Xperia Z won't update thru wifi download

[LeoFont]

Hi,

My xperia Z has a problem with the usb conection so I'm trying to update by using the wifi option. However, it starts to isntall but inmediately aborts instalation. Anyone here knows what to do about it?

I have Android 5.02 (lollipop) and I'm trying to install marshmallow. 

Thanks 

[_alexdon_]

Really strange. Any chance you could perform a software repair using Xperia Companion? Ask him about the phone too.

[CameronT]

@alexdon,

He can't do the software repair because he has connection issues with his USB.

@LeoFont,

What are the connection problems you are having via USB? I am sure you can do the update via Xperia Companion, but you will need USB connectivity for it to work. If we can resolve the USB problem we might be able to resolve the update problem too.