Develop Bugs

USB host doesn't work

Guys, I bought a USB OTG cable today. Nothing special, but my GNexus doesn't want to work with me. No matter what I connect - USB mouse, keyboard, flash drive [w/ StickMount by Chainfire] - Nexus doesn't recognize it. Tried wiping and reflashing my ROM (CM10, today's nightly) but it doesn't help. I use Air Kernel, but flashing franco.kernel or using the stock one doesn't work too. It looks like there's no power in Nexus' micro socket. However, when I connect a USB hub with external power source Nexus starts charging. Any ideas?
Best,
webDeWo.pl

Have you tried turning off "fast charge"?

WiredPirate said:
Have you tried turning off "fast charge"?
Click to expand...
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I've never turned it on

webDeWo said:
Guys, I bought a USB OTG cable today. Nothing special, but my GNexus doesn't want to work with me. No matter what I connect - USB mouse, keyboard, flash drive [w/ StickMount by Chainfire] - Nexus doesn't recognize it. Tried wiping and reflashing my ROM (CM10, today's nightly) but it doesn't help. I use Air Kernel, but flashing franco.kernel or using the stock one doesn't work too. It looks like there's no power in Nexus' micro socket. However, when I connect a USB hub with external power source Nexus starts charging. Any ideas?
Best,
webDeWo.pl
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You say that when you connect the Nexus to a powered USB hub, it starts to charge. Does that mean you have the USB-OTG cable hooked to the Nexus, then some sort of gender changing adapter to hook it to the USB hub? What happens if you plug the flash drive into the USB hub while the Nexus is "charging"? Does the Nexus continue to charge and you get access to the flash drive???

CNLiberal said:
You say that when you connect the Nexus to a powered USB hub, it starts to charge. Does that mean you have the USB-OTG cable hooked to the Nexus, then some sort of gender changing adapter to hook it to the USB hub? What happens if you plug the flash drive into the USB hub while the Nexus is "charging"? Does the Nexus continue to charge and you get access to the flash drive???
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I just have a USB hub with a socket for power adaptor - it's nothing special. However, when and I connect anything to my hub while Nexus is "charging" it still doesn't recognize this device. I'm outta ideas.

webDeWo said:
I just have a USB hub with a socket for power adaptor - it's nothing special. However, when and I connect anything to my hub while Nexus is "charging" it still doesn't recognize this device. I'm outta ideas.
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Darn. I was hoping you had somehow magically discovered that the phone can charge itself while still being in USB Host Mode. That'd be absolutely fantastic!

Try it on stock JB, CM10 isn't even alpha. Plus, make sure any custom kernels you plan on trying support it.
Sent from my Galaxy Nexus using xda app-developers app

Smokeey said:
Try it on stock JB, CM10 isn't even alpha. Plus, make sure any custom kernels you plan on trying support it.
Sent from my Galaxy Nexus using xda app-developers app
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I've tried CM9 stable a few moments ago - doesn't work.

Your cable is probably defective. I just bought mine, works great, but in reading reviews many people reported defective cables.
Sent from my Transformer TF101 using Tapatalk 2

SidereusOne said:
Your cable is probably defective. I just bought mine, works great, but in reading reviews many people reported defective cables.
Sent from my Transformer TF101 using Tapatalk 2
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Just bought the second one - still doesn't work. Why?

http://forum.xda-developers.com/archive/index.php/t-1092493.html
Check out that link to see a potential cable problem.
The roms [cm9] and kernel [stock] should work for you.
Is the cable you are buying specifically stating usb otg on the package? If not, buying 2 cables from the same store of the same type won't change anything.
This is what works for mr.
http://www.amazon.ca/Micro-Adapter-...2?s=electronics&ie=UTF8&qid=1345555356&sr=1-2
Sent from my Transformer TF101 using Tapatalk 2

The second one is different - I'n sure it's not the cable problem. Something with my software? I doubt it. Hardware problem?
Sent from my Galaxy Nexus using Tapatalk 2

I seem to get quite a bit of opposition to this but as you'll see there are links included..one from Samsung and if you look in the manual that came with phone, it also talks about the OEM chargers. Try disabling NFC then try yo charge. http://forum.xda-developers.com/showthread.php?t=1841584
*This Jedi master be a Ninj-ESS*

Turning NFC off doesn't help. USB host still does not work.
Sent from my Galaxy Nexus using Tapatalk 2

webDeWo said:
Turning NFC off doesn't help. USB host still does not work.
Sent from my Galaxy Nexus using Tapatalk 2
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Do you know someone else with a Galaxy Nexus, to test the cables and ensure they do actually work?

