Lost files on SD card in XDA2

[xdaer]

I just did a backup to SD and files are missing (Pix Mp3 etc...) now the only folders are the recycle bin (advanced explorer) Backup file 20Mb and "ignore mydocs" which is 0kb. The properties still says the space is taken up with stuff on the card but i can't get at the files. Any ideas or do i have to format the card.

I know SD card erasures has been thread before but I didn't know if the XDA2 problem was new. I'm using windows default theme, no-name 256Mb SD card.

Thanks

[ronin]

This is the first that hear about lost SD files on the XDAII. This has been bothering me a lot on XDA1 and WM2003 and there is no OS documentation on the Phone Edition of WM2003.

The interesting thing is that you do have some folders remaining in the card. Is the backup functional(Were you able to restore from it?) Most erasures completely erase the card and all the directories therein.

I did some research on the Radio Interface layer and the specific DLL's interaction with the OS. As a continuation to the following:

http://xda-developers.com/RIL/

I feel the problem lies in how the Radio Stack conflicts programatically with how SD cards are recognized by the device. So I wrote a few apps to trace how files are written to the card and when there is a new card ID generated by the device.

The erasures coincide with the new SD card ID in the OS and port/ layer. However, since the RIL and stack are built in and not documented I have not been able to isolate and resolve the problem.

How long have you had this card?
what apps do you have installed in the XDA II?
Has the erasure occurred before?

[stryker]

I've had this happen once and only once after uninstalling some software. I have a "viking 512MB" sd card.

I ejected it then put it back in then pointed the file explorer to it and all was back to normal.

[sectorlord]

:twisted:
It happened to me once (i had xda 2 now for a month)...

I lost data which has no backups.. since I had this 512MB panasonic on all my Ipaq 3970,5450,550,2210,1910, and 4150 and it never fails ...

Now this xda 2 erased it all ... been 2 weeks now and still holding... but I am backung up my SD now once for while..

- my new problem, if my phone portion hangs, and softreset, I got stuck on O2 blue screen and need to hard reset.. last night it happened again and the pda portion still working , so backed up and hard reset...

I still has the 13Q protocol version, I heard someone fix this problem upgarding to 14 ?

[Qman]

I just did a backup to SD and files are missing (Pix Mp3 etc...) now the only folders are the recycle bin (advanced explorer) Backup file 20Mb and "ignore mydocs" which is 0kb. The properties still says the space is taken up with stuff on the card but i can't get at the files. Any ideas or do i have to format the card.

I know SD card erasures has been thread before but I didn't know if the XDA2 problem was new. I'm using windows default theme, no-name 256Mb SD card.

Thanks

I suggest if you can place the card in a Laptop or PC and run Scandisk.
There may even be a Pocket PC program that can do the same thing so you might try doing a web search for one.

Flash Format comes to mind:
http://www.pocketgear.com/software_detail.asp?id=851



HTH

[sectorlord]

:x

I tried all in my laptop, even Norton etc... really nothing left !!

I had the PCMCIA adpter for MS/SD/MMC/Smartmedia..

[raheeeb]

Hi all, please be carefull the files are not ERASED they are there but somehow hidden!!! :!: :?: :!: , it happened to me on my Sandisk 256MB and after a week, things went back to normal and i had all my files accessable, i copied them to my PC and now after a month , the files disapeared again on my SD Card but if you check the CARD you can see that some files are taking space which mean again they are there but not accessable.

[sectorlord]

:oops:

I dont think I can last a week to wait until my sd files come up again ...

DO you have any quick fix on this issue like rewriting the FAT thru norton or other SW ?

I had checked with my laptop last time and my files really disappeared..

[xdaer]

HI

the files are there on the card and they are hidden. They appear to be broken up into 12k chunks... is there any way to recover them?? I'm using a no name 256k sd card and the problem occured after doing a full back up. Incidentally the recovery file is faulty and will no work. I'm not too bothered but i lost loads of photos....

thanks