSD.. After going through the method i mentioned earlier, up until now my card is fine..
Click to expand...
Click to collapse
yup right, but be aware. I dont think that normal SD card should perform like that. I am using stock 2GB SD now, and it is ok!

stgyro said:
yup right, but be aware. I dont think that normal SD card should perform like that. I am using stock 2GB SD now, and it is ok!
Click to expand...
Click to collapse
My 16GB microSD is Sandisk and its 100% compatible with this device.. The Leo is doing something when loading the files creating some system files i suppose..

dosari666 said:
My 16GB microSD is Sandisk and its 100% compatible with this device.. The Leo is doing something when loading the files creating some system files i suppose..
Click to expand...
Click to collapse
guess what? windows could not load sandisk microSD 16GB and I was already preparing to return it to e-shop, but I tried live cd of ubuntu 9.10.
It can read the card, it formatted it and it is working again! :-D

stgyro said:
guess what? windows could not load sandisk microSD 16GB and I was already preparing to return it to e-shop, but I tried live cd of ubuntu 9.10.
It can read the card, it formatted it and it is working again! :-D
Click to expand...
Click to collapse
That's great, so you didn't have to replace it?
But strange, i've always been using the 16GB with my HD and now HD2.. The issue just occurred a week ago..
A day has passed and everything seems fine..
I hope it stays that way..

ok
I got exactly the same problem with my 16G Sandiskin and HD
and found that the problem was a damaged file in my SD
connect your SD to your computer throw card reader, using total commander or whatever, begin coping all SD files and directory to your hard disk, until get a message can't copy "file name", this will be the damage file, unmount the SD and mount it again and delete this file and your SD will be ok
ps: may be you have more than one damage file, try the this method until you can copy all SD files to your hard drive

When you have a write or read problem with a particular file, it usually points to more than just a corrupt file. In my experience with 4 16GB Sandisk microSD, it is the beginning of a failing card. The safest bet is to copy out the good files, reformat in your HD2 and copy the files back. But if it happens too often, it may be time to invest in a new card as your data is of primary concern.
The strange thing is that this usually occurs with the bigger cards, 8GB and 16GB. I never had this issue in the past with smaller cards.
I back up my card weekly or when I have updated large number of files just to be sure I have a valid set in my PC in case the card fails.

kensong said:
When you have a write or read problem with a particular file, it usually points to more than just a corrupt file. In my experience with 4 16GB Sandisk microSD, it is the beginning of a failing card. The safest bet is to copy out the good files, reformat in your HD2 and copy the files back. But if it happens too often, it may be time to invest in a new card as your data is of primary concern.
The strange thing is that this usually occurs with the bigger cards, 8GB and 16GB. I never had this issue in the past with smaller cards.
I back up my card weekly or when I have updated large number of files just to be sure I have a valid set in my PC in case the card fails.
Click to expand...
Click to collapse
I know what you are talking about. Low format may help. I had the same issue with 2GB SD card 3 years ago (had to recover SD card to save few photos) and also on my DLSR with 4GB CF Card (linux helped to read the card). I don´t think it can be damaged so quickly as normal PC HDD, but when it happens often (damaged files on card), it may be a sign of something wrong with the card.

Unfortunately it happened again.. After a month of having everything under control i got the same problem.. The great news is I'm using windows 7 on my PC and when i plug my microSD card via usb reader, i get a choice of scanning and fixing the removable disk...
Now i'm happy without those annoying corrupted files..

Losing External SD Card Folders

Hiya,
Was racing at the weekend and took several pics\vids while there, suddenly my video clip folder dissappeared and then the DCIM folder vanished also. Thought immed that the SD card was faulty but when I used a file recovery prog got everything back including the folder structure and the prog listed the data as deleted rather than corrupted.
Then used H2TestW to run multiple tests on the SD card which it has so far passed 10 times so a little confused as to if it's a card problem or a phone problem.
Has anyone else seen this happen before?
The card is a Kingston Class 10 16GB and the phone is running stock UK firmware.
Cheers,
Mike

SD Card Problem
Hi!
I have something similar to your problem. For unknown reason my Samsung i9000 Galaxy S has lost contact with my SD Card. The phone does not see the card. As a result, the camera does not work, since there is not enough memory. I have formatted the SD Card on my computer, but still there is no result. I am trying to read around about this problem, but quite helpless at the moment.