I've tried them on HTC One X - they DO work :/
Sent from my Galaxy Nexus using Tapatalk 2

webDeWo said:
I've tried them on HTC One X - they DO work :/
Sent from my Galaxy Nexus using Tapatalk 2
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It was suggested 2x in the thread to go completely stock [rom + kernel].
You stated trying CM10 and CM 9, as well as stock kernel, but you never say if you tested stock/stock.

Mkay, I'll try the stock JB tomorrow.
Sent from my Galaxy Nexus using Tapatalk 2

Tried the stock Jelly Bean. Doesn't work :/
Sent from my Galaxy Nexus using Tapatalk 2

webDeWo said:
Tried the stock Jelly Bean. Doesn't work :/
Sent from my Galaxy Nexus using Tapatalk 2
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Accidentally thanked you.
What I'm trying to say is, AFAIK stock kernel doesn't support OTG. So try going stock then flashing a kernel.
Blazing on my Nexus Prime

OTG Cable problem

I am having this problem I can mount everything from my mouse to my usb. I bought an sd card adapter and put my sd card in the adapter, but didn't work. I know the adapter is not broken because I have tried it on my computer and it worked just fine

dia_naji said:
I am having this problem I can mount everything my mouse my usb. I bought an sd card adapter and out my sd card in the adapter but didn't work. It work just fine on my computer
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Is the adapter 3.0?
Sent from my SGH-T999 using Tapatalk 2

elesbb said:
Is the adapter 3.0?
Sent from my SGH-T999 using Tapatalk 2
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It's a 2.0 ..

dia_naji said:
It's a 2.0 ..
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How big if the sd card?
Sent from my SGH-T999 using Tapatalk 2

it's a 32 gb class 10

dia_naji said:
it's a 32 gb class 10
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Ahh that explains it. Search ntfs in the play store and pick one you like. You need an app to mount the ntfs partition.
Sent from my SGH-T999 using Tapatalk 2

It works on my friends Galaxy nexus ???? I'm running 4.1.2

dia_naji said:
It works on my friends Galaxy nexus ???? I'm running 4.1.2
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That's strange.. it most likely is ntfs formatted though. I'd try USB otg manager from the market. Your USB port isn't damaged at all is it?
Sent from my SGH-T999 using Tapatalk 2

elesbb said:
That's strange.. it most likely is ntfs formatted though. I'd try USB otg manager from the market. Your USB port isn't damaged at all is it?
Sent from my SGH-T999 using Tapatalk 2
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It's not damaged at all. The weird thing my observations are that there is not enought power getting to the adaptor. When I plug the adaptor in my friends Galaxy nexus running on stock rom the light on the adaptor lights up just fine, but mine just blinks for like a fraction of a second and doesn't connect. I'm also thinking it's the rom or it needs a new kernal ???

You need to check whether the kernel you're on supports otg.
Sent from my SGH-T989 using Tapatalk 2

That's not it.. I can connect my mouse and and my USB storage device, but when I connect my SDHC adaptor of doesn't work .
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

dia_naji said:
It's not damaged at all. The weird thing my observations are that there is not enought power getting to the adaptor. When I plug the adaptor in my friends Galaxy nexus running on stock rom the light on the adaptor lights up just fine, but mine just blinks for like a fraction of a second and doesn't connect. I'm also thinking it's the rom or it needs a new kernal ???
Click to expand...
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dia_naji said:
That's not it.. I can connect my mouse and and my USB storage device, but when I connect my SDHC adaptor of doesn't work .
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Weird.. I've only seen power with hard drives that use the USB power. Can you post the exact make model of the adapter? Also, do you have a powered USB hub you could try? As in connect hub to phone, plug adapter into hub. That way the adapter most certainly is getting the power needed.
It also might be ROM kernel related.
Sent from my SGH-T999 using Tapatalk 2

elesbb said:
Weird.. I've only seen power with hard drives that use the USB power. Can you post the exact make model of the adapter? Also, do you have a powered USB hub you could try? As in connect hub to phone, plug adapter into hub. That way the adapter most certainly is getting the power needed.
It also might be ROM kernel related.
Sent from my SGH-T999 using Tapatalk 2
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I have tried everything... Changed the kernal. I literally tried every single kernal. I changed the rom, from jedi mind trick to cm9 stable to koodo. I might just buy a newer one. I tired the usb hub and still not connecting. Thanks for everything btw. I am still looking into this because it's something that I think that needs to be done. Still boggles my mind that it works on the Galaxy Nexus but not that S2

dia_naji said:
I have tried everything... Changed the kernal. I literally tried every single kernal. I changed the rom, from jedi mind trick to cm9 stable to koodo. I might just buy a newer one. I tired the usb hub and still not connecting. Thanks for everything btw. I am still looking into this because it's something that I think that needs to be done. Still boggles my mind that it works on the Galaxy Nexus but not that S2
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That is very strange. Did you try swapping the otg cable?
Sent from my SGH-T999 using Tapatalk 2

