Lumia 640 Dual Sim Crashed after Windows 10 update, how can I get it working again?

[Windows Central Question]

Lumia 640 Dual Sim Crashed after Windows 10 update

After Downloading the Windows 10 update; the phone shows a blue screen when booting during installing and refuses to go ahead.

 

[Maurizio Troso]

Re: Lumia 640 Dual Sim Crashed after Windows 10 update

After Downloading the Windows 10 update; the phone shows a blue screen when booting during installing and refuses to go ahead.

Try the hard reset sequence keys, or connect your pc and go to Windows Device Recovery Tools