I was attempting to delete designs from the memory and a memory error came up and the machine went down. It will not start up now, but the fan and the inverter are both working.  I wondered if the internal battery had gone, and how you would replace it as it appears to be soldered on to the board.

TIA

Celtana

You need full OFF embroidery machine, and waing -15-30 minutes. After that restart. Don;t replace yourself battery. Need call to dealer.