What happens, if I flash the LTE firmware to my Lumia 640 Dual Sim?

[ddavidg]

Can I flash the LTE firmware to my 640 Dual Sim, or it will brick the phone?

 

[libra89]

It depends on said phone.
Please make a Windows Central account to give more information, such as if the phone is a carrier version, and what carrier?

 

[xandros9]

If you're doing it in hopes it'll magically make LTE work, then don't.

 

[ddavidg]

As I mentioned, it's an unlocked MS Lumia 640 DS. I want to try it, but i'm afraid, it will brick that.