[CrackBerry Question]

my blackberry 9850 has been in network block mode how can i use other network

[raino]

If by "network block" you mean the phone is locked to a carrier, then you will need to contact the carrier the phone is locked to, or pay an unlock service to obtain the unlock code.

If you mean there's some sort of a block that's preventing the use of the phone even on the native carrier, then you definitely need to talk to them.