Se ve que tienen problemas con los servidores:
https://www.facebook.com/mlaisoffici...83271611955992
"
Hi everyone,
As you are all aware we promised that Lollipop would be rolling out for the Mlias M52 today via an OTA updates. You have probably sat waiting for the update to come and wonder what is taking so long. Well the truth is we are having a few server issues on our side of things. We have been working hard to resolve the issues and we hope that OTA's will commence before the end of the day, or at the latest tomorrow.
We are really sorry for the delay but we are doing everything in our power to solve the issue.
Lollipop will make your M52 an even sweeter deal, and will be well worth the wait!"