It is indeed possible. It will draw as much current as your load draws. As
noted on the page, it is usually not a great idea to draw more than, say,
100mA. 400mA will work, but might get a little hot.

On Fri, Sep 26, 2014 at 3:46 AM, AF <[email protected]> wrote:

> Ytai,
>
> I have been trying more upgrades but no luck at all. I also take this
> opportunity to ask you the following:
> I have been reading the IOIO-OTG Power Supply page (
> https://github.com/ytai/ioio/wiki/Power-Supply-OTG) but nothing is said
> about what I am going to ask.
> Is it possible to power external hardware through 3.3V output when the
> IOIO is being powered through USB (smartphone only)? If so, how much power
> does it draw? "400mA for any external 3.3V peripherals"? I could test it
> but it safer to ask you first...
>
> Quinta-feira, 25 de Setembro de 2014 19:21:39 UTC+1, AF escreveu:
>
>> Yes.
>>
>> Quinta-feira, 25 de Setembro de 2014 19:01:01 UTC+1, Ytai escreveu:
>>>
>>> Apparently, flashing doesn't succeed for some reason. Are you using the
>>> latest version of IOIODude? Have you tried going through the upgrade
>>> process from a different computer?
>>> On Sep 25, 2014 8:19 AM, "AF" <[email protected]> wrote:
>>>
>>>> Ytai,
>>>>
>>>> Tried configuration wipe and oscillator calibration (I think I've done
>>>> it correctly) but still no success. PC only managed to recognize the boards
>>>> in non-bootloader mode once. But when I plugged the boards again it didn't
>>>> recognized them anymore. And ioiodude never recognized the App firmware
>>>> even when the boards where recognized by the PC. There is another thing:
>>>> when in bootloader mode I can always write the same App firmware version
>>>> without having to type "--force" command even if I had wrote that same
>>>> version before...
>>>>
>>>> Quarta-feira, 24 de Setembro de 2014 19:06:10 UTC+1, AF escreveu:
>>>>>
>>>>> Ytai,
>>>>>
>>>>> Just to add this: The board I've bought the other day has just arrived
>>>>> (from Sparkfun too). It had app firmware v3.3 and I just updated to v5.0
>>>>> with no problems. A mode + No external supply + normal USB-A to micro-B
>>>>> cable. IOIODude reads both bootloader and app firmware with no problems at
>>>>> all.
>>>>> So it's confirmed, it has to be one of these options I guess (hope it
>>>>> makes sense):
>>>>> 1. The "H mode + external supply" flashing damages the IOIO board in
>>>>> the way that it will no longer work correctly in A mode for some reason
>>>>> or
>>>>> 2. There is no damage but some unknown problem about non-bootloader
>>>>> mode with Windows and/or the IOIO board appears after doing option 1
>>>>>
>>>>> De-tuned clock, could be, never thought about that. I'll see what I
>>>>> can do and I will post updates soon. Thank you once again Ytai.
>>>>>
>>>>> Quarta-feira, 24 de Setembro de 2014 18:18:47 UTC+1, Ytai escreveu:
>>>>>>
>>>>>> The wiki page about IOIODude has a section about that. The idea is
>>>>>> resetting the IOIO's clock calibration values, in case it got de-tuned 
>>>>>> for
>>>>>> some reason. Once you do that, the next time you connect the IOIO to a PC
>>>>>> it will recalibrate itself from the host PC (automatically).
>>>>>>
>>>>>> On Wed, Sep 24, 2014 at 10:01 AM, AF <[email protected]> wrote:
>>>>>>
>>>>>>> Ytai,
>>>>>>>
>>>>>>> Any comment you make here is always appreciated even if you can't
>>>>>>> help. So I thank you for that.
>>>>>>> Configuration wipe? on the IOIO's? or the PC (ioio.inf, etc...)?
>>>>>>> Could you be more specific please? I don't know how to do that on the
>>>>>>> IOIO's or what you really mean...
