Develop Bugs

[Q]GN is not supported by OTG connection USB flash drive

Why I use OTG after you connect the USB flash drive, USB disk could not be found in the phone directory?

USB Host (or USB OTG, On The GO) is a documented feature in the manual but it does not appear to work. Someone figured out how to eneable it if you are rooted but I can't find the thread.

USB Host is working with stock 4.0.2. However, this is only for things such as mice and keyboards. If you want to access USB storage, root your device and install Stickmount from the market.

I can confirm that my GN GSM with the stock 4.0.1 rom doesn't recognize my keyboard and mouse using an OTG USB cable. A bluetooth keyboard does work however.

you need a true OTG cable, root and stickroot from the market. Also sometimes a custom rom, but usually not.
This is my setup and i've tested a usb microsd reader, 4 and 8gb flash drives, 2 mice and a usb keyboard.

Like I said, USB host was enabled by Google in 4.0.2. If you have an earlier firmware version, it won't work without a custom kernel.
Google did not however provide the ability to access USB mass storage. To do this you'll have to root your Nexus and install Stickmount.

USB on the go Problem

Bought an USB OTG cable few weeks ago and it just arrived today.
When connected to the GS3 I have (T999V), it says "security policy use of external SD card".
When I go into MYfile app and search for USB OTG, nothing appeared (a flash drive is attached with text documents and other various files)
The question, isn't the Galaxy S3 suppose to recognize this USB OTG? and there's no need to install any app to help it recognize it.
Running Team Sonic R3 Custom ROM right now.
Can anyone help me on this problem?
Because the USB OTG is one the the features that intrigued me buying the GS3!

My usb otg cable is on the way from China, so don't have hands on experience. But in ES file manager, if you navigate to /mnt/ folder you can see provision to support upto 6 usb drives as you can see in the screenshot. So try navigating to /mnt and see if you can access your usb drives from there.
Sent from my SGH-T999

Well, it is not completely unusable for me.
After I install the "USB Mass storage watcher" from the play store and mount the OTG it became usuable.
But sometimes it crashes. Also, isn't the device itself already compatible with the OTG itself? Why should I need to install the app in order from me to use the OTG? (these are the two main question here).
Also, the app isn't fully stable, it crashes sometimes and it is very hard to use. (everytime you unplug your USB device you have to mount it again)
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p.s: I have tried to look in the ES file Manager and I did see 6 USB dirve and 1 usbOTG option. But before I use the app to mount the OTG device on my phone none of the options works. When I mount the device through the program, I can browse the files on my USB drive in the "usbOTG" option.
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Mine works fine I bought a $3 otg cable from Amazon i have the t-mobile S3 stock rooted
Sent from my SGH-T999 using xda premium

william90130 said:
Bought an USB OTG cable few weeks ago and it just arrived today.
When connected to the GS3 I have (T999V), it says "security policy use of external SD card".
When I go into MYfile app and search for USB OTG, nothing appeared (a flash drive is attached with text documents and other various files)
The question, isn't the Galaxy S3 suppose to recognize this USB OTG? and there's no need to install any app to help it recognize it.
Running Team Sonic R3 Custom ROM right now.
Can anyone help me on this problem?
Because the USB OTG is one the the features that intrigued me buying the GS3!
Click to expand...
Click to collapse
maybe try this app and see if it works? https://play.google.com/store/apps/...wsMSwxLDMsImV1LmNoYWluZmlyZS5zdGlja21vdW50Il0.
i dont have this adapter but i will be getting one soon.

Phone's stuck in TWRP, Won't connnect to PC to transfer files.

Somehow I ended up flashing TWRP. Now my phone can only get into this and not original android. My phone also won't connect to the computer, windows tries to install the drivers but they never install successfully. Any help is very very appreciated.

jjallday13 said:
Somehow I ended up flashing TWRP. Now my phone can only get into this and not original android. My phone also won't connect to the computer, windows tries to install the drivers but they never install successfully. Any help is very very appreciated.
Click to expand...
Click to collapse
Try going to mount and storage and click something that goes around USB mount/usb storage. I think its mount usb AFAIK, this should start USB MASS STORAGE mode and youll be able to transfer files from your computer.

trippinz said:
Try going to mount and storage and click something that goes around USB mount/usb storage. I think its mount usb AFAIK, this should start USB MASS STORAGE mode and youll be able to transfer files from your computer.
Click to expand...
Click to collapse
+1
But if like me when you try this, TWRP fails to mount.
Only other work around I have found is USB OTG + Memory stick with ROM on it.
Plug in switch to "Use External Storage"
Find ROM
Flash.

