I must be very blind to not see the obvious ???
As I said my 1.0.7 named December 21 wouldn’t upgrade with an error, my X7 exhibits 1.0.6 as current version
So I downloaded the 1.0.7JP version from 15 December
Now it refuses to upgrade because says X7 has a newer version. This is not correct as it says its 1.0.6
Ok, no problem, re-flashed official FW 1.0.6 with the tool - ok
Upgraded to 1.0.7JP, fine, no problem, now it says it has 1.0.7JP
FiiO music app is absolutely equal !!! What the heck??? Where is the new app??? HEEELLLPPPPP, I am dumb