Tks for you help!
I can tone search the tone for example David Guildmore, then I can play the the guitar by The FX-100, David Guildmore sound can use.
Also many many tone can. (Hotel California, still got the blues...............)
but I can not save it to the Hardware, The Amplfi (FX-100 85) text from the front page of AmplifiRemote is grey colour and it said that ( None ), Bluetooth is connected. LED is solid Blue.
I borrow my friend's iPhone, everything is OK. I use another android phone, same problem. I update 2.1 firmware again and do the factory reset, calibate....., still not work by android.
My phone :
Bluetooth 4.0 LE