w610i hasn't find any network

[tonywong41]

flash the firmware again
good luck!!

[riders4sia]

try to repair EROM with this
REPAIRING EROM GUIDES for most sonyericsson phones - Top Sony Forums

[philzfog]

there are only 4 resons that a phone will have no signal 1, barred hand set ,2 sec untis are damged from cross flashing 3 faulty sim card, 4 hardwere fault ie sim reader is broken

[kelvin2009]

try flash again!!