cant find the network...

[bwqipzbpd]

I left my tytn ii for couple of mouths but picked it up and used it again recently. something strange happened, I tried to insert two different sim card but both cannot find the network...even hard resolve the system

p.s my tytn ii was sim unlocked and I am the 1st owner. anyone knows how to resolve the problem? thanks.

[Rudegar]

I would try to flash it with a rom and a radio rom to see if
the roms somehow got corrupt