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Old July 9th, 2011, 08:03 AM   #1 (permalink)
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Default USB OTG mounts microSD via USB adapter?

I use the USB OTG cable to mount USB flash drives on the Galaxy S II, no problem. I tried putting a micro-SD card in a USB adapter and mounting that via OTG, but the micro-SD card is never recognized. I get no notice of media scanner running, etc. Yet, this same USB/micro-SD combo works fine in my laptop. Any suggestions how to get it to work with the SGS2?

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Old July 9th, 2011, 10:37 AM   #2 (permalink)
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Note that the USB OTG doesn't support NTFS, so make sure you're not using that format. Also, the USB adapter might want more power than the SGS2 can provide; try another adapter if you have one handy.
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Old July 9th, 2011, 11:35 AM   #3 (permalink)
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Good call. I tried another adapter that looks to be of better quality, and it worked. It took about 1 minute for media scanning to begin, then another 2 minutes or more to complete the scan--that kind of slowness really cuts down on the utility. The other crap adapter works fine on my laptop, but the phone simply never recognizes it.

Mounting a USB thumb drive is recognized immediately, then the scan completes in 1 minute.
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Old July 9th, 2011, 11:55 AM   #4 (permalink)
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I bought a generic adapter from a computer mall here in Hong Kong for cheap, but it doesn't work. Hopefully I can find something better around here.
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Old July 9th, 2011, 11:59 AM   #5 (permalink)
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My bad adapter was very flimsy, but wafer thin. Too bad it only worked on a PC. The adapter that works on both is branded "Ronald M2." It's clearly built better, but it's not wafer thin.
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Old July 10th, 2011, 08:16 PM   #6 (permalink)
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I am interested OTG. Where do you get these adapters?
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Old July 10th, 2011, 10:53 PM   #7 (permalink)
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You can get them online, if you don't want to risk having a dud, just get the official Samsung brand. I am still trying to find one that works (haven't looked very hard).
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Old July 10th, 2011, 11:17 PM   #8 (permalink)
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or you can just buy a male/female usb extension cable from your local computer store, add that with your existing micro usb cable and you have a otg cable does the same thing, just a bit lengthy.
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Old July 11th, 2011, 05:55 AM   #9 (permalink)
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That probably won't work -- for the SGS2 to switch into OTG mode, it needs pins 4 & 5 to be shorted together.
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Old July 11th, 2011, 08:11 AM   #10 (permalink)
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why samsung not providing its acessories....(egtg adaptor) before time...its almost 2 months it got launched in India.
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Old July 11th, 2011, 12:45 PM   #11 (permalink)
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I bought mine on eBay for 3 and it works fine. I haven't tried with a micro SD adapter but it works with flash and spinning hard drives (the latter with an external power supply of course).

Just be careful to buy on with a micro B plug not micro A. The latter is perfectly rectangular and won't fit into our phone.
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Old October 26th, 2012, 03:19 PM   #12 (permalink)
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Default MicroSD to MicroUSB adapter

Quote:
Originally Posted by Whatstreet View Post
I am interested OTG. Where do you get these adapters?
There is a project on Indiegogo with an adapter like that. It doesn't required the OTG cable

MicroSD to MicroUSB Adapter | Indiegogo
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