I have a bit of a mixed problem in my Xperia arc s. I started by trying to install apps, and I got that message saying "There was a problem parsing the package". I checked "unknown sources" in settings and made sure that I matched the minimum sdk required or higher and still the same message.
After that I tried to install a different rom, but whenever I flash a kernel I get stuck in CWM and the rom's zip file is not found! Even when I open the sd card from windows explorer it seems that the zip file has disappeared.
I used flashtool to get back to the original rom, but again whenever I try to install an app I face that "Parsing Package" problem again!
So what's wrong here? How can I get my phone working again so I can install apps?