I have a Dell XPS 15 7590 i7 + gtx1650 with OLED & fingerprint 97Wh battery. Service Tag: C4FK0Z2

Automatic bios update went south (stuck progress bar for hours, battery full and charger connected) and couldn't recover with usb (gets stuck at Dell logo).

In a pinch, I followed this link to make a programmer using an arduino, desoldered the flash and flashed this file



Now it booted but I have a considerably slow POST, ~30-40 seconds before the Dell logo. I entered the service tag in the bios.
I don't know if the bios image supports...