Polar 115X (memory bank fault 240)

Hello..I am facing a problem with polar 115X the fault memory bank fault 240 appears when trying to save the program, after testing the battery 3.6v on the board I found it 0v, I have replaced it with new one but the problem still exist.kindly advise

 

It's a common issue after battery drainage. Try to delete the memory bank A and B. Then you are able to save jobs again.

 

Could you please explain how to delete the memory bank please, thanks for your kind support

 

Could you please explain how to delete the memory bank please, thanks for your kind support

 

You have to enter to service mode and delet memory A and memoryB
Password 8520