Firmware version 2.13.651.1 on HTC Evo 4G LTE brings several improvements including the HTC Sense 4.1 update which is claimed to be able to boost your device performance with lag-free experience, it also fix some issues including Wi-Fi issue. However, not all users love every improvements brought by latest firmware including me, it is because the Beats settings was eliminated from Sound Enhancer settings, there are only an option to turn on and turn off Beats Audio.
For music lovers who regularly use beats equalizer for listening to music, they shall be sad with the lack of beats equalizer.
For anyone who want this feature back, you are advised to flash your phone with custom ROMs based on 2.13.651.1 firmware that include Beats settings, but for those of you who don’t want to flash custom ROMs you can try to install Equalizer apps from Google Play Store like Poweramp. If you are planning to downgrade to an earlier version, you better re-think since some people have made them device soft brick after trying to downgrade to an earlier firmware, anyways Sense 4.1 updates is too good to be missed.