The device will not turn on, is unresponsive, or has a black screen.
The device may not turn on if the reserve battery power has drained or if the battery logic is corrupt. Battery logic allows the battery to respond to a fatal crash or error, and helps avoid damage to the device.
To turn on the device, follow these steps:
- Plug device into the HTC wall charger that came with the device.
Nota: Do not use a computer to charge the device; this does not provide enough amps to ensure the battery will fully charge.
- Charge the device until the LED glows solid. (This can take up to 20 minutes.)
- While still on the charger, press and hold the Power key for 15 seconds.
- If the issue persists, press and hold Power, Volume up and Volume down keys for 1 - 5 minutes. This process will recalibrate the battery, and allow you to power on the device.