Looking firmware Asus RT-AX86U Pro

Hardware Questions and Recommendations
1

Hello everyone. Please help me flash (need firmware) Asus RT-AX86U Pro router.
I would be grateful.

2

That is a Broadcom-based device, so is not supported by OpenWrt.

3

Try asuswrt-merlin repackaged oem firmware. broadcom AX wifi has no open drivers.