External SD Card showing LOST.DIR ? - Galaxy Note GT-N7000 Q&A, Help & Troubleshooting

Hi,
I installed a new external SD card in my phone. Copied files from my Note on to it. After a day I see the folder gone and an new empty folder LOST.DIR in its place.
Is my SD card faulty? I used it for over 6 months in the SG2 without any problems.
Please help!

Read this.

PoisonWolf said:
Read this.
Click to expand...
Click to collapse
Thanks but I did read that thread before posting here and that thread made no sense to me.
My folder having Video files is gone and there is an empty LOST.DIR in its place.
I also do not use a Mac.

LOST.DIR is comparable to the recyclbe bin in windows.
if you do not permanently delete files they end up in LOST.DIR for a specific acmount of time. (that's the way it happens on my computer)
i don't think your Video Folder moved on its own to the LOST.DIR. Anyway, check in LOST.DIR - it should be there. Just move it outta there.

Hi I had this problem with a faulty SD card.. I'll never skimp on an SD card again. Its definitely branded ftw here
Sent from my GT-N7000 using xda premium

two_handed said:
LOST.DIR is comparable to the recyclbe bin in windows.
if you do not permanently delete files they end up in LOST.DIR for a specific acmount of time. (that's the way it happens on my computer)
i don't think your Video Folder moved on its own to the LOST.DIR. Anyway, check in LOST.DIR - it should be there. Just move it outta there.
Click to expand...
Click to collapse
Hi,
Yesterday I had a folder called "VIDEO" with movie files in it on my SD Card. Today, there is just this folder called LOST.DIR which is empty !! There is no trace of the Video folder of the movie files anywhere.
My SD card is blank except for the empty folder LOST.DIR

nuclearmonkeyuk said:
Hi I had this problem with a faulty SD card.. I'll never skimp on an SD card again. Its definitely branded ftw here
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Mine is a branded Transcend 4GB card.

Maybe it is bricked then. Do you have the possibility to cross check with another hardware, e.g laptop, card reader...
you can also try to format it, create a tempfile and check what happens.
what's the output of:
du /mnt/sdcard/external_sd ?

After some tests, I found this. If you have your phone connected to a PC (windows) to transfer files to the phone's externalSD directory, then use the "remove hardware option" without noticing there are TWO hardwares listed, then turn off USB from your phone, then unplug, you end up in this bad situation of a directory that's empty except for the lost.DIR (which is not accessible).
If you are careful to remove BOTH listed drives prior to turning off USB and unplugging the files should remain on your phone and be accessible. Your mileage may vary.
PS. I'm pretty certain the lost.dir is as dead as can be and can be safely deleted.

AspiringDeveloper said:
...
PS. I'm pretty certain the lost.dir is as dead as can be and can be safely deleted.
Click to expand...
Click to collapse
It may be dead, yeah, but why remove it when it'll be created by the system again anyway and it doesn't harm?

delete them all.
is garbage.

two_handed said:
It may be dead, yeah, but why remove it when it'll be created by the system again anyway and it doesn't harm?
Click to expand...
Click to collapse
Some people have reported them as pushing 3 gigs. I don't have any problem getting rig of 3 gigs of wasted space. If it's 0 bytes? Leave it.

As i've said before - it is comparable to the trash bin in windows. You don't empty it, it takes space on your Disk. Empty it, its zero byte.
Sent from my GT-N7000 using XDA App

AspiringDeveloper said:
After some tests, I found this. If you have your phone connected to a PC (windows) to transfer files to the phone's externalSD directory, then use the "remove hardware option" without noticing there are TWO hardwares listed, then turn off USB from your phone, then unplug, you end up in this bad situation of a directory that's empty except for the lost.DIR (which is not accessible).
If you are careful to remove BOTH listed drives prior to turning off USB and unplugging the files should remain on your phone and be accessible. Your mileage may vary.
PS. I'm pretty certain the lost.dir is as dead as can be and can be safely deleted.
Click to expand...
Click to collapse
Hi, thanks for your efforts but I did not connect my phone to my PC for transfering the files. I cut / paste them from my phone usb drive to the external sd card with the ES File Explorer utility. The files were there for a day, then suddenly they disappeared.

