DM Spark 990 flashed?

Hi,
I just got my DM Spark Reloaded & upgraded it to ver. 1.2.68, which worked fine.
In "factory default" I switched to "Enigma2."
(I`m sorry - I`m new to Linux)
Since that I can`t boot it anymore. Front panel says "LoAd" , or "boot"
There seems to be no way to get it started again.
I really hope I didn`t kill it, for it`s such a great item!
Maybe somebody can help me here, please.
Thank you!