Lumia 535 Device locked for security reasons - Windows 10 10512. How can I fix this?

[Windows Central Question]

Lumia 535 "Device locked for security reasons" - Windows 10 10512

Took my Lumia 535 out of my pocket earlier, only to be greeted with "This device has been locked for security reasons. Connect your device to a power source for at least two hours and try again."

I thought that's strange, but I did exactly that and put the phone on charge for about 4 hours. I tried unlocking the phone using my PIN but I still had the message. I then rebooted the device about 5 times and every time I was still getting the same message.

This is getting ridiculous now and I currently don't have a usable phone. Any solutions?

 

[wicked alchemist]

i am getting the same (superb!) message on my screen while updating from windows 10 preview build 10512 to 10536.. did soft reset several times but all in vain.. someone has the way to get out of it? ASAP plz !

 

[cdb033]

I'm now facing this problem, did you guys find a solution?

 

[cdb033]

Did you find a solution to this problem? I'm locked out of my device as well.

 

[Layibaba]

Same message I'm getting on my screen.... need a fix

 

[randy_purnell]

Did anyone find a fix, I got this message last night???

 

[xandros9]

Have you people tried a hard reset using the key combo?
I don't recall it though.

But you'll probably have to revert the phone using the WPRT and upgrade again.

 

[twomill69]

Re: Lumia 535 "Device locked for security reasons" - Windows 10 10512

Same issue with my 735 running insider W10 build, searched online for key combo for hard reset, currently restoring/reinstalling phone is if new bypassing option to install from a previous build/update, just in case it goes' tits up again...all done....WOW !!! Phone looks like a W10 device......so, hard reset worked plus haven't lost a single photo.

 

[quietlion]

Just happened to me too. Locking via Find My Phone website fixed it.

QL