JulyDerek said:
I cut / paste them from my phone usb drive to the external sd card with the ES File Explorer utility.
Click to expand...
Click to collapse
Gotcha. I have also encountered this problem. I suspect the problem is similar.
Because you say the files lingered temporarily, diagnosing a fix or work around won't reveal instantaneously if it was successful. My thought is if it is first copied to another dir then flush the clipboard by copying something else (no need to paste it) then copy the file and paste it into the externalSD, then the origin of those won't be contingent on proper disconnection of the drive. I've made two test files: one as described above and one copied direct from USB. I renamed each to clearly identify which is which. Both files were intact a few minutes after unplugging the drive. I rebooted to see if there was any change. Both files remain. I'm not sure how i killed the files using the jump drive before. Perhaps I didn't wait for the phone to complete the process of disconnecting it. **** happens.
If you do find a consistent way that even definitely following proper procedures leads to lost.dir I would like to hear about it.
[NOTE] I will not test (and do not advise) intentionally disconnecting the drive prematurely as a test of that particular possibility. If lost.dir is not produced employing proper procedures all the way, it is of no use to damage your phone or your jump drive simply to investigate if that was the real cause.
"If it's not broken, DON'T FIX IT!"
edit: Next day both files remain.

Related

Strange "system" files won't delete

One day a few weeks ago all the files seemed to have disappeared off my micro SD card. I had begun to replace them when some (not all) reappeared. Some even re-appeared in duplicate. Others not at all. At the same time two files were added to my card, both 1.2 GB large, both named with strange characters, and both marked as system files. I have tried everyway I can think of to delete them and have searched this forum as well as the Internet but can't find any answer. Can someone please help? Thanks!
Susan
Just a couple of questions. Are you using file explorer on your phone? Are you using file explorer on your desktop with a USB reader? Are you using Windows/Mac/or Linux? Are you using Activesync and the USB cable to read it as a " mobile device" in "my computer"?
Are the files youre attempting to delete marked with "hidden" attributes?
More info is needed to help ya
Cinamon said:
One day a few weeks ago all the files seemed to have disappeared off my micro SD card. I had begun to replace them when some (not all) reappeared. Some even re-appeared in duplicate. Others not at all. At the same time two files were added to my card, both 1.2 GB large, both named with strange characters, and both marked as system files. I have tried everyway I can think of to delete them and have searched this forum as well as the Internet but can't find any answer. Can someone please help? Thanks!
Susan
Click to expand...
Click to collapse
Put it in your computer and run a disk check, I'd say the FAT filesystem is hosed.
When all else fails, format. Preferably to Fat32. The old Fat file system is unstable over 512MB, or so I've noticed.
Hi!
I have a problem too. Does anybody know what app (very good only)to use for duplicate file removal? thanks
you probably have some malwares in your card that came from your pc
best thing to do is to format -i agree with silversonic
try keeping ur card healthy (its ur data)
backup is another good trick to survive when dealing with technology
silversonic1 said:
format. .
Click to expand...
Click to collapse
Hi!
I have a problem. Does anybody know what app (very good only)to use for duplicate file removal? thanks
Duplicate files finder tool
Hey Cleaner007
I use Directory Report to find duplicate files
http://www.file-utilities.com
Great tool, lots of cool features

[Q] Deleted sd folder!

