Develop Bugs

OTG through a HUB

Hey! So i managed my S2 to work with an OTG adapter. Now it recognizes Flash drives, USB mouse and keyboard as well. My problem is though, that i'd want to use both the mouse and the keyboard simultaneously, and later on my tablet as well.
I've got a USB hub which was pretty cheap i guess,
ht tp://itmedia.sk/item-images/other-usb_omega_hub4portSTARpowercapable/it6818_2.jpeg?nc=032
When i connect it to the OTG adapter it lights up, and if there's a flash drive attached to it when i plug it in, the phone recognizes the flashdrive without problem. As soon as i plug in a second flash drive, the light goes off from the HUB and both of the sticks get unrecognized. Also, the mouse nor the keyboard works through the HUB somehow..
I need to buy a specific hub with OTG support or a power hub perhaps? Could anyone help in this? I looked over google and stuff but people seemed to say different stuff at almost every site.. Thanks!!
My Galaxy S has stock 4.0.3 rom with the Syjah S2 4.1.4 Kernel

Phones doesn't support usb hubs.

przemcio510 said:
Phones doesn't support usb hubs.
Click to expand...
Click to collapse
Oh well that's quite interesting. Then you're saying this piece of video could be fake perhaps?
Since i can post links yet, search for this on youtube: USB HUB Support On GALAXY S2
Check the very first video.

I'm convinced that the every phone can handle only one device connected at the same time.

przemcio510 said:
I'm convinced that the every phone can handle only one device connected at the same time.
Click to expand...
Click to collapse
Well, it surely doesn't seem that way, that's why i was asking, since it's possible.

Weird.... i got sgs2 and 4-port usb hub and when i connect 2 pendrives to hub and hub to phone everything works good (i see UsbDriveA and UsbDriveB). If your hub have dc input you can try connecting power supply to this hub. Maybe this hub isn't compatibile with your phone.

Mouse on Arc

I bought this usb adapter with have on one side micro USB and on other standard USB and I tried to connect PC mouse with my phone but the phone didnt reconize that i connect mouse with it.
Can you tell me what to do?

Let me get this right maybe I read wrong are you trying to connect phone to your pc to either transfer files flash roms etc or are you trying to connect a computers mouse to your phone? If its the second one as far as I know you can't connect a mouse to a phone with a usb, phones don't have the software or drivers to do this and to be honest why would you want to.You can on the other hand use your phone over wifi as a mouse to control your pc or even Xbox with the right software many apps in the market for this.

i want to connect pc mouse with my phone and it IS possible. if u dont belive check youtube or google it. Its possible to connect keyboard and controller too.

tallman43 said:
Let me get this right maybe I read wrong are you trying to connect phone to your pc to either transfer files flash roms etc or are you trying to connect a computers mouse to your phone? If its the second one as far as I know you can't connect a mouse to a phone with a usb, phones don't have the software or drivers to do this and to be honest why would you want to.You can on the other hand use your phone over wifi as a mouse to control your pc or even Xbox with the right software many apps in the market for this.
Click to expand...
Click to collapse
It is possible. It is called USB On-The-Go.
OP: Does mouse appear on the screen? What firmware and kernel are you using?

im using stock. i dont see and mouse cursor cuz it dont detect that mouse is connected. For USB OTG u need rooted phone and i didnt root it yet. And i noticed that you can burn phones motherboard if u using this for i dont know how long.

hyper200 said:
i want to connect pc mouse with my phone and it IS possible. if u dont belive check youtube or google it. Its possible to connect keyboard and controller too.
Click to expand...
Click to collapse
Someguyfromhell said:
It is possible. It is called USB On-The-Go.
Sorry guys! Well thats why I love XDA learn something new everyday:good:
Click to expand...
Click to collapse

hyper200 said:
im using stock. i dont see and mouse cursor cuz it dont detect that mouse is connected. For USB OTG u need rooted phone and i didnt root it yet. And i noticed that you can burn phones motherboard if u using this for i dont know how long.
Click to expand...
Click to collapse
Incorrect, incorrect.
USB OTG does not require rooted phone. USB OTG is a fully implemented script for SE devices, as it has official support from Sony aswell (*cough* LiveDock *cough*).
Also, mouse only requires minimum amount of power, so there is very small chance of burning your SoC (system-on-chip). If you want to use external HDD, then it would be whole other story, but mouse shouldn't be a problem at all.

