ASUS ROG STRIX G512LW-ES76 BIOS

[pete18064]

MB : G532LWS R1.3
S/N : L8NRKD02360734A
Intel Core i7 10th GEN
NVIDIA GE FORCE RTX 2070

Hello all, I have been researching an issue on my son's laptop. The laptop powers on, but has no video. The video briefly worked with the USB-C port, but has stopped displaying video all together. So, no HDMI, screen, or USB-C. It is starting up, I can see the backlight but no display. You can hear the annoying startup sound when it turns on. My son told me that it completed an update and then the issues began.

After my research I have found that a lot of owners of these laptops have had issues after system updates. I have downloaded the boardview file and schematic. I can see that the board has 2 BIOS chips, and I am almost certain that the main BIOS chip is U2802 (MX25L12873FM2I-10G). There is another chip, U7802 (W25Q80EWSNIG-ND), but it is only an 8Mbit chip, which is too small to hold the main BIOS file from what I have learned.

I have purchased a CH341A programmer and I will need a BIOS, so I can reprogram the chip. In my research I have also read that you cannot just upload a BIOS file that has been downloaded from the ASUS website. Is that correct? I want to do this correctly, so I will appreciate everyone's guidance before attempting to reflash the BIOS chip.

I am new to this, so if my assumptions or understanding are incorrect, please feel free to correct me. I am here to learn from this experience and hopefully continue my learning experience.


Thanks,
Pete

[hoaca388]

MB : G532LWS R1.3
S/N : L8NRKD02360734A
Intel Core i7 10th GEN
NVIDIA GE FORCE RTX 2070

After my research I have found that a lot of owners of these laptops have had issues after system updates. I have downloaded the boardview file and schematic. I can see that the board has 2 BIOS chips, and I am almost certain that the main BIOS chip is U2802 (MX25L12873FM2I-10G). There is another chip, U7802 (W25Q80EWSNIG-ND), but it is only an 8Mbit chip, which is too small to hold the main BIOS file from what I have learned.


Thanks,
Pete

Bios chip here.

[pete18064]

Thanks hoaca388!

I ordered a CH341a and was able to download the BIOS. Can someone please provide a new BIOS, or can I just download it from the ASUS website. I would like to learn how to do this with some guidance.

Should I upload the bin file I downloaded from my BIOS IC?

Thanks,
Pete

[hoaca388]

Thanks hoaca388!

I ordered a CH341a and was able to download the BIOS. Can someone please provide a new BIOS, or can I just download it from the ASUS website. I would like to learn how to do this with some guidance.

Should I upload the bin file I downloaded from my BIOS IC?

Thanks,
Pete

I need you to backup bios with your CH341A device, even if it is broken.

This is the most important step when requesting bios repair.

[pete18064]

Hello hoaca388, I performed 3 dumps, compared the 3, and they are identical. I have saved the 3 files, so the backup part is done.

I was going to use the firmwares provided in the following post, but I am not sure if that was the correct thing to do. https://www.badcaps.net/forum/troubl...es76-bios-help


Here is the file.

Thanks!

[pete18064]

hoaca388, should I try the firmware from the post I listed above, or is too risky?

[hoaca388]

hoaca388, should I try the firmware from the post I listed above, or is too risky?

ROG Strix G15

[pete18064]

hoaca388
, or anyone else can chime in, since I am new to this I want to be sure that I have the correct IC identified as the BIOS chip. I have identified U2802 as the BIOS, but there are 2 ICs on this board and the other is U7802. Am I correct, that the BIOS is on U2802?

Thanks,
Pete

[pete18064]

Thank you hoaca388 for the FW. The laptop boots into the BIOS, but I get a flash of the logo, and then it goes to black screen the majority of the time.There have been times when it boots into the BIOS and the logo flashes in the center of the screen and it goes to black screen. Then, there have been times when it boots into the BIOS, but only half of the screen is visible. The BIOS screen is completely visible, cropped into half of the screen. What would the suggestions be in this case? I suspect the GPU has solder issues, but I am not sure.

[pete18064]

I wanted to add that I checked to see if there was a display signal on USB-C and HDMI, but it was not present. Even when I get the two situations above I have no display on USB-C or HDMI. The backlight is working correctly, as far as I can tell. I have performed these tests with the drive disconnected. I figured if it has problems with the drive disconnected then it was and issue with the BIOS or the GPU. Please let me know what you guys think and what steps should I take now.