What file systems are available for SDcard

[chrisaaaaa]

After the 3rd sdcard crash I wonder if I can work around the problems by using a different, journalling, file system.

So what file systems do the phones support, nativley or perhaps with limited fiddling?

It would have to support read/write with journalling switched on, and possible to read on Win7 (with fiddling if neccessary).

Chris

[chrisaaaaa]

I tried ext3 and the phone said no.

No point trying NTFS or ext4 then.

How about F2FS, or perhaps Sony have their own format.

My theory is that the sdcard slots are poor, if the card is bing written while the phone is being moved around there is a momentary break which corrupts the card.

Any journalled or lof file system will do - Sony any ideas?

[Rickard]

Sorry to hear that your SD-card has crashed 

For SD-cards, the phone supports FAT12/16, FAT32 and exFAT.

But moving the phone around should not break the connection to the SD card when it's snapped in. When this has happended, was the phone dropped or similar so that there was an impact?

[chrisaaaaa]

Last time it happened the phone was in my pocket on the way home, working fine, playing thru car hifi. When I went to use it indoors all the apps showed the missing icon.

I thought it was a typical crash so restarted the phone, but it did not help, I took the card out put it into a windows pc, it said the card was unformatted.

It lives in rubber bumper case too.

I imagine the problem is a momentary loose connection combined with a write on a simple file system, any log or journalled file system should not suffer so badly.

Your repairs policy does not help, I could send the phone back over and over at a cost of £20 a time, you are never going to detect the issue.

If I root the phone how badly is the warranty affected, as root I could add a robust file system, what would I loose, just low-light photography? Would the battery life be reduced?

Chris

[Duderino]

Is exfat cool to run for the larger files? 4k fikes can be large so exfat is a great choice.

[Rickard]

@chrisaaaaa

I would start by running a test on the SD card using a PC and a card reader to first make sure it's not something with the card. You can use a test software like h2testw or similar to do a write+verify test.

You can also try installing an app that monitors the SD card to see if it looses the connection like this one.

Regarding root and warranty, that's hard for me to say as warranty and repairs are handled at a local level by your Local support and it will probably also depend on what repairs that needs to be done. But any modification of the phones hardware/firmware may void the warranty.

I don't have any list of all items that needs the DRM-keys but it's not only the camera that's affected. They are also used for other things like HDCP and MirrorLink.

@Duderino

While exFAT can store files larger than 4GB in size, i believe the camera will still limit the size to 4GB as the camera can't know what file system that is used on the SD card.