I've put your answers into google translation.
My Reciever is the following one:
LIDL SL65 ALI Chipset
The firmware I tried, was a firmware for ali chipsets (don't know the name) think it was "xeloa". After transmitted that firmware to the reciever, the revciever shows on and than 0. I've soldered out r23. But it doesn't help. Even the trick with switching the reciever on an trying to load firmware with aliupgrade doesn't work