1)i have order 1 iphone from us, so how do i check the serial number? is it just key in *301*12345*# then dial ?? how to identify whether it is 1.1.4 or else?

- which version also works, i got mine is 1.1.2 but restored to 1.1.4. no worry.

2)after that i can just use ziphone 2.5c " DO IT ALL " button and go to advance features to untick the "downgrade bootloader " to unlock the phone.

- Try to DO IT ALL 1st, if not, only try other method. no worry, your phone can be restored as many times as you want.

3) Do i need to insert the sim card b4 unlock ?

- i put in SIM card after unlocked.

4) do i need to install bsd subsystem b4 install app installer?

- see my guide here, step by step - www.lessthanten.net

5) how do i install the App installer?

- the app installer is there by default.

6) How do i install my donwloaded software using App Installer?

- you actually install the software directly from iPhone via Installer. no need download 1st.

it should work

*pssssssss ur gf very CHUN