[Q] cmw Recovery 4.2.2 topic

Hi All
Im using galaxy grand duos i9082 and im on official firmware 4.2.2

i recently downloaded cmw_chotu.tar ( something ) to flush recovery menu.. i did same procedure as mentioned through odin.

but when i try to enter into recovery mode. its showing blank screen and restarts normally...

please need help.. i used custom roms for 4.1.2 i wanna try custom roms for 4.2.2

Thanks in advance