Hello Patrick1, many thanks for your hints.
I removed SD card via software, according to your instructions, first photos could be made and were visible in “Fotos” app, also images could be watched in WhatsApp and Telegram, but then, I don’t know either when or why, that was impossible. Also screenshot could be made 2x, then impossible. Strange.
I’m wondering also that my FP2 shows internal memory and sd card in app “Dateimanager+”, but at my wife’s weird FP2 it shows only sd card.
I’ve already updated my wife’s FP2 successfully to 19.08.1 manually via connected MacBook. Now I’ll try to get a SD card reader and check the card at my business Win10 PC.
I do not know anything about Android, sorry. Could you eventually give me some more hints where the data “updater MD5”, WhatsApp photos and movies, Telegram photos and movies, Camera photos are being stored? Are these data stored at the internal or sd card memory. Sorry in advance for this dummy question.