Bluetooth not work with official img

roMoon

rk3288 burned with  official Firefly-RK3288_Ubuntu14.04_201512031755.img
startup log shows that bluetooth initializaiton fail:
* Starting bluetooth initialization[fail]

I can select the bluetooth manager to open bluetooth, in the desktop menu, but still not work.
uart log shows that bluetooth is turning off automatically:
[   48.977937] [BT_RFKILL]: ENABLE UART_RTS
[   49.086227] [BT_RFKILL]: DISABLE UART_RTS
[   49.090283] [BT_RFKILL]: bt turn on power
[   51.319665] [BT_RFKILL]: bt shut off power
[   55.462317] [BT_RFKILL]: bt shut off power
[   56.072678] [BT_RFKILL]: ENABLE UART_RTS
[   56.180912] [BT_RFKILL]: DISABLE UART_RTS
[   56.184995] [BT_RFKILL]: bt turn on power
[   58.424441] [BT_RFKILL]: bt shut off power

Any sort of help will be appreciated, thanks.