The poster mentions there that there are two different files with exact same name AthrBT_0x11020100.dfu
When he got the correct file, bluetooth started working for him. And for me too! I am attaching this file not to rely on Dropbox. I will also attach his version of ramps_0x11020100_40.dfu, it has one byte difference from the other one.
Solved it!
By pure luck I found this post https:/ /forums. gentoo. org/viewtopic- p-7778652. html?sid= ba3417b8609ca71 034947d0eeaabdc 73
The poster mentions there that there are two different files with exact same name AthrBT_ 0x11020100. dfu
When he got the correct file, bluetooth started working for him. And for me too! I am attaching this file not to rely on Dropbox. I will also attach his version of ramps_0x1102010 0_40.dfu, it has one byte difference from the other one.