thank you for your great diy. I used your thread for my own upgrade.
Unfortunately it won't work on my g53sw. I can't install the driver for the new gtx560m. I've tried your modded inf-files and nvidia driver 378.49 but i was not successful. After a few failures i compared the bios files for the g53sw and g53sx. Both files have the same size. So i edited the g53sxas.209 with my hex-editor. It was very simple. I changed the filename from g53sxas.209 to g53swas.209 and changed every g53sx (47=g / 35=5 / 33=3 / 53=s / 58=x) in the hex editor to g53sw (47=g / 35=5 / 33=3 / 53=s / 57=w).
Put the modded bios file to my fat32 stick and started ezflash from the bios. The flash worked like a charm.
After bios flash reset to default and changed my bios settings back to my preferences. Windows started up and i was happy.
The big advantage is a normal behavior with the nvidia driver installation.
One last point. The nvidia applications like system control recognizes the system now as a g53sx.
After the mod i had to install a few drivers again but i can't clearly say why, because windows update was very diligent, too.
Now my system:
g53sw / 8gb ram / win10 home 64bit / i7-2630qm / gtx460m 1.5 gb 192bit
g53sw / 8gb ram / win10 home 64bit / i7-2630qm / gtx560m 3.0 gb 192bit
thank you for your work and i hope my mod will help you with your customer.
A few pictures