...
Unpacking xkb-data-extkbd (from .../xkb-data-extkbd_1.8-1-1m5_all.deb) ...
dpkg: error processing /var/cache/apt/archives/xkb-data-extkbd_1.8-1-1m5_all.deb (--unpack):
trying to overwrite `/usr/share/X11/xkb/geometry/pc', which is also in package bt-hid-scripts
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/xkb-data-extkbd_1.8-1-1m5_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Now it doesn't let me remove or install neither of those packages even after reboot. Apt-get -f install didn't help. Is reflashing the only solution to this? Luckily I have fresh back-up.

Edit: You're too slow.
dpkg -P bt-hid-scripts and apt-get -f install helped.