you have the odin the recovery to your phone...
idt he samsung behold 2 is capable of fast boot or even has it.
Even I flash new rom vie odin.It doesn`t work.please look at this
Download Start...
<0> Create File...
<1> StartThread Detected : 1
<2> StartThread Detected : 0
<3> StartThread Detected : 0
<4> StartThread Detected : 0
<5> StartThread Detected : 0
<6> StartThread Detected : 0
<7> StartThread Detected : 0
<8> StartThread Detected : 0
<1> setup connection...
<1> odin mode.. check plcatform verification.
<1> START!!!
<1> check download environment.
<1> amss download..
<1> 1/3 Finished.
<1> kernel download..
<1> 2/3 Finished.
<1> system download..
<1> 3/3 Finished.
<1> reset pda..
<0> Started Timer
<1> Close serial port and wait until rebooting.
After that,my phone reboot,but it stop at first logo
[samsung]
[ behold2]
it cannot boot (I flash many rom,nothing change,still stop at first logo)