Mobile chess won't connect

The Chess.com mobile app works well on a broad range of mobile phones (provided they support Java and can connect to the Internet), but some models are problematic, and some users get errors using the normal link to download and install the app.
If you're having trouble, here are a few things to try:
1. Try this alternative link from your phone's browser:
http://chess.com/mobile/bin/www.chess.com/Chess.com.jad
That alone solves the problem for many users.
However, if that doesn't work and you are still getting errors, you may have better luck installing the application via computer:
2. On your computer's browser, open this link: http://chess.com/mobile/bin/www.chess.com/Chess.com.jar
3. Download the file and save it on your computer
4. Transmit file "chess.com.jar" to your mobile phone from the computer - using a cable, bluetooth, card-reader, etc.
5. Install on your phone
We hope that solves the problem. If not, please contact us, and we'll do our best to help. Unfortunately, it may simply be that the app won't work on your model of mobile phone.
Please note the mobile app will not work on most touch screen phones.

thank you for tryinh helping me
i did all what you said still same error message :(
i think i will wait till symbian version realsed :(

I have the same problem with my Blackberry 9700 running OS6. Neither the native app or the java one mentioned above will connect.
After blocking BES/MDS connectivity via permissions I now get a BB error saying it requested an internal connection which was not allowed (since I blocked it). It shouldn't be trying to use BES/MDS it should be using BIS for internet connectivity.
I suspect the native BB app does the same, can this be changed?
Hello guys
my problem is my cellphone is Sony erricson Vivaz
and i download the chess jar file installed fine but won't connect
an a message appear ( connection failed try again )
im already connected with internet and im surfing internet using my cellphone
so what the problem
and is there any chess file for S60v5
thanks