hiya...i have had my n900 for about 4-6 months and had 3 handset replacements...i didnt think u could get same problems on different handsets....my network service told me it was sim card related so changed sim but still having problems like...screen freezing, black screen, cutting off calls, people not hearing me on a call, not reconising my hearphone for the handset....can someone please help me...

Hi!

What network are you on? what probs are happening on current handset, have you latest firmware version installed?

im on vodafone and phone software is up to date and whats this firmware??