Ah yes, that did the trick. I wasn't aware that was necessary. Thank you 
very much for your help.

On Tuesday, May 6, 2014 12:17:36 PM UTC-7, Ytai wrote:
>
> Did you remember to disable USB debugging on the Galaxy? What's in the 
> logcat output?
> On May 6, 2014 10:17 AM, "Alexander Bashmakov" 
> <[email protected]<javascript:>> 
> wrote:
>
>> Previously I was able to run both the pre-compiled version of HelloIOIO 
>> and one that I compiled myself. In the process of trying to fix the issue, 
>> I updated the firmware to 5.00/5.03, to see if that would fix it. Some more 
>> information, this morning, after letting it "rest" overnight, I am now able 
>> toggle the LED with HelloIOIO, but only with one of my phones (HTC 
>> Incredible - 2.3.4), but not with the other (Samsung Galaxy S3 - 4.3). I am 
>> not sure any more if this is a hardware problem or if this was caused by 
>> the firmware update. I tried both 3 and 5 versions of the pre-compiled 
>> HelloIOIO app on the Galaxy, but neither worked.
>>
>> On Tuesday, May 6, 2014 8:41:21 AM UTC-7, Ytai wrote:
>>>
>>> It doesn't really sound like a hardware problem if you're able to 
>>> control the LED with another app.
>>> Which firmware version is reported by the hardware tester?
>>> Are you using the pre-compiled HelloIOIO? Which one?
>>>
>>>
>>> On Tue, May 6, 2014 at 8:24 AM, Alexander Bashmakov 
>>> <[email protected]>wrote:
>>>
>>>> I bought an OTG board from SparkFun and was going through their 
>>>> tutorials when my board became damaged. I believe it may have happened 
>>>> when 
>>>> I connected a buzzer element backwards (see attached screenshot). Though 
>>>> I'm not sure if that would have caused the damage, but the symptom is that 
>>>> I can no longer control the stat LED on the board. One interesting bit of 
>>>> information: I downloaded the IOIO Hardware Tester app, and if I plug the 
>>>> board into my phone while the app is running, it will show as Connected 
>>>> and 
>>>> I'm able to toggle the LED using the button in the app. However, as soon 
>>>> as 
>>>> I leave the app and try to toggle the LED with the HelloIOIO app, it does 
>>>> not work (it used to work before the damage). If I then go back to the 
>>>> tester app, it will show as Not Connected, I have to unplug the USB and 
>>>> plug it back in order to show Connected again. Please, any suggestions 
>>>> would be appreciated.
>>>>  
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>>>
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