Ie, the log is filled with things like this, which are fragments; they should all start with `253` (0xfd as in the hex repr from Putty)
```rust
Invalid mav start byte: [5, 0, 0, 8, 110, 110, 234, 3, 0, 0]
Invalid mav start byte: [0, 2, 0, 2, 192, 137, 253, 48, 0, 0]
Invalid mav start byte: [9, 110, 110, 232, 3, 0, 0, 0, 0, 0]
Invalid mav start byte: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Invalid mav start byte: [0, 0, 0, 224, 127, 63, 0, 64, 69, 188]
Invalid mav start byte: [0, 224, 99, 60, 0, 64, 174, 188, 124, 87]
Invalid mav start byte: [82, 63, 8, 115, 71, 63, 233, 133, 190, 64]
```