Develop Bugs

[Q] dual usb cable to overcome pc usb limitation possible?

Would a dual usb cable work to get a faster charge from a pc or other device that has more than one usb port available?
Something link amazon item number B00439567Q
Typically these are used with hard drives to overcome this limitation, so I'm wondering if it would have the same effect on the Galaxy Nexus.

Link referred to by OP: http://www.amazon.com/StarTech-com-...567Q/ref=sr_1_1?ie=UTF8&qid=1330558360&sr=8-1

Probably not. The nexus isn't really a hard drive, it's more like another computer, and you typically can't connect pc to pc via USB... The limitation is that the sd is actually a virtual sd, and you're actually connecting to the whole OS via USB...
You're better off mounting a stick drive and then using that to transfer files to your PC...

danger-rat said:
Probably not. The nexus isn't really a hard drive, it's more like another computer, and you typically can't connect pc to pc via USB... The limitation is that the sd is actually a virtual sd, and you're actually connecting to the whole OS via USB...
You're better off mounting a stick drive and then using that to transfer files to your PC...
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Guess you didn't read his post... He's talking about using dual USB for power.
OP, I think it'd work. USB only puts out 500mA, so putting 2 together would improve charging times more like a wall charger that does 1A. No guarantee how the PC would handle it though.
Is your phone not charging from a USB port? Because mine does... Slowly, but it does...

What about USB 3 it has a lot more power.
Sent from my ADR6400L using XDA App

jamesiaustin said:
What about USB 3 it has a lot more power.
Sent from my ADR6400L using XDA App
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From what I have read usb3 is .8a while a single usb2 is .5a. So .3 more a. Unfortunately I have no usb3 hosts, so that not an option.
Anyway thanks martonikaj, I will change my cables and hopefully get a more timely charge.

Unless you short the data wires on the usb cable or use a kernel that has full usb charging enabled it won't matter how many ports you use. The phone detects the data connection and reduced charging to the slow charge to prevent overloading a pc usb port.
Sent from my Galaxy Nexus using Tapatalk

Maybe flash a kernel that has the USB Fast Charge mod enabled?

[Q] USB Charging

Hi, why cant i charge my play trough the usb cable?

I don't know, why don't you ask someone from tech support?

You can.
Get a new cable, its around 2-4euros.
Sent from my R800i using xda app-developers app

Some more details would be nice.
Does your phone just won't charge, while connected to your pc via USB,
or do you also can't get any access through USB to your phone?!

AverageAmit said:
Hi, why cant i charge my play trough the usb cable?
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It depends where the USB is connected to. Not all computers (and other appliances) support charging external devices through USB.

as the above poster said not all computers support charging but also some cables have diferent connectors so some may only support data transfer and nothing more

This is the orriginal cable that i got with the play, it does transfer data, the red light which shows that its charging is off, the battery icon shows that its charging, while actually its not charging at all.
my USB does support charging because my Ipod can be charged from it.

Ok well you have two options you can try a difrent charger and see if its just the cable or call sony
Sent from my GBTweaked V7.1 R800x using Tapatalk 2

how to use usb flash drive through otg cable?

Hey guys
i just got a usb otg cable but i can't get the kindle to tead my flash drive.
any help pls?

vess_csm said:
Hey guys
i just got a usb otg cable but i can't get the kindle to tead my flash drive.
any help pls?
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Many OTG peripherals require the use of a powered USB hub as the Kindle needs power assistance in the USB department. The app "Stick Mount" has rendered success with accessing some flash drives. Unfortunately not ALL flash drives are compatible.

guitarman2010 said:
Many OTG peripherals require the use of a powered USB hub as the Kindle needs power assistance in the USB department. The app "Stick Mount" has rendered success with accessing some flash drives. Unfortunately not ALL flash drives are compatible.
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i tried that app and nothing happens. it has a diagnostic tool also and it recognizes the flash drive.. but with no success.
if i need external power for a hub, then this entire thing is pointless.

vess_csm said:
i tried that app and nothing happens. it has a diagnostic tool also and it recognizes the flash drive.. but with no success.
if i need external power for a hub, then this entire thing is pointless.
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If that app picks it up than a powered USB hub will probably make it work. For example....I tried using an optical USB mouse that was plugged straight into the OTG cable plugged straight into the Kindle. The mouse actually lite up BUT nothing happened besides that. When I obtained a powered hub it worked great using the same OTG cable with hub. What ROM are you using just out of curiousity?

I am using the 4.2.1_r1 AOSP ROM.
the thing is that I don't want to be dependant on elecricity. there isn't a plug every where. thank you for the time spent on my question
maybe should a nexus 7 and forget about it.
sent using xda app

vess_csm said:
I am using the 4.2.1_r1 AOSP ROM.
the thing is that I don't want to be dependant on elecricity. there isn't a plug every where. thank you for the time spent on my question
maybe should a nexus 7 and forget about it.
sent using xda app
Click to expand...
Click to collapse
Well if you don't want to be dependent on electricity there is a different method people have used for a USB power supply. Here is a Youtube link that should explain it, or you could just get a Nexus 7 lol http://m.youtube.com/#/watch?v=BFEMh0ZYT5M&desktop_uri=/watch?v=BFEMh0ZYT5M
Sent from my SCH-R880 using xda app-developers app

thanks for all the help
sent using xda app

The sandisk cruzer sdcz36-004g
http://www.amazon.com/gp/product/B007JR531I/ref=sr_1_2?ie=UTF8&keywords=sdcz36-004g&qid=1357184937&sr=8-2
Only 4gb but I'd prefer to carry around a few on a ring than a powered hub, or that arrangement with the Y cable and the phone charger.
Plug it directly into the otg cable and off you go, I've played 720p video from the flashdrive with several ROMs recently, paranoid android worked great, TWA_priv's 4.2 also works but with some mounting wackiness sometimes.
USB mass storage watcher seems better than stickmount right now IMO.

