[sanjayseal]

I was using E63, chat was working perfect. Purchased an E5, where chat can not be configured for Gtalk or Yahoo (others i've not checked). During log in, it is not asking for access point & a message is coming "Temporary service problem. Try again later.[Code error:902]".

If somebody knows a trick, please help me out... I need chat not only for friend's purpose, but i use the same for business too.

[JudaZ]

Chat can be limited in some countries and by some operators, providing only support for some chatproviders,

This check is only done when you first setup and configure the chat client.

I would recommend you try another SIM card from another operator and see if you get more options.  If you do, configure that chat you want with this SIM, then change back to your SIM card.

And observe that you need a SIM card in the phone to use the chat 

[sanjayseal]

I was using E63, chat was running fine. All conditions remains unchanched with new E5, but now that's not working. I have downloaded a third party chat software - that is working, I need tha nokia s/w to work. I use wifi for chatting.