I read your posts and think what you wnet through can help me.
I have an Arduino(1.0.5 IDE) Mega ADK board and an Android 4.1.2 Sony Xperia Go with a working wifi connection to the internet.
I'm following the book "Professional AOA Programming with Arduino"... and all is fine(uploading sketches, Blinking Arduino's LED) until ... the Temperature sensor project, where the first connection with an Android is supposed to be established. The connection is through an usb cable.
The Android detects the Arduino but displays the message
"TITLE: Temperature Sensor
No installed applications work with this USB accessory. Learn more about this accessory athttp://media.wiley.com/product_ancillary/66/11184547/DOWNLOAD/t.apk"
So nothing happens. Though it is clear that the Arduino has transferred information, namely the Title and the referenced url address.
I thought that perhaps the t.apk could have a problem so I installed it on the mobile through the PC, connected the Arduino, the phone immediatly asked if I wanted to use the Temperature sensor app and proceeded to display the temperatures received from the Arduino!
I've also tried the USB Host version2 libraries and the sketch (https://github.com/felis/USB_Host_Shield_2.0/blob/master/examples/adk/ArduinoBlinkLED/ArduinoBlinkLED.ino
but in this case connecting the Android phone gives me no action at all!
I read that some Android phones do not connect to the Arduino Mega ADK, could this be my case, is this what is meant?
Am I to buy a new Android, or is there still hope for my Sony Xperia?
I hope there is hope!