>>>>>>>
>>>>>>> Quarta-feira, 24 de Setembro de 2014 16:40:57 UTC+1, Ytai escreveu:
>>>>>>>>
>>>>>>>> Heikki, you seem to have gotten your cables wrong. When connecting
>>>>>>>> to a PC you don't need any adapter cable, just a common A-micro-B 
>>>>>>>> cable. As
>>>>>>>> soon as you plug the adapter into the IOIO it will think it is a host,
>>>>>>>> unless the adapter is not a standard one, in which case the IOIO will 
>>>>>>>> not
>>>>>>>> act as host even when it should (hence the reason for having the host 
>>>>>>>> mode
>>>>>>>> switch).
>>>>>>>>
>>>>>>>> I'm sorry I cannot be of more help with diagnosing the enumeration
>>>>>>>> failure. I just don't have a setup I can use to reproduce this issue. 
>>>>>>>> By
>>>>>>>> the way, has any of you attempted a configuration wipe at any point?
>>>>>>>>
>>>>>>>> On Tue, Sep 23, 2014 at 7:49 AM, AF <[email protected]> wrote:
>>>>>>>>
>>>>>>>>> heikki, I have upgraded my 3 boards (Sparkfun) from app firmware
>>>>>>>>> 3.3 to 5.0 in Windows 8.1 x64.
>>>>>>>>> One of them was brand new and never used before and was upgraded
>>>>>>>>> in A mode with no external supply. Everything OK no problems. 
>>>>>>>>> (upgrade done
>>>>>>>>> with USB-A to micro-USB-B cable, no OTG ends)
>>>>>>>>> The other two were already used with a smartphone and after the
>>>>>>>>> upgrade they started to have the issues already described here 
>>>>>>>>> (before the
>>>>>>>>> upgrade they were OK). For these two, the upgrade has been done 
>>>>>>>>> certainly
>>>>>>>>> in H mode and with external supply for the first time. After that it 
>>>>>>>>> has
>>>>>>>>> been done through every possible way. (upgrade also done with USB-A to
>>>>>>>>> micro-USB-B cable, no OTG ends)
>>>>>>>>> As Ytai confirmed in this thread, use a normal USB-A (PC) to
>>>>>>>>> micro-USB-B (IOIO) connector. No need for OTG ends and do not use the 
>>>>>>>>> ones
>>>>>>>>> that come with IOIO (micro-USB-A) because they force IOIO to be in H 
>>>>>>>>> mode.
>>>>>>>>> This non-bootloader issue really seems to be very common...
>>>>>>>>>
>>>>>>>>> Ytai,
>>>>>>>>>
>>>>>>>>> 2.05V. (in case you missed my last response)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Terça-feira, 23 de Setembro de 2014 14:34:02 UTC+1,
>>>>>>>>> [email protected] escreveu:
>>>>>>>>>
>>>>>>>>>> Hi !
>>>>>>>>>> I have similar problems as here reported thread:
>>>>>>>>>> https://groups.google.com/forum/#!topic/ioio-users/_GlTiiui5tI
>>>>>>>>>> I never managed to upgrade using Windows 8.1, but Windows 7 is
>>>>>>>>>> working nearly ok. In the bootloader mode PC is connected, but not 
>>>>>>>>>> in the
>>>>>>>>>> application mode. However Android HELLO IOIO connects and reports 
>>>>>>>>>> version
>>>>>>>>>> 5. Also my own Android app using ioiolib v5 connects
>>>>>>>>>> I am a little confused about USB cables: The board that has
>>>>>>>>>> problems is from Seedstudio, it came with red USB cable and micro A 
>>>>>>>>>> usb in
>>>>>>>>>> IOIO side. I made upgrade using it.
>>>>>>>>>> I have new boards from AliExpress. These are with black USB cable
>>>>>>>>>> with more common micro B connector on IOIO side. Is it so that 
>>>>>>>>>> upgrade
>>>>>>>>>> cannot be made with these black cables.
>>>>>>>>>>
>>>>>>>>>> tiistai, 23. syyskuuta 2014 14.55.12 UTC+3 AF kirjoitti:
>>>>>>>>>>>
>>>>>>>>>>> Ytai,
>>>>>>>>>>>
>>>>>>>>>>> 2.05V.
