wau seem alot of ppl facing the same problem as i do. i think i should try to send bck to Singtel to fix or replace. coz i reali cant stand with tis wifi issue. some said is related to software fw2.2 but any1 try to down grade and find out can work or not ???

i just wonder all those wifi problem is related to software ??? last time when i upgrade to 2.2 i got problem with my wifi, and send bck to singtel and replace a new one but the software version is 2.0 i do not dare to upgrade to 2.1 or 2.2, pls advice is it safe to upgrade and is there any proper way to upgrade the software