ESD regulations have to be followed !
18.104.22.168 First alternative (valid for both handsets)
First and recommended opening procedure (fast; housing will be destroyed):
Needed material: Opening-tool Gigaset 3000 and battery dummy Gigaset 3000
Insert pliers in belt-clip-hole and press to open upper part of the housing.
Do the same in the other belt-clip-hole.
Insert pliers in charging-contact-hole and press to open lower part of the housing.
If necessary do the same in the other charging-contact-hole.
ICM D CC ST