Sony Ericsson live wifi problem after updating to ICS fixed

After the update of sony ericsson live with walkman gingerbread to icecreamsandwich(ics).we found the main problem was with Wifi after update by using Sony PC Companion.We have tried different wifi applications and we thought of getting different roms but we didnt get good type of rom to add in it.So, at last we tried updating by using Update service and the problem with wifi was solved..u also try it if it helps before updating to ICS from gingerbread...click here to search update service for sony from google search..the mobile becomes very bit slow...