Flashing ASUS RT-N16 from OpenWRT back to original firmware

In this short tutorial i will teach you how to go from OpenWRT back to the original ASUS firmware on a RT-N16.
If you want to go from ASUS firmware to OpenWRT check MrDabrudda's video here • Update OPENWRT 19.07 t...
If you break your router (or any laws in your country) by folowing this tutorial i am not responsible for it, this content is only for educational purposes.

[@smiakus]

I spent so much time on this. And the problem is that if you have latest asus firmware the recovery tool will ONLY work if you set your pc IP address 192.168.1.2!