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[PROBLEM] External storage card in T-Mobile S3 (SGH-T999) NOT RECOGNIZED

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#1
MLB1949

MLB1949

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[PROBLEM] External storage card in T-Mobile S3 (SGH-T999) NOT RECOGNIZED

OK. This past Tuesday. I picked up a 16GB T-Mobile Samsung Galaxy S3 (SGH-T999), in Marble White, along with a 32GB storage card.

AWESOME PHONE!

However, I continue to encounter a SERIOUS PROBLEM: Regardless of which appropriate application I use, I absolutely cannot transfer any app or file to the external storage card. It just won't happen. In fact, the phone does not even ackmowledge the existence of an external card.

Even when my S3 is USB-connected to my PC, I am unable to move any file to the phone's storage card. The "card" image appears on my PC's screen, but I get the black "x" symbol when I attempt to move a file onto the card image.

There is no problem moving files to-and-from the PC and the phone's "Internal Storage" area (as is the case with my Nexus i9250) , but no success with the external storage card.

I have repeatedly re-formatted the 32GB card (which has only a "lost directory" folder showing inside it -- and I can only tell this when connected to the PC), but that is the only recognition the S3 makes regarding the card (and conceding that 29.71GB of available space does exist). From within my phone, and regardless of which file reader/explorer app I use .... the external card simply does not appear.

For my purposes, I'm essentially back with my Nexus: No external storage.

Is anyone else encountering this problem?

I'm wondering if it's a flaw particular to the T-Mobile's SGH-T999 or if the international version GT-i9300 has the same issue.

Any comments/suggestions will be greatly appreciated.

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#2
Drulo

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I'm with a similar problem. just rooted mine, and exchanged the stock kernel with a insecure stock kernel. Already heard about partitioning the sd card and other things, but just can't get it. If we simply chane he kernel with one that supports app2sd will it work?

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#3
MLB1949

MLB1949

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APP2SD will not work on the SGS3, nor will any of the other similar "app movers" in the Play Store. Don't waste a download.

The only application that helped me (so that I was able to move large file folders, such as Music and Music Videos) was ASTRO FILE EXPLORER. Play Store has it in both free- and donate-versions; I went with both.

Now, using ASTRO, I can at least see and utilize the external 32GB storage card on my 16GB T-Mobile S III (SGH-T999). I cannot move apps, but I can move folders/files.

Give it a try if you wish; this was the best I could come up with.

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