AW: Mouse on Arc
My HP Mouse is working without problems with my arc.
Gesendet von meinem Xperia Arc S mit Tapatalk 2

so do i have to unlock bootloader or somthing like that?

hyper200 said:
so do i have to unlock bootloader or somthing like that?
Click to expand...
Click to collapse
No. I have two devices, arc s and Neo. Every mouse I tested work, including apple, dell, HP etc. It DOES NOT matter if it is rooted or bootloader unlocked. Sounds like a faulty USB otg cable to me. Or use a different mouse.
If all is working well, you should end up with a mouse+keyboard combo like mine. Thumbdrives require root.
Sent from my soon-to-be bricked Neo V

than i think my usb otg is broken...

Help , need to get OTG and MHL working simultaneously !

Hi guys,
My galaxy nexus screen has been cracked and it does not respond in 75% of the screen.
I bought a MHL to HDMI convertor on amazon and luckily got the phone UI to show up on my TV
Now since the touchscreen won't work , I need to connect a keyboard or mouse via USB OTG and use it for navigation.
Problem is the Galaxy Nexus has only a single microUSB/MHL port combined into one.
I have no idea how to split the output from the phone to connect to a USB OTG cable and MHL to HDMI adapter simultaneously !
Any help will be appreciated,
The phone is not rooted AFAIK , but may be I'm not sure. It was running Android 4.1 JellyBean when I dropped it on the floor
The phone does show up on my Windows PC and I have copied the photos off it. But I still want to copy contacts and SMS messages.

You tried just using something like Android Screencast from the PC (USB debugging is needed)
Also, some MHL adapters have a USB port in them, for power. Have you tried getting a crude micro USB splitter? Like this one? http://www.replacebase.co.uk/micro-usb-female-to-2-x-micro-usb-male-splitter-2392-p.asp#.URk59JGYOBs
Not guaranteed that would work though. Also, a quick google of what you want brings up some others with the same issue, have you tried to see if any of them have succeeded?

Quinny899 said:
You tried just using something like Android Screencast from the PC (USB debugging is needed)
Also, some MHL adapters have a USB port in them, for power. Have you tried getting a crude micro USB splitter? Like this one? http://www.replacebase.co.uk/micro-usb-female-to-2-x-micro-usb-male-splitter-2392-p.asp#.URk59JGYOBs
Not guaranteed that would work though. Also, a quick google of what you want brings up some others with the same issue, have you tried to see if any of them have succeeded?
Click to expand...
Click to collapse
Good news
I had a spare galaxy nexus in the office and I gently took the screws of both the devices , and just swapped the displays so that I could quickly turn on usb debugging , backup essential stuff and also turn on bluetooth.
Thanks to some assembly videos on youtube ! will share some pics soon

OTG

How do I make it work? I connected a wireless keyboard to my N7, but I dunno how to make it work. :c

Must be rooted first. Then it will work.

Malvarose said:
How do I make it work? I connected a wireless keyboard to my N7, but I dunno how to make it work. :c
Click to expand...
Click to collapse
danvee said:
Must be rooted first. Then it will work.
Click to expand...
Click to collapse
1. For an OTG, you just need the cable [micro hmdi male to usb female] and a usb device, like an external hard drive, mouse, etc.
2. If its was a wireless keyboard, you just need to have bluetooth on an pair correctly, i'd try to re-pair the devices.

Lenovo A850+ OTG USB cable

Hello, i got cheap OTG USB cable and try to connect two different flash drives, keyboard and mouse without any success. Is there any option to start OTG function. on Lenovo A850+ ??. I try USB OTG Help and Stick Mount apps, but dosent help. I read that Lenovo A850+ support OTG. Thanks in advance for help.

If your tablet supports OTG USB, it should start automatically. At least that's how it is with Galaxy and Nexus tablets. I know that Lenovo usually has their own GUI on top of Android so wonder if they use some custom driver or need something to be enabled in system setting? You better off searching XDA or AndroidForums for your specific tablet to post in that section.
Also, make sure you have a working cable. Can you try it with another tablet or the phone, just to be sure?

vectron said:
If your tablet supports OTG USB, it should start automatically. At least that's how it is with Galaxy and Nexus tablets. I know that Lenovo usually has their own GUI on top of Android so wonder if they use some custom driver or need something to be enabled in system setting? You better off searching XDA or AndroidForums for your specific tablet to post in that section.
Also, make sure you have a working cable. Can you try it with another tablet or the phone, just to be sure?
Click to expand...
Click to collapse
Thanks for answer. There is no option about OTG in system setings. Today i will try with other cable.

Any suggestion what to do ? Thanks for Help