Help Updating a non-Nexus stock android phone

[Phone Update]

I have a phone , a G9 President. It runs stock android 4.2.1. Can it be updated using Nexus images ? If so, then how? And if not, then is there any way to update it because the manufacturer doesn't release updates.
Thank You.

 

[Pugs1957]

No, you need a ROM specifically for your device or you will brick it. There don't seem to be any custom ROMs available so I'm afraid you are stuck with the current firmware