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Hi, Summary: BIOS flash didn't change anything. Regardless of the BIOS stock on pin 2 and 5 of the Q3503 there is a nice square wave signal. There is no signal on pins 2 and 5 of Q3502 and Q3505. The only thing I managed to do was change the color of the backlight from white to red. Perhaps the...

Added items in green. Deleted items in red. There is nothing else in the diagram for this solution. What else needs to be done?

Thank you, but your file is identical to what I did with the update file. Nonetheless, I decided to check it and the result is the same as in the picture. I think a coherent BIOS dump from a working GA503QR-211 ZG15 is necessary. I don't see any other way.

This is the original BIOS. I deleted the windows key.

Now I know exactly what BIOS firmware I'm looking for. Does anyone have a working BIOS dump for the GA503QR-211 ZG15 model? This model was released in the US market and is one of the few with an RGB backlit keyboard. I downloaded the GA503QR update package from Asus support, extracted and...

I programmed version 309 and updated the BIOS to 413. No change whatsoever. Do you have any other BIOS batch? I need the GA503QR model because this model came out with RGB lighting. I don't think it will work on others. There is no sticker.

The BIOS was reprogrammed using the firmware from the forum. The system was cleanly installed. RGB lighting is still not working. AURA SYNC does not detect the RGB keyboard. Is there anything else that needs to be changed on the board? What could be the reason for this? Does anyone have any idea?

Hello again, I have reprogrammed the BIOS using the firmware from the link in the previous post. I am not sure if the situation has improved because when I start the laptop, the system asks for a Bitlocker key that I don't physically have. The drive is encrypted. Where in the BIOS firmware is...

Bios is original. Change bios to this one https://vinafix.com/threads/asus-rog-zephyrus-ga503qs-rev2-0-60nr04x0-mb2000.44725/

Hello, I am having a problem with the RGB backlighting on my Asus Rog Zephyrus G15 GA503QS-HN103T keyboard. Initially, the laptop came with a non-RGB keyboard, but it was replaced with an RGB model. Some missing components on the board, such as Q3505, Q3502 (PMDXB600UNE), R3511, R3509 (100kΩ...

Hi, Asus ROG GL503VD (FY260T) You have IT8296E-120A ROM The keyboard does not work. Help please