A one-stop no-pain solution for enabling and using USB OTG mass storage on your android phone!
What is USB OTG?
It stands for USB On-the-Go!
"It is a specification that allows USB devices such as digital audio
players or mobile phones to act as a host allowing a USB flash drive,
mouse, or keyboard to be attached." -
Wikipedia
The stock kernel allows Mouse & Keyboard, but USB storage is missing..
Features:
- Stock and custom kernels supported
- Mount and Unmount drive with a single click
- No Ads!
- Full NTFS support built-in!! (from v3.0.3)
- Automatically start on device connect (intent broadcast) (from v3.0.3)
- Notification when drives mounted! (from v3.0.3)
- One click access to unmount (from v3.0.3)
- Option to enable UTF-8 if kernel support (from v4)
- Automatically open explorer after drive mounted (from v3.0.7)
- One click debugging and feedback (in app)
What phones are supported?
Sony Ericsson Xperia Neo, Neo V, Ray, Arc and the Arc S! Modules for stock kernel on second post.
If you get it to work on other devices, please PM me and I will add them to the list.
Please note that this app is an "Helper" app.. it will not magically make your kernel support USB Mass storage 
What are the requirements?
- root (su binary)
- busybox
- USB OTG cable
Touble-shooting!:
1. Settings -> "In-app Busybox preferred" -> Uncheck. Then try again.
If still not working:
1. Settings -> Debugging mode -> Check.
2. Do the steps that fail.
3. Send me debugging data (in the app itself)
Credits:
DooMLoRD @xda-developers.com - For the original idea and implementation.
shardul_seth @xda-developers.com - For creating this app.