Would the 8gb cruzer switch work? I am planning on buying an OTG Cable and need to specify.

Vlasp said:
Would the 8gb cruzer switch work? I am planning on buying an OTG Cable and need to specify.
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Click to collapse
Sure it will work, but you'll need a wired hub of some sort to mount it, either connected to an outlet or using a Y cable and a battery powered phone charger, which is hassle to carry, finicky to mount and not really OTG. I've never found a drive over 4 gb which was usable just by sticking it into the end of the otg cable, and most drives 4 gb or under don't work either.
The cruzer 4gb is my one and only recommendation I'm afraid.

I know this thread is a little old but just wanted to list the mini attache 16gig flash works with no powered hub.
Downside is that it only works till about 70% of battery. After that its not enough voltage

Plug it into the kindle, then plug in the flash drive.

nunook said:
I know this thread is a little old but just wanted to list the mini attache 16gig flash works with no powered hub.
Downside is that it only works till about 70% of battery. After that its not enough voltage
Click to expand...
Click to collapse
Can you detail which app you used to mount it? I've tried quite a few of them but stick with USB otg helper and USB mass storage watcher.

Micro usb will charge but doesn't recognize that it is plugged into a computer

The phone charges fine but when connected to a computer it doesn't recognize that it is. It isn't rooted or anything it isn't running a custom rom. has anyone had this issue? has my micro usb port simply worn out?

I had a Nexus 4 that exhibited the same problem. I believe the micro usb simply can not endure the repetitive insertion and exertion of the usb cable. The mini usb standard was much more robust, at least physically.
Sent from my Galaxy Nexus using xda premium

look in the charging port to see if there is any gunk in there. clean it out if there is

jamesc760 said:
I had a Nexus 4 that exhibited the same problem. I believe the micro usb simply can not endure the repetitive insertion and exertion of the usb cable. The mini usb standard was much more robust, at least physically.
Sent from my Galaxy Nexus using xda premium
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I agree, micro USB sucks and mini USB isn't that much bigger the first phone to use mini USB can have all my money

are you using a customer kernel with fast charge turned on? if so it wont recognize on a computer....just another thought besides hardware

chasew83 said:
are you using a customer kernel with fast charge turned on? if so it wont recognize on a computer....just another thought besides hardware
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Nope, everything is stock.

make sure your sdk drivers are updated

Gilligan94 said:
Nope, everything is stock.
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try installing the universal samsung driver, the attached link should be it, i haven't had to use it in a while but still had it in my downloads.
https://www.dropbox.com/s/vxidnickna6e1a9/Samsung_USB_Driver_for_Mobile_Phones_v1.5.14.0.exe

have you tried plugging it into a different computer?

philgrzyb said:
have you tried plugging it into a different computer?
Click to expand...
Click to collapse
+1
and try a different port as well

Seraz007 said:
+1
and try a different port as well
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I have the same problem.
I have tried a different port and computer as well.
I used the same cord for the wall charger and connecting to the PC.
When I connect it to the wall charger, it works fine.
However, when I connect it to the PC, nothing happens.
The phone won't even recognize that it's being charged.
It won't even show a message...
Anyone have a solution or know why?

Broken USB?

I've had a charger go boom (explode). And since then I can't connect my nexus to PC via USB neither does the tablet itself recognize when it's being powered, altho it charges. No indication tho that charging is going on just eventually it reaches 100%
Any ideas if there's some kind of fix for this? I doubt I can return it to RMA since it wasn't charged by original charger and even more importantly the thing is rooted with custom ROM. Without being able to connect via USB to do fastboot commands i can't even return the thing to the stock. Nothing is working via USB connector. Tablet just doesn't recognize anything being attached. PC host or charger
I've opened it and tried disconnecting battery and connecting it again but that didn't help. USB connector doesn't seem to be fried tho.
Any suggestions are welcome

Adb over wifi ?
Sent from my LG-D803 using XDA Free mobile app

deadgiveaway said:
Adb over wifi ?
Sent from my LG-D803 using XDA Free mobile app
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Already am using adb over wireless but that doesn't solve my flashing problem. I can't flash from sideload and even more importantly that doesn't work for fastboot commands in bootloader.
Also transfering files over wifi is pain in the ...

jxl69 said:
Already am using adb over wireless but that doesn't solve my flashing problem. I can't flash from sideload and even more importantly that doesn't work for fastboot commands in bootloader.
Also transfering files over wifi is pain in the ...
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did you find any solution to you usb problem?
Im in the same boat, after my usb cable got squezed in my car door my nexus 7 2013 wont connect to anything (PC, DAC or usb stick)
what i could se om the cable was that the power +5 got connected to one of the data leads.
/Diio

Diio said:
did you find any solution to you usb problem?
Im in the same boat, after my usb cable got squezed in my car door my nexus 7 2013 wont connect to anything (PC, DAC or usb stick)
what i could se om the cable was that the power +5 got connected to one of the data leads.
/Diio
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Click to collapse
Nope haven't bothered. Probably I would need to do some soldering. I'm just being happy I can power the thing and use it wirelessly. It will be pain in the a** when I'll need to upgrade bootloader.

jxl69 said:
Nope haven't bothered. Probably I would need to do some soldering. I'm just being happy I can power the thing and use it wirelessly. It will be pain in the a** when I'll need to upgrade bootloader.
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ok, was looking to buy a new charging board and change it allt but the price was 80 USD and a used nexus cost about 110USD so didnt see the point there. problably going to buy another one to have in the car and then use this on att home for surfing or something.
thx for fast awnser

I use wireless charging. Doesn't solve fastboot and other issues but at least you can use it.