Develop Bugs

USB OTG issues

I have a tmobile sgs3 with a stock rom (it was rooted, but latest update seems to have killed that), and after seeing the androidNZ connectivity demo I decided to play around with the usb otg. I am having some problems however. I have tried with 2 external hdds and a thumb drive and all three light up, but do nothing to the phone. I get no pop ups, and when I use astro to check the external usb drives, they all show up empty.
What am I missing?
Thank you!

I do not have that issue, but did you check USB debugging mode in Developer options?
I haven't tried to connect to an external HD, but USB Flash card works fine, as well as USB keyboard & mouse.

I've bought a $2 USB adapter for my phone and I have been able to mount a pendrive or a HD (when it is plugged to an external power source).
But when I try to connect a Mouse, Keyboard, Gamepad, etc., nothing happens. Not even an error message.
I'm using an official Android 4.03 rooted ROM (Claro Argentina).
Does anyone know what could be happening? The problem is my ROM (and it's drivers)? Is my USB otg adapter that is not compatible with mouse and keyboard?
I attach a screenshot of my system
img.tapatalk.com/bef728f6-6c26-6964.jpg
Thanks!
Sent from my GT-I9100 using xda app-developers app

[Help] OTG cable problem

Hello, i have bought a OTG adaptor but when i connect a USB pen to my Sony Xperia S it doesn't do anything.
I have also tested:
- USB pen FAT32
- USB pen NTFS
I know that this adaptor is working because the store owner tested it on a tablet and it worked.
Stange thing is that i tried to connect to a zte blade, Galaxy Gios and nexus 7 and it didn't work as well....
However when i connect it to the computer the adaptor works...
Stock .55
No root
Can someone advise me?
Thanks

Root your phone and download USB OTG Helper from the Play Store.

SxperiaS said:
Hello, i have bought a OTG adaptor but when i connect a USB pen to my Sony Xperia S it doesn't do anything.
Click to expand...
Click to collapse
I have many FAT32 USB flash drives that work fine with my XPERIA S no problems.
I have not confirmed this myself, but it is possible the amps provided by the Sony XPERIA S(LT26i) could be as low as 100mA.[citation needed]
Can't find any documented specs for XPERIA S and USB power supplied and/or USB flash drive which also has a known documented amp draw for reference.
I'd really quite like to know what amps the XPERIA S USB port provides.
I have a USB thumb drive that doesn't work on my XPERIA S namely the HP v165w 8GB (FAT32 formatted)
It just comes up with a big red warning triangle saying, "USB Power Consumption error"
However the USB thumb drive HP c330w 8GB does work (NTFS formatted)
Many other SanDIsk FAT32 formatted USB thumb drives also work fine. Namely the SanDisk USB 2.0 Cruzer Facet 32GB
I have downloaded Paragon exFAT, NTFS & HFS+ which allows me to successfully mount NTFS formatted flash drives on my root'd XPERIA S.
My 'Desktop' FV-1 Android box with three USB ports/HDMI etc, mounts anything and everything, including the HP v165w 8GB USB thumb drive. So it just means no two Android devices are equal in design and power.

it should work anyway? I've seen a few shots and youtube movies where the USB on-the-go was working on an XS!

SxperiaS said:
Hello, i have bought a OTG adaptor but when i connect a USB pen to my Sony Xperia S it doesn't do anything.
I have also tested:
- USB pen FAT32
- USB pen NTFS
I know that this adaptor is working because the store owner tested it on a tablet and it worked.
Stange thing is that i tried to connect to a zte blade, Galaxy Gios and nexus 7 and it didn't work as well....
However when i connect it to the computer the adaptor works...
Stock .55
No root
Can someone advise me?
Thanks
Click to expand...
Click to collapse
连接U盘需要安装一个USB存储管理器的软件(此软件需要root权限和busybox).插入OTG和优盘之后可以看到优盘的灯亮了.之后再点击连接.
这样就可以在SDcard\usbStorage 里看到优盘里的文件.
你也可以连接一个集线器.这样可以连接鼠标键盘之类的.如果你要连接功耗比较大的设备,这样就需要一个带电源的集线器.如果动手能力比较强的话,还可以直接在OTG线上剥开接上电源.
希望有懂中文的....!!!!Hope someone will Chinese!!!

Connecting U disk need to install a USB storage management software (the software requires root permissions and busybox). Insert OTG and USB flash drive's lights. Then click connect.
The USB file so that you can in SDcard \ usbStorage see.
You can also connect a hub so you can connect a mouse and keyboard like if you want to connect to a large power equipment, so that you need a powered hub. Strong practical ability, but also can directly plug in the power in OTG online peel.
this is what google translates for me! pretty weird to read like this. but maybe we can figure it out?!

SNYXPR said:
it should work anyway? I've seen a few shots and youtube movies where the USB on-the-go was working on an XS!
Click to expand...
Click to collapse
In my honest option, I agree with SNYXPR, there should be no requirement for additional software on a standard build XPERIA S(LT26i) when using "supported" FAT32 formatted USB storage.
If the FAT32 formatted USB flash drive you have attached to the XPERIA S meets the power requirements you should be fine.
No software I know of is going to boost the power supplied by the MicroUSB port and at best, any application for USB storage is only able to support additional drive formats like NTFS etc.
I've had/have USB flash drives, Logitech Unifying Mouse/Keyboard attached without problems.
I've got a Galaxy Note Connection kit Model: DR03-S2 and that works fine and I'm able to read/write SD cards, MicroSD cards and USB flash drives using it without problems(one attached device in use at any one time).
If you go to the next step and use a powered USB hub, then a wider array of devices can be used with the XPERIA S as the USB hub is providing the power to connect the device. This includes USB printers and FAT32 formatted USB 80GB plus HDD (both IDE and SATA) etc. Also all those FAT32 formatted storage devices that said the XPERIA S did not meet the power requirement work too.
Remember the XPERIA S only support FAT32 formatted storage by default(natively).
As part of my desktop setup I have the following connection.
Sony DK10 dock plugged into a Aten USB switch which is connected to a powered USB Targus 7 port Hub.
This gives me access to USB mouse/keyboard, USB flash drives or USB HDD of any size, printer, SD card reader on my DELL U2410 monitor and etc.
Then it's just a button press to (USB)switch back to my Notebook, Desktop PC and any other device connected as part of my desktop environment.