>>>>>>>>>>>
>>>>>>>>>>> Terça-feira, 23 de Setembro de 2014 3:06:11 UTC+1, Ytai escreveu:
>>>>>>>>>>>>
>>>>>>>>>>>> With the IOIO connected to a PC in non-bootloader mode, can you
>>>>>>>>>>>> please measure the voltage between GND and the middle leg of the 
>>>>>>>>>>>> host
>>>>>>>>>>>> switch? It should read about 2.1V.
>>>>>>>>>>>> On Sep 22, 2014 4:57 PM, "AF" <[email protected]> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Ytai,
>>>>>>>>>>>>>
>>>>>>>>>>>>> Just tried on a different PC. No luck. Same issue happens.
>>>>>>>>>>>>> Unknown USB Device in non-bootloader mode. Cannot read app 
>>>>>>>>>>>>> firmware in
>>>>>>>>>>>>> ioiodude when in this mode. (connected the IOIO in "A" position 
>>>>>>>>>>>>> with no
>>>>>>>>>>>>> external supply)
>>>>>>>>>>>>> About the USB hub in the middle, I had already verified that
>>>>>>>>>>>>> before. With or without it same issue happens too.
>>>>>>>>>>>>> I don't know what to do anymore, this is so frustrating...
>>>>>>>>>>>>>
>>>>>>>>>>>>> Segunda-feira, 22 de Setembro de 2014 21:14:58 UTC+1, Ytai
>>>>>>>>>>>>> escreveu:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Mon, Sep 22, 2014 at 12:11 PM, AF <[email protected]>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Ytai,
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thank you for your answer.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Always "A" position from now on [checked].
>>>>>>>>>>>>>>> No need for external supply [checked].
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> When you say "should not do any permanent damage (except
>>>>>>>>>>>>>>> that the IOIO will not work in a device role)" do you mean it 
>>>>>>>>>>>>>>> will not
>>>>>>>>>>>>>>> never work in device role again after "making the mistake" of 
>>>>>>>>>>>>>>> flashing in
>>>>>>>>>>>>>>> "H" mode? Or do you mean that it simply will not work in device 
>>>>>>>>>>>>>>> role when
>>>>>>>>>>>>>>> in "H" mode and that if we flash it in this mode it will not do 
>>>>>>>>>>>>>>> any damage?
>>>>>>>>>>>>>>> I guess you mean this last one.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Yes. There should be no permanent damage.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> And about the USB cable just to make clear: one should use a
>>>>>>>>>>>>>>> simple "USB type A to micro-USB type A or B" cable right? No 
>>>>>>>>>>>>>>> need for OTG
>>>>>>>>>>>>>>> on one of the ends of the cable right?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Yes, A on the PC side to micro-B on the IOIO side (NOT A to
>>>>>>>>>>>>>> micro-A, because that would be equivalent to forcing the host 
>>>>>>>>>>>>>> mode switch
>>>>>>>>>>>>>> to the "H" position).
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> About IOIO not enumerating correctly in non-bootloader mode
>>>>>>>>>>>>>>> I think you are totally right. Sometimes it is not recognized 
>>>>>>>>>>>>>>> as COM Port
>>>>>>>>>>>>>>> but as an Unknown USB Device. Also, sometimes I have to keep 
>>>>>>>>>>>>>>> pluging it in
>>>>>>>>>>>>>>> and out and "Find new hardware on Windows" and then "Update 
>>>>>>>>>>>>>>> driver" using
>>>>>>>>>>>>>>> ioio.inf. After doing that it is recognized as COM Port but 
>>>>>>>>>>>>>>> ioiodude still
>>>>>>>>>>>>>>> can't show anything in this mode (non-bootloader). When I plug 
>>>>>>>>>>>>>>> it out and
>>>>>>>>>>>>>>> then in again Windows may recognize it or not and I have to do 
>>>>>>>>>>>>>>> this process
>>>>>>>>>>>>>>> again.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Another thing to look at is that if you have a USB hub in the
>>>>>>>>>>>>>> middle, maybe bypassing it might help.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Ytai, I am going to try on a different computer very soon
>>>>>>>>>>>>>>> and post updates. Once again, thank you for your answer.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Great. Thanks!
