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I need to hard reset my HDC A9100 any way I can. Please, does anyone know how?

To clarify: I need to overcome a forgotten screen lock, and the documentation provides no helpful information (it's here:

A few attempts at the 'hold the volume buttons' etc while it powers on have been unsuccessful.

I do know the right username/pass combination for the "forgotten your..." screen, but it doesn't appear to work.

Does anyone have any recommendations?

share|improve this question
Why do you need to hard reset? Surely your HDC A9100 has some booklet or documentation on this? If not, please clarify what Android version you're running. It could be a factory reset that is needed? – t0mm13b Oct 7 '12 at 0:14
edited to include more info. – N. McA. Oct 7 '12 at 11:23
Still looks like you rather mean a factory-reset. Please hold your mouse-pointer over the tag to see what hard-reset stands for: nothing but a "forced reboot", which is unlikely to solve your issue. I'd rather re-phrase your question, as it is what we call a XY-problem: You probably don't want to know how to do a hard-reset, but how to overcome your screen-lock problem, correct? – Izzy Oct 7 '12 at 22:50
See also: Q: Cannot unlock tablet as have no internet connection?, which has a lot of solutions to get around the issue. – Izzy Mar 23 '13 at 16:18

Have you tried the standard Android hard reset? I heard this works for all Android phones.

  • turn it off (if you cannot shoot it down, remove the battery).
  • hold both volume-buttons and the home-button and then hold the power button. about 5 seconds

use this at your own risk! You will lose all your installed data and get a clear reset to shipping settings, if it works.

there are some videos about it on youtube.

share|improve this answer
Is this standard across the board? Clearly the OP has not provided enough clues. – t0mm13b Oct 7 '12 at 0:15
I added some more info, but I've tried this and it didn't seem to work... – N. McA. Oct 7 '12 at 11:24

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