A few days ago my X20 that was performing very well, lost USB function.
Now it cannot be fast charged, its charging very slowly (~12h), and, on some chargers it start loosing battery power! Computer(s) doesn’t recognized it BUT i succeeded to BURN firmware with “Burn tool” over USB (and driver included in that tool), so, it is still functioning!
All other functions are working well.
That’s maybe software problem. What can I do else? Is there any tool to revive USB function?