Can anyone help or has anyone had a similar experience

When I switched on the MCV24 it displayed �Warmboot MCV24�

I followed the steps from the Doepfer website but it stops at :

Calc 8 bit dac tab , and the unit will not go any further.



Any ideas Is it dead



It has been suggested that I may need to replace the internal battery. Is
this easy to do Do I need to solder anything



Many thanks

Grant


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