I have been trying to unlock my bootloader as per the instructions found here. I already have installed the drivers from Google USB driver folder that comes in Android SDK "extras" folder. However, when I try to start my device into the fastboot mode with cmd, it freezes.

I type "adb reboot bootloader" to the terminal, as instructed. It seems to be trying to restart my phone, yet it freezes before it can actually start up, stuck on the initial HTC screen.

Has anyone ever encountered an issue like this, or may anyone have an idea for a solution to this? I would manually enter bootloader menu and get my phone to fastboot if I could, but holding down the volume down and power buttons (as instructed here) won't help me at all. Pressing volume down and power simultaneously will simply start my device with a regular boot (and I have no means to "deselect Fast boot" - I simply don't have the option in battery settings).

I am on Windows 7 laptop and my phone is HTC Desire 516 using Android 4.3.

  • Have you tried to cold boot it first? Before you quick boot, you must cold boot it once.
    – Ethan
    Commented Jan 3, 2018 at 22:56
  • Does your laptop have a USB2.0 port? Have you tried that port for fastboot commands? Fastboot doesn't work with a USB 3. Commented Oct 30, 2019 at 13:10

1 Answer 1


Holding the power button + vol up will take you to recovery mode. In recovery, there is an option to reboot to download mode.

Otherwise, try different button combinations. I'm using HTC 626 and this happened when I was trying to boot in recovery mode by holding power + volume up and that was not working, but I was able to boot in recovery by holding all 3 buttons. Make a try.


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