Help with MicroSD

Ok...I've bought a new Lexar 16GB MicroSD Class 4 to replace my old Sandisk 8GB Class 4 card.
I copied everything across. However, I get random phone freezing.
The freezing only occurs when I have the new MicroSD in. I've replace it already with a new one, but it seems my phone doesn't like it.
I've tried:
1) Checking drive for errors
2) Reformatting drive using Windows
3) Reformatting drive using Android
4) Factory Reset phone
But its still the same.
[EDIT] It seems that Android is corrupting something on my card, because when I run chkdsk it comes up with the "Errors are Fixed" dialog....it says it puts the :"files in a 'FOUND' folder". However when I look into the MicroSD, there is no 'FOUND' folder. Also, copying files to and from the MicroSD card in Windows works fine.
HELP! and thanks.

You Saw this thread? http://forum.xda-developers.com/showthread.php?t=1025501

mkmck said:
You Saw this thread? http://forum.xda-developers.com/showthread.php?t=1025501
Click to expand...
Click to collapse
Ok..I'll give it a go. Using SD Formatter with Full (Overwrite) option. I hope this works.
[EDIT] SD Formatter has not solved problem. Also, reformatting in 8k, 16k, 32k, 64k not working.
Annoyed.

I think Milestone2 have a SD card compatibility issue .many kind of sd card can't run well on the device .but sandisk is good on it .

I have the same problem, can´t fix... I think is a bug ...

SD Card Issue: Phone Hangs with SD Card

Facing very weird issue... I took out my SD Card to transfer something, when I put it back in, the phone hangs..!! I thought that there must be something in the SD Card data so I formatted it and even then, the problem persists. I even changed the SD Card but the problem still exists..!!! Without the SD Card, the phone is running without any issues... !! Help..!!
ROM: Wanam Lite v8
Card: Transcend 32 GB Class 10 - FAT32
Sandisk 32 GB Class 10 - FAT32

[Q] i9500 S4 unsupporting Class 10 SD card

Hi,
I've recently purchased a SanDisk Class 10 32GB SD card for my SAMSUNG S4 i9500.
I have transferred some images and music from old SD card to new one and everything worked perfectly, just until one point when the device just unmounts the SD card and all files seems unaccessible, mounting it again and reinserting the card fixed the problem but it keeps unmounting suddenly, then at one point everything was moved to LOST.DIR. I have formatted the Card to FAT32 on PC then format it again using phone, but still same problem occurring, only now it shows that SD space is being used, still when browsed through on phone, it shows no data at all.
Does i9500 NOT support Class 10, or something wrong with SD card, any body had such experience?

K3n2 said:
Hi,
I've recently purchased a SanDisk Class 10 32GB SD card for my SAMSUNG S4 i9500.
I have transferred some images and music from old SD card to new one and everything worked perfectly, just until one point when the device just unmounts the SD card and all files seems unaccessible, mounting it again and reinserting the card fixed the problem but it keeps unmounting suddenly, then at one point everything was moved to LOST.DIR. I have formatted the Card to FAT32 on PC then format it again using phone, but still same problem occurring, only now it shows that SD space is being used, still when browsed through on phone, it shows no data at all.
Does i9500 NOT support Class 10, or something wrong with SD card, any body had such experience?
Click to expand...
Click to collapse
It does support Class 10 cards, I've been using a 64GB Lexar one for about 5 months now with no issues whatsoever.

K3n2 said:
Hi,
I've recently purchased a SanDisk Class 10 32GB SD card for my SAMSUNG S4 i9500.
I have transferred some images and music from old SD card to new one and everything worked perfectly, just until one point when the device just unmounts the SD card and all files seems unaccessible, mounting it again and reinserting the card fixed the problem but it keeps unmounting suddenly, then at one point everything was moved to LOST.DIR. I have formatted the Card to FAT32 on PC then format it again using phone, but still same problem occurring, only now it shows that SD space is being used, still when browsed through on phone, it shows no data at all.
Does i9500 NOT support Class 10, or something wrong with SD card, any body had such experience?
Click to expand...
Click to collapse
I am also using Scandisk 32GB Class 10 sdcard but don't have any problems. Why not you try factory resetting the phone or upgrading the firmware. Best of luck...:good: