thanks...

Hey guys, how are you? I needed help with the BIOS on my DELL G15 5515 RE GDL5L LA-K454P. I no longer have the original dumps, but mine uses the W25Q128 (16MB) and the GD25Q80 (1MB).
Service Tag: 72TXVM3

I tried using the BIOS + EC from the Dell website, but now my PC doesn't have audio, Wi-Fi, LAN, etc. working.

If you need the original files from Dell, get the .exe file and start the program. Wait for it to go to the update screen. Or, if it's an older version, let the IHISI error message appear. Then, you don't do anything. Open Windows Explorer and go to C:\Windows\Temp\....