1. Download and place the Recovery Image onto your Desktop.
2. Connect your device to your PC using the USB cable.
3. Copy the Recovery Image over to the root of your SD card. It’s the topmost folder.
4. Once the file’s copied, disconnect your device from your PC.
5. Now head over to Google Play and install the Terminal Emulator app on your device
6. Once installed, launch it on your device.
7. Type in following commands into the app. Make sure to replace twrp.img with the actual name of the Recovery Image you downloaded.
su
dd if=/sdcard/twrp.img of=/dev/block/mmcblk0p22
8. Once the recovery’s installed on your device, reboot your device.
9. You’re all set!
Congrats! Your HTC EVO 4G LTE is now rocking TWRP Recovery and now begins your race towards customization!