Problem with icloud kee chane

iOS and iPadOS

Hello! I usis in iPhone 6 and ios8.2.
I am try to sett icloud Keychain. I try too use verefecation code, but wen i am starting too write a code voiceover has bing crash and dos't talking and the time has bing pass.
I don't success too setup this.
In mac nuthing heppand wen i usis in a prove other device.
It's heppand too more people? Thenk!