HTC's Sense 4 may be leaner and faster than previous versions, but one thing my EVO 4G LTE sorely lacked was the "Quick Settings" option that Sense 2 and 3 had. Developers were able to port it to Sense 4 for Android 4.0 (Ice Cream Sandwich), but the only way to get this feature was to install a custom ROM. With the update from ICS to Android 4.1 (Jelly Bean), my EVO 4G LTE received the new Sense 4+ version. This new Sense made it possible to add widgets to the Notifications pull-down menu, so...
Sense appears on over forty Android devices, but HTC's notorious GUI was actually designed with a completely different mobile OS in mind—Windows.
Your HTC EVO 4G LTE has been lying to you. It will tell you when you're connected to a 4G network, but it will say 3G even if you're connected on 1X, which is a 2G CDMA network!
Nearly two years ago, Peter Chou, CEO of HTC, confirmed that the company would no longer be locking bootloaders. Whether or not they've actually lived up to this claim is debatable. Any phone bought from a wireless carrier comes locked. Only the new HTC One Developer Edition ships with an unlocked bootloader, and it does not have any carrier add-on software installed.