I have a Samsung Captivate and I accidentally deleted the sd (at least that is what i think it was called) folder. How do I get it back? If I just create a new folder that says 'sd' will it still save things onto my internal sd card?
my /sd/ folder is empty at least looking at it from the OI file manager on the phone
I think mine was as well but I want to put music on my phone and i want it to go on the internal sd. I tried seeing if the files would go directly on the sd so i put a few music files in a folder i created but when i checked my task manager the internal memory storage changed, not the internal sd storage.
Sent from my SAMSUNG-SGH-I897 using XDA App
It depends what OS you are running.
2.1 used /sdcard for internal and /sdcard/sd for external
2.2 moved these directories under /mnt but left the old directories empty
beaufosheau said:
I have a Samsung Captivate and I accidentally deleted the sd (at least that is what i think it was called) folder. How do I get it back? If I just create a new folder that says 'sd' will it still save things onto my internal sd card?
Click to expand...
Click to collapse
Does anybody know what to do if the sd folder is deleted?
I noticed I had an 'sd' folder and an 'external_sd' folder. The sd folder was blank, so I deleted it after I viewed it on my pc - there was nothing in it. It didn't seem to be needed. But now I can't view certain files on my phone only. I can view them on my laptop via USB connection using Windows Explorer.
To attempt to find this folder on my phone, that I CAN see on my laptop using Windows Explorer, I created a txt file in that folder (that I can't find on my phone), naming it 'sdmissing.txt'. I searched everywhere on my phone, even from root directory, trying to find this file and couldn't. Yet after connecting to my laptop via USB, I can see it. What can I do??
Thanks in advance for any help!
bshend said:
Does anybody know what to do if the sd folder is deleted?
I noticed I had an 'sd' folder and an 'external_sd' folder. The sd folder was blank, so I deleted it after I viewed it on my pc - there was nothing in it. It didn't seem to be needed. But now I can't view certain files on my phone only. I can view them on my laptop via USB connection using Windows Explorer.
To attempt to find this folder on my phone, that I CAN see on my laptop using Windows Explorer, I created a txt file in that folder (that I can't find on my phone), naming it 'sdmissing.txt'. I searched everywhere on my phone, even from root directory, trying to find this file and couldn't. Yet after connecting to my laptop via USB, I can see it. What can I do??
Thanks in advance for any help!
Click to expand...
Click to collapse
backup important data and apps with tibu or any other apps in the market and perform factory reset with your phone it should bring you back to where you are.
bshend said:
Does anybody know what to do if the sd folder is deleted?...
Click to expand...
Click to collapse
Turn off and on ur phone to see if it works for you or not. I found that sd is a hidden folder and its blank. When I flash custom roms, I do it without going to stock. But, I do delete Android, data, sd and some other folders, that I know will be automatically created after the reboot/flash. When I go to cwm recovery to install rom from zip, I do see the Android folder and sd folder showing up there. Don't panic. Just do normal shutdown and restart. If that doesn't fix, reflash the custom rom if you are using one.
Sent from my SAMSUNG-SGH-I897 using XDA App

Files on ext. SD Card deleted by Media Scanner

Hi folks,
the Android Media Scanner is deleting files stored on my ext. SDCard.
First I thought the card is broken but then I found this:
h_t_t_p:_/_/code.google.com/p/android/issues/detail?id=3692
Is anyone else having this issue and/or got a solution for it?
Thanks!
Edit: I am on CM7 n82 currenty
Probably own fault. Might be cause by mounting ExternalSD wrong way.
See updated thread andr. Dev.
Sent from my Optimus 2X using XDA Premium App
Media files being deleted from SD card
gonzalesdlx said:
Probably own fault. Might be cause by mounting ExternalSD wrong way.
See updated thread andr. Dev.
Sent from my Optimus 2X using XDA Premium App
Click to expand...
Click to collapse
Gonzales,
I updated from Android 2.3.4 to 2.3.6 this weekend, and the problem started. I came across both threads at the Android Developers forum, and found no solution.
You do mention above that it was "probably your own fault... see updated thread". Well, I did read the updated threads, and found no solution.
You hint that it has to do with the way the card is mounted/unmounted. And this weekend I did in fact mount/unmount the card various times, connecting it to the PC.
But what exactly did you do? Did you find a solution?
Thanks,
[SOLVED] Media Scanner Deleting Files from SD Card
OK, I believe I found the solution. Apparently the problem can be caused by the SD card being mounted and/or unmounted properly. In my case, I was connecting/disconnecting to/from the desktop PC, having the SD card as Mass Storage. At one point, Android wasn't detecting it anymore so I removed and inserted it a few times.
I did what I describe on the same thread at Android Developers: http://code.google.com/p/android/issues/detail?id=3692#c117
Here's what I wrote there:
So I did the following, and it seemed to solve.
1. Connected phone via USB to desktop PC, and dismounted card from phone, allowing data transfer to PC (via Mass Storage Device)
2. In Windows, as a test I created various folders with subfolders, with image files in them. On some I placed a .nomedia file in root and sub-folder, other only in root, others I renamed the sub-folder to start with a ".", etc. (NOTICE: I copied existing .nomedia files from other folders, as Windows doesn't allow files/folders starting with "." to be created)
3. In Windows, I ejected the USB drive politely (i.e.: I didn't just pull the cable out)
4. On phone, opened Settings/Applications/All and found Media Storage
5. Deleted data from Media Storage
6. On phone, I disabled the external access (file storage)
7. Waited patiently until SD card was detected and mounted (previously, I tried forcing that to happen by opening applications that would query the SD card)
The phone performed the Media Scan a couple of times, and ALL MEDIA FILES REMAINED THERE, where they would originally have been deleted from.
In all test folders I created from within Windows, no files were deleted. And in folders that originally had media files (which I didn't touch through Windows), the files no longer were deleted.
Anyway, this seems to have fixed it for me.
My system:
Samsung Galaxy Ace, Android 2.3.6, rooted.
An extra hint: if you feel you card access is slow, get an app like SD Booster and increase the cache size. On my device, it was as low as < 100Kb but increasing it to 1024Kb made a huge difference.
And if you don't want the media scanner to run on boot (increase boot speed), use Rescan Media Root.
Both need root access, by the way.
Click to expand...
Click to collapse
And I've had no problems at all ever since, and even mounted/unmounted a couple of times.

