almost perfect is also good

The particles work on my Wiko Rainbow as hoped and expected: It is easily recognized and stores all the data reliably.
The idea with the small plastic plug is awesome. But: the grooves must be sharp-edged. I was afraid to damage the jack. Therefore, I have some trimmed with a key file the edges.
Second criticism is the important small lid for the micro-USB connector is without permanent fixing and thus I lost him in the shortest possible time. A small 1.5mm hole on the side, a piece of fishing line and already the problem is fixed.
The fifth star is clearly to me, right?