It seems that i'm having error messages even when i'm accessing the pre-installed softwares(messages, ir, contacts, etc...). Please help me restore the original software of my phone, thanks very much
is there a way to reformat/reinstall the 7650 OS?
*#7370# should do the trick.
In future, please use the 'Search' feature, as this is a very frequently asked question.
Cheers