noo network or carrier after jailbreaking 4.2.1

[biggebruv]

hello
long time reader but decided to buy second hand iphone4 and am stuck can anybody help me please?

i JBed my iphone 4 ver 4.2.1/baseband-03.10.01
jbed with green posion and redsn0w cydia install and that all whent fine without a hitch.

its just theres no network or carrier when sim is in it says no service or has no bars

in about it has
Network Not Available
Carrier Not Available

rang apple they said its definatly an on o2 phone
rang o2 and they said its not blacklisted

sims fine works in other phone. sim slots not broke
i tried airplane on/off, resetting, restoring and doing it again
but its still the same

anybody know what i can do

[XFaega]

First do a fresh restore. Then only use GreenPosi0n. Download the latest version and you'll be good to go. I used GreenPosi0n and I haven't had a single problem. Good Luck

[biggebruv]

but when i use just green posion
it leaves me hanging on the iphones activation page with usb logo

see i my iphone is not letting me past the activation page on itunes it says
"THE SIM IN THIS IPHONE DOES NOT APPEAR TO BE SUPORTED"

is there anything else i can try???

is my iphone a factory unlocked model?

MC603B

[Stray]

Does it work before it's jailbroken?

[biggebruv]

Does it work before it's jailbroken?

when i got the phone it had a list of carriers
and network said o2
but i put my micro sim in and it said sim does not appear to be suported

so thats when i JBed it

and now theres no carrier settings and no network

just want to ask
would it make a difference
between

ACTIVATEING WITH ITUNES
or
HACTIVATEING WITH GREEN POSION THEN RED SNOW!

so basicly if i got phonebook sim and activated it through itunes would it make any difference???

or would it be the same problem im having now????

[bondkt]

greenp0sion does not hacktivate. if your *officially* supported restore, use gp, it should work great (if not get a new micro sim, then call apple and say the phone wont read the card)

if your need an *unlock*, restore, greenp0sion, then redsn0w to hacktivate etc etc...

friend with offical would work too

when i got the phone it had a list of carriers
and network said o2
but i put my micro sim in and it said sim does not appear to be suported

so thats when i JBed it

and now theres no carrier settings and no network

just want to ask
would it make a difference
between

ACTIVATEING WITH ITUNES
or
HACTIVATEING WITH GREEN POSION THEN RED SNOW!

so basicly if i got phonebook sim and activated it through itunes would it make any difference???

or would it be the same problem im having now????