How to install Custom recovery TWRP For Samsung Galaxy Ace 2

1-Download Odin Flashing tool

2-Download TWRP recovery md5 file Here

3-Download Samsung and android drivers Here

4-Connect your ace 2 via usb cable with laptop or pc

5-Open Odin

6-Put your phone into download mode ("Vol Down + Home + Power").

7-You will see yellow sign on up left mean that you are connected

8-In PDA section select MD5 file you downloaded

9-Hit start button

10-your phone will reboot and all done