Hi i have recently had some issues with my sony Xperia, regarding the sim and networks, i changed sims and same thing was happening it wouldn't let me onto any networks. I found many online forums recomending this Sony pc companion because apparently its a issue with android on sony so this interface is suppose to have the tols to fix it without a factory reset.

However i cannot find a working version of this program everything crashed on my pc ( that could maybe be a problem with my operating system i get it ) and if it doesn't it does not link up with the phone even though the pc recognise the phone.

Any suggestions on either of the issues ?