I decided to update the core code on my board after running through some incorrect readings using the multiplexer capelet [(https://forum.bela.io/d/4014-multiplexer-not-working-well/2)] - similarly as this case. however, the update did not seem to occur properly, and I am unable to run any projects now 
- I have no sd card in my bela, which would explain the lack of space available - and the IDE does not run. Bela's d2 led is flashing. what should I do? is there a way of fully resetting the bela? thanks.
Update issues
see if you can still get onto the board via ssh
In a terminal, run:
ssh root@bela.local- Edited
that's a no ... then you'll need to reflash the image on an SD card using this image https://github.com/BelaPlatform/bela-image-builder/releases/tag/v0.3.8h and update the core code once you boot it.
- Edited
giuliomoro the IDE is up and running again - and the core code has succesfully been updated, thanks Giulio! 
if you keep running from SD card, you can use fdisk to resize the file system so that it uses all the available space, or alternatively reflash the eMMC with the content of the SD card. For more details, see https://learn.bela.io/using-bela/bela-techniques/managing-your-sd-card/
giuliomoro will do, thanks!
giuliomoro added the Solved tag .