Since then the question arose whether we should return it or open the thing. We finally decided to open and the consequent loss of the warranty.
After opening, we could very quickly determine the cause. Inside there is a backup of the absolutely nothing was in the guidance was defective and came here, was how quickly determine the continuity tester. A final inspection is therefore never experienced this device.
Stupidly enough, the backup also soldered yet been determined and therefore not interchangeable. If so, the backup times really do their job, it is for the user as if the security were not there. He can throw the device in any case.
We now solder a currency holder for securing and building the receiver then, also because of better wiring options, open to a larger-wall box with screw lid a.
Three points only because the unit now works at least.