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Segunda-feira, 22 de Setembro de 2014 18:21:18 UTC+1, Ytai
>>>>>>>>>>>>>>> escreveu:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> A few comments regarding the latest posts:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>    1. I see no evidence that we have any problems here
>>>>>>>>>>>>>>>>    related to programming not succeeding. I believe the 
>>>>>>>>>>>>>>>> comments made earlier
>>>>>>>>>>>>>>>>    about having a stable high-voltage supply are completely 
>>>>>>>>>>>>>>>> irrelevant in this
>>>>>>>>>>>>>>>>    context, since there's no external flashing involved and in 
>>>>>>>>>>>>>>>> either case
>>>>>>>>>>>>>>>>    there is no high-voltage programming on the PIC24.
>>>>>>>>>>>>>>>>    2. The A/H position should *always* by on "A" except
>>>>>>>>>>>>>>>>    for cases where you're trying to compensate for having an 
>>>>>>>>>>>>>>>> incompatible USB
>>>>>>>>>>>>>>>>    cable that will not automatically put the IOIO in host 
>>>>>>>>>>>>>>>> mode. Regardless,
>>>>>>>>>>>>>>>>    having it in "H" mode should not do any permanent damage 
>>>>>>>>>>>>>>>> (except that the
>>>>>>>>>>>>>>>>    IOIO will not work in a device role).
>>>>>>>>>>>>>>>>    3. Externally powering the IOIO when it is in device
>>>>>>>>>>>>>>>>    mode is a valid option. In this mode it will consume its 
>>>>>>>>>>>>>>>> operating current
>>>>>>>>>>>>>>>>    from the external source. For booting into bootloader mode, 
>>>>>>>>>>>>>>>> one has to
>>>>>>>>>>>>>>>>    consider that power-cycling will not take place by 
>>>>>>>>>>>>>>>> detaching the USB cable
>>>>>>>>>>>>>>>>    if the IOIO is externally powered. So in general it is 
>>>>>>>>>>>>>>>> easier to do all
>>>>>>>>>>>>>>>>    IOIODude-related stuff without applying external power.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Having said all that, we still seem to have a real problem
>>>>>>>>>>>>>>>> here that is likely not v5.x firmware related, that is, that 
>>>>>>>>>>>>>>>> the IOIO does
>>>>>>>>>>>>>>>> not enumerate correctly in non-bootloader mode.
>>>>>>>>>>>>>>>> Any chance you can attempt this on a different computer,
>>>>>>>>>>>>>>>> just for sanity-checking?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Mon, Sep 22, 2014 at 5:10 AM, AF <[email protected]>
>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> That's what I've done yesterday. I've bought another one.
>>>>>>>>>>>>>>>>> I hope now that this one will be upgraded with no problems. I 
>>>>>>>>>>>>>>>>> will do it in
>>>>>>>>>>>>>>>>> A position with no external supply because the board that is 
>>>>>>>>>>>>>>>>> OK has been
>>>>>>>>>>>>>>>>> upgraded that way.
>>>>>>>>>>>>>>>>> Thank you for your offer Chad but I live in Portugal. You
>>>>>>>>>>>>>>>>> are a nice guy.
