Why is my Lumia 930 not updating to Windows 10?

[Windows Central Question]

why my lumia 930 is not updating to windows 10

I have lumia 930 and I installed windows insider and I'm a fast ringer and when I go to windows update it's 0% even after 2 hours it's 0% yet.
next problem is I want to download persian keyboard on my windows phone 8.1 on another lumia 930 phone but it's same another lumia 930 it's 0% after 2 hours.
please help me.

 

[NightOrchid]

is your 930 factory unlocked?,

if you have only SIM unlocked it but not unbranded it (Flashed the stock rom for your region) then it might not update.

or the update servers could be offline...

 

[TheLumaniac]

Have your tried updating your phone while it's charging? Also, be sure to use Wi-Fi instead of mobile data.