With this method you can easily root and enter into the recovery
Follow These Steps:
Download Link: see the reply to this post below.
EXTRACT THE DOWNLOADED ZIP FILE.
YOU GET THESE FILES:
1.Odin3_v3.10.7(Flashing Tool For Windows)
Steps to root and Install Twrp Recovery on GT-S7262
1.install samsung usb driver and open odin tool and click on AP and browse for downloaded file-GT-S7262_4.1.2.tar and click open.
2.now reboot your device in download mode and connect to pc.
3.odin will show added.
4.now click on start.
5.when it shows green pass then disconnect you phone and reboot.
Now your phone is rooted
6.rebot your phone once again in download mode and connect to pc and flash twrp-s7262.tar.md5 as AP (make sure to untick Auto Reboot in odin).
7.after its completed reboot and install quickboot,apk after install open quickboot app and grant superuser access.
8.now tap on recovery option and it will take you to the twrp recovery .
If you have to get supersu (recomended) then flash SuperSU.zip in twrp recovery .
PLEASE HIT THANKS IF IT HELPED!