As nobody have answered my question after I found this issue out in one of my other posts, I will ask again: Why Acer first updated the firmware of my BT from 4.2 to 5.0 with a BIOS update and after that with the next or with the last update there was a downgrade down to 4.2?
I have all BIOS files till now and if needed will unpack and extract both firmwares, but I am sure I don`t have to because Acer knows exactly what I am talking about.
P.S. Model is AN515-43
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