How do I fix my HTC Evo black screen?
Continue holding the VOLUME button while the phone powers on, and then release the VOLUME button when you see a screen with menu options. Press VOLUME DOWN to scroll to the Factory reset option, and then press the POWER button.
The HTC EVO 4G LTE does not contain a SIM card.
A monitor that keeps going black is an obvious sign that something’s wrong with your computer. The question is, is the problem trivial or serious? Often, the culprit is a loose or broken cable – an easy fix. Sometimes, however, you’re looking at a bad monitor or damage to the computer itself.
Perform the hard reset by holding down the “Volume Down” button while you turn on the EVO. A boot menu will appear on the screen, which should still be working as the device hasn’t loaded its operating system yet. Choose “Clear Storage” to complete the hard reset and see of your screen starts working again.