Yup I have 4 of them
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

dia_naji said:
Yup I have 4 of them
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Hmmm that's really weird how it won't work.
Sent from my SGH-T999 using Tapatalk 2

Yea.. It is weird.

Yea.. It is weird.

dia_naji said:
Yea.. It is weird.
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While I haven't encountered any issues with sd adapters on the t989, it sounds like you're having either a power problem or that particular adapter isn't playing nice with your kit. You can rule out power by plugging you usb otg to a powered hub and testing with a high powered device (usb drive for example) and should that work, then trying the adapter. If the adapter works off the hub, it's likely a power problem. If not, the adapter hates you and loathes samsung, and wants you to by a nexus.
While not common, the adapter could be asking for a full 500ma even though it doesn't require it or is having some other isb negotiations headbutt with your gs2.
you can also try popping open a console terminal and checking what's happening under the hood. you should be able to see in the output of dmesg when you connect the adapter and what the kernel is saying about it, which will help point you in the right direction.
--fg

Is My Nexus Breaking My Chargers?

Hopefully you guys can give me some insight here. I've gone through 5 mini usb cables and 1 car charger in the last few weeks. They'll work perfectly for charging my phone and then just stop out of the blue and never work again. I've tried different brands and it's happening with all of them. Could it be the phone?
Sent from my Galaxy Nexus using xda premium

lukin321 said:
Hopefully you guys can give me some insight here. I've gone through 5 mini usb cables and 1 car charger in the last few weeks. They'll work perfectly for charging my phone and then just stop out of the blue and never work again. I've tried different brands and it's happening with all of them. Could it be the phone?
Sent from my Galaxy Nexus using xda premium
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Click to collapse
Are you using any fast charge kernel?
Swype'ed on my CM10 Galaxy Nexus

Your phone is just drawing power, so it's unlikely that your phone smoked your charger.
Check your wall.

No, I haven't flashed any kernels and it's happened with 3 different ROMs
Sent from my Galaxy Nexus using xda premium

That was my initial thought too but it just seems strange for so many of these things to just break all at the same time s
Sent from my Galaxy Nexus using xda premium

* * Cable that does everything smart dock does? OTG USB, HDMI, Charge etc

Hi guys,
I'm interested to know if there's a cable that can do everything that the smart dock does as I don't like the fact I can't use the smart dock in landscape mode.
I want to connect the Note 2 to a screen via HDMI, keep it charged/charging and have a female USB port so I can connect a hub/PS3 controller/Memory stick etc.
Also, I've read online that I may need to root to get all this functionality working?
Sorry if this has been asked before, I'm new to the Android community, just finished using BlackBerry.
Thanks

That's the dream. For now an non existant one...
Sent from my GT-N7100 using xda app-developers app

Picked this up on ebay.2 out of 3 in bad for the money
Sent from my GT-N7100 using xda app-developers app

Just finding a smartdock somewhere would make me happy... sold out or backordered everywhere

lordspector said:
Picked this up on ebay.2 out of 3 in bad for the money
Sent from my GT-N7100 using xda app-developers app
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Which cable? And what does it do please? Can it charge the note 2 but also have OTG?
Thanks

Nexus 7 USB port repair

Here guys I've broken my USB port for sure. I had it charging when it slipped off the table and DDT'd on the charger cord. I knew it was broken before I picked it up. Now I'm stuck using a wireless charger, which is cool, but doesn't charge as fast and now I have no way of connecting it to the computer. Has anyone had any luck repairing their's or a company that will do it besides Asus. Maybe a part?
Nexus 7 2013 via Tapatalk Pro

I don't know about where you can get it repaired but in the meantime use airdroid to file transfer wirelessly to your computer
Sent from my LG-LS970 using xda app-developers app

DQEight said:
I don't know about where you can get it repaired but in the meantime use airdroid to file transfer wirelessly to your computer
Sent from my LG-LS970 using xda app-developers app
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Click to collapse
Yeah I know if the different wireless ways but mainly I would need it to charge faster then this wireless one
Nexus 7 2013 via Tapatalk Pro