Thye body has got some rainwater at Wednesday – after that it was beeping by any button activations. I disassembled it Friday – son only after 2 days.
I the inside I couldn’t find anything till the last moment. The really last part was the flash / DC-DC board. On it’s lower side was a corroded socket and a flat cable.
I have no idea, why the rainwater causes this quick corrosion. .Do we really have acid rain in Hungary, or was it a former salt patch, from a water penetration in the past, dissolved by the rainwater?….