I'm unable to mount in the latest version. But if you flash version 2.4.3.0 you should be able to mount again.
Sent from My Calculator!

[Q] Cannot mount SD Card via USB OTG and stickmount (root) - works on Galaxy S2

Hi,
I recently bought a USB OTG cable and an "Integral USB 2.0 Single Slot SD Reader " so that I could use my Nexus 7 to view photos from my camera.
At first I tried using Nexus Media Importer to view files on the device, but this did not work. I have successfully been able to use this application to mount a USB thumb drive via the USB OTG cable.
I then rooted the device and installed stickmount. This did not seem to work either and there were no signs that the device was recognised by the tablet (the red light did not come on). I configured stickmount in SuperSU so that it has root access. I did not copy any data or apps back onto the device after unlocking it, and I am using the stock android 4.4.2 ROM.
I tried mounting the SD card using the card reader and USB OTG cable with my Galaxy S2 running Cyanogenmod. This mounted as soon as I plugged it in so I doubt there is a problem with any of the components.
I have tried mounting the drive both with USB debugging enabled and disabled. Is there anything else that I can try?
Thanks,
Ciaran

Reboot your device while keeping the OTG cable connected.
Sent from my Nexus 7 using Tapatalk

gnotelover97 said:
Reboot your device while keeping the OTG cable connected.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Thanks, this does allow the drive to mount successfully; however, if I remove the drive then re-insert it it does not remount, nor does it show up in Stickmount. Is there a way to remount the drive on-demand - just like my Galaxy S2?

You can press the 'thanks' button if it helped. Till now, I have not come across any such method to mount the OTG cable on demand. It's a cheap ploy by Google and Asus that they do not allow native OTG support on the Nexus 7 2013. Just to promote the cloud services. Mounting OTG cable is so easy on the Moto G and Samsung devices. It's a given these days.
Sent from my Nexus 7 using Tapatalk

ciaranhearne said:
Hi,
I recently bought a USB OTG cable and an "Integral USB 2.0 Single Slot SD Reader " so that I could use my Nexus 7 to view photos from my camera.
At first I tried using Nexus Media Importer to view files on the device, but this did not work. I have successfully been able to use this application to mount a USB thumb drive via the USB OTG cable.
I then rooted the device and installed stickmount. This did not seem to work either and there were no signs that the device was recognised by the tablet (the red light did not come on). I configured stickmount in SuperSU so that it has root access. I did not copy any data or apps back onto the device after unlocking it, and I am using the stock android 4.4.2 ROM.
I tried mounting the SD card using the card reader and USB OTG cable with my Galaxy S2 running Cyanogenmod. This mounted as soon as I plugged it in so I doubt there is a problem with any of the components.
I have tried mounting the drive both with USB debugging enabled and disabled. Is there anything else that I can try?
Thanks,
Ciaran
Click to expand...
Click to collapse
It's gotta be the connections your using. Either the Integral SD Card Reader, or the OTG cable you are using. I never have any issues using stickmount with my Meenova MicroSD card reader. Have you tried other adapters?

charesa39 said:
It's gotta be the connections your using. Either the Integral SD Card Reader, or the OTG cable you are using. I never have any issues using stickmount with my Meenova MicroSD card reader. Have you tried other adapters?
Click to expand...
Click to collapse
^This, stickmount mounts my meenova as well as my OTG+USB thumbdrives on demand, no issues whatsoever, no need to reboot or anything, it just automounts and it's ready to go.

Using usb external drive and ADB at the same time

Hello,
I have been able to successfully connect an external flash drive to my Nexus5x, using an USB-C OTG cable.
I was wondering if there exists any sort of Y-cable I could use to connect BOTH an external memory AND my pc (to use ADB) at the same time.
In particular I would need this to work in the TWRP recovery.
Any idea/suggestion?
Thank you.