>>>>>>>>>>>>>>>>> I will attempt to do other procedures in order to fix
>>>>>>>>>>>>>>>>> these two boards... I will post here updates if I succeed 
>>>>>>>>>>>>>>>>> because this
>>>>>>>>>>>>>>>>> seems to be a common issue. If Ytai has personal time for 
>>>>>>>>>>>>>>>>> that it would be
>>>>>>>>>>>>>>>>> great if he posted a section with a title like "What you must 
>>>>>>>>>>>>>>>>> do before
>>>>>>>>>>>>>>>>> upgrading/downgrading IOIO firmware" in the beggining of this 
>>>>>>>>>>>>>>>>> page:
>>>>>>>>>>>>>>>>> https://github.com/ytai/ioio/wiki/IOIO-OTG-Bootloader-and-
>>>>>>>>>>>>>>>>> IOIODude. In a short text he could warn IOIO users what
>>>>>>>>>>>>>>>>> position of the H-A switch they must use before connecting to 
>>>>>>>>>>>>>>>>> the PC and if
>>>>>>>>>>>>>>>>> they should use external supply or not. Because I think that 
>>>>>>>>>>>>>>>>> many users
>>>>>>>>>>>>>>>>> find this confusing and then mistakes occur. Btw, Ytai please 
>>>>>>>>>>>>>>>>> correct the
>>>>>>>>>>>>>>>>> link in the sentence "The first thing to do is to grab the 
>>>>>>>>>>>>>>>>> latest version
>>>>>>>>>>>>>>>>> of IOIODude
>>>>>>>>>>>>>>>>> <https://github.com/ytai/ioio/raw/master/release/apps/IOIODude-0100.zip>"
>>>>>>>>>>>>>>>>> of the same page to version 1.2. I guess you missed it.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thank you all for your responses and feel free to keep
>>>>>>>>>>>>>>>>> trying to solve this issue. I will do the same.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Segunda-feira, 22 de Setembro de 2014 2:27:49 UTC+1, Chad
>>>>>>>>>>>>>>>>> Kennedy escreveu:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>  Well, short of sending both to someone who has done it
>>>>>>>>>>>>>>>>>> before and has a known go physical setup. You may have only 
>>>>>>>>>>>>>>>>>> one option, buy
>>>>>>>>>>>>>>>>>> another one or two...
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> I would be willing to try the updates for you if you pay
>>>>>>>>>>>>>>>>>> for shipping both ways. This assumes shipping is reasonable 
>>>>>>>>>>>>>>>>>> and you are in
>>>>>>>>>>>>>>>>>> the U.S.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Maybe time will pass and you'll have an "Ah ha" moment.
>>>>>>>>>>>>>>>>>> Maybe buys some fresh 9V and try the flashing. A fresh 9V 
>>>>>>>>>>>>>>>>>> should be enough
>>>>>>>>>>>>>>>>>> to at least flash.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On 9/21/2014 4:58 PM, AF wrote:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> I see your point Chad. Actually now I am trying to
>>>>>>>>>>>>>>>>>> upgrade/downgrade the firmware in A position + external 
>>>>>>>>>>>>>>>>>> supply (USB 5V 1A
>>>>>>>>>>>>>>>>>> to IOIO JST connector, homemade adaption made by myself, 
>>>>>>>>>>>>>>>>>> works fine) but
>>>>>>>>>>>>>>>>>> still no luck... I don't know what to do anymore... I think 
>>>>>>>>>>>>>>>>>> I have tried
>>>>>>>>>>>>>>>>>> almost everything!
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Domingo, 21 de Setembro de 2014 22:49:44 UTC+1, Chad
>>>>>>>>>>>>>>>>>> Kennedy escreveu:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> My experience with PIC chips has taught me that "not
>>>>>>>>>>>>>>>>>>> enough power"
>>>>>>>>>>>>>>>>>>> during the burn/flash/programming time will give
>>>>>>>>>>>>>>>>>>> significantly
>>>>>>>>>>>>>>>>>>> inconsistent results. Your problem is sounding more like
>>>>>>>>>>>>>>>>>>> that since
>>>>>>>>>>>>>>>>>>> you've basically done it on two IOIOs and not a
>>>>>>>>>>>>>>>>>>> procedural problem like
>>>>>>>>>>>>>>>>>>> I faced. At the time of updating the firmware there was
>>>>>>>>>>>>>>>>>>> insufficient
>>>>>>>>>>>>>>>>>>> power applied or the IOIO was in H instead of A - these
>>>>>>>>>>>>>>>>>>> are my theories.