Device creating weird files on SD Card

Hello!
For a few days now I've noticed that my device has been creating some weird files on my SD card. I have tried formatting the SD a few times but it still happens. If I do not delete these files more and more keep being created until there are hundreds of them in my SD. They seem to not take up any space at all, but it bothers me having to browse for files in the card. I have attached a screenshot from the root of my SD card with the suspicious files highlighted. If they are completely normal for an android device, I would like to know if there is a way to stop them, hide them or maybe have them appear inside a separate folder so I can keep my card organized.
Also, it may or may not be related, but whenever I'm listening to music (whether it'd be Play Music or another app) sometimes the phone stops playing it, as if I closed the app. I had Clean Master installed and it happened frequently until I figured out it was the source of the problem and uninstalled. It worked fine for a while but it started again. I believe it could be related, since I keep all of my music on the SD card.
Thank you in advance for any assistance provided!
Do you see these files only when phone is plugged to PC via USB or can you see them with ES-Explorer or similar Filemanger on the phone also?
I have a few of these files but they are only present when I check the SDcard on a Windows- PC, in ES or Rootexplorer they aren´t visible.So my opinion is that these files are created temporary for connecting.
Wolfcity said:
Do you see these files only when phone is plugged to PC via USB or can you see them with ES-Explorer or similar Filemanger on the phone also?
I have a few of these files but they are only present when I check the SDcard on a Windows- PC, in ES or Rootexplorer they aren´t visible.So my opinion is that these files are created temporary for connecting.
Click to expand...
Click to collapse
The files also appear with file managing apps on the device as well. As you can see, the files have "reproduced" since I started this thread.
Inquisitor956 said:
The files also appear with file managing apps on the device as well. As you can see, the files have "reproduced" since I started this thread.
Click to expand...
Click to collapse
I also have the same. Just deleted 400 0byte files on my motog 2ndgen sd card (kitkat 4.4.4). I see them with es and when connected to PC.

