Default [Q] Installing cwm on funbook p280

I want to install cwm recovery on my funbook p280. My device is already rooted but not unlocked my bootloader to install custom roms please help me. My device is rooted with the help of bin4ry. (Same procedure followed for a89). I tried a lot of procedures like novotools,nandroid manager,flashing cwm using adb drivers, rom manager they are not working. My device has Jellybean(4.2.2) inbuilt.