>>>>>>>>>>>>>>>>>>> I would encourage you to re-update and/or roll back to a
>>>>>>>>>>>>>>>>>>> prior
>>>>>>>>>>>>>>>>>>> versionsV0330. fwiw I used a 9V battery and it did not
>>>>>>>>>>>>>>>>>>> last long
>>>>>>>>>>>>>>>>>>> powering the IOIO OTG or for that matter any PIC chips
>>>>>>>>>>>>>>>>>>> from my projects
>>>>>>>>>>>>>>>>>>> I used prior during the flasing process. I dropped it
>>>>>>>>>>>>>>>>>>> quickly and found
>>>>>>>>>>>>>>>>>>> a usb power supply terminated pins on it and connected
>>>>>>>>>>>>>>>>>>> the IOIO. My plug
>>>>>>>>>>>>>>>>>>> runs  5V DC @ 2A. Try updating again verifying all power
>>>>>>>>>>>>>>>>>>> needs. I am
>>>>>>>>>>>>>>>>>>> going way out on a limb for this IOIO OTG PIC model but
>>>>>>>>>>>>>>>>>>> I know my other
>>>>>>>>>>>>>>>>>>> PICs require 12+ Volt minimum to achieve a good
>>>>>>>>>>>>>>>>>>> flashing, the PC's USB
>>>>>>>>>>>>>>>>>>> will provide some power, but is likely needing to be
>>>>>>>>>>>>>>>>>>> supplemented with
>>>>>>>>>>>>>>>>>>> external. Again stating this from experience and not
>>>>>>>>>>>>>>>>>>> looking at the
>>>>>>>>>>>>>>>>>>> IOIO's PIC's specifications/requirements.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> On 9/21/2014 2:12 PM, AF wrote:
>>>>>>>>>>>>>>>>>>> > black7,
>>>>>>>>>>>>>>>>>>> >
>>>>>>>>>>>>>>>>>>> > Both boards are showing inconsistent behaviour. I only
>>>>>>>>>>>>>>>>>>> managed once to show the app firmware on ioiodude for one 
>>>>>>>>>>>>>>>>>>> of the boards
>>>>>>>>>>>>>>>>>>> (don't know why it worked that time, the procedure was the 
>>>>>>>>>>>>>>>>>>> same for both
>>>>>>>>>>>>>>>>>>> boards). Now I can't show it for both boards and one of 
>>>>>>>>>>>>>>>>>>> them sometimes
>>>>>>>>>>>>>>>>>>> works with my smartphone other times doesn't. The other one 
>>>>>>>>>>>>>>>>>>> doesn't work at
>>>>>>>>>>>>>>>>>>> all. This makes no sense I know...
>>>>>>>>>>>>>>>>>>> > And about upgrading the firmware with the external
>>>>>>>>>>>>>>>>>>> power supply: that's what I was trying to say on the first 
>>>>>>>>>>>>>>>>>>> post, it is
>>>>>>>>>>>>>>>>>>> highly probable that I've done that and also with H 
>>>>>>>>>>>>>>>>>>> position on switch... I
>>>>>>>>>>>>>>>>>>> can't remember but I think I've done it.
>>>>>>>>>>>>>>>>>>> > At first the COM ports only appeared in H position.
>>>>>>>>>>>>>>>>>>> And when in A position they appeared as unknown devices. 
>>>>>>>>>>>>>>>>>>> Now after I did
>>>>>>>>>>>>>>>>>>> all those tries and procedures I managed to make them 
>>>>>>>>>>>>>>>>>>> recognized as COM
>>>>>>>>>>>>>>>>>>> ports in both H or A positions.
>>>>>>>>>>>>>>>>>>> >
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ____________________________________________________________
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> The End of the &#34;Made-In-China&#34; Era
>>>>>>>>>>>>>>>>>>> The impossible &#40;but real&#41; technology that could
>>>>>>>>>>>>>>>>>>> make you impossibly rich.
>>>>>>>>>>>>>>>>>>> http://thirdpartyoffers.netzero.net/TGL3241/
>>>>>>>>>>>>>>>>>>> 541f47d59ba4247d57d79st03duc
>>>>>>>>>>>>>>>>>>>
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