Thanks guys! So, I shouldn't delete system apps like I did - lesson learned...
Meanwhile, I've managed to break the thing even more =[
I tried to get into "safe mode". I seem to have pressed some particular combination of the reset button and the volume button and now the screen is completely dead (black). I'm wondering if I fried the hardware because to get to the reset button I used a bit of wire and I might have accidentally touched the HDMI connector with it.
Now it won't boot, no matter how long I press the on button, or if I try the reset button.
However, at least part of the USB system is still working. If I connect the tablet to the PC I can see it listed as "USB Device(vid_1f3a_pid_efe8)".
So, I downloaded livesuit and a new rom. Tried to flash it a couple of times, but the flashing process doesn't start. I'm getting a cryptic warning dialog which says...nothing at all!
Any help will be greatly appreciated...