Problem with software update on Z5

[Kickyourhead]

Хочу обновить до 7.1.1.пишет мне постоянно Error occurred. Я нажимаю ок,и следующее появляеться Software update failed. Please try again. 

Подскажите как решить проблему

I want to upgrade to 7.1.1. It writes me constantly Error occurred. I click ok and the next one appears Software update failed. Please try again.

Tell me how to solve the problem

gt