Why is my Lumia 620 asking for a PIN after starting for first time when upgraded to Windows 10?

[Windows Central Question]

lumia 620 asking for PIN after starting for first time when upgarded to windows 10

i upgraded my lumia 620 on win 10 preview, when the phone started fro the first time it was asking for the pin, the page does not show any 'OK' or accept option, nor did my sim security or phone password was accepted, tried hard reset, but of no use.
rolled back to 8.1, disabled sim security and upgraded again but still the same

 

[Czesky]

Re: lumia 620 asking for PIN after starting for first time when upgarded to windows 10

Before upgrade set password as 0000 and then try to do it.

 

[umair_alig]

Re: lumia 620 asking for PIN after starting for first time when upgarded to windows 10

i removed the password an then updated the s/w
its wrking now
thanxx