Thank you for the replies, i think root is not required since i have seen a vídeo made by XperiaBlog that just connects a USB pen drive to Xperia S and it just works. I have tried a Kignston 8 GB and it doesn't connect, not event to nexus 7 ...

Second USB device

I tried connecting a USB keyboard using an USB OTG cable, but I didn't get it to work. The other USB port is in use by my external harddrive.
Is there a possibility to make the keyboard work?
Can immagine more people want to add a second USB device to their OUYA...

Dropshots said:
I tried connecting a USB keyboard using an USB OTG cable, but I didn't get it to work. The other USB port is in use by my external harddrive.
Is there a possibility to make the keyboard work?
Can immagine more people want to add a second USB device to their OUYA...
Click to expand...
Click to collapse
You'll need to buy a USB HUB (Get a powered one to future proof all your USB needs, you can get a USB 2.0 Hub pretty cheap). This will allow you to hook up at least 3 USB's to the OUYA. The Micro USB won't work for things such as hard drives or HID devices.
In the future, please use the search function before posting as this has been talked about in many other posts.

Dropshots said:
I tried connecting a USB keyboard using an USB OTG cable, but I didn't get it to work. The other USB port is in use by my external harddrive.
Is there a possibility to make the keyboard work?
Can immagine more people want to add a second USB device to their OUYA...
Click to expand...
Click to collapse
I have a 4-port hub and it works fine connecting 1 storage and 3 other usb devices

I had this issue where only one harddrive could be used and If you have a harddrive with 2 partitions ouya wont mount it. Luckily I found an app called usbotghelper which does all the above I mentioned plus read and write and ext3 support. I wish it would get submitted to the ouya store so I could use the paid version that will mount on startup.

OTG not working

So Ive run into a strange problem. I was watching a movie last night on my nexus, the file was on my usb drive connected via otg to the nexus. Today I try to do the same and I get no reaction from Stickmount when plugging in the drive. I have no problems charging or connecting the tablet to my PC, and the drive works fine both connecting to the PC and to my smartphone with stickmount as well. I also tried DLing an app called OTG Troubleshooter to see if that would help me. When connecting the drive it tells me that OTG is detected, but that "Mass storage USB device is not detected in linux/android". Does anyone know what the problem is?
Thanks in advance

Nexus Media Importer
I had a similar problem with the device not recognizing the OTG cable, it went away after I installed the Nexus Media Importer.

Cazteclo said:
I had a similar problem with the device not recognizing the OTG cable, it went away after I installed the Nexus Media Importer.
Click to expand...
Click to collapse
I tried with Nexus Media Importer as well, no success there either, it doesnt detect the drive. Thanks for the tip anyway

mine does the same thing with both stickmount and nexus media importer, I even tried 3 different OTG cables and flashdrives and get the same results

gmfirebird said:
mine does the same thing with both stickmount and nexus media importer, I even tried 3 different OTG cables and flashdrives and get the same results
Click to expand...
Click to collapse
Same here, maybe somethings wrong with the nexus' usb port?

paeminem said:
Same here, maybe somethings wrong with the nexus' usb port?
Click to expand...
Click to collapse
mine usually recognizes the cable, it is the thumb drive attached to it that it usually dosent see

im no expert but i was having issues with a physical keyboard through otg
on stock rom it times out
im on cm12 may 30 2015 with elementalx kernel
after flashing i plugged in the otg with the wireless keyboard reciever
nothing. worse than stock.
i downloaded all the usb otg helpers etc what not
in conclusion
i somehow managed to get
s3c usb host drivers for android
installed them from some site that i cant remember anymore -- really dumb --. seemed sketchy but had nothing to lose
altought now i can type still getting the same crap problmes i had with stock but not as bad. time s out

gmfirebird said:
mine usually recognizes the cable, it is the thumb drive attached to it that it usually dosent see
Click to expand...
Click to collapse
I have the same problem and have just tested that connecting a mouse or keyboard to the otg works without problems, what doesnt work is a flash drive. ( I have tried different flash drives to no success)
Does anyone know what the problem might be?

paeminem said:
I have the same problem and have just tested that connecting a mouse or keyboard to the otg works without problems, what doesnt work is a flash drive. ( I have tried different flash drives to no success)
Does anyone know what the problem might be?
Click to expand...
Click to collapse
I uninstalled and then reinstalled it again and now it is working again. I think it might have been slow to update

Maybe you guys are using a Kernel with OTG+Charge option? if yes the problem maybe that you have to connect the AC charger and USB device together. If you don't need the OTG+charge you should deactivate that function.

Does this phone support OTG memory?

Flash drives and SD-usb adapters, if I connect one will it recognize it?

MGREX said:
Flash drives and SD-usb adapters, if I connect one will it recognize it?
Click to expand...
Click to collapse
Yes but first u need to enable OTG connection option in settings>additional settings>OTG connection

I don't know why, but I couldn't get it to work on my Realme X for some reason (even after turning on OTG connection option on settings). It works fine on my friend's Galaxy A7.