Question PC won't boot after updating motherboard BIOS.

Aug 10, 2021
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Motherboard Model: TUF B450M-PLUS GAMING
Bios current version: 1823 (trying to update to 3205)
Driver version: 3.00.65
Reason for updating BIOS: My SSD could not be detected so I decided to update the motherboard to see if it helps but now the PC won't even turn on.

I downloaded the downloads from the official website.
I followed exactly the methods shown in ASUS's own video guide. I followed every step until the end which says "Update successful! System will be reset!" and I clicked "ok". I thought the PC would restart itself but it never did, the monitor just shows "no signal". It never showed the error message.

But the casing RGB lights are on and the fans are spinning so I the PSU is fine. But the keyboard lights won't turn on. Its definitely not the PSU problem because it is still very new (used less than a month) and the I never had this problem before the update. I never took out any of the parts and had made sure none of the parts are loose. I'm pretty sure the update bricked my motherboard somehow.

Solutions that I tried but still failed:
  1. took out the CMOS battery for a few minutes and put it back, then tried to turn on the PC.
  2. Followed ASUS troubleshooting guide using the USB method.
 
Aug 10, 2021
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10
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take the gpu out and test with igpu
using hdmi or dvi?
Sorry, I'm not good at computers. When you said test with IGPU, did you mean plug the HDMI into the IGPU port of the motherboard and then try to boot the PC up? I tried it just now , monitor still shows "no signal". I'm using HDMI.
 

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