When the IOIO connects to the Android for the first time after power-up,
does the Yellow LED blink briefly?
Otherwise, does it do so when you connect it to a different USB device (can
be a keyboard, mouse, whatever)?



On Thu, Jan 9, 2014 at 6:08 AM, Danny Epperson <[email protected]> wrote:

> Thanks for the reply, Ytai.
>
> It is true that nothing gets hot to the touch. I also measured the 3v3
> rail and it is looking good.
>
> Regarding the firmware upgrade, IOIOManager doesn't see the IOIO, so I'm
> not sure that is an option.
>
> I'm running much older versions of Android that don't support
> OpenAccessory (2.3.6), so I require ADB. I did try turning that off and
> then on again, but there was no change. What kind of scenarios can you
> imagine that would cause the Debug icon to show up, but not allow the IOIO
> to connect? My thoughts were that the PIC firmware was gone, or the
> bootloader was stuck, but in some other posts I see you mention the Stat
> LED staying lit (vs mine staying dark) in those cases.
>
> The debug icon indicates that the PIC firmware is somewhat working, right?
>
>
> On Thursday, January 9, 2014 2:57:22 AM UTC-6, Ytai wrote:
>
>> Re possible hardware failure:
>> If you're measuring 5V on the 5V rail while powering from Vin and nothing
>> on the board gets hot, most likely your hardware is just fine. The warning
>> on the Seeed page is a pretty rare failure mode and has been observed only
>> on IOIO-OTG AFAIK. You're using the IOIO v1 I figure?
>>
>> Assuming that's the case, what's next?
>> If you're getting the ADB icon on the Android, then your IOIO is alive
>> and kicking and is able to establish a connection with the Android. In that
>> case, what Android version are you running? From Android 4.2.2 and onward,
>> the IOIO no longer works over ADB, but only over OpenAccessory, which
>> requires you to actually turn ADB *off* on your Android. It also
>> requires firmware of version 3.10, so if you have an ancient firmware
>> version you'll need to upgrade. Unfortunately, for that you'll need to find
>> an Android of version 4.0 or lower, as IOIO Manager compatibility has been
>> broken since 4.1 or so. Note that this issue have been addressed on the
>> IOIO-OTG and does not exist there (firmware upgrades are done from a PC).
>>
>>
>> On Wed, Jan 8, 2014 at 7:19 PM, Danny Epperson <[email protected]> wrote:
>>
>>> Hi group!
>>>
>>> I've been using the IOIO for some time and suddenly it quit working. I
>>> was thinking it was my fault in external hardware, so I reverted all
>>> changes and went back to just bare IOIO plus phone and HelloIOIO.apk but I
>>> cannot get it to work. When I connect the IOIO to the phone, I see the
>>> charge LED and ADB debug icon appear, but the Stat LED never even blinks on
>>> the IOIO.
>>>
>>> I've tried troubleshooting my 5v rail. The voltage looks good there and
>>> I have tried external 12v to the VIN pins with no change. On this subject,
>>> on the IOIO OTG at Seeed, I noticed there is a warning about running long
>>> power wires with >10v, what is this about? This problem for me happened
>>> after moving to a long 12v power supply line, could that be related?
>>>
>>> I thought I was having a silly SDK issue, so I went all the way back to
>>> the APP-IOIO010.zip bundle, installed that HelloIOIO.apk, still to no
>>> avail. I've tried this on multiple phones with no joy. I've also tried
>>> using a newer Application Image with IOIO Manager, with no luck.
>>>
>>> It was also suggested to a user to check the logcat output for IOIO
>>> messages. For me there are no messages between the HelloIOIO app startup
>>> and shutdown.
>>>
>>> D/SocketIOIOConnection(  736): Waiting for TCP connection
>>> D/SocketIOIOConnection(  736): Client initiated disconnect
>>>
>>>
>>> Is it broken? Does the debug icon give me any hope?
>>>
>>> Thanks,
>>> Danny E - d33z.com
>>>
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