Re: Pocket File Manager (The only real manager with full access to photos, video and SD Card!)
Brother i have tried all means to format the card, but not getting success over it, one software which i used for formatting that the disk is write protected, so i am guessing that my card is corrupted..
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i guess i can explain it. It happens that sometimes, with very bad luck, if an sd card is undergoing a write operation and somehow that operation is interrupted, and if by very bad luck it happened when a critical write function was being executed, then any storage can get its write sector corrupted. Imagine, you're entering some data to the write sector of a card and power goes off, the write sector wasn't made to the useable form so its destroyed. In your case, very unluckily, when you opened the app, it was doing some write operation and your phone did its usual once in a week crash (wp is super stable, but many people report weekly crashes
it never bothered me), and bang, two bad coincidence and you get a corrupted memory card.
i guess I've explained your problem now... That is the reason windows on pc asks you to 'safely remove' devices before ejecting, so that you font eject it during critical operations. But this is the first time I'm actually seeing a card getting corrupted because of it. But is is possible, and now I'm pretty sure that that is the reason
Hi,
Did you consider formatting your SD card in exFAT instead of FAT32 ?
It solved all my problems for me, and also today someone else confirmed to me it has solved his issue of data corruption aswel.
I found it very weird at first because exFAT doesn't have journaling like NTFS, so data corruption would still occur in exFAT aswel.
BUT I did test it out a couple of weeks ago, and haven't had a single issue since. I still use exFAT, and will keep on using it for sure.
Normally they say exFAT is only "needed" for 32GB and larger cards, but really that is "bull", because all sd cards benefit from the improved file management. I use a 16GB class 10 card with exFAT, and as said it solved a lot of issues on my phone, just like that.
Also thinking you would be better off with a faster card (f.e. class 10 vs. class 2), you'd be wrong, because the FAT32 file system has the same limitations and data maintenance issues regardless of the "class" of your card, so data corruption would occur the same. It is not the card itself or its "speed" causing data corruption, but the file system in use, because that is what manages and maintains the data.
When using FAT32 I had data corruption regularly, large video files either wouldn't copy to the sd card or wouldn't play correctly, had double files (mostly images), etc...
After changing to exFAT all those things went away for me.
That is because although exFAT doesn't have journaling, it DOES manage and maintain data a lot better than FAT32, especially handling of very large files (like high res. movies), and when having lots and lots of small files (like images) data corruption occurs less often.
Couple years ago exFAT was less popular because of lack of support on a lot of devices and for a lot of applications, but that has been overcome by now.
Although I cannot guarantee it will be the solution for you, you could give it a go, because for me it made a world of difference.
When formatting in exFAT, be sure to use the "smallest" file allocation unit size (4096 bytes!).
Take it or leave it, but if you backup your data, you really have nothing to loose except maybe half an hour of your time. :smile:
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