Sorry for such a basic question, but this is driving me mad.
I have been able to install lots of .sis apps, I have a Nokia 6100.
I've tried all the versions I can, I can't get any to install. I get "unable to perform operation".
I'm sure this is something really basic that I'm missing... My Nokia 6100 is quite old.
I think it's supported though isn't it?
Thanks in advance for any help.