You can downgrade to an older firmware and unlock the bootloader, then upgrade back, it's discussed in the xda thread. Obviously you'll lose all your data, but that happens anyway when unlocking.
I would also like to know. I have ASUS's bootloader unlock tool installed on my zenfone 8, but due to Asus shutting down the servers, it no longer works. Wish I had unlocked the bootloader earlier when the tool still worked...I had been considering u...
