Reading your post, I'm assuming that you have an RC and your trying to connect your phone to your RC with an OTG cable so you don't have to use WiFi to connect your RC to your phone. If that's the case, did you get the OTG cable along with your Spark or are you using a cable you just had laying around your house? I ask because you need to have a specific end of the cable to connect to your RC, it will be marked "Host" if it's an after market OTG cable. If it doesn't say "Host" on one of the ends, try flipping the cable around and try it that way. Hopefully that will work. I purchased an aftermarket OTG cable off of Amazon for less than $10 and it works with my phone and tablet. Hope this helps.Try as I might I just can't get an OTG cable to work with my spark, watched countless videos and they all seem to get it to work. But I can't!!
Exactly what happened to me when trying to use an OTG cable with my Samsung Note 4. Sometimes it would work, other times I'd get an error notification saying "High-power USB device connected. Can not access to this device. . ." VERY aggravating. . .THEN read a post about the cable being "directional". . like you said. . "HOST" end needing to be plugged into the r/c. . .I've discovered mine works fine when a certain end is plugged into the r/c. . .so I labeled it. . .been fine sinceReading your post, I'm assuming that you have an RC and your trying to connect your phone to your RC with an OTG cable so you don't have to use WiFi to connect your RC to your phone. If that's the case, did you get the OTG cable along with your Spark or are you using a cable you just had laying around your house? I ask because you need to have a specific end of the cable to connect to your RC, it will be marked "Host" if it's an after market OTG cable. If it doesn't say "Host" on one of the ends, try flipping the cable around and try it that way. Hopefully that will work. I purchased an aftermarket OTG cable off of Amazon for less than $10 and it works with my phone and tablet. Hope this helps.
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