Greetings,
i know it is a old thread but i have the same issue with the disappeared virtual keyboard,
never used scim or mscim but used ukeyboard . The strange thing is that after a reflash of the phone ( both fiasco and emmc) the vkb is only working after the initial boot, if it is rebooted the vkb is not working again (no packages installed prior to the incident).

is there any solution to this behavior or a replacement keyboard that i could use ?

thanks in advance