Can't downgrade Xiaomi MJSXJ02CM camera

[danielcolumbus]

I've tried several SD cards but I can't downgrade to 3.4.2_0062 from 4.0.9_0409. I've read some article and I know that I can't downgrade my camera using tf_recovery.img file. Do you know other options to solve this problem? Thanks!

[chen2804]

yes here is the other way to do it,but normally only a few people can be able to do it。 here is the linkhttps://gist.github.com/belkone/fb63376a9b6b6ebe969e9c8f96c0defb