Windows 10 mobile build 10512 phone locked???

[Fatfox G]

So yesterday I installed the latest build of windows 10 mobile on my L730 and hard reset it.
I had kept a 8 digit PIN and require sign in was kept at 2 hrs or something ( I don't remember, duh)
I kept the device for charging at night and in the morning I saw this message on my phone after unlocking it using the PIN:

"This device has been locked for security reasons. Connect your device to the power source for at least two hours, and then try again"

My phone is now stuck at this screen but I'm receiving the messages, calls and other notifications but I can't go beyond that screen and use my phone.
Any solution??

P.S.
I kept my phone for charging in the night so it is pretty obvious that it was connected to the power source for more than two hours..

 

[prem chand]

the same thing happened with my L730 mobile with the same build. Please find a solution

 

[Rayy973]

Same here with my L920...
After several reboots it finally worked but few hours later, the same problem occurred...

No n?es to sua it's really annoying. I Can't use the phone...

 

[michael nabil]

Happened to me. Leave it two hours in the charger then soft reset it. It should work

 

[banjaboo]

So you confirm this worked for you? What device are you on? I'm having trouble getting mine to unlock.

 

[banjaboo]

I just left it plugged in all night, woke up in the morning... Did a soft reset entered my pin and IT WORKED!