Beta firmware version v6.4.62 downgrade Z9X

Hi there folks, Can someone help i want to downgrade v6.4.62 to v6.4.42
is there a guide etc to follow i dont want risk bricking it

 

Install the recovery full image (rename to image.img on stick and follow the guide to boot from stick.

https://www.mcbluna.net/wp/zidoo/zidoo-z9x-recovery-image-v6-3-92_g/

https://www.zidoo.tv/Support/support_guide/guide_target/TFlGi84dAUbeq7k9e[ld]3ulg==/guide_faq/raXr0bxKWKM=.html

After that just to the OTA update as always.

I have done it several times.

 

thanks mate