Files disappear after failed MTP transfer

This is weird and probably not relevant to anyone, just thought I would put it out there.
I backup apps before I update from Play Store, so that I can roll back if there is any problem with a new version. Cleverly, I decided it was time to move the contents (5.54Gb) of the backup folder to my PC so I connected my Z1 (still running KitKat .108, it works flawlessly and I love Xposed) to the computer, accessed the folder on sd card (took a while to read) and selected all files and right clicked on the destination folder to paste. And nothing happened, just nothing. Selected the files again, same result, nothing happened. Went back and selected the folder, tried to paste that, nothing happens. Left it for a minute or two, to see if anything would happen. Nothing. So I disconnected from PC and and rebooted Z1.
And attempted to move the files again, only to find they were all gone. Now the folder was empty, but according to file managers the space is still being used. I have been through the entire sd card, hidden folders and all, can't find the files manually and the space has not been freed up. Tried to use GT Data Recovery app, it finds over 800 files in standard scan mode and over 3000 in full scan mode (there were 1042 files that were lost) but would not recover the files as it is coded to recover to internal memory only (even when recovering from sd card, WTF!) and there is not enough space. Second pass says no files to recover, first pass used 30% of battery.
I have left my Z1 in MTP mode for USB connections, as it has proved to be the least troublesome mode for data transfers (although my experience with every other Android phone has been the exact opposite).
I have no idea why this happened or how to recover the loss.
gandalf_grey91 said:
This is weird and probably not relevant to anyone, just thought I would put it out there.
I backup apps before I update from Play Store, so that I can roll back if there is any problem with a new version. Cleverly, I decided it was time to move the contents (5.54Gb) of the backup folder to my PC so I connected my Z1 (still running KitKat .108, it works flawlessly and I love Xposed) to the computer, accessed the folder on sd card (took a while to read) and selected all files and right clicked on the destination folder to paste. And nothing happened, just nothing. Selected the files again, same result, nothing happened. Went back and selected the folder, tried to paste that, nothing happens. Left it for a minute or two, to see if anything would happen. Nothing. So I disconnected from PC and and rebooted Z1.
And attempted to move the files again, only to find they were all gone. Now the folder was empty, but according to file managers the space is still being used. I have been through the entire sd card, hidden folders and all, can't find the files manually and the space has not been freed up. Tried to use GT Data Recovery app, it finds over 800 files in standard scan mode and over 3000 in full scan mode (there were 1042 files that were lost) but would not recover the files as it is coded to recover to internal memory only (even when recovering from sd card, WTF!) and there is not enough space. Second pass says no files to recover, first pass used 30% of battery.
I have left my Z1 in MTP mode for USB connections, as it has proved to be the least troublesome mode for data transfers (although my experience with every other Android phone has been the exact opposite).
I have no idea why this happened or how to recover the loss.
Click to expand...
Click to collapse
I don't have much to say about recovering the files but I do have something to share.
First of all, were you trying to move (cut and paste) the files to PC?
Based on my own experience I can guarantee you that it will never work.
Every time I tried to move things from SD Card (connected to Z1) to PC nothing happens at all. Instead, if you want to move things from internal memory it works flawlessly. I don't know what's the problem but I do know that you can't move things from SD Card to PC connected to phone.
So you have 2 option to move your things (assuming that they didn't magically disappear).
First one is to copy and paste (instead of cut) and then delete them from the SD Card.
Second one is to remove your SD Card from your phone and connecting it directly to your PC (using adapter or something) and then move the files.
I'd suggest you to connect the SD Card directly to PC and open it and change windows settings to show hidden files and check if you can see them. If you can't, then all I can say is to go to some shop to check it for you.
Regards,
~J2C
Just2Cause said:
First of all, were you trying to move (cut and paste) the files to PC?
Based on my own experience I can guarantee you that it will never work.
Every time I tried to move things from SD Card (connected to Z1) to PC nothing happens at all. Instead, if you want to move things from internal memory it works flawlessly. I don't know what's the problem but I do know that you can't move things from SD Card to PC connected to phone.
So you have 2 option to move your things (assuming that they didn't magically disappear).
First one is to copy and paste (instead of cut) and then delete them from the SD Card.
Second one is to remove your SD Card from your phone and connecting it directly to your PC (using adapter or something) and then move the files.
I'd suggest you to connect the SD Card directly to PC and open it and change windows settings to show hidden files and check if you can see them. If you can't, then all I can say is to go to some shop to check it for you.
Regards,
~J2C
Click to expand...
Click to collapse
Thanks for the reply. You are probably right, for some strange reason I tried to move the files at first, only after that did I try to copy but I fear it was too late. Will have a go at removing the card and seeing what I can do with a PC.
Thanks for the advice.

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