Asus ROG Strix Scar G533qm with a G733qm Motherboard, can I modify the Bios to accept G533 Bios

[glovecaps]

Hello,

I have a Asus ROG Strix Scar 15 (G533QM) that had a dead motherboard (Graphics card dead) and after trying to fix the motherboard with no success, I bit the bullet on a sale for a new motherboard. I ordered a motherboard for the 15 inch model which is the one that I have, and when the motherboard arrived it wasn't for a little while that I saw it was from the 17 inch model.

My question is, can I update the Bios on this G733 motherboard to a G533 Bios.

The reason for wanting to do this is that the keyboard isn't working as it should, and I think this is because it doesn't know that it has a much smaller keyboard plugged in than it should and is thinking that some keys are in the wrong place. List of keys that have issues are as follows:
- Fn key not working
- Left shift not working (big problem for playing anything)
- \ not working
- alt gr is registering as control
- PrtSc not working
- Delete is registering as Page Down
- Play button not working
- Stop is registering as insert
- Previous Track is registering as Print Screen
- Next Track is registering as Delete

There are all the issues that I think are present and I have tried alot of things before asking on here if anyone knows if I can do a bios swap.

- Updated bios (G733QM)
- Downgraded bios (G733QM)
- Uninstalled Keyboard and USB Drivers
- Uninstalled MyAsus and Armory Create and Reinstalled
- Driver updates
- Disabled Fast Boot in bios and in windows when the laptop is closed

Hopefully some will be able to either change a bios file for a G533QS that I can then load on this motherboard (G733qs) and that will fix the problem with the keyboard. I have no clue if this is what the issue is but I think it makes sense in my head that the motherboard is looking and trying to place keys where they should and shouldn't be.

Thanks in advance.

[SMDFlea]

There are extra keys on the G733QM keyboard compared to the G533QM , the keyboard mapping is different, the EC firmware will be different, so besides trying a different bios you might have to flash the EC with a programmer, if it doesn`t self-flash from the bios (if the EC is in the bios ?) Do both motherboards have the same EC and bios chip part numbers.
Do both motherboards have the same model number and revision.

[glovecaps]

Thank you for the information. I have had a look at the board that is in the laptop now and the old dead board. They both have the same name and model number (G533 - 6050A3250201 - Mb - A02(A2)). The G733 board (The one in the laptop that works) even says it's a G533 on the motherboard itself. I have attached pictures.

I think that I have also managed to find the bios chip, but I am still new and not too sure if it is or not, but again both of the boards have the same chip and numbers. I have also attached pictures of the chip that I think is the Bios chip.

Would it be safe to assume that I could try and flash the EC with the information/files from a G533 to make this board into a true G533.

[glovecaps]

Just had a thought, if the chip that I attached in the previous comment is in fact the Bios chip for this board, would I just be able to de solder it from the original board and then re solder to the new one and see if that would work from there, or would there be other chips that have to swapped over too.

[glovecaps]

So I took the Bios and EC chip off the old motherboard, and transferred them to the new motherboard and the laptop would power on (keyboard lights and activity lights, however it would not post or display anything. Would there be another chip related to a bios change as I have just reverted back to the original EC Chip to be able to somewhat still use the laptop.