Hi, from what you describe it sounds like you need to set up the endpoints on your radio.
I am not familiar with the Betafpv Literadio 2, but the issue sounds similar to what some Taranis users are experiencing (depending on what firmware version the Taranis is running).
In the case of the Taranis, the endpoints sometimes needs to be set up so that the range is from 0 to +100 (instead of -100 to +100)
It is described in this document: https://drive.google.com/file/d/0BwSDHIR7yDwSOGhPMTFyWEpDVWM/view?usp=sharing
There is also some youtube videos that shows how to do it on the Taranis, for example: https://www.youtube.com/watch?v=XlR5eqm1aKE
Also, if the automatic stick detection gets it wrong during calibration in Freerider you can manually click the circle that you see is the correct one (instead of clicking 'OK')
Hope you can use a similar method on your radio to get the calibration to work correctly!