@badblocks how do you connect the link to the computer ?
have you tried switching cables and USB ports ? Did you get to try it on an other computer ?

@Support_AODYO well actually I have tried several times with v.1.4.8 beta, also with 1.4.7 and earlier versions, still nothing...

@Support_AODYO I am having the same problem, I've been doing really exciting things with my sylphyo these days and I don't want it to stop :'( pls help me !
I've tried all the solutions listed in the 2 threads about the same issue and nothing helps...