ASUS - ZenTalk

Isn't Asus late to introduce its new phones? rog phone 5 march 10 zenfone 8 may 12 why haven't new models been released yet?

Hello my Zenfone 4 Max had android 7.1.1 operating system but I upgraded to 8.1 oreo beta and how can I revert to original version? I download my old version on the asus site and put it on the micro sd card, but the bootloader gives an error in the d...