Hey Guys,

Have a DMG DMC 1035E with Siemens Simuneric 810D and getting 2100 NCK battery Threshold Reached - need to change the battery...

Where the heck is the battery?
I opened the interface (Behind the screen and buttons) and not visible there...
Do I need to remove some metal covers to see the battery?
Can It be changed with the power on?
Do I need to create a backup?

My machine is already connected to a server (ip address, username and password) -

Can anyone send me the procedure for backingup?

with thanks